ESP-4205-1-EN

SPECIFICATION FOR

THERMAL INSULATION OF

EQUIPMENT AND PIPES

ESP-4205-1

Page 1 of 48

ESP-4205-1-R7-EN

ESP-4205-1

SPECIFICATION FOR

THERMAL INSULATION OF EQUIPMENT AND

PIPES

7 31-dic-06 JLM JLM JMV

6 30-jun-06 JLM JLM JMV

5 1-jun-06 JLM JLM JMV

4 oct-96

3 oct-96

REV. DATE PREPARED BY APPROVED BYFINAL

APPROVALDESCRIPTION

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TABLE OF CONTENTS

1 GENERAL ISSUES..................................................................................................................4

1.1 Purpose............................................................................................................................4

1.2 Scope of Application.......................................................................................................4

1.3 Applicable Codes, Regulations and Standards ............................................................4

2 SCOPE OF THE WORK ..........................................................................................................4

2.1 Description of the Work..................................................................................................5

2.1.1 General issues ................................................................................................................5

2.1.2 Storage tank insulation ....................................................................................................9

2.1.3 Equipment insulation .....................................................................................................10

2.1.4 Pipe insulation ...............................................................................................................12

2.1.5 Cold insulation...............................................................................................................14

2.2 Contractor Obligations .................................................................................................15

2.2.1 Engineering ...................................................................................................................16

2.2.2 Execution ......................................................................................................................16

2.3 Specific safety measures during the execution of the work ......................................16

3 MATERIALS, CHARACTERISTICS AND STANDARDISATION...........................................17

3.1 Characteristics and standardisation of the materials supplied by the Contractor for

inclusion in the work ...............................................................................................................17

3.2 Certificates required of materials to be supplied by the Contractor .........................23

4 GENERAL CONSIDERATIONS.............................................................................................24

5 INSPECTION AND TESTING ................................................................................................24

6 GUARANTEES AND RESPONSIBILITIES............................................................................24

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ANNEX 1. INSULATION THICKNESS..........................................................................................25

ANNEX 2. SCHEME OF PIVOTING WINDOWS FOR INSPECTION............................................30

ANNEX 3. MEASUREMENT AND PAYMENT REGULATIONS ...................................................31

ANNEX 4. PRICE LIST .................................................................................................................35

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1 GENERAL ISSUES

1.1 Purpose

The purpose of this Specification is to define the extent of the insulation and the conditions to be

fulfilled by its supply and execution, as well as the materials and thickness of the external thermal

insulation of pipes and equipment for conserving cold, heat and personal protection.

This Specification is mainly based on the "Mineral Wool" insulation type, typically used for heat

insulation in CEPSA installations.

The accompanying insulation thickness tables for equipment and pipes are based on this material.

When a different type of material is specified for insulation, the thickness must be calculated and

differences in design and assembly may exist, depending on the specific characteristics of each

material.

1.2 Scope of Application

This Specification shall apply to petroleum refining, petrochemical and liquid storage installations of

CEPSA, except for petrol and natural gas stations.

It shall be applied in new investment projects, existing unit revamping projects, and in maintenance

work.

1.3 Applicable Codes, Regulations and Standards

In addition to the prescriptions of this Specification, the Codes, Regulations and Standards

indicated below will be applicable, always in their latest version.

ESP-4200-1 General Construction Conditions.

ESP-4202-1 Pipe Assembly

CEPSA Procedures (PR).

CEPSA Specific Procedures (PRE).

Specific regulations of each Centre.

And the corresponding Technical Requirements in each case.

2 SCOPE OF THE WORK

The scope of the insulation work shall be in accordance with the project drawings and documents.

The following must be considered basic definition elements: the list of lines, list of equipment,

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piping drawings (isometric or plan) and the drawings of equipment with insulation.

2.1 Description of the Work

This Specification includes the following work:

- Supply of all insulating, protection, support and sealing material.

- Prefabrication of all elements that make up the insulation of pipes and equipment.

- Assembly of all prefabricated and commercial elements needed to conform the insulation of

pipes and equipment.

2.1.1 General issues

- In general, all pipes and equipment operating at temperatures above 65ºC shall be insulated to

conserve heat, except where the heat must be dissipated.

- Pipes and equipment operating above 65ºC not insulated for heat conservation shall be

insulated for personal protection in their accessible areas, following the thickness criteria

according to the temperature specified in the tables of Annex 1.

- Pipes or equipment operating between 0ºC and ambient temperature shall be insulated to

prevent condensate water from dripping on equipment, potentially damaging them, or on the

floor, making it slippery.

- All pipes, instruments and equipment with accompanying steam or externally heated shall be

insulated.

As a rule, connections of accompanying pipes shall be made outside the insulation.

- The insulation thickness to prevent condensation shall be at least 30 mm.

- The insulation thickness shall be determined according to the operating temperature of each

case.

For pipes or equipment with accompanying steam or other heating fluid, the insulation thickness

shall be determined according to the temperature of the heating means, provided it is greater than

that of the process fluid.

- For electrically heated pipes, the thickness shall be that immediately greater than that

corresponding to the operating temperature.

- For jacketed pipes and equipment, the insulation thickness shall be determined according to

the operating temperature of the heating fluid.

- For equipment in general, the temperature used to determine the insulation thickness shall be

the highest operation temperature.

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- The insulation must not be considered as fireproofing material. In specific cases in which the

process or design requires it, "Practical Recommendation API 521" shall be observed. These

cases shall be identified by insulation type code I.

Contact shall be considered likely, for purposes of insulation for personal protection, in areas less

than 2,150 mm from the floor and platforms, or less than 900 mm horizontally in platforms and

walkways used by personnel in their work.

As a general rule, personal protection shall consist of placing reduced thickness insulation as per

the table of Annex 1.

When personal protection insulation is not desired or is not practical, appropriate protections shall

be provided according to the following section.

Where only personal protection is required, a wire mesh cage enclosing the hot surface can be

acceptable (standard STD-L-132). This option is preferred in:

a) Complex pipe sections, such as manifolds with accompanying steam.

b) Flanges of pipes and equipment.

c) Flanged valves.

d) High-temperature lines requiring heat dissipation.

Handwheels of valves enclosed in this way shall protrude out of the cage, which shall be built in

order to allow a simple disassembly.

Before fitting the insulation, the surfaces must be dry and free of dirt, rust, embedded objects, oil,

etc.

All elements to insulate must have an anticorrosion protection applied previously. This operation

shall be performed by a third party.

