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1 General system information 21.1 Full-bore flow system 21.2 System components 2
2 General installation instructions 32.1 Installation to Wavin system design 32.2 Pipe installation according to Wavin’s instructions 32.3 No slope in horizontal pipes 32.4 No siphons in the system 32.5 No obstructions in the pipe system 42.6 Only use 45° bends and 45° tees 42.7 Use only eccentric reducers / increasers 42.8 Only install expansion joints where provided in the design 52.9 Fix roof outlets and pipe system according to Wavin’s instructions 52.10 Do not connect gravity pipelines to the Wavin QuickStream system 62.11 Connect to a gravity system of sufficient capacity 62.12 Use prescribed pipe materials and pipe classes 6
3 Transport, storage and handling 73.1 Pipes 73.2 Fittings and accessories 7
4 Recommended sequence of installation 84.1 General installation recommendations 84.2 Sequence of installation 8
5 Installation of the roof outlets 95.1 General installation recommendations for roof outlets 95.2 Installation of roof outlets of an emergency overflow system 105.3 Types of roof outlets 115.4 Moisture barriers 215.5 Wavin QuickStream outlets on green roofs and parking decks 215.6 De-icing electrical heating elements 21
6 Jointing the pipe system 226.1 Cutting polyethylene pipes 226.2 Principles of heat fusing polyethylene pipes and fittings 226.3 Butt-welding 226.4 Electrofusion welding 246.5 Installation of expansion joints 26
7 Fixing the Wavin QuickStream PE system 277.1 Fixing the horizontal collector pipe 277.2 Fixing the roof outlet connecting pipe 307.3 Fixing the vertical downpipe 31
8 Special constructions 338.1 Pipe systems embedded in concrete 338.2 Fire protection 338.3 Thermal insulation 348.4 Acoustic plus thermal insulation 34
9 Connection to the gravity system 359.1 Discharge systems and capacity 359.2 Buried pipe systems 36
10 Commissioning & Maintenance 3711 Problem solving / technical support 38
Contents
Installation Manual Wavin QuickStream PEContents
www.wavin.com1
Wavin QuickStream PE
1.1 Full-bore flow system
Wavin QuickStream is a siphonic roof
drainage system. Whereas in conventional
gravity roof drainage systems gravity is
the only driving force for discharge, in
siphonic systems a gravity induced
vacuum will boost the drainage function.
This is achieved by preventing air being
sucked into the roof outlets during heavy
rainfall.
A specially designed roof outlet with an
air baffle and anti vortex vane only allows
the intake of water and prevents the
ingress of air, so allowing full-bore flow to
be achieved (see figures 1 & 2).
At full-bore flow, the difference in height
between the roof outlets and the
rainwater discharge level is utilised to
gain the energy that will increase the flow
velocity of the water in the pipework.
The combination of elimination of air in
the pipework and the increased flow
velocities, result in a considerable
increase in discharge capacity, leading
to a significant reduction of the pipe
dimensions.
Installation manualGeneral system information
1. General system information
Figure 3. System components of the Wavin QuickStream system.
Figure 1. Conventional roof outlet. Figure 2. Siphonic roof outlet.
1.2 System components
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Twelve basic rulesTo ensure proper functioning of the
Wavin QuickStream siphonic roof drainage
system, some general requirements related
to the design and installation of the system
must be met. Therefore please note the
following important rules:
1. Installation to Wavin system design
2. Pipe installation according to Wavin’s
instructions
3. No slope in horizontal pipes
4. No siphons in the system
5. No obstructions in the pipe system
6. Only use 45° Bends and 45° Tees
7. Use only Eccentric Reducers /
Increasers
8. Only install expansion joints where
provided in the design
9. Fix Roof Outlets and Pipe System
according to Wavin’s instructions
10. Do not connect gravity pipelines to
the Wavin QuickStream system
11. Connect to a gravity system of
sufficient capacity
12. Use prescribed pipe materials and
pipe classes
Figure 4. Example installation drawing.
2.1 Installation to Wavinsystem design
For each Wavin QuickStream system,
Wavin will make a site-specific hydraulic
design. Deviations from design might
impair design criteria and discharge
capacities.
Wavin uses dedicated software to design
Wavin QuickStream systems. This means
that the installation should be made exactly
according to the drawings supplied by
Wavin. Every deviation from design in
the installation might lead to an imbalance
of the system, resulting in incorrect
functioning of the system. All deviations
from the supplied drawings should
therefore be discussed in advance with
Wavin’s design department. Wavin shall
always send a written reply to such a
request.
2.2 Pipe installationaccording to Wavin’sinstructions
A good quality installation depends upon
proper handling, jointing and fixing. Good
workmanship is a key to success. In the
following chapters 3 to 9 guidance is
given to achieve the desired high level of
quality.
2.3 No slope in horizontalpipes
In horizontal pipes, no slope is required
to transport the water to the downpipe
since the system operates at high
velocities due to the energy head, which
is equal to the height of the building.
A small slope is neither beneficial nor
disadvantageous for the operation of the
system. For ease of installation, we
recommend to use no slope in the
horizontal pipes. If a slope in the horizontal
pipe is desirable to improve emptying of
the system after a rainfall, Wavin advises
to keep the slope below 1:200.
2.4 No siphons in thesystem
A negative slope or an upward placed
bend into the flow direction will create
a siphon. In siphonic systems this is not
allowed since during the start-up of
the system air might be entrapped,
preventing a full-bore flow.
Figure 5. No negative slope.
Figure 6. No upward placed bends.
Installation manualGeneral installation instructions
2. General installation instructions
www.wavin.com
Wavin QuickStream PE3
2.5 No obstructions in thepipe system
All pipe ends should be checked and
freed from burrs. Burrs, dirt and other
obstructions might influence the proper
functioning of the system. Preferably,
electro-fusion couplers should be
applied. However, butt welds are also
allowed in the Wavin QuickStream
polyethylene pipe system.
Figure 7. Wrongly and properly cut pipe
ends.
2.6 Only use 45° bends and45° tees
Bends of 90° have a higher flow
resistance than two 45° bends. The
design of the system is based on using
two 45° bends instead of one 90° bend
unless specified differently. Installing 90°
bends is
consequently not allowed unless specified
by Wavin (see figure 8).
For the same reason only 45° Tees are
allowed instead of 90° Tees unless
specified by Wavin (see figure 9).
2.7 Use only eccentricreducers/increasers
Diameter changes in horizontal collecting
pipes must be made with eccentric
increasers. In order to accelerate the
evacuation of air, the topside of the
collector must remain on the same level
when an increaser in the flow direction
is installed.
Figure 8. Use only 45º bends, no 90º
bends.
Figure 9. Use only 45º Tees, no 90º Tees.
Figure 10. Use only eccentric increasers
in the flow direction with the
top side at the same level.
Reducers in the flow direction in horizontal
pipes are not allowed.
Installation manualGeneral installation instructions
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Installation of eccentric reducers and
or increasers in vertical pipes should be
positioned with the level side facing the
wall. This allows for ease of installation,
particular when fixing rails and clamps
are used. Furthermore, it is more effective
during priming of the system (see figure 11).
2.8 Only install explansionjoints where providedin the design
Once installed, the Wavin QuickStream
system is subjected to temperature
changes and dynamic loads. Any
oscillation or vibration, originating from
partly filled pipes, must be effectively
damped. Wherever possible it is strongly
recommended to make all joints tensile
resistant.
In some countries, it is common practice
to provide each 5-meter pipe-length in
the vertical downpipe with an expansion
joint, while in other countries no expansion
joints are used and fixing clamps are
directly installed to the wall. It is not good
practice to install an expansion joint in
horizontal collector pipes. In those cases
where expansion joints are applied,
appropriate fixing is required. Guidance is
given in paragraph 7.3.
