6
Click here to load reader
Click here to load reader
InstallationPPR piping installation
Main types of PPR piping installation:
- Internal installation
- Installation in ducts
- Open installation
Various basic rules and conditions
working conditions and necessary compensation
process.
Pipeline mounting technique
Two types of pipeline supports are most fr
is recommended to use pipe clamps with rubber protectors, which are specially designed
for PPR pipes; it is important, that the
clamp should do not damage the surface
of the pipe.
Fixed points
This type of fixing is excludes the
possibility of compensation; fixed supports
should be installed at different sections of
the pipe to avoid uncontrolled movement
of the pipe. Fixed points normally must be
positioned where the system changes
direction to ensure expansion points are
not discharged. The distance between
fixed points should be measured properly
and the forces of expansion should be
considered. Never use pivoting clamps as
fixed points.
Sliding points
This type of mounting allows the pipe to
move axially in both directions without damaging it. Sliding points should be positioned
distantly from the joints (fittings) to ensure the free movement of the pipe without any
damaging. Such type of installation does not restrict any expansion movement.
Key to abbreviations
FP – Fixed Point
SP – Sliding Point
Installation
Main types of PPR piping installation:
Various basic rules and conditions – including linear thermal expansion, joint method,
working conditions and necessary compensation – are to be considered during installation
Pipeline mounting technique
Two types of pipeline supports are most frequently used: fixed points and sliding points. It
is recommended to use pipe clamps with rubber protectors, which are specially designed
for PPR pipes; it is important, that the
clamp should do not damage the surface
type of fixing is excludes the
possibility of compensation; fixed supports
should be installed at different sections of
the pipe to avoid uncontrolled movement
of the pipe. Fixed points normally must be
positioned where the system changes
ure expansion points are
not discharged. The distance between
fixed points should be measured properly
and the forces of expansion should be
considered. Never use pivoting clamps as
This type of mounting allows the pipe to
e axially in both directions without damaging it. Sliding points should be positioned
distantly from the joints (fittings) to ensure the free movement of the pipe without any
damaging. Such type of installation does not restrict any expansion movement.
including linear thermal expansion, joint method,
are to be considered during installation
equently used: fixed points and sliding points. It
is recommended to use pipe clamps with rubber protectors, which are specially designed
e axially in both directions without damaging it. Sliding points should be positioned
distantly from the joints (fittings) to ensure the free movement of the pipe without any
damaging. Such type of installation does not restrict any expansion movement.
Table 4. Distance between supports for
PPR pipes and PPR/Al/PPR pipes
Table 4. Distance between supports for Blue Ocean
PPR pipes and PPR/Al/PPR pipes (horizontal pipeline)
Blue Ocean
(horizontal pipeline)
Internal installation
Internal installation is understood as cement or plaster
covering installation, under floor or in
plaster covering installation of the pipeline, the thermal
expansion usually is not considered, but isolating of the
pipeline should be done in accordance with DIN 1988
Standard. The channel of the insulated pipe should be free
and should guarantee compensation of pipeline expansion. If
it is not necessary to insulate pipeline (cement covering
installation, under floor or in
considering of thermal expansion, the compensation will be absorbed through the
material.
During cold water (potable water) pipeline installation pipes should be insulated against
heat gain and formation of
accordance with DIN 1988, Part 2.
Table 5: Standard values for the minimum insulation
(thicknesses for cold (potable) water systems
Installation in ducts
During vertical installation at the time of assembling branches and elbows the
compensation of riser pipe should be considered.
At such installations it is recommended to use multilayer composite pipes (Blue
PPR/Al/PPR (PE-RT) or Blue Ocea
characteristics the linear expansion can be not considered. Fixed
and the distance between them should not exceed 3
If the installation goes with usage of usual PPR pipes, then it
to compensation.
Internal installation is understood as cement or plaster
covering installation, under floor or in-wall installation. During
plaster covering installation of the pipeline, the thermal
expansion usually is not considered, but isolating of the
be done in accordance with DIN 1988
Standard. The channel of the insulated pipe should be free
and should guarantee compensation of pipeline expansion. If
it is not necessary to insulate pipeline (cement covering
installation, under floor or in-wall installation), than installation can be held without
considering of thermal expansion, the compensation will be absorbed through the
During cold water (potable water) pipeline installation pipes should be insulated against
condensation. It is recommended to make insulation in
cordance with DIN 1988, Part 2.
Table 5: Standard values for the minimum insulation
thicknesses for cold (potable) water systems
During vertical installation at the time of assembling branches and elbows the
compensation of riser pipe should be considered.
At such installations it is recommended to use multilayer composite pipes (Blue
RT) or Blue Ocean Fiber-G pipes), thanks to its
characteristics the linear expansion can be not considered. Fixed supports should be used
and the distance between them should not exceed 3 meters.
If the installation goes with usage of usual PPR pipes, then it is necessary to
llation), than installation can be held without
considering of thermal expansion, the compensation will be absorbed through the
During cold water (potable water) pipeline installation pipes should be insulated against
condensation. It is recommended to make insulation in
Table 5: Standard values for the minimum insulation
During vertical installation at the time of assembling branches and elbows the
At such installations it is recommended to use multilayer composite pipes (Blue Ocean
G pipes), thanks to its advanced
supports should be used
is necessary to pay attention
Changing in length shouldbe guaranteed bycompensator, thiscompensator has tocompensate up and downmovements.
Notice: The pipes to be installed thr
Open installation
During open installation attention to the visual appearance of the pipeline should be paid.