The insulation must not be installed until all construction tests have been completed, except when

authorised by the CEPSA Supervisor. When the pipes have been assembled and the hydraulic

tests have been performed but not leakage tests have been performed on flanged and threaded

joints, the insulation can be placed except in the aforementioned placed until the tests provide fully

satisfactory results.

In any case, flanges that must be insulated due to their process will not be insulated until they have

operated at normal operating pressure and temperature and after checking absence of leakage.

When the insulation thickness is greater than 80mm, the thermal insulation shall be applied in two

layers with the staggered joints.

All insulation supports that require welding shall be made of materials similar to that of the pipes or

equipment that must be joined, as per specification ESP-4202-1.

Welding on pipes and vessels is forbidden in areas with thermal treatment, glass coating and brick

coating.

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Welding will not be allowed in any case without the approval of the CEPSA Supervisor, and must

always be performed by ASME IX certified welders, as per Specification ESP-4202-1.

Pipe and vessel reinforcement rings shall be used to support the insulation. If the depth of the

reinforcement rings is greater than the insulation thickness, the insulation and an appropriate

aluminium plate will be installed on the ring to prevent heat losses and entry of water in the

insulation.

As a rule, in accordance with the CEPSA standards, the manufacturer of the equipment shall

provide the supports for installing the insulation.

All gaps and joints present in insulation shells or panels used in irregular surfaces shall be filled

with remnants of the same insulating material.

Small irregular surfaces and insulation end points shall be protected from atmospheric agents with

a suitable mastic.

Insulation edges shall not be left free. The system for protection against atmospheric agents shall

be continuous and overlapping.

Gaps in the insulation, such as accompanying steam lines, instrument connections, vents and

drains, pipe hangers, valve caps, etc shall be closed hermetically.

In vessels with thermal insulation fitted with external stiffeners, the latter can be embedded in the

insulation provided they are covered with at least a 30mm thickness of insulation. Otherwise,

external boxes shall be constructed to cover the stiffener with insulation with the same thickness as

the rest of the vessel.

All pressure equipment with insulation shall be provided with windows that can be opened to

inspect thickness by ultrasound (see Annex 2).

As a rule, the following shall not be insulated due to safety, operational or maintenance reasons,

unless otherwise specified by CEPSA:

a) Steam traps.

b) Equipment identification plates, passing the insulation behind them whenever possible.

c) Flanged connections in pipes.

d) Pumps, fans, compressors and other equipment and machinery placed in circuits with

insulation.

e) Valves of insulated piping systems, except when:

- They are in steam systems.

- They are in traced lines.

- It is necessary for personal protection, and they are not otherwise protected.

f) Valve covers or turrets, in all cases.

g) Safety valve bodies, unless they have accompanying steam.

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h) Flanges and screws of heat exchangers.

i) Heads and rings of heat exchangers.

j) Pipes and equipment heated internally, such as discharge valves, air purge, steam inlets and

outlets, flame and extinguishing systems and bypasses in control valves or exchangers, except

when required for personal protection or to keep the process fluid from freezing.

k) Manhole covers.

l) Pipe and equipment supports, except in critical lines.

m) Expansion joints, covers of inspection openings for filters and mixers installed in lines.

n) Equipment with internal refractory material. Personal protection in these equipments shall be

obtained by means other than insulation.

o) Visual indicators for level, pressure or temperature, incorporated in equipment that must

receive thermal insulation.

p) Internal areas and lower spherical bases of towers with diameter less than 750 mm when they

are in support skirts.

q) Flange unions of reactor pipes.

The code for identifying the insulation type shall be:

None ................................................................................... N

Personal protection ............................................................. P

Heat conservation ............................................................... C

Double insulation-fireproofing functions ……………………. I

Tracing with steam and thermal insulation .......................... V

Tracing with oil and thermal insulation ................................ A

Tracing with hot water and thermal insulation ...................... W

Electrical tracing and thermal insulation .............................. E

Cold conservation ............................................................... F

Jacketing and thermal insulation ......................................... X

Cathodic protection ............................................................. K

Simple corrosion protection (Poliken or similar) …….. Z

The identification code for the insulation type shall be reflected in the Engineering Drawings and

the List of Lines.

The insulation thickness shall be specified in the equipment drawings, list of lines, etc.

If a change of insulation material is considered for any reason, it must be approved by CEPSA.

Whenever maintenance tasks, inspection tasks etc. require removing the insulation regularly, it can

be of the removable type based on metallic boxes with two halves, which have the insulation inside

them and attached with quick pressure latches to simplify their handling, or removable flexible

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insulation based on insulating mats.

2.1.2 Storage tank insulation

If the insulation is attached by welded bolts, these shall have a diameter of at least 8 mm with a M5

threaded head.

The insulation, as well as the corrugated plate covering attached to these bolts, shall be secured

by blind nuts and the corresponding washers. The internal washer shall be made of aluminium and

the external washer shall be made of aluminium-neoprene, while the external blind nut shall be

made of brass.

If the spacer ring system is used to attach the insulation, these shall be made of 30 x 3 mm carbon

steel plate.

The rings shall be attached to tabs of the same material which will be welded to the tank, with a

length equal to the thickness of the insulating material.

Between the pin and the ring, a ceramic wool board 3 or 4 mm thick shall be placed to reduce the

thermal bridge.

The insulating material shall be placed between the spacer rings with the joints flush, such that

there are no uncovered areas, and secured by 1.5 mm galvanised steel wire arranged in

quincunxes. The corrugated plate covering shall be attached to the spacer rings by no.10 round

head self-tapping stainless steel screws with 4.8 mm diameter and 16 mm length, provided with

aluminium-neoprene washers.

When the tank to insulate is made of stainless steel, the tabs of the spacer rings shall be made of

the same material.

The vertical joints of the coating plate shall be overlapped by one wave, and sewn with aluminium

POP rivets.

Circumferential joints shall be overlapped 100 mm. These joints shall be provided with "S" type

cramps made of 20 x 1 mm. stainless steel bands, preventing vertical displacement of the plates.

All plate joints shall be placed downstream, to prevent water from entering them upon contact with

the insulation.

Roof insulation will be performed by welding, in a radial and circumferential direction, spacers

formed by U-bars of 20 x 40 x 20 x 1.5 mm carbon steel, on which are riveted the tabs of a 30 x 3

mm carbon steel plate with the same length as the thickness of the insulating material.

Between the pin and the U-bar spacer, a ceramic wool board 3 or 4 mm thick shall be placed to

reduce the thermal bridge.