Wavin does not in general advise the
practice of absorbing axial displacements
by expansion loops or flexible legs in a
Wavin QuickStream PE system, unless
provided in the design proposal.
2.9 Fix roof outlets andpipe system accordingto Wavin’s instructions
One of the key elements in a Wavin
QuickStream system is the roof outlet.
Detailed points of attention are presented
in chapter 5. Improper or incomplete
installation might cause condensation
and/or leakages. In most Wavin
QuickStream systems, long horizontal
pipes will be installed below the roof. For
this part of the installation please follow
Wavin’s installation recommendations
mentioned in chapter 7. Wavin has
developed special brackets for an easy
and secure installation of the horizontal
collector pipes.
Installation manualGeneral installation instructions
Figure 11. Install eccentric reducers in a vertical pipe with the level side facing the wall.
www.wavin.com
Wavin QuickStream PE5
2.10 Do not connect gravitypipelines to the WavinQuickStream system
Any open (gravity) connection to a Wavin
QuickStream system will allow the intake
of air and thus can severely impair the
siphonic function. Therefore, such
connections cannot be allowed in the
design. Also, attention should be paid on
not allowing extensions at a later date.
Extensions to the building will require its
own dedicated rainwater discharge
system.
2.11 Connect to a gravitysystem of sufficientcapacity
In order to prevent future flooding in case
the design rainfall actually takes place, the
installer should verify that the discharge
system, being either an open channel or
ventilated sewerage system, is capable of
discharging the design quantity. In case
the existing discharge system has a limited
capacity, contact should be sought with
the project manager or local authorities.
Guidance on maximum discharge
capacities is presented in Chapter 9.
2.12 Use prescribed pipematerials and pipeclasses
As Wavin QuickStream siphonic systems
are subjected to both under- and over
pressures, as well as axial loadings, only
Wavin’s recommended and quoted
pipework materials, fixing materials and
ancillaries should be used. In case of
deviations, advice must be sought from
Wavin’s technical team.
Installation manualGeneral installation instructions
Figure 12. Only use Wavin recommended and quoted pipework.
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3.1 PipesPlease take note of following points of
attention:
1. Prevent damage during handling and
storage.
2. Store and transport pipes in bundles
as supplied
3. Store and transport loose pipes well
supported by using at least 5 supports
for a standard 5 meter pipe length.
4. Do not unload pipe bundles by sliding
each pipe over its length as this might
damage pipe ends. For the same
reason do not drag pipes across the
ground or other surfaces.
5. Prevent point loads in either storage
or lifting.
6. Use wide lifting belts.
7. Prevent excessive bending by using a
cross beam in lifting.
8. Do not store loose pipes over 1
meter in height.
9. Prevent pipes being exposed to
aggressive substances and high
temperatures.
10. Cover pipes in case of expected
long storage times, but allow for
ventilation.
When the above points have been
observed, installation will be easier and
the quality of the system will be optimal.
Working with dirty, bent and damaged
pipes is time consuming and affects
quality negatively.
Figure 13. Storage of pipes.
3.2 Fittings and accessoiresKeep fittings clean by:
- unpacking just before use,
- storage inside buildings or containers.
Store rubber ring fittings always in a
cool place, free from direct sunlight
exposure.
Figure 14. Unpack fittings just before use.
Installation manualTransport, storage and handling
3. Transport, storage and handling
www.wavin.com
Wavin QuickStream PE7
4.1 General installationrecommendations
Until the Wavin QuickStream system is
required to deal with any water discharges,
it is recommended to close the roof outlets
on the roof. Otherwise, contamination of
various kinds could penetrate into the
pipe system. Once the installation of the
roofing materials has been completed
and the whole roof is cleared from loose
rubble, the plugs can be removed from
the roof outlets.
It is strictly prohibited to sweep dirt from
the roof into the roof outlets. Particular
caution must be applied to remove all the
cement waste. Once mixed with water
cement could set permanently in the
pipework, thereby severely reducing the
discharge capacity.
If it is suspected that the system has
become contaminated during the building
process, it is strongly recommended to
clean the system before completion.
4.2 Sequence of installationIn most cases the horizontal collector pipe
will be installed underneath the roof. In this
situation the following sequence is advised:
Installation of the emergency overflow
systems to prevent potential problems
of water on the roof and inside the
building.
Installation of the Wavin QuickStream
roof outlets in the roof construction at
the positions according to the design.
Follow the installation instructions as
supplied with each product.
Plug off the outlet to prevent
contamination of the system and
water entering the system during the
construction works.
Installation of the roofing material and
fixing the outlet in the roofing material.
Installation of the hanging rails and
brackets according to the design
(see chapter 7).
Installation of the horizontal collector
pipe and the roof outlet connecting
pipes and then the vertical pipework
top-down according to the supplied
drawings. Use fix point brackets
where indicated in the design.
Check the bracketing system for
fixing and/or sliding.
Install discharge points.
Check if discharge can take place
unhindered and with sufficient
capacity (see table in chapter 9).
Commission pipework by pressure
testing (see chapter 10).
Clean roof surface.
Un-plug Wavin QuickStream roof
outlets.
Dismantle temporary emergency
overflows.
Pipe sections located in either floor
and/or walls must be pressure tested
prior to the casting of concrete. In order
to prevent any ingress of mortar into the
system, these pipe sections must be
capped-off thoroughly. Open pipe ends
must be well protected against possible
damage by using PE caps.
Installation manualRecommended sequence of installation
4. Recommended sequence of installation
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5.1 General installationrecommendations forroof outlets
One of the key components in a siphonic
roof drainage system are the roof outlets.
The roof outlets should be located exactly
according to Wavin’s supplied Roof
Outlet Plan.
All roof outlets need to be placed at the
lowest points of the roof but at least 0.5
meters from the eaves. If the eave roof
level is lower than the level of the roof
outlets the roof surface between the roof
outlets and the eaves needs to be filled-up
to realise a slope of 0 to 3 degrees
toward the outlets. All low points of the
roof must have an outlet.
All Wavin QuickStream roof outlets have
air baffles to prevent air entrainment into
the pipe system. Any removal of baffles
or cleaning caps will reduce the drainage
capacity tremendously.
In case insulation is required, either
existing insulation of the roof can be used
or special insulation blocks that can be
sourced from Wavin.
In specific climatic situations, it may be
required to install additional de-icing
heating on the roof outlet (see paragraph
5.6)
In all cases, movement and vibrations
must be prevented from being transferred
to the tail pipes of the roof outlets by
effective fixing. Guidance is given in
chapter 7.
Each delivery of roof outlets is provided
with detailed installation instructions
related to type and size. Below the most
important general steps are noted.
Check the correct position of the flat
sealing ring at the end of the screw
thread of the roof outlet connector.
Screw the roof outlet connector to
the threaded outlet. Firmly tightening
by hand will be sufficient to achieve
a watertight connection. In case
de-icing heating is required, place the
heating element prior to screwing on
the roof outlet connector. The Wavin
QSPE 75 roof outlet has a 75 mm
outlet pipe so no additional roof outlet
connector is required.
Cut a piece from the insulation where
the roof outlet will be positioned (note:
size of insulation blocks might differ!).
Use the insulation block as a gauge.
Place the insulation block in the free
space made in the roof insulation.
The insulation block may be positioned
about 10 mm lower than the
surrounding insulation but in any case
not higher. If required some insulation
material may be added below the
insulation block to achieve the right
height.
Dismantle the top part (clamping
ring / leaf separator) and store all
dismantled parts properly for later
reassembly.
Install the roof outlet.
Clamping type roof outlet
If required, the roof outlet can be
fixed into the roof by using 4 screws
or nails. The sealing with the roof
membrane is achieved by pressing
the membrane between the clamping
ring and the sump pan. Carefully
check on correct positioning of the
sealing rings (if present) and the
absence of dirt in the sealing area.
