heating main montage instruction1 - poliurs · anchor block from reinforced concrete around fixed...

Saules iela 8, Ozolnieki, Ozolnieku pagasts, Ozolnieku novads, LV 3018 Тel. 630 50600, 630 26033, fax 630 50230

www.poliurs.lv e-mail: [email protected]

HEATING MAIN

MONTAGE INSTRUCTION

CV4.04

2014

HEATING MAIN MONTAGE INSTRUCTIONS CV4.04

CONTENT

INTRODUCTION

1. PREINSULATED PIPE TRANSPORTATION AND STORAGE

2. TRENCH EXCAVATION AND PIPE PLACEMENT

3. CUTTING OF THE PREINSULATED PIPE

4. FIXED ANCHOR MONTAGE

5. PREINSULATED VALVE MONTAGE

6. HYDRAULIC TESTING

7. ALARM SYSTEM ASSEMBLING

8. INSTALLATION OF PREINSULATED PIPE JOINTS

8.1. Connection montage type 1.




9. END CAP AND ELASTIC SEAL MONTAGE

10. BACKFILLING OF THE TRENCH

11. WARRANTY OBLIGATIONS

ADDITIONS:

Addition Nr. 1. POLYOL. Extract from Safety data files.

Addition Nr. 2. IZOCYATE. Extract from Safety data files.

Addition Nr. 3. Security alarm montage inspection report.

Addition Nr. 4. Security alarm wire statement of acceptance.

Addition Nr. 5. Component norms for pipe connection.

0.1.


INTRODUCTION These instructions define basic regulations of "POLIURS" Ltd. industrially produced preinsulated pipes and its fittings for transportation, storage and heating main montage. Industrially preinsulated heating main construction shall be performed with accordance to project documentation. Montage work personnel shall be certified and familiarized with this instruction. While transporting, storing and performing montage on industrially preinsulated pipes and its fittings, take into account existing safety requirements, and also what is described in this instruction. Heating main connection insulation shall consist of chemical material polyol (component A) and izocyate (component B). Information about possible harm and action in case of direct contact with the material is provided in Addition Nr. 1 and Nr. 2. „POLIURS” Ltd. consults and train about industrially preinsulated heating main montage. Individuals that successfully complete training upon the completion receive a completion certificate. "POLIURS" Ltd. Quality and Environment management system is certified with accordance to LVS ISO 9001 and LVS ISO 14001 requirements that ensures produced product compliance with European standards:

LVS EN 253. District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene.

LVS EN 448. District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene.

LVS EN 488. District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene.

LVS EN 489.District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene.

0.2.


1. PREINSULATED PIPE TRANSPORTATION AND STORAGE

Lifting straps must be at least 60 mm wide. Preinsulated pipes should be stored in trapezoid or square shapes.

To prevent the polyethylene casing pipes from damage:

- during the piling works any wire ropes, chains, wires etc. should not be used; - pipes should be stacked on the even surface;

Fittings and small parts: couplings, foam pads, heat-shrinkable materials, components "A" and "B", wall entry rings etc. are stored separately in a place protected from direct sunlight.

Containers, where the components "A" and "B" are stored, are opened just before use.

Before welding ends of the service pipes, they should be kept closed with caps. If no end caps are available for example after the pipe cutting, end of the pipe should be closed with PE coat (diaphragm, film) or any other suitable material.

1.1.

wedge

Sand or wooden sleepers

pillar


2. TRENCH EXCAVATION AND PIPE PLACEMENT Industrially coated heating main construction works should be carried out according to design documentation and ”Poliurs” Ltd. heating main assembling direction CV4.04. Installation work personnel should be trained and certified, according to existing safety requirements.

A. Trench cross section of two-way pipe system B. D ouble pipe trench

Two-way pipe system trench cross section suggested dimensions:

PE casing øD, mm

Distance between pipes е, mm

Trench base width Аmin , m

Trench depth Н, m

90 150 0.7 0.65 110 150 0.7 0.65 125 150 0.7 0.65 140 150 0.8 0.65 160 150 0.8 0.70 180 150 0.9 0.70 200 150 0.9 0.75 225 200 1.0 0.80 250 200 1.1 0.80 280 200 1.1 0.85 315 200 1.2 0.90 355 200 1.3 0.90 400 200 1.4 1.00 450 200 1.5 1.00 500 200 1.6 1.10 560 200 1.8 1.20 630 200 2.0 1.30 710 250 2.2 1.40 800 250 2.4 1.50 900 300 2.7 1.70

1000 300 3.0 1.80

Pipe depth shall be chosen depending on surface loads, construction technology and public utility network location, possible ground agricultural cultivation etc.

2.1.


In case of major external top loads (for example when it is located underneath or is crossing auto road) over the pipes is placed reinforced concrete plate for better load distribution. Another possible protection for preinsulated pipes is putting protectors onto the pipe and pushing it through already existing corrosion resistant pipe. Protectors are base relief on PE casing, which protect the casing from damages while moving axially.

The length of the load distributor should exceed the length of the pipe section to be protected at least 1 m. Pipes before welding can be place directly in the trench or on supports above the trench. Pipes in the trench are placed on supports or on sand cushion.

If pipes are located above the trench then after the welding, hydraulic testing and placement of connecting sleeve pipes should be lowered into the trench using lifting straps.

2.2.


If main heating pipeline is deep enough, then fitting branch can be placed with an uplift and then trench will be deeper by H:

H = D + h, If the depth of the main heating pipeline is not deep enough, then T-piece should be diverted to the bottom and piece trench should be deeper then H.

In places where compensation pillows are placed, trench width should be increased, depending on pillow amounts and location. Trench widening shall comply with compensation pillow length and thickness.

For above ground main pipeline is from galvanized iron. During montage process pipes are held together by sliding support. Pipe is fixed to the sliding support with help of clamp and non-metallic padding.