The insulating material will be placed between the spacers with the joints flush, so that there are no

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uncovered spaces, and the smooth plate covering will be bolted on the spacer bars with self-

tapping round-head no. 10 stainless steel screws, with 4.8 mm diameter and 16 mm length,

provided with aluminium-neoprene washers.

The radial joints of the roof covering plate will be bent 90º and a cap of the same plate placed on

them, riveting the assembly together to prevent the wind from blowing off the plates.

The transverse joints will be suitably flanged and sealed with a suitable mastic to prevent rain

water from entering the insulation.

All plate joints shall be placed downstream, to prevent water from entering them upon contact with

the insulation.

2.1.3 Equipment insulation

The ring spacers will be identical to those specified in section 2.1.2, with their tabs resting on the

surface of the equipment.

The insulating material will be placed as specified in section 2.1.2.

As regards flexible insulating material (mineral wool or glass fibre), the blankets shall be placed

with the metallic mesh incorporated on one of their faces on the outside, alternating the position of

the longitudinal joints so that they do not coincide, firmly tying the adjacent ends of the mesh with

galvanised steel wire to ensure continuity of the insulation.

When a multiple layer insulation is used, special care must be taken to dispose joints alternately so

that they do not coincide in adjacent layers. When the insulation is performed with a rigid material,

the parts must be placed flush and as tightly as possible, attempting to leave no gaps in the

insulation. Any small gaps must be filled in with remnants of the same insulating material.

The metallic coating shall be fitted whenever possible with complete washers, with flanged joints,

overlapping at least 50 mm and facing downstream (to prevent water from entering).

The screws used to attach the plates to each other shall be self-tapping no. 8 round head stainless

steel screws with 4.2 mm diameter and 13 mm length, placed with a maximum separation of

200 mm.

For zeppelin and bulging bases, the coating material shall be prefabricated after tracing the parts in

forms of interlocking segments, secured by pop rivets at their unions so that the outer coating is as

adapted as possible to the curvature of the bare base.

Ends of cuts made in the metallic coating due to the presence of supports, tubing, characteristics

plates, etc. shall be protected by adjusted jacks, without touching the element in question,

interposing the corresponding waterproofing mastic.

For units with skirts, etc. the insulation assembly shall comply with CEPSA standard STD-RP-036

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(insulation supports - heat service). For equipment with dual-function insulation: Insulation-

Fireproofing, refer to standard STD-RP-036 (pages 2 and 3).

If it is necessary to provide insulation at inspection doors, manholes, blind flanges, pumps,

turbines, etc., the insulation shall be removable, based on metallic boxes with two halves with the

insulation incorporated on their inside and secured by fast pressure locks to simplify their operation

in maintenance procedures.

For the specific case of rotary equipment, the thermal insulation shall leave the lock boxes

uncovered.

Accessories, special pipe equipment and vessel tubing shall be insulated with the same

requirements as pipes.

When there is austenitic stainless steel equipment in aggressive environments, to prevent

corrosion when the equipment is out of service, the equipment shall be painted before placing the

installation. This operation shall be performed by third parties.

The insulation thickness for the equipment shall be that indicated in the table "Equipment

Insulation Thickness" included in Annex 1.

The vessel seller shall supply the clips, rings and attachment supports for the insulation, as

specified in the Specifications and/or drawings of the equipment.

If any additional unplanned attachment elements are required the insulation Contractor shall notify

the CEPSA Supervisor so that the situation can be considered.

Equipment such as pumps, turbines, heads and exchanger tubing, as well as irregular surfaces,

shall be insulated when necessary in the most appropriate manner, either with fixed insulation

along the surface of the equipment or with removable insulation based on metallic boxes with two

halves, with the insulation incorporated in them, secured by rigid pressure locks to simplify their

handling.

Equipment with risk of fire shall be insulated with materials able to withstand high temperatures

(ceramic fibres, calcium silicate, etc.). The product to use shall be specified in the documentation

provided by CEPSA for each specific job.

In specific cases where the process requires the insulation to fulfil the functions of thermal

insulation and fireproofing (code I), supports welded to the equipment (thickness 10 mm) shall be

spaced at most 450 mm along the length of the equipment (at least 3 supports) where the spacing

brackets (as per standard) will be welded to attach the coating plate duly insulated with ceramic

fibre board with 3 mm thickness. In these cases the coating plate shall be made of stainless steel

plate 1mm thick.

This design may be changed at the contractor's request, with the prior approval by the CEPSA

supervisor.

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When this is the case for an existing equipment, the design shall be made according to the welded

supports in place, with the prior approval of the CEPSA supervisor.

2.1.4 Pipe insulation

The insulation material for single layer insulation, or on both layers in multilayer insulation, shall be

secured by loops of galvanised steel wire with a maximum separation of 300 mm between loops,

taking care to twist the ends and embed them in the insulation.

For rigid insulation, joints that are not properly flush and present gaps or defects will be filled with

remnants of the same insulating material.

When mineral wool or fibre glass blankets are used, the procedure shall be as described in

section 2.1.3.

At the ends and/or discontinuities in the insulation, such as flanges, flanged valves, control

elements, etc., the insulation shall be ended in a bevel or straight shape (sealed to prevent entry of

water) so that there is enough space to remove the bolts or any other elements without damaging

the insulation.

The external coating will be made with aluminium plate tubes, cut to the length of the insulated

pipe with a minimum overlap of 50 mm in longitudinal joints. These tubes shall be cylindered and

flanged in the workshop and assembled on site when the pipe is insulated, tensioning them with

appropriate tools so that there is no slack between the insulation and the coating, with transverse

overlapping whenever possible, facing downstream so that water does not enter the insulation.

Transverse joints shall be flanged and tongue and grooved with telescoping expansion joints,

according to the following table (unless otherwise specified):

Distance between joints (in meters)

Material

Pipe

Ø

NominalT 250ºC 250ºC < T 500ºC T > 500ºC

Carbon

Steel

Ø 4” 20 10 8

4” to 10” 15 8 6

Ø > 10” 10 5 3

Stainless

Steel

Ø 4” 15 8 4

4” to 10” 12 5 3

Ø > 10” 10 4 2

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When the insulating material is rigid, at positions corresponding to expansion joints the insulation

shall be interrupted for a length of 25/30 mm, installing a ceramic fibre gasket.

When attaching longitudinal joints with self-tapping screws, these shall be placed at most 200 mm

from each other.

The end of the metallic coating in insulation discontinuity areas will be established by reduction,

preventing contact of its end with the pipe by a heat-resistant tape (e.g. ceramic wool corrugate).