If a joint of two roof membranes is
located at the position of the roof
outlet, a square piece of roof
membrane of size 0.6 to 1 m should
first be clamped into the outlet. At the
location of the outlet a piece of the
roof membrane smaller than the
square fixed into the roof outlet needs
to be cut out. Finally the roof
membrane fixed in the outlet can be
fixed to the roof membrane positioned
on the roof.
Bitumen type roof outlet
Place the roof outlet on the bitumen
sub-layer if present. If required, the
roof outlet can be fixed to the roof by
using 4 screws or nails. Degrease
the stainless steel parts using an
appropriate solvent. Heat weld the
bitumen top layer to the stainless
steel plate of the roof outlet. Take
care to use sufficient heat to establish
a bond between the top layer and the
sub layer via the holes in the plate of
the roof outlet.
Installation manualInstallation of the roof outlets
5. Installation of the roof outlets
Figure 15. Location of the roof outlet at least 0.5 m from the eaves (0-3 degrees slope).
www.wavin.com
Wavin QuickStream PE9
Gutter type roof outlet
The gutter type of roof outlet will be
fixed to the metal gutter by use of a
backing flange and bolts.
Sealing is performed by rubber
gaskets, on both surfaces of the gutter
compressed between the backing
flange and the outlet part.
The gutter version roof outlet with
metal sheets can be directly welded
to the gutter material.
Place the plastic cap provided with
the outlet firmly in the outlet to prevent
dirt entering the system during further
construction works.
Make the connection to the horizontal
collector pipe according to the design.
Clean the whole roof properly prior to
commissioning of the system.
Remove the caps from each roof
outlet and reassemble the top part.
Nuts or screws should be tightened
hand-tight. Nuts should be
subsequently tightened with a torque
spanner, set on 5 to 10 Nm.
Figure 16. Wavin emergency overflow
ring to convert a standard
outlet into an emergency
overflow outlet.
5.2 Installation of roof outletsof an emergencyoverflow system
When a Wavin QuickStream siphonic
system has been designed for an
emergency overflow system the following
installation rules should be considered.
A standard Wavin QuickStream roof
outlet can be installed at the required
higher level by using, for example, an
insulation block or a ring of the
required height placed around the
outlet. Wavin has special plastic rings
for its QSMP 75 and QSPE 75 outlet,
which are easy to cut at the correct
height by using the guidelines on the
outside of the ring (see figure 16).
The emergency overflow outlet
should preferably not be located at
the lowest roof level, in order to avoid
pollution and to secure a free flow of
water between the roof outlets of the
standard Wavin QuickStream rainwater
system.
The designer of the roof or the building
designer should supply the height of
the inflow of the emergency overflow
system. Wavin will supply the minimum
level of the emergency overflow system
when located next to the Wavin
QuickStream roof outlets to secure a
proper functioning of the Wavin
QuickStream system. Usually the
height is approx. 30 to 55 mm higher
than the roof outlets of the standard
rainwater system.
The discharge of the emergency
overflow pipe system should be
above ground level at a visible location.
Installation manualInstallation of the roof outlets
Figure 17. Figure roof outlet in slope of the roof and placed at an insulation block.
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5.3 Types of roof outletsWavin QuickStream roof outlets are
available in different materials.
Additionally there are three different
constructions for sealing to different
roofing materials and gutters.
Type 1: Clamping type
Compressing the roofing membrane
between two flanges performs the
sealing. This outlet type can be directly
installed on the most common roofing
membranes such as PVC, EPDM and
bitumen.
Type 2: Bitumen type
This type is supplied with a stainless
steel flange on which the bitumen roofing
membrane can be heat welded directly.
Type 3: Gutter type
These outlets are designed for installation
in metal gutters. Sealing is performed by
EPDM rubber gaskets, on both surfaces
of the gutter compressed between the
backing flange and the outlet part.
Upon request, a gutter type outlet can be
supplied with a contact sheet of the
same metal as the gutter, so that the
outlet can be welded / soldered into the
gutter.
A wide range of accessories is available
for specific situations like:
Foamed polystyrene insulation blocks
Moisture barriers
De-icing electric heating elements
Straight threaded roof outlet
connectors and 90 degree bended
connectors.
Detailed assembling instructions are
supplied with each Wavin QuickStream
outlet.
Installation manualInstallation of the roof outlets
Table 1. Overview of Wavin QuickStream roof outlets: A = Available.
Diameter rangeRoof outlet type vertical tail pipe
Product Outlet Outlet Clamp Bitumen Guttercode materials connection version version version Min. OD Max. OD
Siluminium /
QS 75 stainless 21/2” A A A 40 mm 90 mm
steel
Plastic /
QSMP 75 stainless 21/2” A A A 40 mm 90 mm
steel
QSPE 75 Plastics / PE PE 75 mm A A A 40 mm 90 mm
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Wavin QuickStream PE11
5.3.1 Wavin QSPE 75,Plastic roof outlet –clamp version
The Wavin QuickStream universal plastic
roof outlet QSPE 75 has a bottom part
made from PE, enabling direct welding to
the PE-pipe system using an electrofusion
socket. This outlet has an inspection cap
with a bayonet catch to enable a quick
and easy inspection of the pipe system.
The integrated clamp flange makes it
possible to fasten various types of roofing
membranes to the outlet.
The outlet is always supplied including an
insulation block. For roofs that require a
damp or moisture barrier, a version
including a moisture barrier can be
supplied.
Installation manualInstallation of the roof outlets
Figure 19. Installation example Wavin QSPE 75 clamp version.
Figure 18. Wavin QSPE 75.
The Wavin QuickStream universal plastic
roof outlet QSPE 75 consists of the
following components:
1. Inspection Cap
2. Top Part
3. Clamping ring and Leaf separator
4. Rubber Seal
5. Sump pan and outlet (PE)
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Installation manualInstallation of the roof outlets
5.3.2 Wavin QSPE 75,Plastic roof outlet –gutter / bitumenversion
The Wavin QuickStream QSPE75 roof
outlet used for a heat bonded installation
on bitumen roofs and installation in metal
gutters is supplied with a special metal
contact sheet. This contact sheet is
clamped between the bottom part and
clamping ring.
The roof outlet consists of the following
components:
1. Inspection Cap
2. Top Part
3. Clamping ring and Leaf separator
4. Metal contact sheet
5. Rubber Seal
6. Sump pan and outlet (PE)
When installing the outlet in a metal gutter,
the metal sheet should be made of the
same metal as the gutter, so that the
outlet can be welded / soldered into the
gutter and electrolytic or bi-metal corrosion
can be avoided. Figure 20. Wavin QSPE 75 with metal sheet.
Figure 21. Installation example Wavin QSPE 75 in a gutter.
www.wavin.com
Wavin QuickStream PE13
Installation manualInstallation of the roof outlets
For heat-welded bonding with a bitumen
roof membrane, a stainless steel contact
sheet will be used. The bitumen top layer
should be cut out and heat welded up to
approx. 100 mm from the outside of the
outlet. During the heat welding, the top
parts of the outlet need to be dismantled
and stored properly.
Figure 22. Installation example Wavin QSPE 75 with a stainless steel contact sheet on a bitumen roof.
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5.3.3 Wavin QS 75,Metal roof outlet –clamp version
The Wavin QuickStream QS75 clamp
version roof outlet consists of the
following components:
1. Leaf guard / air baffle (epoxy coated
siluminium)
2. Clamping ring (stainless steel)
3. Sump pan/outlet flange (stainless
steel)
4. Roof outlet connector with sealing ring
(supplied in a separate packaging)
Installation manualInstallation of the roof outlets
Figure 24. Installation example Wavin QS 75 clamp version for PVC, EPDM or bitumen
roof membranes.