The welder should be certified according to the LVS EN 287 standard and according to technology, which corresponds to LVS EN ISO 15607 demands.

Before steel pipe welding, on cover pipe should be put on cylindrical polyethylene (PE) sleeves, which are use for connection montage.

To avoid damage of burning of the isolation material, ends of the pipe should be covered or protected, for example with aluminum protectors. Protective materials should be removed right after the welding is done and sleeve should get moved over the joining line.

After welding of the steel pipe check PE sleeve before placing it over the joining line.

Before montage, while performing montage and after, it is required so that pipes from inside would be clean, dry and would not contain any foreign materials.

If after performing montage pipes require cleaning, then rinse them with water.

2.3.


3. CUTTING OF THE PREINSULATED PIPE If it is required to shorten the length of the preinsulated pipe or is required to have fixed length pieces, proceed accordingly:

1. On polyethylene casing mark

cutting place and from it on both ends (distance of 150 to 180 mm) clean section from insulation.

2. Cut the pipe in the marked place

along pipe circumference. With sloped ring cut the casing removable portion. Remove cut out casing section.

3. Remove carefully the foam from

the middle section with the knife so that wires stay untouched. Cut alarm system wires. Clean all foam insulation up to pipe casing. It is unacceptable to have any sort of damage done to the wires while cutting, pulling, etc.

Cut main heating pipe. Cutting with gas torch, it is required to protect casing pipe and polypropylene (PUR) isolation from over heating. Clean ends of the heating pipe from foam leftovers. Cut pipe at the designated spot.

3.1.

cut line

cut

cleaning section

perpendicular cut


4. FIXED ANCHOR MONTAGE Industrially produced fixed anchor consists from 2-3 m long preinsulated pipes, where in the middle, next to the work pipe, montages steel flap (cap, facing).

During montage procedure set up an anchor block from reinforced concrete around fixed support facing (flange, top). Concrete anchor strength secures montage steel frame

The fixed anchor undergo the great load during the pipeline lifetime, therefore it is needed to install them in the dense rammed soil.

For concrete placement use concrete kl. B25

Suggested anchor block sizes:

Steel pipe

∅ d, mm

Anchor size, m AxBxC

Armature diameter,

mm

Steel pipe

∅ d, mm

Anchor size, m AxBxC

Armature diameter,

mm

42 0,5 x 0,7 x 0,5 8 168 1,0 x 2,0 x 1,2 20 48 0,5 x 0,7 x 0,6 8 219 1,0 x 2,3 x 1,4 20 60 0,7 x 1,0 x 0,6 12 273 1,2 x 2,7 x 1,4 20 76 0,7 x 1,0 x 0,6 12 324 1,2 x 3,0 x 1,4 20 89 0,7 x 1,0 x 0,6 12 355 1,2 x 3,3 x 1,5 20

108 0,8 x 1,2 x 0,7 12 406 1,2 x 3,5 x 1,5 20 114 0,8 x 1,5 x 1,1 12 426 1,2 x 3,6 x 1,6 20

133 1,0 x 1,5 x 1,1 12 457 1,2 x 3,8 x 1,7 20

139 1,0 x 1,5 x 1,2 12 508 1,2 x 4,0 x 1,8 20

159 1,0 x 2,0 x 1,2 20 530 1,2 x 4,0 x 1,8 20

Pipeline operation could only begin after complete concrete solidification.

4.1.


5. PREINSULATED VALVE MONTAGE Isolated spherical valves, isolated valves with air or drain release/ drainage are installed into heat main the same as other fittings or straight pipe sections-after welding of the work pipe and isolating joining places. Assembling (fitting) diagram must insure convenient access to valve operating mechanism and safety against damages of the mechanism while operating. Version A. Version B.

Isolated valve montage is chosen from taking into account surface loads, engineering works, municipal network location, etc. Example A is used when surface loads are minimal (for example sidewalk, green territory), example B - at greater surface loads, for example road or freeway.

While performing montage works valves must be in open position, in that way minimizing probability of sealing damages. From the ground surface valve is opened and closed using T-shaped key, which come in the package. Reinforced concrete products and iron manhole covers „Poliurs” Ltd. does not provide.

After assembly of the line and rinsing of the valve it is recommended to perform first closing of the valve by turning T-shaped key in counterclockwise direction for 90°, afterwards closing the valve by turning the key in opposite direction.

5.1.


6. HYDRAULIC TESTING After the non-destructive testing of the welding; pipeline undergoes the hydraulic control, recommended in several steps, with pressure that exceeds maximum service pressure 1.3 times but not less than 16 bar.

Testing should be made with costumer presence and supervision. About testing results should be composed record (protocol).

Cold water should be used for hydraulic testing. The control pressure duration should take at least 15 minutes.

Testing pressure can not be decreased for more than 5% from initial testing pressure.

During testing, montage stitch cannot show any moisture.

If the leak is found, then appropriate welding place should be cut out and repeatedly welded. Hydraulic testing should be repeated. Testing section should be disconnected from already working pipeline using seals. The hydraulic testing should be carried out after welding of all connecting units, but before montage of the sleeves.

6.1.


7. ALARM SYSTEM ASSEMBLING If the casing pipe or the service pipe is damaged, there is a danger of humidity getting into the heat insulation layer, which could destroy the heat insulation of the pipes, as well as the untimely corrosion of the steel pipes.

The alarm system is installed in the preinsulated pipes and the joints, which enables to recognize the humidity in the heat insulation layer.

Two copper not isolated wires are installed in the heat insulation layer of the pipe on opposite sides of the pipe. Place pipes in such way that alarm copper wires are located parallel to each other.

Free wire ends that are not isolated should be protected against any damage.