At the ends of cuts in the coating, proceed as described in section 2.1.3.

For pipes with accompanying steam, the main pipe will be joined to the tracing pipe(s) by bands, or

with aluminium foil when it is considered necessary to form a heating chamber.

The banding operation shall be performed by third parties, while the creation of a heating chamber

will be performed by the insulation installer.

Proceed similarly when the specifications indicate the installation of products for improved heat

transmission and distribution between the main pipe and the accompanying heat pipes.

Next, install the insulating material with special care to ensure that the longitudinal joint of the

insulation is opposite to the position of the tracer, and if there is more than one of the latter, such

that it does not coincide with one of the tracers.

As a rule, connections of accompanying pipes shall be left outside the insulation.

For pipes insulated with shells, the elbows shall be insulated by cutting the shell into perfectly

adjusting segments, securing each segment with a loop of wire and observing the aforementioned

precaution to twist the ends of the wire loops and embed them in the insulation.

For pipes insulated with blankets, elbows may not be tamponed and must be insulated with formed

pieces cut from the blankets using appropriate templates, securing the assembly by weaving the

blanket mesh with the contiguous straight segments.

In pipes with diameter greater than 24”, at least two spacers must be installed at the ends of the

elbow.

The external coating in elbows shall be made using interlocking plate segments. These segments

shall be prefabricated in the workshop and as many as possible shall be assembled in the

worksite, so that the shape of the metallic coating resembles the shape of the bare pipe as closely

as possible. Special care shall be taken when making the flanges so that, after the adjacent

elements are interlocked, they cannot be released by accidental knocks.

When it is necessary to insulate valves, flanges or any other elements requiring periodic

manipulation, first proceed as described in section 2.1.4, and then insulate following the removable

system described in section 2.1.3.

Insulation in vertical pipes shall be supported by metallic rings joined to the pipe with a maximum

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separation of 6 meters.

Flanges, bodies of flanged valves and flanged accessories shall be insulated only for the following

services, and must be left bare for other services:

a) Pipes insulated for personal protection that are not otherwise protected.

b) Pipes inside which special fluids flow, which need the insulation required by Processes.

c) Valves, when they are in steam systems or in traced lines.

In any case, the insulation must not be established until the installation is started.

The insulation thickness for pipes shall be that indicated in the table "Pipe Insulation Thickness"

included in Annex 1.

In insulated lines operating at 280ºC or lower that rest directly on support beams, the insulation

shall be cut first in a wedge shape, leaving enough space on either side of the support to install a

heat conservation system that allows the movement of the pipes due to thermal expansion.

Overhead lines with high risk of fire shall be insulated with materials able to withstand high

temperatures, following the criteria indicated in section 2.1.3.

2.1.5 Cold insulation

Cold insulation of both equipment and pipes shall be treated to prevent passage of steam before

fitting the final layer.

The thickness to use and the type of insulation shall be determined in view of the temperatures and

the work for the different processes.

The main materials used as cold insulator are: Polyurethane (PUR and PIR), Cellular Glass and, in

specific cases, elastomeric foams.

Polyisocyanurate (PIR) is a variant of polyurethane foam (PUR).

PIR has a better performance in case of fire and in high temperatures than PUR (greater safety),

so that whenever polyurethane is specified it shall be understood that PIR will be fitted, unless it is

specified that PUR is desired.

This material is an excelled cold insulator, but its limitations must be considered (poor performance

in case of fire PIR - M2 and PUR – AE ).

Cellular Glass is an excellent cold insulator with good compression strength and totally fireproof -

Class 0 (fire safety). It has zero permeability, minimising any problems in the steam barrier.

Its zero permeability also provides it with optimum performance as heat insulator in pipes

conducting liquids that are flammable, such as heating oil, particularly in areas of valves and low

points where there is a risk that, in case of fluid loss, the insulation is impregnated and the leak is

not appreciated, with hazardous consequences.

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Elastomeric foams can be used in some special cases as insulation to prevent condensation in

cooling and climate control systems.

As stated above, cold insulation must receive a steam barrier treatment on its outer face, as

specified in each case. It is essential that this steam barrier be established perfectly, as the

functioning of the insulation placed depends on it.

This steam barrier may be based on a Foster 60-25 or similar type product applied in two layers,

between which a glass fabric is placed.

Polyester-aluminium-polyester sheets can also be used, with all the joints sealed with aluminium

adhesive tape.

The joints of insulating material, whether polyurethane or cellular glass, shall be sealed with

Foamseal 30 –45 or similar type elastic mastic.

When a second insulating layer is necessary, it must be placed such that all the joints are

staggered with respect to those of the first layer.

The insulating material shall be attached using adhesive tape reinforced with glass fibre, stainless

steel bands and in some cases with special adhesives.

When cellular glass is used, before installing it an antiabrasion coating such as Foster 30-16 or the

like shall be applied on the inner face of the cellular glass elements in contact with the pipes or

equipment to insulate.

As insulating coating, aluminium protection plates shall be used with their joints overlapping and

externally secured with stainless steel bands, to avoid damaging the steam barrier.

Alternatively, the plates can be attached using stainless steel screws, provided 20 mm thick

spacers are fitted first to prevent the screws for perforating the steam barrier.

Other types of protection will be considered specifically for each case.

Cold insulation systems in Elements of significant importance, such as LPG storage spheres, will

be studied specifically for each case, generating a procedure for each case that covers all the

items to consider in the project to be executed: preparation, materials, assembly, times, safety,

repairs, guarantees, etc.

A recommendation to consider for LPG storage spheres is that the purge and vent valve nipples be

insulated completely to the first valve, regardless of the sphere insulation thickness, to prevent

condensation in the segment out of the insulation that could cause corrosion.

2.2 Contractor Obligations

During the execution of the work described above, the Contractor shall consider the following,

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among other contractual obligations:

2.2.1 Engineering

Before starting the work, the Contractor must check that the documentation it has is approved for

construction in its latest version, and shall obtain the necessary data onsite to complete the

information received.

The data obtained according to the previous section shall be used to design the scaffolding

(certified by each worksite) best suited for each work.

2.2.2 Execution

The bidder shall include in its offer the standards specifying the form of execution of the insulation

for: vessels in vertical position, with a skirt-support or support legs, and vessels in horizontal

position, showing the different details on connections in bases, manholes, tubing, envelopes,

clamps, details of flange boxes, valves, joints, etc.

Unloading shall be performed in the area indicated by the CEPSA Supervisor of all the materials

and equipment needed to execute the work.