Figure 23. Wavin QS 75 clamp version.
www.wavin.com
Wavin QuickStream PE15
Installation manualInstallation of the roof outlets
5.3.4 Wavin QS 75,Metal roof outlet –bitumen version
The Wavin QuickStream QS75 bitumen
version roof outlet consists of the
following components:
1. Leaf guard / air baffle (epoxy coated
siluminium)
2. Sump pan/outlet flange (stainless
steel)
3. Roof outlet connector with sealing ring
(supplied in a separate packaging)
Figure 26. Installation example Wavin QS 75 bitumen version.
Figure 25. Wavin QS 75 bitumen version.
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5.3.5 Wavin QS 75,Metal roof outlet –gutter version
The Wavin QuickStream QS75 gutter
version roof outlet consists of the following
components:
1. Leaf guard / air baffle (epoxy coated
siluminium)
2. Sump pan/outlet flange (stainless steel)
3. EPDM gaskets & aluminium backing
flange
4. Roof outlet connector with sealing ring
(supplied in a separate packaging)
Installation manualInstallation of the roof outlets
Figure 28. Installation example Wavin QS 75 gutter version with backing flange and EPDM gaskets.
If possible deform the gutter around the outlet downwards by 3 to 4 mm.
Figure 27. Wavin QS 75 gutter version.
www.wavin.com
Wavin QuickStream PE17
Installation manualInstallation of the roof outlets
5.3.6 Wavin QSMP 75,Metal-plastic roofoutlet - clamp /bitumen version
The Wavin QuickStream QSMP 75 clamp
/ bitumen version roof outlet can be used
to clamp PVC, EPDM or bitumen roof
membranes or for heat welding bitumen
roof membranes directly to the stainless
steel bottom part. This roof outlet
consists of the following components:
1. Inspection cap
2. Top part
3. Clamping ring and Leaf separator
4. Rubber seal
5. Sump pan
6. Roof outlet connector with sealing ring
(supplied in a separate packaging)
Figure 30. Installation example Wavin QSMP 75 clamp version for PVC, EPDM or
bitumen roof membranes.
Figure 29. Wavin QSMP 75 clamp / bitumen version.
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When the bitumen roof membrane is
directly heat welded to the Wavin QSMP
75, no rubber gasket should be installed
between the bottom part of the outlet and
the bitumen roof foil.
Installation manual????????
Installation manualInstallation of the roof outlets
Figure 31. Installation example Wavin QSMP 75 heat welded bitumen roof foil.
www.wavin.com
Wavin QuickStream PE19
5.3.7 Wavin QSMP 75,Metal-plastic roofoutlet - gutter version
The Wavin QuickStream QSMP 75 gutter
version roof outlet is supplied with a
backing flange and two EPDM rubber
gaskets. It consists of the following
components:
1. Inspection cap
2. Top part
3. Clamping ring and Leaf separator
4. Sump pan
5. EPDM gaskets & stainless steel
backing flange
6. Roof outlet connector with sealing ring
(supplied in a separate packaging)
Installation manualInstallation of the roof outlets
Figure 33. Installation example Wavin QSMP 75 gutter version with backing flange and EPDM gaskets. If possible, deform the gutter
around the outlet downwards by 3 to 4 mm.
Figure 32. Wavin QSMP 75 gutter version
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5.4 Moisture barriersOn request, Wavin can supply moisture
barrier flanges that will secure a vapour
tight seal between the tail pipe and the foil
in the roof, which is used as a moisture
barrier. A rubber ring will secure the
vapour tight seal with the tail pipe while
the foil will be clamped between the
flange parts.
Figure 34 and 35. Moisture barriers.
5.5 Wavin QuickStreamoutlets on green roofsand parking decks
Wavin has developed special perforated
shafts DN 315 wrapped with geotextile
that can be placed around standard
(QuickStream) roof outlets. The shaft can
be easily cut to the required height with a
minimum height of 200 mm. The cover
should be positioned not higher than the
adjacent surface. Depending on the load
situation, various covers with gratings can
be supplied. The maximum load on the
shaft should not exceed 15000 N. Prior
to installation, the installer needs to check
whether the roof construction and the
roof foil can withstand the loads to be
transferred to these parts of the roof
construction. For parking decks a similar
construction can be supplied. Please
consult Wavin for further details.
5.6 De-icing electricalheating elements
Wavin QuickStream roof outlets can be
provided with an automatic electric heating
system. A heating system prevents
blockage of the outlet in case of ice-rain,
freezing melt water or snow.
A built in temperature probe will
automatically switch-on the heating plate
when ambient temperature drops below
+ 4 °C.
The heating element (see figure 37) is
placed between the external surface of
the sump pan and the thermal insulation
pack. See also chapter 8.3; “Thermal
insulation”.
Each heating element consumes 3 Watt
in stand-by mode and takes 18 Watt
when heating. Voltage is single phase
230 VAC.
Figure 37. Heating element.
Installation manualInstallation of the roof outlets
Figure 36. Shaft and cover for installation on a green roof.
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Wavin QuickStream PE21
6.1 Cutting polyethylenepipes
Best practice in cutting PE pipes is to use
a rotary pipe cutter designed for plastic
pipes. In case a saw is used, ensure that
the cut is square to the pipe axis. This
can easily be achieved by using a pipe
clamp as sawing guide. Always remove
burrs and flashes!
6.2 Principles of heatfusing polyethylenepipes and fittings
The Wavin QuickStream range contains
pipes, spigot fittings and electrofusion
sockets. Pipes and fittings (both electro
fusion couplers and spigot fittings) are
provided with external marking ribs or
marking stripes enabling easy alignment
particularly in pre-fabrication.
Note: polyethylene pipes and fittings
cannot be joined using solvent cement!
For correct heat fusion of polyethylene,
following basic requirements must be met
in order to obtain good quality joints.
1. Sufficient heat
2. Sufficient pressure
3. Sufficient welding & cooling time
4. “Clean to clean” material
In the two most common applied welding
techniques, electrofusion and butt-welding,
these parameters are dependent on the
design of the electrofusion socket and/or
in the welding procedure.
6.3 Butt-weldingButt-welding is a very economical jointing
technique. Correctly made butt-welds
reach the strength of the pipe. Well-trained
personnel are recommended for making
butt-welds.
In butt welding, two pipe ends, two fitting
ends or a pipe end and a fitting end are
bonded by melting the circular pipe faces
simultaneous and pressing these together.
Butt-welding can only be performed using
a butt-welding machine.
The butt-welding procedure
incorporates the following 15 steps:
1. Check environmental conditions.
When the outside temperature is below
5 ºC and/or during rainy and windy
conditions, special precautionary
measure have to be taken to ensure
dry and sufficiently warm welding
conditions.
2. Check welding machine is in good
functional order.
At least the following issues should
be checked: temperature, alignment,
play of the moving parts, smooth
movement of the moving parts,
electrical connections, cutting
machining plane (sharpness).
Figure 38.
3. Clean heater plate with PE cleaner
and a soft cloth.
Prevent any damage of the Teflon
coating.
Figure 39.
4. Check temperature heater plate
on 210 ºC.
Figure 40.
5. Cut pipe to required length.
Note: take into account that in the
welding process a few millimetres
pipe will be consumed. Best practice
is to use a rotary pipe cutter. The pipe
ends are then square and free from
burrs. If a saw is used, it is advised to
use a spare clamp as a sawing guide.
Such cut pipe ends must be de-burred
before placing in the welding machine.
Figure 41.
6. Clamp both pipe-ends in the
welding machine and ensure
correct alignment.
Eliminate any bending forces if present.
Figure 42.
Installation manualJointing the pipe system
6. Jointing the pipe system
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Installation manualJointing the pipe system
7. Trim both pipe-ends using the
planer.
Keep planer running while slowly
reducing pressure. Do not stop
planer when still in contact with pipe
ends in order to prevent uneven
surfaces.
Figure 43.
8. Check that pipe ends are matching.
If not correct either re-clamp pipes
(alignment) and/or repeat trimming.