According to project scheme, alarm system montage should be performed before isolation of the connection is pored between pipes. Montage of alarm system wires in unfavorable weather is forbidden.

1. Begin montage of alarm wires from one end, at the same time check resistance in already connected segments.

Before connecting to the united alarm circuit should check with megohmmeter each pipes and joints isolation resistance and resistance of the alarm system wires. The resistance of the insulation should be greater than 100 MΩ

2. Connect wires in the loop in such way

that they don’t come in contact with steel pipe and check it for resistance. Results should be registered in the montage journal. Journal example is available in the Addition Nr. 3.

7.1.


3. Continue checking wire resistance as

you connect more and more pipes into the loop. Continue recording your results in the journal.

4. In article 1 mentions insulation

resistance should be greater than 100 MΩ.

5. After checking for resistance connection of alarm system wires is performed in such

steps:

Cut straightened wire ends so that after connection they are not hanging. Wire ends of approximately 1-2 cm should be cleaned carefully with sand paper. Insert one end of the wire into the splicing pliers and compress it with special tongs. Insert and compress the other wire end. Connection is brazes with the special splicing sleeve. Connect wires at the other end of the pipe the same way.

For wires not to touch steel pipes they are secured with special wire holder. Place wire holders symmetrically and attach them to steel pipe with duct tape.

7.2.


6. Insulation, wire loop resistance and wire

connection check should be performed at every pipe connection. Record all readings taken in the journal.

100 m long wire resistance should be 1,3 Ω ±15%.

Assembled pipe network should not have resistance of less than 200 kΩ.

7. At the end of the pipe network where pipes are not going to be connected to further connected pipes should be connected in a loop and should be secured to the insulation, eliminating any chance of contact with steel pipe.

8. Control and measurement of alarm system wires is possible by connecting wires to the alarm box with the help of 3 lead connection cables. Cable main wire should be connected to the steel pipe with help of screw M8 and a wrench.

Alarm boxes are installed close to the pipes entry in the house and/or heating chamber.

It is advised to place shrinkable cap at the end of the pipe to protect PUR insulation and alarm wires. Also, connect joining cable to alarm wires underneath the cap.

Alarm system should be supervised at all time with acquired CWA 6000 systems (Sweden) or other similar type equipment. Impulse reflection method is used for specific incident place determination. Such equipment is available at „Poliurs” Ltd.

After alarm system montage and testing the supervisory alarm acceptance act should be filled out (for act example see Addition Nr. 4). Keep in storage installation act and journals.

7.3.


8. INSTALLATION OF PREINSULATED PIPE JOINTS After service pipe welding, alarm system montage and performed work inspection, preinsulated pipe and/or joint connection montage are left these main stages:

- casing pipe end connection with sleeves; - sleeve tightness and testing; - Polyurethane (PUR) foam thermal insulation creation.

These stages may vary with different connection types.

Type 1 – simplest method for buried pipeline joining montage. Cover joint area with a PE sleeve, cover the sleeve and casing pipe with heat-shrinkable tape, check sleeve tightness (if it is required), pour in PUR mixed components.

Type 2 – technique, that insures double insulation for buried pipeline joint montage. Cover joint area with heat-shrinkable PE sleeve, additionally secure ends with shrinkable tapes. Insulate with pouring PUR components inside the sleeve or use PUR half casings.

Type 3 – use for pipeline connection above ground montage. Connection area cover with aluminum foil and removable PE casing, pour in PUR components, remove casing and seal insulation foam with one wide heat-shrinkable tape. Cover connection area with casing - aluminum foil sheet.

Type 4 – this method is used in case joint needs to get fixed, PE casing is not placed on before welding, or free space for PE casing is not long enough to move aside it from the connection. It is similar to Type 3, only for below ground pipelines do not use galvanized casing.

While performing montage connection it is required to take into account general safety requirements. It is required to work with appropriate work instruments, in proper work clothes, with protective eye wear and appropriate work gloves.

Components "A" and "B" until they are used should be kept in protected from sunlight space at the temperature +20°±5°C. It is advised to use electronic mixer for mixing the components together. If PUR component come in direct contact with unprotected areas of skin then that area needs to be immediately rinsed with warm water (please view attached safety procedures).

If joining montage is made during bad weather conditions, then work place should be covered with water proof cover. Joining montage is not recommended at the temperatures lower than +5°C. In special cases, if the surrounding temperature is lover than critical temperature, it is possible with use of technical methods to insure proper foam forming, for example:

- supply hot water through pipeline; - preheat installation area with electric heaters or soft gas flame; - store for a long time components in room temperature and act fast not letting it to

cool down until filling in moment.

In case of unfavorable weather it is advised to try the foaming of the components before using them to see how well and how fast the foaming is and if it will do the job of filling of the needed diameter sleeve.

8.1.


8.1. CONNECTION MONTAGE. TYPE 1. Necessary materials:

- PE sleeve, - heat-shrinkable tape - 2 pieces, - seal patch - 2 pieces; - PUR foam components "A" and "B"; - round (FOPS) patch - 2 pieces; - cork for air release -1 pieces; - materials for alarm system installation, if planned.

Montage equipment and instruments: - gas torch; - soldering burner (for alarm wires); - measuring bowl – 2 pieces; - bowl for mixing and filling of components; - mixer; - sand paper (rough on fabric base); - degreasing liquid (for example: acetone); - brush or rag; - goggles, gloves; - hand drilling machine; - drills: Ø25 mm, Ø3 mm; - megahommeter for alarm testing.

If the joint seal check is scheduled, then additional tools are needed: - tightness control device (manometer); - Air-pump (tire pump can be used).

Montage sequence: 1. If pipe end insulation is damaged, cut damaged part. Check and connect alarm wires.