Before starting any work, all the elements, pipes, valves and supports that will not be insulated

must be protected appropriately, to prevent them from being damaged during the insulation work.

Similarly, elements which can be affected due to their proximity to the worksite must also be

protected.

The insulation must not be installed in wet weather without taking appropriate measures to keep

the material dry.

A protection from rain, snow, ambient humidity or plant fluids must be foreseen for the insulation

that has not been covered yet. If the insulation accidentally gets wet, it must be replaced before

installing the final cover.

2.3 Specific safety measures during the execution of the work

During the execution of the work related to this Specification, the following CEPSA Specifications

shall be complied with at all times:

ESP-4200-1 General Construction Conditions.

ESP-4200-2 General Conditions on Health and Safety in Construction.

CEPSA Procedures (PR).

CEPSA Specific Procedures (PRE).

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Specific regulations of each worksite.

The Contractor shall name a worksite safety manager, who shall attend the Safety Committee

meetings and accept any decisions reached by it.

3 MATERIALS, CHARACTERISTICS AND STANDARDISATION

3.1 Characteristics and standardisation of the materials supplied by the Contractor for

inclusion in the work

The insulation materials shall be chemically neutral, not liable to rot, fireproof and must not cause

any corrosion of the surfaces on which they will be applied.

Insulating materials shall be completely asbestos free.

Their chloride content shall be less than 10 ppm by weight.

Accessories used to attach the protection plates shall not produce any electrochemical corrosion

on them.

Materials used as insulation shall fulfil the properties specified below (thermal conductivity is

given in kcal/m2 h. ºC/m and temperature in ºC):

Mineral wool blankets

These are semirigid or rigid (depending on the density) felt blankets with fine rockwool fibres,

agglomerated with synthetic ligand with a metallic mesh sewn on them made of thin, flexible wires

of galvanised steel.

- Density 70 Kg/m3

- Optimum performance up to 550 ºC

Thermal properties:

Hot face Cold face λ___

100 ºC 20 ºC 0.034

200 ºC 30 ºC 0.045

300 ºC 40 ºC 0.055

- Density 100 Kg/m3


Thermal properties:

Hot face Cold face ___

300 ºC 40 ºC 0.052

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450 ºC 50 ºC 0.070

550 ºC 50 ºC 0.085

- Density 125 Kg/m3


Thermal properties:


550 ºC 50 ºC 0.078

600 ºC 50 ºC 0.083

700 ºC 55 ºC 0.110

Mineral wool panels

These are semirigid or rigid panels (depending on the density) formed by fine rockwool fibres

agglomerated with synthetic ligand.

- Density 70 Kg/m3


- Density 100 Kg/m3


The thermal properties of these two panels are very similar to those indicated above for blankets

with equal density.

- Density 144 Kg/m3.

- Optimum performance up to 700 ºC.

Thermal properties:


300 ºC 40 ºC 0.056

450 ºC 50 ºC 0.074

600 ºC 50 ºC 0.102

700 ºC 50 ºC 0.120

Mineral wool shells

These consist of complete cylindrical elements (moulded shell) or segmented elements, the latter

used for small diameter pipes, made of rockwool fibre agglomerated with phenolic resins.

-Density 90/105 Kg/m3

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-Optimum performance up to 600 ºC

Thermal properties:

Hot face Cold face __

65 ºC 20 ºC 0.035

150 ºC 30 ºC 0.040

350 ºC 40 ºC 0.053

500 ºC 50 ºC 0.073

600 ºC 50 ºC 0.090

Glass fibre blanket

These are flexible felt blankets of glass fibres without agglomerate, sewn on one face to a metallic

mesh support consisting of thin, flexible galvanised steel wires.

- Density 50 Kg/m3.


Thermal properties:


65 ºC 20 ºC 0.033

150 ºC 30 ºC 0.039

350 ºC 50 ºC 0.059

400 ºC 50 ºC 0.064

Glass fibre shells

These are rigid elements in the form of hollow cylinders made of concentric glass fibres, attached

by a heat-setting resin.

- Density 53/70 Kg/m3 (according to thickness and diameter).


Thermal properties:


65 ºC 20 ºC 0.031

150 ºC 30 ºC 0.036

250 ºC 30 ºC 0.044

Insulating cement

Formed by asbestos-free mineral fibres.


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Thermal properties:

Average temperature ___

200 ºC 0.12

400 ºC 0.14

600 ºC 0.17

Finishing cement

These are products similar to insulating cements, used as finishing on top of other insulation, such

as mineral wool. They shall be used according to the manufacturer's specifications.

Panels, segments and shells of polyurethane rigid foam (PUR)

- Density 32/4035 (+/-2) Kg/m3

- Performance from -170 ºC to 100 ºC (These materials perform well as cold insulators).

- Thermal conductivity: 0.020 kcal/mh ºC at 10 ºC

- Compression strength: 1.8 kg/cm2

- Permeability to steam: 30 (+/-10) g/m2 24H

- Fire performance: Autoextinguishing (ASTM D1692)

Panels, segments and shells of polyisocyanurate (PIR)

This material is practically identical in appearance and characteristics to polyurethane rigid foam (it

is a variant of it), but it has better fire and temperature resistance.

- Density: 40 (+/-2) kg/m3

- Working temperature range: -200 ºC to 110 ºC


- Compression strength: 1.75 kg/cm2

- Permeability to steam: 30 (+/-10) g/m2 24H

- Fire performance: M2 (UNE 23727)

Cellular glass plates, shells or segments.

It shall be chemically pure, completely inorganic and have no added agglutinating agents.

- Type: T4

- Density: 20 (+/- 10%) kg/m3.

- Performance from -260ºC to 430ºC


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- Compression strength: 7 kg/cm2 (mean value).

- Permeability to steam: None.

- Fireproofness: Fireproof. Class 0

Plates and shells of elastomeric foams

Thermal properties:


- 0ºC 0,035

Ceramic fibre blanket

Formed by centrifuged refractory fibres that are chemically inert, do not contain ligands and sewn

on both faces.

It has good insulating characteristics and can withstand very high temperatures (up to 1,500ºC).

They are usually used combined with mineral wool blankets.

- Density from 64 Kg/m3 to 160 Kg/m3

- Optimum performance up to 1,500ºC.

- Thermal properties:


200ºC 0.06

400ºC 0.10

800ºC 0.20

1,000ºC 0.27

For density 128 Kg/m3.

Calcium silicate panels and shells

It is a high-temperature insulating material with good mechanical strength.


- Optimum performance up to 950ºC.