After re-clamping it is necessary to
trim the pipe-end again with a planer.
Figure 44.
9. Insert heater plate and press both
pipe ends during a few seconds
with a higher force on the plate for
ensuring full contact.
Figure 45.
10. Reduce force until nearly zero,
assuring contact with heater plate
so that heat is soaked into both
pipe ends.
11. Maintain heat soaking till a bead is
formed of approximate 1 mm for
diameters 40 up to 200 and 1.5mm
for diameters 250 and 315mm.
Use the figures mentioned in table 2
as guidance for the heat soaking
duration.
12. After heating time is elapsed,
quickly open the welding machine,
remove the heater plate and close
immediately.
This part of the welding operation
must be kept as short as possible in
order not to loose too much heat!
Figure 46.
13. Slowly apply welding force and
maintain for required cooling time
according to table 2a.
14. Inspect weld bead for evenness.
Uneven weld beads indicate incorrect
alignment or out of roundness. Large
weld beads could be caused by either
too high a heater temperature and/or
too high a welding force. A small
weld bead could be caused by a too
low a heater temperature and/or too
low a welding force. In both cases
the weld should be rejected due to
reduced strength.
Figure 47.
15. Remove welded joint from the
welding machine after cooling time
is elapsed.
The joint need to be kept free from
any loads within 5 minutes after the
cooling time is elepsed.
If the above steps are followed correctly,
the above mentioned four basic
requirements should be fully met.
Diameter 40 50-110 125 160 200 250 315
Time [s] 30 40 60 80 100 140 170
Table 2. Guidance of the heat soaking duration (in seconds) for butt-welding.
Diameter 40-75 90 110 125 160 200 250 315
Time [s] 60 70 80 100 120 200 280 340
Table 2a. Guidance of the minimum cooling time (in seconds) for butt-welding at 20º C.
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Wavin QuickStream PE23
Installation manualJointing the pipe system
6.4 Electrofusion weldingElectrofusion sockets are provided with
an electric resistance wiring embedded in
the internal surface. When connected to
an electric power source, heat is supplied
directly in the fusion zones. During the
melting of polyethylene, its volume
increases. This expansion creates the
necessary welding pressure. The Wavin
welding equipment automatically doses the
exact required energy for making a good
joint. There are two welding machines:
one for the sizes 40-160 and one for the
dimensions 200, 250 and 315 mm.
In order to meet the four basic
requirements for making a sound
joint, special attention should be paid
on the following 12 points:
1. Check environmental conditions.
When the outside temperature is
below 5 ºC and/or during rainy and
windy conditions special precautionary
measure have to be taken to secure
dry and sufficient warm welding
conditions.
2. Secure proper power conditions.
Check the stability and the height of
the voltage especially when using a
generator or using long cables.
When the voltage is not stable,
connecting for example a
construction lamp to the generator
might solve the stabilisation problem.
3. Only use correct Wavin welding
equipment.
Figure 48. WaviDuo electrofusion
equipment.
4. Always cut pipe-ends square!
If this is not the case, melt cannot be
kept encapsulated between pipe end
and socket, resulting in a loss of
melt-pressure! Best practice is to use
a rotary pipe cutter (see photo). The
pipe ends are then square and free
from burrs. If a saw is used, it is
advised to use a spare clamp as a
sawing guide. Such cut pipe ends
must be de-burred before inserting
the pipe end in the electrofusion
socket.
Figure 49. Preferably use a pipe clamp.
5. Clean and de-burr pipe ends
Figure 50. De-burr pipes when a saw is
used.
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6. Chafe pipe ends over its insertion
depth using a clean emery cloth
(-lint) of a roughness 40 or lower or
a dedicated PE pipe scraper.
Figure 51. Chafe pipe end with emery lint
of roughness 40 or lower.
Figure 52. Clean pipe end with
PE cleaner.
Figure 53. Scrape pipe end with hand
scraper.
Installation manual????????
7. Always insert pipe ends till the
internal register in the socket, so
that full insertion is reached.
Mark the insertion depth on the pipe
ends so that any slippage can be
detected in time. In case the internal
register (pipe stops) have been cut
away so that the electrofusion socket
can be used as a sliding socket,
correct marking of the insertion depth
is essential. Improperly inserted pipe
ends also lead to a loss of melt
pressure.
Figure 54. Mark insertion depth.
8. Clean internal socket surfaces
with a clean cloth and Wavin PE
cleaner.
Ensure proper drying of cleaner
before assembling joint.
Figure 55. Clean internal socket with PE
cleaner.
9. In case pipe ends are too oval,
re-rounding is required by using a
temporary pipe clamp, fixed close
to the socket.
This temporary clamp can be
removed after elapsed cooling time.
Figure 56. Install a temporary pipe clamp
for re-rounding close to the
socket.
10. Always prevent any loading or
bending on a joint during welding
and subsequently cooling.
Ensure that installed pipe sections are
properly fixed before starting to make
the electrofusion joints.
Figure 57. Proper fixing before welding.
In case the jointing procedure is
interrupted, first correct the cause of
the interruption, then allow the joint to
cool completely before re-welding.
11. Inspect welded joint for correct
alignment, insertion depths and
weld indicators.
The weld indicators indicate that the
joint has been energized; they are not
linked to weld quality, as quality is
only reached by following above
steps and requirements.
Figure 58. Inspect insertion depth and
weld indicators.
12. Demount temporary pipe clamp
(if used).
Figure 59. Demount temporary pipe
clamp.
Specific points of attention in
electrofusion operation:
1. Pipe ends must be cut square.
2. Pipe ends must be chafed properly.
3. Pipe ends, electrofusion sockets and
welding equipment must have same
ambient temperature before starting
welding (if not, energy might be too
high or too low).
4. Joint must not be subjected to
axial- and bending loadings during
welding and cooling.
5. Pipes and fittings need to be
completely dry.
Installation manualJointing the pipe system
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Wavin QuickStream PE25
Installation manualJointing the pipe system
Pipe diameter
≤ 50 63 75 90 110 125 160 200 250 315Ambient temperature Insertion depth in [mm] for pipe length of 6 meter
- 10° C 65 70 70 80 85 90 100 140 140 140
0° C 75 80 80 90 95 100 110 150 150 150
+ 10° C 85 90 90 100 105 110 120 160 160 160
+ 20° C 95 100 100 110 115 120 130 170 170 170
+ 30° C 105 110 110 120 125 130 140 180 180 180
Table 3. Insertion depth of pipes into an expansion socket, max. pipe length 6 meter.
4. Apply silicone oil on rubber seal
and sparsely on spigot end.
Figure 63.
Figure 64.
5. Install pipe and fix with a
fixed-point bracket on the socket
side and sliding brackets over the
rest of the pipe length.
Figure 65.
6. Check depth of insertion.
For a good functioning of the expansion
joints, follow these instructions:
1. Prepare positions of fix- and
sliding brackets.
Expansion sockets must always be
configured as a fixed-point. That
means that all other fixing points
must be sliding brackets
(see figure 87).
2. Chamfer pipe end.
Chamfer angle should be
approximately 15° and chamfering
length should be minimum 4 mm.
Figure 61.
3. Mark insertion depth.
Use the insertion depth for the
ambient temperature during
installation according to the values
mentioned in table 3.
Figure 62.
6.5 Installation ofexpansion joints
Expansion joints are push-fit sockets with
a rubber seal.
Expansion and contraction in the pipe
system is absorbed by axial displacements
in the sockets. Normally expansion joints
are mostly located in the vertical
downpipes. In special circumstances, if
no other options remain to absorb
thermally induced displacements,
expansion joints can be positioned in
horizontal collector pipes.
Figure 60. Installation of an expansion joint.
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7.1 Fixing the horizontalcollector pipe
A controlled absorption of thermal axial
pipe stresses in rigid suspension systems
by making use of galvanised steel rails is
most commonly applied in PE siphonic
rainwater discharge systems.