2. PE casing that is located on one of the preinsulated pipe, symmetrically push onto the connection area.

3. Drill a hole in PE casing at the distance of

Ø25mm ~50 mm from end of insulation. 4. Drill another hole in PE casing in 3 mm

diameter (for air release) at the distance of ~50 mm from the other side of end insulation.

8.1.1.


5. Make sure that sleeve and insulation

ends are dry, clean and not greasy. If necessary, dry, clean and remove all grease at the distance of B+50+50 mm (B – length of heat-shrinkable tape) and polish with sand paper. Clean the rest of the polyethylene particles.

6. With every casing pipe diameter D cut heat-shrinking tape with length L according to

the table:

D,mm 90 110 125 140 160 180 200 225 250 280 315 355 400 450 500 560 630

L, m 0,39 0,45 0,50 0,55 0,61 0,68 0,75 0,84 0,92 1,02 1,14 1,27 1,43 1,59 1,77 1,97 2,20

At one end of the tape cut sloped corners.

7. Using propane-butane flame, preheat up to 60°C area that was previously treated with sand paper.

8. Removing protective film from the

heat-shrinkable tape place cut side on the sleeve end in a way that 40% from tape width would be located on the preinsulated pipe and 60% would be on the sleeve.

8.1.2


If "DualSeal" heat-shrinkable tape is used, then it should be placed according to the marking on it. Place tape at the connection area exactly at the connection joint, so the distance covered would be the same on the pipe and on the sleeve. Heat up tape end with a gas torch for about 1-3 seconds and press against PE surface. Without pulling, place tape along circumference of the pipe and at the same time removing protective film. Heat up the end of the tape for about 1-3 sec. and press it against the surface at the distance of ~50 mm on to the tape.

9. Place patch on the tape stitch (with crossings on the surface). Heat it up with weak flame and press hard on it, starting from one end and moving to the opposite side.

8.1.3.

Marking


10. Begin shrinking of the tape from the

middle towards one end, towards sleeve end. Heating up with weak flame along circumference of the tape, shrinking one half of the tape. Let it cool down for approximately 2-3 minutes. At this time place tape at the other end of the sleeve, and performing steps 7-10.

"DualSeal" heat-shrinkable tape does not need any time for cooling.

Next, heat other side of the tape that is located on the preinsulated pipe.

That way there won’t be any air trapped underneath the tape.

Melt glue is an indication when tape temperature is sufficient.

If "Dual Seal" heat-shrinkable tape is used then heat it up until green indication vanishes.

It is recommended to perform checks, push tape with finger in such way, that wrinkles form, that after heating up vanish, forming smooth surface. Perform same technique in shrinking tape at the other end of the sleeve.

Tape shrinking is performed acceptable, if after correct pipe surface preparation and heating of the tape, it is pressed tight around joint circumference; glue got uniformly squeezed out from the tape. No bubble can be seen nor not enough heated areas.

8.1.4.


Fill sleeve with PUR foam components only after cooling of the sleeve down to the surrounding temperature.

11. In separate containers pour components “A" and "B" in quantities that are specified in

Addition Nr 5 tables.

Pour component "A" and then component "B" in one container and for not longer than 15 minutes mix rapidly the component. Within 30 seconds pour mixed component in the drilled hole, Ø 25 mm in diameter. If components "A" and "B" are in separate containers and are for only one connection, then pour component "B" into the container with component "A", mix rapidly and pour into the drilled hole with diameter of Ø 25 mm.

12. Close drilled hole with PE cork.

13. After PUR foam hardening (not earlier

than in 2,5 hours) cut cork top part, clean PE sleeve surface from dust and foam remains around drilled holes ( ~70 mm in radius). Heat up to 60°C using weak flame area around cork for the FOPS patch.

14. Heat sticky side of the patch for about 1-

3 sec. and press it against the cork. Heat the patch with weak flame until green indicator on the patch is gone.

It is not allowable for glued patch to have any air entrapped underneath it or have corners bent up. Around the patch side wide region of glue should be seen.

8.1.5.


Check on air tightness of the connection.

In case when connection needs to be checked for air tightness, then such steps should be performed: 1. Complete montage steps 1-3; 5-10. Exception: don’t drill an air release hole

in Ø3 mm!

2. Screw in special nozzle with manometer, attach air pump. Pump pressure in the sleeve up to 0,2 ÷ 0,5 bar. Keep track of manometer readings. Proceed with the sleeve montage only if pressure drop in 10 minutes is not noticeable. Use soap water for determination of air leakage.

3. Install testing device. 4. Complete montage steps 4; 11-14.

8.1.6.


8.2. CONNECTION MONTAGE TYPE 2.

Necessary materials: - heat-shrinkable PE sleeve; - heat-shrinkable tape - 2 pieces; - sealing patch - 2 pieces; - A and B components or PUR half casing – 2 pieces; - coupling tape (if PUR half casing are being used); - duct tape; - PE cork - 2 pieces; - materials for alarm system installation (when planned).

Montage equipment and instruments: - gas torch; - soldering burner (for alarm wires); - measuring bowl - 2 pieces; - bowl for mixing and filling of components; - mixer; - sand paper (rough on fabric base); - degreasing liquid (for example: acetone); - brush or a rag; - protective goggles and gloves; - hand drilling machine; - drills: Ø27,5 mm, Ø25 mm and Ø3 mm; - heat insulating tape (for example from glass fiber) for sleeves with diameter ≤

250 mm; - PE electronic cork welder; - hand saw (if PUR half casings are being used); - megahommeter for alarm system testing.

Montage sequence:

1. Before pipe welding make sure that sleeve complete PE sleeve package is located on one of the preinsulated pipe. If insulated at pipe ends is damaged (wet), cut damaged part. Check and connect alarm wires.

2. Dry PE pipe ends with propane flame (30°C - 40°C). Pipe casing should be dry, clean and can’t be greasy.

Place heat-shrinkable sleeve above the connection, symmetrically against PE pipe ends and make marks on the PE casings.