- Thermal properties:

Average temperature (mean)_

0ºC 0.062

100ºC 0.066

200ºC 0.074

350ºC 0.092

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Removable flexible insulation

It can be used in exchanger heads, valves, flanges, etc. when indicated by CEPSA, based on

insulating mats.

Insulating mats are generally formed by a sandwich structure in which the inner face in contact with

the surfaces to insulate can be made of a fire retardant glass fibre fabric and the outer face can be

made of a fire retardant glass fibre fabric, generally siliconed, with a better performance with

respect to atmospheric agents. The insulating material inside consists of rockwool blankets or

ceramic blankets. The mats will be sewn with fire retardant thread and padded with washers and

wire made of stainless steel.

The types of materials used and the insulation thicknesses shall be defined in view of the working

temperatures.

Insulation of this type is designed onsite in view of the operations to perform and the shape of the

elements to be insulated.

The maximum diameter of pipes for which glass fibre shells can be used is 4”.

They will be attached with 20 x 0.8 stainless steel bands for carbon steel equipment and pipes, and

series 300 16 x 0.5 stainless steel bands for stainless steel equipment and pipes.

The wire used to hold the agglomerate shall be 1mm stainless steel wire.

The reinforcement metallic mesh shall be made of 25 x 0.9 mm hexagonal galvanised mesh.

All the elements joined to the equipment used to install the insulation and coat the plate (bolts,

spacer rings, attachment tabs, spacers, etc.) shall have anticorrosion treatment, whenever the

element to be insulated also has this treatment.

This operation shall be performed by a third party.

The insulating roof for mechanical or atmospheric protection shall be made of 3003 alloy

aluminium plate, with a minimum thickness of:

0.6 mm. for pipes 6” and smaller.

0.8 mm. for pipes 8” to 20".

1.0 mm. for pipes larger than 20" and equipment.

For tanks, the roof shall be made of 0.7mm corrugated aluminium plate with 76 x 19 mm

corrugation. (wave length x wave height).

The screws used to secure the insulating roof shall be stainless steel self-tapping screws, with

cylindrical head nº 8 4.2 mm diameter x 13 mm length and nº 10 4.8 mm diameter x 16 mm length,

according to the dimensions of the pipes and equipment.

To prevent galvanic pairs, a layer of bituminous paint will be applied on the inner face of the

aluminium plate used for the insulation roof, provided the insulating material used has an external

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galvanised metallic mesh or if there can be a metallic contact of the insulating roof and the pipe or

equipment to insulate.

As an alternative, a glass or plastic foil roof can be placed on the galvanised mesh, attachment

bands or metallic elements to prevent contact with the plate.

In general, contact between metallic materials that can lead to galvanic corrosion shall be

prevented.

The coating metal for pipes and equipment that must be fireproofed shall be of smooth stainless

steel plate with the following thickness:

- 6” pipes ................................ 0.4 mm.

- 8” to 20” pipes ..................... 0.5 mm.

- Pipes > 20” ......................... 0.6 mm.

- Equipment .............................. 1 mm.

For tanks, a corrugated plate with the same quality will be placed, with 0.5 mm thickness and 18/76

wave type.

When the insulation of an equipment must fulfil insulation and fire retardant missions (code I), the

insulation protection plate shall be of smooth stainless steel 1 mm thick.

For small irregular surfaces, insulating cement shall be used.

Other materials that can be used are:

- Adhesives.

- Materials for sealing joints.

- Silicones for watertight sealing of plates.

- Materials for steam barriers (Foster type or similar polyester - aluminium - polyester sheets).

- Adhesive tape reinforced with glass fibre or stainless steel bands for holding the insulating

materials.

- Stainless steel bands for external attachment of coating plates.

- Stainless steel screws.

- Etc.

The choice of materials will be made according to the working temperatures, the insulating material

used in each case and the materials of the elements to insulate.

3.2 Certificates required of materials to be supplied by the Contractor

All materials supplied by the Contractor shall have the corresponding certificates, issued by Official

or Approved Bodies, accrediting all technical characteristics required by this Specification.

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4 GENERAL CONSIDERATIONS

Measurement and payment regulations and tables with different work units are given in Annexes 3

and 4.

These measurement and payment regulations refer to a contracting method by Unit Prices that is

typically used in CEPSA; however, those established in Particular Contracts may take precedence.

5 INSPECTION AND TESTING

The CEPSA supervisor shall request the tests and trials considered appropriate according to the

corresponding articles of this Specification and the applicable Codes, Regulations and Standards.

During the work, the CEPSA supervisor can ask the contractor to present the official certificates of

the materials that accredit their compliance with the technical specifications of the offered

materials. These certificates of conformity shall be incorporated to the Quality Assurance

Documentation.

The CEPSA supervisor may require the contractor to obtain CEPSA approval of its Quality

Assurance Manual.

The contractor shall abide by the General Quality Control Regulations established by CEPSA.

6 GUARANTEES AND RESPONSIBILITIES

During the execution of the work, the Contractor will be responsible for compliance of its personnel

with the contents of this Specification and all documents referenced in it.

The Contractor shall request from CEPSA the specific documents issued when it does not have

them, and will not be released of its responsibility for not being familiar with these documents.

The Contractor shall be responsible for the perfect installation of the insulation materials, that is,

that both the external finishing and the materials do not deteriorate during the service, even when

continuously subjected to working conditions.

The insulation must not break due to contraction, expansion or discontinuity.

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ANNEX 1. INSULATION THICKNESS

Thickness (mm) Equipment Insulation (Heat Conservation):

WORKING TEMPERATURE ºC THICKNESS mm

Up to 1000C 60

1500C 80

2000C 100

2500C 120

3000C 140

3500C 160

4000C 180

4500C 200

5000C 220

5500C 240

6000C 260

6500C 280

If the equipment has internal mechanical mixers, the thickness selected shall be the immediately

higher one in the table.

Heat thickness studies for the different charts are based on the thermal characteristics of mineral

wool.

When the insulating material used is mineral wool blankets or panels, the following criteria shall be

followed:

WORKING TEMPERATURE DENSITY OF THE MATERIAL

up to 250 ºC 70 kg/m3

250 ºC to 400 ºC 100 kg/m3

400 ºC to 600 ºC 125 kg/m3

more than 600 ºC ceramic fibre/mineral wool mix

This criterion also applies to pipes (see following tables) for both heat conservation and personal

protection.