The benefits are ease of installation and
no unexpected displacements. The
thermally induced axial loads are
completely absorbed by the suspension
and bracketing system. Once the
suspension rails have been installed, pipe
segments can then easily be placed in
the brackets. In-lays can be placed in the
brackets to create a strong and cost
effective fix of the pipework against axial
displacement.
All Wavin QuickStream brackets are
designed to enable fast and easy placing
of pipe segments and additional closing
of the brackets. See picture 68-82.
Installation of the steel railsThe Wavin QuickStream system
compromises three types of suspension
rails:
1. Wavin QuickStream rail 30 x 30 mm
for pipes 40 – 160 mm
2. Wavin QuickStream rail 30 x 45 mm
for pipe 200 – 250 mm
3. Wavin QuickStream rail 41 x 62 mm
for pipe diameter 315 mm
Special attention needs to be paid to
the following 5 points:
1. Wavin rail connectors.
The suspension rails must be mutually
connected with the specific Wavin
QuickStream rail connectors that can
transfer thermally induced axial loads
from one rail to the next one. The rail
connector for the rail 30 x 45 mm can
also be used for connecting a 30 x 30
mm rail to a 30 x 45 mm rail.
It is not possible to make a connection
between a 30 x 45 mm rail and a 41 x 62
mm rail, or between a 30 x 30 mm rail
and a 41 x 62 mm rail. In cases where it
is not possible to use a rail connector,
then the extreme brackets on each rail
must be of the fixed type. This is only the
case at bends and at a diameter change
between 315 mm and 250 mm pipe size.
2. Install the bottom side of all types
of rail on the same level.
The bottom side of the different types of
rail always needs to be installed on the
same level. Special attention to the height
of the rail needs to be paid when
installation of the rail is started at the
upstream side of the horizontal collector
pipe and when the pipe size at the
downstream side of the horizontal
collector pipe is larger than 160 mm. In
this situation, the 30 x 30 rail needs to be
installed 15 or 30 mm lower to allow a
bottom level connection to a 30 x 45 or a
41 x 62 mm rail. When the rail is fixed at
the top side to e.g. steel beams, a 30 x
15 or a 30 x 30 rail can be fixed between
the 30 x 30 rail and the steel beam to
adjust the height of the 30 x 30 rail to the
height of the 30 x 45 or 41 x 62 mm rail.
3. Maximum intermediate distances
of the suspension elements.
All Wavin QuickStream rail types 30 x 30,
30 x 45 and 41 x 62 should be suspen-
ded to the roof construction at a maxi-
mum distance of 2 meters between the
suspension elements, taking into account
the weight of a fully filled pipe, the weight
of the suspension rail and the load ability
of the roof construction.
4. Anchoring of the steel rails.
All rails can be suspended relatively easily
using threaded rods to the roof. The
length of the threaded rods is of no
importance as these only bear the
weight of the pipe, pipe clamps and rail
construction. Wavin recommends
anchoring the steel rails to the roof every
12 meters and at every change of
direction. The anchors need to be fixed
to the wall structure or alternatively
installed lateral to the rails and approx.
45º to the roof.
5. Check weight limitations, which
can be suspended to the (roof)
construction.
Care should be taken that the roof
constructions have sufficient strength to
bear the whole piping construction. The
total weight per meter of a fully filled pipe
and the suspension system can be taken
from table 4.
When the rail system is suspended every
2.5 meters, the design strength of each
suspension point to the roof should be at
least 2.5 times the total weight/m
according to table 4. The weight of
insulation blankets can be found in
chapter 8.4.
Installation manual????????
Installation manualFixing the Wavin QuickStream PE system
7. Fixing the Wavin QuickStream PE system
Pipe diameter [mm] 40 50 56 63 75 90 110 125 160 200 250 315
Weight/m [kg/m] 3.4 4.2 4.7 5.4 6.7 8.8 12.1 15.0 23.3 35.8 54.6 86.9
Table 4. Weight of the pipe including suspension and 100% filled with water.
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Wavin QuickStream PE27
Installation manualFixing the Wavin QuickStream PE system
Installation of the bracketsTo avoid potential sagging of the pipes,
the horizontal maximum supporting /
bracketing distances from table 5 should
be applied in a Wavin QuickStream PE
pipe system.
The photos below show the installation
of the rail suspension element, the rail
connector and a fixed-point bracket.
1. Install suspension element and fix
the rail.
Install the suspension element at the right
height using a M10 threaded rod.
Figure 66.
Fix the rail into the suspension element
and fasten the two screws.
Figure 67.
2. Installation of the rail connector.
Insert the rail connector approx. half way
into the rail.
Figure 68.
Fix the next rail to the rail connector and
fasten the 4 screws (it is not required to
place the rails against the previous one).
Figure 69.
3. Fix the bracket to the rail.
Click the bracket at the right location on
the rail (see table bracketing distance).
Figure 70.
Fix the bracket to the rail by clicking the
front part into the rail and fasten the screw.
Figure 71.
4. Click fixed-point inlay in the bracket
and insert the pipe.
Click one stainless steel inlay into the back
part of the bracket
Figure 72.
Click the PE pipe into bracket. The pipe
will not fall out.
Figure 73.
5. Close bracket and fasten the screw.
Click the front part of the bracket into the
hook and fasten the screw.
Figure 74.
Installation completed.
Figure 75.
PE pipe diameter [mm] 40-75 90 110 125 160 200-315
Maximum bracketing0.8 0.9 1.1 1.25 1.6 2.0
distance [m]
Table 5. Maximum horizontal bracketing distances in meters.
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The photos below show the installation of
the sliding bracket.
1. Click the sliding bracket on the rail
and put in the pipe.
Click the sliding bracket at the right
location on the rail (see table bracketing
distances).
Figure 78.
Click the PE pipe into the bracket.
The PE pipe will not fall out.
Figure 79.
2. Fasten the screws.
Click the front part of the bracket into the
hook and fasten the bottom screw.
Figure 80.
Fasten the upper screw.
Figure 81.
3. Installation completed.
Figure 82.
Location of the fixed-points
As a minimum, a fixed-point bracket
must be placed on the largest side of
every increaser / reducer. If a Tee piece
is located at an increaser, then the
fixed-point brackets can be situated
directly next to the Tee piece.
Fixed-point brackets should also be
installed directly before and after a change
in direction, e.g. at a bend and at each
interruption of the rails. The maximum
distance between two fixed-point brackets
may not exceed 10 meters. The fixed
points need to be located within a maxi-
mum distance of 0.3 meters from a sus-
pesion element.
Figure 76.
Location of fixed-point brackets just
before and after a bend (top view).
Installation manualFixing the Wavin QuickStream PE system
Figure 83. Location of fixed-point brackets in the horizontal collector pipe.
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Wavin QuickStream PE29
Figure 77. Fixed point within 0.3 meters
from a suspension element.
Installation manualFixing the Wavin QuickStream PE system
Figure 85. Install horizontal support brackets if the horizontal distance between roof
outlet and collector pipe is 0.8 to 1.2 meters.
Figure 84. No horizontal support brackets if the horizontal tail pipe <0.8 meters.
No vertical brackets if the vertical tail pipe < 1.2 meters
7.2 Fixing the roof outletconnecting pipe
To prevent the roof outlet being pushed
out of the roof due to thermal expansion
of the tail pipe, the first bracket should be
positioned no less than 0.5 meters from
the outlet. Under no circumstances
should sagging be allowed in the
horizontal part of the tail pipe. The
maximum vertical pipe length directly
below the roof outlet is 1.2 meters.
Also in this pipe section, no bracket is
allowed. The vertical tail pipe needs to be
installed without tensions. Under no
circumstances, bending of this part is
allowed.