3. Cut two connecting tapes. Stick them on

pipe casing at the distance of 1÷2 cm from the previously marked lines, toward pipe end so the sleeve would completely cover the tape. Remove protective film from the tape.

8.2.1.


4. Place sleeve above the connection and

symmetrically to PE pipe ends on to the tape. Remove sleeve protective film.

5. Drill a hole in PE casing at the distance of

Ø25 mm ~50 mm from end of insulation. 6. Drill another hole in PE casing (for air

release) at the distance of Ø 3 mm ~50 mm from the other side of end insulation.

7. Wrap around the pipe and sleeve with

heating insulated tape areas that are not supposed to be heated up. With weak yellow part of the flame make sure sleeve sits down on the PE casing. At first heat up equally around the circumference for about 1-2 minutes one sleeve end. Repeat the same procedure at the other end of the sleeve until PE is completely tight against PE pipe casing.

Sleeve montage is performed well, if:

- sleeve ends are densely attached to the PE pipe casing;

- can’t see any air openings.

8. Perform heat-shrinkable tape montage with accordance to connection montage Type 1, steps 5 – 10.

9. Perform sleeve filling with PUR foam component according to connection montage Type 1, step 11.

8.2.2.


10. After filling up the sleeve with PUR foam

components close drilled hole with cone-shaped aluminum plug, screwing it in about 1.5-2 turns.

11. After PUR foam hardening (~5 min.) screw out cone-shaped aluminum plug and using cleaning rag remove carefully foam from the plug. Re-drill hole from Ø3 mm to Ø25 mm with depth to 15-20 mm. Opening for poring in the PUE foam component also deepen to 15-20 mm. Clean openings from hard foam pieces. Clean foam waste.

12. Use drill with diameter Ø27.5 +0,5 mm to make previously drilled hole corners smooth and clean, without any excess material.

13. Prepare PE cork montage equipment, previously heating up the equipment up to 250°C and connecting heating equipment to 220V powe r source. Montage equipment is ready to be used when pilot light on the equipment goes off. PE cork and drilled hole needs to be clean and without any dust.

14. Insert cork into the cone-shaped nest of PE cork equipment and heat up ~ 30 sec.

15. Insert cone-shaped extension in one of

the drilled hole in the sleeve. Heat element is hot enough when plasmas around the hole is starting to melt.

16. Remove electric heater from the opening in the sleeve and at the same time remove heated up cork using flat pliers and insert it into the preheated opening. Keep cork under the pressure until it is stable.

Cork montage is performed well if stitch around the cork border is even.

Perform the same procedure with the second opening in the sleeve.

17. Cut cork knobs (if possible).

8.2.3.


Using PUR foam half casing (for example: at low surrounding temperatures) montage sequence is following:

1. Perform steps 1-2 in above described Type 2.

2. Cut PUR casing up to the connection

length.

3. Process pipe casing ends with sand

paper and clean from dust for at least 150 mm into the casing. Insert casings into the connection. It should fit tightly between preinsulated pipe ends.

4. Heat up 150 mm of pipe casing using gas

torch up to the temperature of 60°C.

5. Cut coupling tape. Wrap tape around PUR casings so that it is completely covered.

6. Heat the tape so that it completely and firm covers PUR casings.

7. Cut and place two duct tape pieces on the coupling tape and pipe casing so that coupling tape ends are completely sealed. Push sleeve on the PUR casing at the connection and remove protective film.

8. With weak yellow part of the flame make sure sleeve sits down tight on the tape. First, heat one side of the sleeve from middle to end. Repeat the same process with the other side of the sleeve and then alternating heating both sides until sleeve is completely and tightly is stuck to the tape.

Sleeve montage is performed well, if sleeve ends are densely attached to the PE pipe casing and no air openings can be seen.

Thin heat-shrinkable tape montages perform with accordance to description in connection montage Type 1 steps 5-10.

8.2.4.


8.2.1. ELECTRO-WELDING CONNECTION MONTAGE

Necessary materials: - heat-shrinkable PE sleeve; - welding bands – 2 pieces; - A and B components – 2 pieces; - PE cork - 2 pieces; - materials for alarm system installation (when planned).

Montage equipment and instruments: - electro-welding machine with steel clapms and electric cable; - gas torch; - soldering burner (for alarm wires); - measuring bowl - 2 pieces; - bowl for mixing and filling of components; - mixer; - sand paper (rough on fabric base); - degreasing liquid (for example: toluol); - brush or a rag; - protective goggles and gloves; - hand drilling machine; - drills: Ø27,5 mm, Ø25 mm and Ø3 mm; - PE electronic cork welder; - megahommeter for alarm system testing.

Montage sequence:

1. Centralize the shrinkable casing over the joint area and mark the ends of the casing all the way around the jacket pipe. Grind the ends with an emery cloth – grain 40. Clean the jacket pipe with ethyl alcohol after grinding.

2. Mount the copper welding band around the jacket pipe, app. 30 mm from the casing mark. Ensure a distance of 6-8 mm between the band ends.

3. Place casing over the welding bands. Bend the terminals 45° away from each other.

8.2.5.


4. Drill a hole in casing at the distance of 50 mm from end of insulation for foaming of the components. Use it for pressure testing the casing after welding process is complete.

5. Shrink the casing on the jacket pipe, 100-120 mm, use a 40-60 mm burner head and ensure that the flame is blue with yellow tip

6. Casing is ready for the welding.

7. Place welding band over previously shrinked casing.

8. Bend the terminals at 45 away from each otherBandāžas savienojuma vietai jābūt pagrieztai aptuveni par 30° attiec ībā pret strāvas pievadiem.

9. Connect the cables from the welding computer to the welding band termināls. If both welding bands are to be welded at the same time connect the overjumper cable.