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Thickness (mm) Pipe Heat Insulation:

DIAMETER

NOMINAL

WORKING TEMPERATURE ºC. (≤)

100 150 200 250 300 350 400 450 500 550 600 650

1” and less 30 30 40 40 50 60 80 80 90 100 110 120

11/2” 30 40 40 50 60 80 80 90 100 110 120 130

2” 30 40 50 60 60 80 90 100 110 120 130 140

3” 40 50 50 60 80 90 90 100 120 130 140 150

4” 40 50 60 60 80 100 120 120 120 130 140 150

6” 50 60 60 80 80 100 120 130 130 140 150 160

8” 50 60 60 80 100 120 120 130 140 150 160 170

10” 50 60 80 80 100 120 130 140 150 160 160 170

12” 60 60 80 100 110 120 140 150 160 170 170 180

14” 60 60 80 100 110 120 140 150 160 180 180 190

16” 60 60 80 100 110 120 140 160 180 190 190 200

18” 60 60 80 100 120 130 140 160 180 190 200 210

20” 60 80 100 120 130 140 160 180 190 200 210 220

22” 60 80 100 120 130 140 160 180 190 210 210 220

24” 60 80 100 120 130 140 160 180 200 210 220 230

26” 80 80 100 120 130 140 160 180 200 220 230 240

28” 80 80 100 120 130 140 160 190 210 220 230 240

30” 80 80 100 120 130 140 160 190 210 230 240 250

32” 80 80 100 120 130 140 160 190 210 230 250 250

More than 32” 80 90 100 120 140 160 180 200 220 240 260 280

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Thickness (mm) Personal Protection Insulation:

PIPES

NOMINAL

WORKING TEMPERATURE ºC.

65-200 200-300 300-400 400-500 500-600 600-700

Less than 2” 30 30 30 30 40 50

2” 30 30 30 30 40 50

3” 30 30 30 30 40 50

4” 30 30 30 30 40 50

6” 30 30 30 40 40 50

8” 40 40 40 40 50 60

10” 40 40 40 40 50 60

12” 40 40 40 40 50 60

14” 40 40 40 40 50 60

16” 40 40 40 40 50 60

18” 40 40 40 40 50 60

20” 40 40 40 40 50 60

22” 40 40 40 40 50 60

24” 40 40 40 50 50 60

26” 40 40 40 50 50 60

28” 40 40 40 50 50 60

30” 40 40 40 50 50 60

32” 40 40 40 50 50 60

More than 32” 40 40 40 50 60 70

FLAT SURFACES 40 40 40 50 60 70

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Thickness (mm) Cold insulation (Polyurethane + aluminium plate):

PIPES

NOMINAL

WORKING TEMPERATURE ºC.

Up to 0 ºC 0 to -10 -10 to -20 -20 to -30 -30 to -40 -40 to -50

Less than 1” 40 40 50 60 70 80

1” – 1 1/2” 40 50 60 70 70 80

2” 40 50 60 70 80 90

3” 40 50 60 70 80 90

4” 40 50 60 80 90 100

6” 50 60 70 80 90 110

8” 50 60 70 80 100 110

10” 50 60 70 90 100 120

12” 60 70 80 90 110 120

14” 60 70 80 100 110 130

16” 60 70 80 100 120 130

18” 60 70 90 100 120 140

20” 60 70 90 100 120 140

24” and more 60 70 90 110 130 150

FLAT SURFACES 60 80 100 120 140 160

In normal conditions these thicknesses prevent condensation on the outer face.

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The technical calculation of insulation thicknesses (for heat conservation) included in the present

Annex 1 are based on mineral wool (density as per specification) with a shiny aluminium plate

coating, assuming a mean temperature of 200C , a wind speed of 4 m/s, the pipe in horizontal

position with losses due to accessories of 15% and guaranteeing that within the pipe diameter and

temperature ranges most common in Production Centres, as well as in equipment, no energy

losses occur greater than 350 W/m2 in the worst case.

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ANNEX 2. SCHEME OF PIVOTING WINDOWS FOR INSPECTION

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ANNEX 3. MEASUREMENT AND PAYMENT REGULATIONS

These measurement and payment regulations refer to a contracting method by Unit Prices that is

typically used in CEPSA; however, those established in Particular Contracts may take precedence.

Unit prices include but are not limited to the following costs:

The actions foreseen in chapters 2 and 3, as well as the inspections and tests covered in

chapter 5, with the guarantees and responsibilities specified in chapter 6 of this Specification.

Supply, assembly and disassembly of scaffolding and auxiliary means needed for the installation

according to the safety requirements.

Measurements shall be made on drawing. If the drawings are not detailed enough (missing details,

sections, dimensions, etc.) or there are discrepancies between what is indicated on the drawing

and what is done onsite (not due to Contractor errors, which it must rectify at its expense), the

Contractor is required to generate a sketch and submit it to CEPSA for approval, indicating the

work actually performed. This sketch will be used as a basis and justification of the certified

measurements, and shall be considered to be an as-built drawing.

The measurements shall be made in general according to the "Measurement regulations for pipe

and equipment insulation work" of the National Association of Insulating Material Installers

(ANDIMA), issue of June 2001 (included in the annex to this standard), with the following

exceptions and/or special cases:

Thermal Insulation of Equipment

The measurement shall be calculated based on the delivered drawings and according to

Chapter 9. EQUIPMENT, of the ANDIMA standards (June 2001). Measurement shall be made per

m2 to the equipment connection flanges, not allowing other increases considered in different

chapters of the ANDIMA standards (such as trimmings, elbows, etc). The price per m2 shall include

the execution of inspection windows.

In all cases, equipment shall be measured as equipment, not allowing measurement in the pipe

chapter even if the work to perform is equivalent.

Thermal Insulation of Pipes

The offers shall be per linear meter, considering the pipe diameter, the insulation thickness and the

insulating material used.

Unless otherwise specified in writing by the Supervisor, the material to use shall be the least costly

one that fulfills the characteristics of the line and the technical requirements of this specification;

the installation of any other material shall be at the Contractor's expense.

Measurements shall be made as per ANDIMA standards (June 2001) except at the following

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points:

In Chapter 1 PIPES, interruptions for cages and mats greater than 500 mm shall be discounted, as

these will be paid by the corresponding unit prices.

Pipes greater than 24” shall be considered as equipment and settled as established in the previous

section "Thermal Insulation of Equipment" and at the prices of chapter 1.2 of the price list. No

surcharges shall be allowed other than those specified in section 9 of the Andima Standards

(elbows and other figures shall be considered as irregular surfaces, straight pipes shall be paid per

m2 at no surcharge).

Valves that are embedded in the pipe insulation will be made without any surcharge.