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7.3 Fixing the verticaldownpipe
Rigid fixing of the vertical downpipe
The vertical downpipes can be fixed by
the use of Wavin QuickStream rails in a
similar way as with the horizontal collector
pipes. Most commonly however, the
pipework can be installed directly on the
wall structure so that for this part of the
system the suspension rails can be
omitted. This is why it is standard in the
quotation to include fixed-point brackets
enabling a fix to a wall instead of using
rails. A fixed-point needs to be positioned
at the top end of the vertical downpipe,
as close as possible to the elbows.
Furthermore, fixed-points also need to be
installed at a maximum spacing of every
10 meters. Be aware of expansion and
contractions loads transferred to the wall
structure. In table 6 guidance is given for
the thickness of the threaded metal pipe
for the fixed-points in relation to the
distance to the wall and Wavin
QuickStream pipe diameter.
Figure 86. Ridid fixing of the vertical
downpipe.
Installation manualFixing the Wavin QuickStream PE System
Distance pipe Pipe diameter [mm]to wall
[mm] ≤ 90 110 125 160 200 250 315
50 1/2” 1/2” 1/2” - - - -
100 1/2” 1/2” 1” 1” 1” 1” 1”
Table 6. Minimum diameter of the threaded metal pipes for the fixed-points.
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Wavin QuickStream PE31
Table 7. Maximum bracketing distance (in meters) for the vertical downpipe.
PE Pipe diameter [mm] 40 50 56 63 75 90 110 125 160 200 250 315
Maximum bracketing0.9 0.9 0.9 0.9 1.2 1.4 1.7 1.9 2.4 3.0 3.0 3.0distance [m]
Bracketing distance in the vertical
downpipe
For vertical installed pipes following
maximum bracketing distances must be
applied.
Installation manualFixing the Wavin QuickStream PE system
Flexible fixing of the vertical
downpipe
Most commonly in the vertical downpipes
expansion sockets are used. As there will
be always some friction in the sealing
system of an expansion joint, it is absolute
required to anchor the expansion socket
(see figure 87). At the top of a vertical
downpipe, always a fixed-point bracket
should be installed. All other brackets
should be “sliding brackets”.
Fixed-points can either be created by
placing an electrofusion socket
underneath the bracket fixing the
expansion socket (see figure 87) or by use
of a stainless steel insert in the bracket.
FIgure 87. Fixing of expansion sockets.
Figure 88. Location of fixed-points in the vertical downpipe.
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Distance pipe Pipe diameter [mm]
to wall
[mm] ≤ 90 110 125 160 200 250 315
50 1/2” 1/2” 1/2” 1/2” - - -
100 1/2” 1/2” 1/2” 1” 1” 1” 1”
Table 8. Minimum diameter of the threaded metal pipes for fixed-points when using expansion sockets.
Table 9. Maximum bracketing distance (in meters) for the vertical downpipe.
PE Pipe diameter [mm] 40 50 56 63 75 90 110 125 160 200 250 315
Maximum bracketing0.9 0.9 0.9 0.9 1.2 1.4 1.7 1.9 2.4 3.0 3.0 3.0distance [m]
Bracketing distance in the vertical
downpipe
For vertical installed pipes following
maximum bracketing distances must be
applied.
In order to prevent buoyancy during
concrete casting, the pipework must
be positioned and fixed properly.
Pipework, especially in vertical walls,
can be subjected to high external
pressures during concrete casting and
curing. It is strongly recommended to
fill these pipes with water in order to
prevent collapse and/or local buoyancy.
To avoid buckling of the class SDR
26 Wavin QuickStream PE pipes, the
maximum concrete height above the
pipe should not exceed 3.2 meters.
When the pipe is filled with water
equal to the concrete casting level,
the maximum concrete height can be
increased to 5.3 meters. These
maximum concrete heights are used
in case the concrete is not heated up
to enable a faster curing.
8.2 Fire protectionIn case local safety regulations or project
design specifications require measures to
prevent fires spreading to adjacent rooms
or floors fire collars must be installed.
Wavin offers a comprehensive range of
fire collars that meet local regulations.
The functioning of these fire collars is that
in the case of direct heat the material in
the fire collar will expand and will
completely close the floor or wall passage.
For more information, please contact
Wavin.
Installation manual????????
Installation manualSpecial constructions
8. Special constructions
Figure 91. Installation of fire collars
through ceilings.
Figure 92. Installation of fire collars
through walls.
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Wavin QuickStream PE33
8.1 Pipe systemsembedded in concrete
Pipe sections embedded in concrete
must be adequately fixed against thermal
movements.
This can be achieved by welding into the
pipe segment electrofusion sockets or
“puddle flanges”. Fixing is also achieved
when a branch or elbow is present in the
embedded pipe segment. However if a
branch is of a smaller diameter than the
main pipe, additional fixing must be
installed in the main pipe close to the
branch connection (see figure 89 and 90).
Figure 89. Fixing in concrete by using an
electrofusion socket.
Figure 90. Fixing in concrete by using a
puddle flange.
Please pay attention to the below issues:
Prior to concrete casting, the pipe
section must be tested for leak
tightness.
Pipework crossing a wall through a
protection sleeve cannot be seen as
a fixed-point.
As all thermally induced pipe stresses
have to be resisted by the concrete
around the pipe, the thickness of the
concrete surrounding the pipe should
be at least 30 mm.
8.3 Thermal insulationIn humid environments there can be the
need to insulate the pipe system to
prevent condensation and subsequent
water dripping from it. Condensation can
happen when the relative humidity is
above 40%. Commonly the temperature
in the top of buildings is rather high.
To prevent condensation on the pipe
surface, it is necessary to use sufficient
insulation thickness and a vapour sealed
foil on the outside. The thickness of the
insulation sheet depends on the ambient
temperature, the humidity and of course
the medium temperature. Be aware that
a high ambient temperature is more
critical for condensation than a low
ambient temperature. A risk assessment
by the designer shall reveal the need for
thermal insulation. For most situations, a
15 mm thick insulation sheet can be
taken as a guideline.
8.4 Acoustic plus thermalinsulation
When to install acoustic insulationsheets
Like any rainwater system, siphonic roof
drainage systems generate noise when
transporting rainwater. In sensitive areas
within buildings such as offices, concert
halls, courthouses and hospitals where
noise should be kept to a minimum level,
it is recommended to wrap the Wavin
QuickStream system in the relevant areas
with Wavin acoustic insulation sheets. In
addition to acoustic insulation, these
insulation sheets also provide a thermal
insulation.
The sheet is built-up around a layer with
a high specific weight acting as a sound
barrier. On the outside there is a water
resistant layer and on the inside a foam
layer provides thermal insulation. The
material can be easily bent and wrapped
around pipes and fittings.
With one layer the sound level can be
reduced between 15 and 22 dB, depen-
ding on the type of installation and the
location of the measurement.
Installation of acoustic insulation
sheets
The material is very flexible and is easy to
apply.
The Wavin acoustic insulation sheets can
be easily cut to size and shape with a
knife or industrial scissors.
Cut to required shape.
Fix to pipe and fittings using double
sided Wavin adhesive tape or a con-
tact cement/glue. The layer with the
high specific gravity needs to be
located on the outside.
It is of utmost importance to avoid
gaps.
Close seams with 50 mm wide
adhesive tape.
Installation manualSpecial constructions
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9.1 Discharge systems andcapacity
The discharge should be above water
level in gravity discharge systems of
sufficient capacity. To guarantee the
evacuation of air in the pipework and that
the attainment of siphonic action is not
retarded, the discharge point should be
installed at a higher level than the water
in the gravity drainage system. It is always
recommended to install an overflow relief
chamber. This inspection chamber
should have a cover with an open grating
to allow water overflow when the gravity
system is not able to cope with the
discharge capacity of the siphonic system.