10. After choosing the correct jacket pipe dimension on the welding computer and pressing START, the welding is done automatically.

11. Pressure test the casing at 0.2 bar over-pressure and test with a liquid lead detector.

12. Drill additional hole for air release and if necessary, additional hole for foaming.

13. Foaming of the joint with PUR components should be performed according to connection montage Type 1 step 11 and Type 2 steps 10-17.

8.2.6.


8.3. CONNECTION MONTAGE TYPE 3. Apply when heating main connection montage is performed above ground (pipe casing is from galvanized lead).

Necessary materials:

- aluminum foil casing; - wide heat - shrinkable tape -1 piece; - long patch - 1 piece; - PUR foam components "A" and "B", (or PUR foam half casings); - galvanized tinplate casing -1 piece; - galvanized casing strap - 2 pieces; - scotch tape; - materials for alarm system montage (when planned).

Montage equipment and instruments: - removable PE pipe shaped casing – corresponding to pipe casing diameter; - standard strap - 2 pieces; - gas torch; - hand drilling machine; - drills: Ø25 mm and Ø3 mm; - measuring bowl -2 pieces; - bowl for preparation and filling of the component; - mixer; - sand paper; - degreasing liquid (for example acetone); - broom or a rag for cleaning; - protective goggles and gloves; - hand saw (if PUR foam half casings are used); - soldering unit for alarm wire montage; - megahommeter for alarm system testing.

Montage sequence: 1. If insulation at pipe ends is damaged or wet, cut damaged part. Check and connect

alarm wires, if alarm system is anticipated. 2. Place aluminum foil around pipe connection area, shape cover – casing. Bend casing

edge at least 50 mm in one direction. Place aluminum casing symmetrically to pipe casing with wide cut, not less than 50 mm. Using scotch tape secure all the connection points in aluminum casing and its connection to pipe casing.

3. Place removable PE casing on top of the aluminum casing and secure it to pipe casing using straps.

4. Drill in removable PE casing and aluminum casing an opening of Ø25 mm for pouring in the components and Ø3 mm for air release (see connection montage Type 1, step 3 and 4). When performing further montage, through PE casing drill openings in aluminum casing, that way only one PE casing will be used throughout the montage process (for one diameter).

5. Prepare a mix of components "A" and "B" and pour in the drilled opening of Ø25 mm (see connection montage Type 1, step 11).

6. In order to reduce PUR foam from leaking out, close Ø25 mm opening in PE casing, for example with self made wooden plug or special aluminum plug with cone-shaped end.

7. After 15 min. remove PE casing and wait until the end of PUR reaction (~2,5 hr). 8.3.1.


8. Make sure that aluminum casing width A

and pipe casing ends 2x100 mm are dry, clean and are not greasy. Clean, dry and de-grease if necessary.

9. With every casing pipe diameter D cut

heat-shrinking tape with length L according to the table below.

Cut sloped corners at one end of the tape.

D, mm

90

110

125

140

160

180

200

225

250

280

315

355

400

450

500

560

L, m

0,35

0,42

0,46

0,51

0,58

0,64

0,70

0.78

0,86

0,96

1,07

1,20

1,34

1,50

1,66

1,86

10. Heat aluminum casing and previously

cleaned pipe casing area using propane butane flame up to temperature of ~60°C.

11. End of the heat-shrinkable tape, where

corners are sloped, remove protective film, heat up for about 1-3 sec. and press against aluminum casing.

Without stretching, place tape around the casing at the same time removing the rest of the protective film.

Heat tape straight part for about 1 – 3 sec. and press against the casing at ~ 50 mm over the tape beginning.

8.3.2.


12. Place a patch on the heat-shrinkable

tape stitch. Heat it up with weak flame and press it hard against the tape, starting from one end.

13. Start shrinking of the tape from the

middle of the tape toward one of the ends, heating along circumference of the tape using weak flame. After one end is tight proceed to the other side of the tape.

That way there won’t be any air trapped underneath the tape.

Melt glue is an indication when tape temperature is sufficient.

It is recommended to perform checks by pushing tape with finger in a way that wrinkles are formed, and after sufficient heating they vanish, forming smooth surface, then process was performed well.

14. Additionally, cover connection area with

galvanized tinplate casing and secure it using galvanized casing straps.

When using PUR foam half casings, montage procedure is following:

1. Complete step 1 in described above montage instruction.

2. Cut PUR casing up to the connection length.

3. Pipe casing ends dry and clean from dust for span length of 200 mm. Insert casings into the connection. It should fit tightly between preinsulated pipe ends

4. Cut wide heat-shrinkable tape and perform step 9 described above instructions.

5. Heat casing pipe ends with weak propane butane flame up to ~ 60°C.

6. Complete steps 11 – 14 in described above montage instruction.

8.3.3.


8.4. CONNECTION MONTAGE. TYPE 4.

Apply for underground pipeline, if connection needs to be repaired, PE sleeve are not placed before welding, or pipe section is not long enough for PE sleeve position before welding of the connection. Used materials, equipment and instruments are the same as in connection montage Type 3, with the except for aluminum foil in which place is used PE sleeve where longest side is cut. Connection montage sequence:

1. If pipe ending insulation layer is damaged, cut damaged part. Check and connect alarm wires, if alarm system is planned.

2. Place PE sleeve above pipe

connection area, positioning it symmetrically to pipe casing ends. Make sure that outside ends of the sleeve are sloped. Tightly secure sleeve on casing pipes with tension belts.

3. Drill openings in the sleeve for pouring in PUR components and air release (see

connection montage Type 1, steps 3 and 4). 4. Prepare a mix of components "A" and "B" and pour it into Ø25 mm opening. Close

opening with air release cork (see connection montage Type 1, steps 11 and 12). 5. Cut by previously determined length L wide heat-shrinkable tape, corresponding to pipe

casing diameter. Cut sloped corners at one end of the tape (see connection montage Type 3, step 9).