PPR pipes have big coefficient of linear expansion, all types of possible compensation
should be considered in advance. Blue Ocean PPR/Al/PPR (PE
Fiber-G pipes have much lower linear expansion and it is better to use these pipes when
the strict consideration of compensation is needed.
The coefficient of linear expansion for Blue Ocean pipes:
PPR pipes:
PPR/Al/PPR pipes:
Blue Ocean Fiber-G pipes
Figure 2. The coefficient of linear expansion
If the duct has enoughspace for installing theflexible arm compensator,then it is recommendedto use this type ofcompensation.
If the duct does not hasenough spacecalculated compensator,the wall hole should beenlarged tofree movement.
Notice: The pipes to be installed through the wall holes should be insulated
During open installation attention to the visual appearance of the pipeline should be paid.
PPR pipes have big coefficient of linear expansion, all types of possible compensation
should be considered in advance. Blue Ocean PPR/Al/PPR (PE-RT) and Blue Ocean
G pipes have much lower linear expansion and it is better to use these pipes when
the strict consideration of compensation is needed.
The coefficient of linear expansion for Blue Ocean pipes:
α=0.15mm/mºС
α=0.03mm/mºС
G pipes: α=0.05mm/mºС
Figure 2. The coefficient of linear expansion for Blue Ocean pipes
If the duct does not hasenough space to install thecalculated compensator,the wall hole should beenlarged to guarantee thefree movement.
ough the wall holes should be insulated
During open installation attention to the visual appearance of the pipeline should be paid.
PPR pipes have big coefficient of linear expansion, all types of possible compensation
RT) and Blue Ocean
G pipes have much lower linear expansion and it is better to use these pipes when
for Blue Ocean pipes
Blue Ocean PPR pipes linear expansion calculation example
The linear expansion (contraction) is calculated according to the following formula:
α×L×∆T
∆L - linear expansion (mm)
α - coefficient of linear thermal expansion (mm/mº
L - initial length of the pipe (m)
∆T - temperature difference between installation and operating temperature (º
Example 1:
∆L - ? (mm)
α1 = 0.15mm/mºС (PPR pipes)
α2 = α=0.03mm/mºС (PPR/Al/PPR pipes)
α3 = α=0.05mm/mºС (Blue Ocean Fiber
L = 5m
T1 = 60ºС (Operating temperature)
T2 = 20ºС (Installation temperature)
∆T = T1 - T2 = 40ºС
Solution:
∆L = 0.15mm/mºС × 5m × 40º
∆L = 0.03mm/mºС × 5m × 40º
∆L = 0.05mm/mºС × 5m × 40º
Linear expansion compensating methods
Flexible arm
Minimal length of the flexible arm is calculated according
to the following formula:
Ls = C ×
Ls - required length of flexible section (mm)
C - constant of material (PPR=30)
D - pipe outside diameter (mm)
∆L - linear expansion (mm)
Blue Ocean PPR pipes linear expansion calculation example
The linear expansion (contraction) is calculated according to the following formula:
linear expansion (mm)
coefficient of linear thermal expansion (mm/mºС)
initial length of the pipe (m)
temperature difference between installation and operating temperature (º
С (PPR pipes)
С (PPR/Al/PPR pipes)
С (Blue Ocean Fiber-G pipes)
С (Operating temperature)
С (Installation temperature)
× 5m × 40ºС = 30mm (PPR pipes)
× 5m × 40ºС = 6mm (PPR/Al/PPR pipes)
× 5m × 40ºС = 10mm (Blue Ocean Fiber-G pipes)
Linear expansion compensating methods
Minimal length of the flexible arm is calculated according
to the following formula:
required length of flexible section (mm)
constant of material (PPR=30)
pipe outside diameter (mm)
linear expansion (mm)
Blue Ocean PPR pipes linear expansion calculation example
The linear expansion (contraction) is calculated according to the following formula: ∆L =
temperature difference between installation and operating temperature (ºС)
G pipes)
Example 2:
Ls - ? (mm)
D = 40mm
∆L = 30mm (calculated in Example 1)
Solution:
Ls = 30 × = 1039mm (Length of flex
Pipe with outside diameter 40mm and length 5m with temperature difference equals to
40ºС should be supported by fixed mounting at the length of 1039mm on the elbowing
side.
U-type compensation
If linear expansion can not be compensated by changi
recommended to use U-type compensation.
Width of U-type compensation is calculated according to the following formula:
Wk = 2 × ∆L + SL
Wk - width of compensation (mm)
∆L - linear expansion (mm)
SL - 150mm (safety distance)
Notice: Wk should be ≥ 10D
Example 3:
Wk - ? (mm)
∆L = 30mm (calculated in Example 1)
SL = 150mm
Solution:
Wk = 2 × 30mm + 150mm = 210mm
The width of U-type expansion loop should be 210mm.
L = 30mm (calculated in Example 1)
= 1039mm (Length of flexible arm)
Pipe with outside diameter 40mm and length 5m with temperature difference equals to
supported by fixed mounting at the length of 1039mm on the elbowing
If linear expansion can not be compensated by changing of direction, then it is
type compensation.
type compensation is calculated according to the following formula:
width of compensation (mm)
linear expansion (mm)
150mm (safety distance)
≥ 10D
L = 30mm (calculated in Example 1)
Wk = 2 × 30mm + 150mm = 210mm
type expansion loop should be 210mm.
(http://www.boig.asia/
Tel Vietnam
Pipe with outside diameter 40mm and length 5m with temperature difference equals to
supported by fixed mounting at the length of 1039mm on the elbowing
ng of direction, then it is
type compensation is calculated according to the following formula:
http://www.boig.asia/)
ietnam: 091.8182.587