For the calculation of the capacity of
storm water or combined sewer systems
a lower rain intensity is usually used
compared to the calculation for the
rainwater system of a building. When the
discharge of the Wavin QuickStream
system is in the building, the overflow
relief chamber should be installed outside
the building in the gravity system. If the
discharge of the Wavin QuickStream
system has been extended to outside the
building, Wavin can supply a special
overflow relief chamber with an inlet
connection to the Wavin QuickStream
system and a bigger outlet diameter
connection towards the gravity sewer.
If the discharge takes place directly in
open water or in a sewer system, the
Wavin engineers have adapted the last
pipe length to the appropriate diameter to
reduce the flow speed. In any case the
adjacent gravity discharge system must
be able to cope with the design flow of
the Wavin QuickStream roof drainage
system. The provided design of each
Wavin QuickStream system indicates the
maximum discharge flow. It is the
responsibility of the contractor to
investigate if the existing ventilated
drainage system has sufficient capacity.
As guidance table 10 presents the
maximum flow in [l/s] of 100% filled pipes
dependending on the gradient. For a
ventilated drainage system, a larger pipe
diameter should be selected.
Installation manual????????
Installation manualConnection to the gravity system
9. Connection to the gravity system
Table 10. Maximum flow in [l/s] of 100% filled pipes at various gradients of drainage pipes.
Note: Above table is based on a friction factor kb = 0.40 suitable for plastic pipes and a water temperature of 10°C. The Du reflects a
PVC SDR34 pipe class. Other pipe materials such as concrete might have a higher friction factor and consequently the above
table cannot be used for these materials.
Hydraulic gradient / slope
[mm/m] 1 2.5 5 7.5 10
slope 1:1000 1:400 1:200 1:133 1:100Du Di
100 1.9 3.1 4.4 5.4 6.3
110 2.1 3.4 4.8 6.0 6.9
125 2.9 4.8 6.8 8.4 9.7
150 5.5 9.1 13.0 16.1 18.6
160 5.8 9.3 13.2 16.2 18.7
200 10.6 16.8 23.9 29.4 34.0
200 12.4 19.8 28.1 34.5 39.7
250 19.2 30.4 43.2 53.1 61.4
250 22.6 35.7 50.7 62.3 72.0
315 35.5 56.1 79.6 97.7 113.0
300 36.6 57.9 82.1 100.0 116.0
400 66.9 105.0 149.0 183.0 212.0
400 78.5 123.0 175.0 215.0 248.0
450 91.3 144.0 203.0 250.0 289.0
450 107.0 168.0 239.0 293.0 338.0
500 120.0 190.0 269.0 329.0 381.0
500 141.0 222.0 315.0 386.0 446.0
630 221.0 348.0 493.0 605.0 699.0
600 228.0 360.0 509.0 624.0 721.0
800 487.0 765.0 1,082.0 1,326.0 1,532.0
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Wavin QuickStream PE35
9.2 Buried pipe systemsThe general installation rules for
underground plastics pipes are
applicable. In short these rules are:
Keep trench widths as narrow as
practicable, but not less than 300
mm wider than the pipe.
Trench bottom must be flat and free
from stones or other hard obstacles
that might exert a point load on the
pipe later on.
PE pipe systems are normally welded
by either butt fusion or electro socket
fusion.
Underground PVC systems should
always be jointed by rubber seal
joints and never be solvent cement
welded.
Loosen the trench bottom.
Install pipe and check gradient.
Side-fill with non-cohesive soil, like
sand and compact especially to the
side of the pipe.
Complete side filling with non-cohesive
backfill material till approximate 0.3 m
above pipe crown.
Compact side-fill on both sides of the
pipe, preferably with a mechanical
compactor.
Complete back filling of the trench.
For this native soil may be used,
unless project specification indicate
differently.
Alternatively the EN1610 guidelines on
the installation of buried pipe systems
can be followed.
Figure 93. Excavation, bedding and
backfill.
Installation manualConnection to the gravity system
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Commissioning
As a Wavin QuickStream roof drainage
system operates at both over and under
pressures, it is necessary to carry out a
leak tightness test:
Close the discharge of each Wavin
QuickStream system and fill-up the
system with water to roof level.
Check all connections for leakages.
Unplug the discharge on completion
of the inspection.
If the building is over 40 meters high,
the pipe system needs to be split-up in
sections not higher than 40 meter.
After initial commissioning of the system,
a further inspection should be performed
as part of the total commissioning after
the first heavy rainfall, or at the latest
within the first half year of use.
Maintenance
Inspect in spring en autumn
Roof drainage systems will mostly be
inspected in spring and autumn. The
best moment is directly after the trees
have dropped their seeds and after
leaf fall. In geographical areas having
predictable rainy seasons, inspection
and maintenance should performed
just before rainy season starts.
Clean roof en gutters
Roof and gutters must be cleared of
deposits, whereby it is not allowed to
flush the dirt through the Wavin
QuickStream roof outlets.
Inspect roof outlets
All Wavin QuickStream roof outlets
must be inspected and checked on
proper functioning by letting water
run into the outlets. When water runs
away, the outlet is OK. Eventually a
small contamination in the system will
be flushed down with the first rainfall.
Inspect emergency overflow chamger
As accumulated dirt in the system will
be flushed into the emergency
overflow chamber or the reception
chamber, at least once a year this
part of the system must be inspected
as well.
Recommendations
If the emergency overflows have been
discharging during a rainfall, the roof
outlets need to be inspected for
obstructions. It is recommended to
record details of any such incidents
and the measures taken to rectify the
situation.
Installation manual????????
Installation manualCommissioning & Maintenance
10. Commissioning & Maintenance
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Wavin QuickStream PE37
If after commissioning, water is observed
to regularly discharge through the
emergency overflows it can be concluded
that the system is not functioning
according design. Possible causes for
this are listed below.
Solutions related to improper
installation and/or maintenance:
Accumulated dirt can hinder the flow
towards the roof outlets.
Solution: clean the roof and the roof
outlets.
Construction debris in the system
reduces the flow capacity.
Solution: clean the pipe system.
There has been a violation with the
design, e.g. a wrong pipe diameter
(too big or too small), wrong pipe
lengths (e.g. tail pipes or distances
from outlet to collector pipe) or the
pipe layout is changed.
Solution: change the pipe layout to
the design made by Wavin or contact
Wavin for a new design.
In violation of the design, an additional
small roof or soil and waste discharge
is connected to the system, through
which air is sucked into the system.
Solution: change the pipe layout to
the design made by Wavin or contact
Wavin for a new design.
Solutions to problems caused by
operating outside the prescribed
design parameters or design criteria:
The main gravity sewer in which the
roof drainage system discharges is
over-loaded or blocked and no
emergency overflow chamber with
sediment catchments has been
installed.
Solution: install an emergency
overflow chamber between the
discharge point of the Wavin
QuickStream system and the main
gravity sewer system.
The water level in the discharge
chamber at the start-up of the
rainwater flow from Wavin
QuickStream system is too high so
that the escape of air is hindered.
Solution: reinstall the gravity sewer
pipe to a lower level or contact Wavin
to discuss the implications of instal-
ling the discharge point of the Wavin
QuickStream system at a higher level.
Due to high negative pressure air
cavities might occur, reducing the
maximum flow capacity.
Solution: Wavin verifies all designs on
the maximum allowable negative
pressure and adapts the design to
such an extent that cavitation will not
occur. Compare the installed system
to the installation drawings made by
Wavin and correct differentiations.
The emergency overflows have been
constructed too low. In that case the
build-up of a sufficient water level on
the roof enabling good priming of the
system will not take place. The system
cannot reach its design drainage
capacity while water is flushed away
through the emergency overflows.
Solution: increase the heights of the
emergency overflows in consultation
with the building designer and Wavin.
Advice can be sought from the Wavin
technical team.
11. Problem solving / technical support
Installation manualProblem solving / technical support
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Wavin QuickStream PE39