6. After PUR foam hardening (~2,5 hr) cut air release cork knobs. Remove straps. 7. Clean connection area from hard PUR foam waste. PE sleeve and pipe casing ends

clean at the distance of ~100 mm, dry and de-grease. Previously cleaned area work process using sand paper.

8. Processed with sand paper area heat using propane butane up to ~60°C. 9. Perform wide heat-shrinkable montage according to connection montage Type 3, steps

11 – 13.

8.4.1.


9. END CAP AND ELASTIC SEAL MONTAGE Heat-shrinkable end caps are used in order to seal PUR insulation, after entering buildings, chamber or canal. Montage sequence:

1. Clean steel and casing pipes. Clean steel

pipe with metal brush and casing pipe with sand paper.

2. Using weak flame from gas torch heat up

both surfaces up to at least 60°C, checking surface temperature with appropriate indicator.

3. In cases, when pipe has alarm system

wires and they need to be lead outside of end cap, then smear sealing mastic on the wires and let them pass between pipe casing and end cap (in no way through the cap). If alarm wires are not supposed to be lead out but connected in the loop, then place wires in such way that they won’t come in contact with steel pipe or the pipe casing. Place end cap as close to the pipe insulation as possible.

9.1.


4. Place end cap tight on the pipe casing

uniformly heating along the circumference of the sleeve. Allow for end cap to cool down before starting on shrinking the other side of the cap. If needed, squeeze out air bubbles from underneath the cap. To convince that end cap is heated up to the right temperature, push cap with finger so wrinkles form and if it is hot enough then wrinkles will vanish, forming smooth surface.

End cap should be tightly pressed against both of the pipes. No air bubbles, burn, nor peeled off edges should be seen under the end cap.

Elastic seal is use on pipes when entering foundation in buildings or when entering wells. It stops ground water from entering inside along with the pipe. Allows pipe to freely move sideways. It is produced from special rubber type material that is age resistance.

Montage sequence: 1. Insulated pipe surface should dry and clean. 2. Pull elastic seal onto the pipe casing and place it in a way that it will be directly in

the middle when placed in the foundation or in the wall. 3. Cover both sides around elastic seal of the pipe casing with 2-3 layers of non-

bituminous material. That way separating pipe casing from concrete. 4. Cast in concrete previously made opening in foundation or in the wall.

Note: if pipe diameter DN ≥ 400, then it is advised to place two elastic seals on each of the pipes.

9.2.


10. BACKFILLING OF THE TRENCH Place pipes on compressed sand foundation, keeping track of spacing between pipes and spacing from trench sides – see 2nd section. Place compensation pillows according to designed specification (documentation). Remove from the trench temporary supports and any other objects. Fill up the trench by adding layers gradually. Before adding following layer, first compact previous one. Maximal thickness of one layer if non mechanical compaction is performed – 150 mm, if mechanical then 300 mm. Depending from designed thermal deformation compensation method, available 2 (two) trench backfilling versions:

1) fill up the trench when pipes are in cold state; 2) previously loading (heating) pipes before filling of the trench.

1st version First, cover pipes from the sides and gap between the pipes, until level of layer doesn’t reach 100 mm above pipes. Use sand that does not contain any rocks, metal pieces, floral leftovers, soil and stone pieces. Perform non-mechanical compaction. Place caution tape at the designed depth (not less than 100 mm about preinsulated pipes) and secure it by covering with sand.

For preinsulated pipes with diameter ≥200 mm is recommended to place caution tape above every pipe, heating and return. If preinsulated pipe diameter is <200 mm – place one caution tape above both of the pipes. The rest of the trench fills with earlier digged out soil. Mechanical compaction can be performed after trench filling is 200 mm above preinsulated pipe.

If compensators or fixed anchors are used then no special backfilling demands are required. 2nd version

In section where thermal pressure is present, compact that area with sand up to the center of preinsulated pipes (see drawing). Mechanical compaction is not allowed. Heating main needs to be completely filled up and compacted after the designed temperature is reached.

If heating main is planned to be pressurized using base compensator, then cover pipes and compress the trench while pipes are in cold condition; ends need to be left free where thermal deformation compensation is predicted – compensator and heating main turns within 60°÷90°. When heating main is heated up to t he designed pre-pressurized temperature and base compensator finished working then weld the compensator out from the pipe line. Fill and compact remaining part of the pipe line while keeping pre-pressurized temperature. After filling up of the trench perform environmental improvements to the area where pipeline is buried: plant trees or other green plants, street or sidewalk restoration, etc.

10.1.

Ground level


11. WARRANTY OBLIGATIONS "POLIURS" Ltd. ensures, that industrially preinsulated pipes and fittings fail-safe life is 5 (five) years, if Costumer fulfilled these conditions:

• taken into account transportation, storage, montage and exploitation requirements

that are explained in this instruction; • ensured and documented heat carriers parameters:

- operating pressure............ ≤16 atm. -operating temperature........ ≤150 °C -salt content......................... <3000 mg/l -pH....................................... 9,5 – 10 -free oxygen……................. not acceptable

‘’POLIURS” Ltd. warranty on alarm system wires is effective, if customer filled out and kept alarm system montage testing act and alarm system acceptance acts following examples on page Addition 3 and Addition 4. "POLIURS" Ltd. issues warranty certificates on its products.

11.1.


Addition Nr 1

POLYOL (Component A) Extract from Safety information pages VI4.01

1. Component parts: 4-Methyl, 1-3 dioxolan-2-ones; CAS - 108-32-7; content 1-5% Benzyl dimetilamins; CAS - 103-83-3; content 1-3%

2. Risk identification: Product isn’t qualified as hazardous.

3. Influence characteristics: can cause irritation of respiratory ways, skin and eyes when come in contact with matter, when swallowed – feeling sick, vomiting, discomfort.