In Chapter 2, ELBOWS, for the insulation elbows executed at 90º a surcharge of 0.5 m/unit shall

be applied regardless of diameter.

In Chapter 3, CURVES, the pipe segments with curvature radii different from normalised ones shall

be considered as curves, not elbows.

In Chapter 7, JOINTLY INSULATED PIPES, any construction details resulting from this

simplification will not result in any surcharge.

The exit of one or several pipes from the bundle shall have the surcharge equivalent to one or

more stub-ins.

In Chapter 10, OTHER ACCESSORIES, the surcharge for simple supports (10.1.1.2) shall be

applied by number of supports, not number of trimmings in the insulation (in the example of the

ANDIMA standard a surcharge of 1 support x 0.2 lm shall be applied instead of

3 trimmings x 0.2 lm).

The surcharge for covers (10.2.) shall be considered only for end covers of pipes ending in a cap,

but not in insulation interruptions such as for valves, flanges, etc.

The surcharge for flattening (10.3) is completely excluded and will be valued according to the

thickness of the unflattened segment.

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ANNEX 4. PRICE LIST

List of prices per unit for heat insulation of equipment:

ITEM DESCRIPTION UNIT PRICE

UNIT

1 SUPPLY AND APPLICATION OF HEAT INSULATION IN

EQUIPMENT

1.1 Insulation of equipment for heat and pipes

greater than 24”, based on 40 mm mineral wool

and 1 mm thick aluminium plate.

m2


greater than 24”, based on 50mm mineral wool


m2




m2




m2



and 1mm thick aluminium plate.

m2



and 1mm thick aluminium plate.

m2


greater than 24”, based on 100 mm mineral

wool and 1 mm thick aluminium plate.

m2




m2



m2

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m2




m2




m2




m2




m2




m2




m2




m2



wool and 1mm thick aluminium plate.

m2




m2




m2

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1.21 Ceramic fibres or ceramic fibres + rockwool,

thickness according to the project, for pipes with

diameter greater than 24" diameter and

equipment.

m2

1.22 Insulation of equipment and pipes larger than

24” with calcium silicate, glass fibre bandage

and a layer of Foster 4199 seal fass or similar

mastic, with a thickness according to the project.

m2

1.23 Cellular glass with thickness according to the

project for pipes greater than 24" diameter and

equipment.

m2

1.24 Surcharge (+) or Discount (-) for prices 1.1 to

1.20 due to using 0.7mm corrugated aluminium

plate with 76 x 19 mm corrugation (wavelength x

wave height) instead of 1mm thick smooth plate.

m2


1.20 for using 304 stainless steel plate 0.6 mm

thick.

m2


1.20 for using stainless steep plate 304 1 mm

thick.

m2


1.20 due to using 304 corrugated stainless steel

plate 0.5 mm thick with 76 x 18 mm corrugation

(wavelength x wave height) instead of 1 mm

smooth plate.

m2

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List of prices per unit for cold insulation of equipment:


UNIT

2 SUPPLY AND APPLICATION OF COLD INSULATION IN

EQUIPMENT

2.1 Insulation of equipment for cold and pipes

greater than 24”, based on 60 mm polyurethane


m2




m2




m2




m2


greater than 24”, based on 100 mm

polyurethane and 1 mm thick aluminium plate.

m2




m2




m2




m2




m2

2.10 Insulation of equipment for cold and pipes m2

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m2


2.11 for using 304 stainless steel plate 0.6 mm

thick.

m2


2.11 for using 304 stainless steel plate 1 mm

thick.

m2

List of prices per unit for heat insulation of pipes:


UNIT

3 SUPPLY AND APPLICATION OF HEAT INSULATION IN PIPES

3.1 Pipes up to 1" in diameter

3.1.1 Glass fibre 30 mm (t< 200ºC) lm

3.1.2 Rockwool 30 mm lm









3.1.11 Cellular glass with thickness according to

project

lm

3.1.12 Ceramic fibres or ceramic fibres + rockwool

(t>600ºC), thickness according to project

lm

3.1.13 Insulation with calcium silicate, glass fibre

bandage and a layer of Foster 4199 seal fass or

lm

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similar mastic, with a thickness according to the

project.

3.2 Pipes with diameter from 1 1/2" to 2"














project

lm



lm




project.

lm












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project

lm



lm




project.

lm

3.4 Pipes with diameter from 6" to 8"
















project

lm



lm




project.

lm

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project

lm



lm




project.

lm













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project

lm



lm




project.

lm

















project

lm



lm




project.

lm


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project.

lm



lm




project.

lm

3.9 Pipes with diameter greater than 24"

These pipes shall be considered as equipment

and shall be settled with the prices of chapter 1

and according to the measurement criteria for

equipment. Elbows and figures that must be

made in the insulation shall be considered

irregular figures, applying the corresponding

surcharge.

3.10 Miscellaneous

3.10.1 Mats

3.10.2 Cages

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3.10.3 % variation in prices due to use of galvanised

steel coating instead of aluminium

%

3.10.4 % variation in prices due to use of stainless

steel coating instead of aluminium

%

List of prices per unit for cold insulation of pipes:


UNIT

4 SUPPLY AND APPLICATION OF COLD INSULATION IN PIPES

4.1 Pipes up to 1" in diameter

4.1.1 Polyurethane 40 mm lm























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4.8 Pipes with diameter 24"





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4.9 Pipes with diameter greater than 24"

These pipes shall be considered as equipment

and shall be settled with the prices of chapter 2

and according to the measurement criteria for

equipment. Elbows and figures that must be

made in the insulation shall be considered

irregular figures, applying the corresponding

surcharge.

List of Administration prices for Pipe Assembly:


UNIT

5 ADMINISTRATION WORK

Administration Work shall be performed during

working hours, unless otherwise authorised by

CEPSA. These prices shall include the

machinery specific to the specialty (welding kits,

drills, grinders, etc.), tools and tooling, as well as

the repercussion of labour for categories above

Team Leader

5.1 NORMAL HOURS

5.1.1 Team Leader hour

5.1.2 Qualified worker hour

5.1.3 Assistant hour

5.2 EXTRA HOURS




5.3 HOLIDAY HOURS

SPECIFICATION FOR


EQUIPMENT AND PIPES

ESP-4205-1

Page 48 of 48

ESP-4205-1-R7-EN




5.4 SCAFFOLDING

5.4.1 Assembly and removal m3

5.4.2 Rental day

Supply of materials shall be performed

paying CEPSA for the cost as per invoice +

15 % B.I.

Date post:	01-Dec-2015
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ESP-4205-1-EN

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