4. Work safety requirements: Hand protection: rubber gloves Eye protection: protective glasses with side protection. Body protection: closed work clothes. General safety and hygiene measures: store away from food and beverages, pet

food and drinks. It is forbidden to eat, drink or smoke at the work place. Before breaks and after shift end clean hands and face.

Storing: separately away from food and pet food. Keep in closed and dry space at temperatures +15÷30oC. Do not allow any unsanctioned access and unforeseen mixing with isocyanat.

5. First aid: General suggestions: remove all clothing that got soaked with this matter. When inhaled: If problems occur after breathing in of the vapor, then seek fresh air

or medical attention if discomfort is present. When come in contact with skin: Carefully clean with soap and water.

When come in contact with eyes: Razing the eye brows clean eyes at least 15 minutes with big amounts of water, seek medical attention if discomfort doesn’t end.

When swallowed: do not cause vomiting. Drink a lot of milk or water, seek medical attention.

Do not allow groundwater penetration. Absorb leaked matter using sand or similar material. Hand over waste according to local requirements.

6. Fire safety procedures: Product is flammable and is not easy combustible. For putting out fire use foam or

powder. After putting out fire cool down with water containers and not completely burned component. Use breathing device while putting out fire.

7. R-phrase: R10 - flammable; R20/21/22 - hazardous to inhale, when comes in contact with skin

or when swallowed. R34 – causes burns; R36 – irritates eyes; R52/53 – toxic for water organisms, can cause long term negative impact in water environment.

8. Additional information: Safety information data page VI4.01.


Addition Nr 2

ISOCYANAT (Component B) Entry from Safety information pages VI4.02

1. Chemical composition: Difenilmetān – 4,4’ – diizocianāts, CAS Nr. 101-68-8

2. Influence characteristics: R20 – hazardous to inhale, R36/37/38 – irritates eyes, respiratory system and skin, R42/43 – when inhaled or come in contact with skin can cause high sensitivity.

3. Work safety requirements: Hand protection: moisture impervious gloves. Eye protection: safety glasses. Body protection: protective clothes, closed work clothes. General safety and hygiene measures: store away from food and beverages, pet

food and drinks. It is forbidden to eat, drink or smoke at the work place. Before breaks and after shift end clean hands and face.

4. First aid: When inhaled: don’t allow for patient to worry or move, take him to fresh air. If

possible, perform artificial breathing with oxygen, perform medical aid. Symptoms can occur after a period of time.

When came in contact with skin: immediately remove saturated with chemical clothes, wash body with water and soap or polypropylene glycol (with Lupranol* 1000) or corn oil.

When came in contact with eyes: wash well with water, perform medical aid. When swallowed: immediately rinse mouth and then drink a lot of milk and water,

don’t cause vomiting, call the doctor. Note to the doctor: treat after visible symptoms, there is no known antidote.

5. Fire safety procedures: Appropriate resources for putting out fire: dry nonflammable agent, foam, carbon

dioxide (CO2), spraying of water in big quantities. For putting out flame: carbon monoxide (CO), carbon dioxide (CO2), nitric oxide,

hydrogen cyanide, izocyanate. Special protection equipment: use isolated breathing device and protection clothes.

6. Additional information: Safety information data page VI4.02.

Xn

Hazardous


Addition Nr 3

SECURITY ALARM WIRE MONTAGE INSPECTION REPORT This documentation is filled out during alarm wire montage. Take measurements from one end of pipeline and then gradually go up by pipe section or by a fitting.

Customer:……………………………………………………………………................……………………….

Site address:…………………………………………………………………………..............………………..

Montage performed (position, surname, company)……………………...........…………………………….

Pipeline stage identification

Preheated flow pipe Return pipe

Connection Nr. Wire loop resistance,

Insulation resistance

Connection Nr.

Wire loop resistance,

Insulation resistance

Montage began:…………………………………ended:………………..……………….....................……..

Enclosed (execution sketches, page count):..........................................................................................

Conclusion:……..………………………………………………………………………….................…………

Montage and measurements performed:........……………………….. …/…………....……………………/ Name, surname Signature

Inspected:…....……………..........……………………….……………………/…………...…………….……/ Position, name, surname Signature


Addition Nr 4

SECURITY ALARM STATEMENT OF ACCEPTANCE

Prepared: 20___. “_____” ________________ , ________________________________ place

Site address:____________________________________________________________

Track/section identification:__________________________________________________

_________________________________________________and length:________meters.

Parameter Preheated flow pipe Return pipe

Norm Actual Compliance Norm Actual Compliance Alarm wire loop resistance, Ωi

Insulation resistance, kΩ ≥ 200

≥ 200

Conclusion: _______________________________________________________________

________________________________________________________________________

________________________________________________________________________

Tests performed:

_____________________________________________________ _________________ Company, position, name, surname Signature



Alarm system accepted:


Notes: 1.Statement should be filled during track montage and is mandatory to keep all the warranty period. 2. “POLIURS” Ltd. warranty on alarm system wires is effective, if customer filled out and kept alarm

system montage testing act and alarm system acceptance act following this example. 3. Alarm wire loop resistance is calculated according to this formula: R= (0,013 x L) ± 15%, where – R- resistance (ohm); L- alarm wire loop length (meters). Example: section length 200 m, loop = 400 m, norm resistance R=5,2 ± 0,8 ohm. Calculations:


Addition Nr 5, page 1

COMPONENT NORMS FOR PIPE CONNECTION, USING POLYETHYLENE SLEEVES Minimal component quantity is given for connection length (steel pipe ends without insulation) - 340 mm and joint montage temperature +20°±5°C.

If during connection process there is no component loss, then provided component quantity guarantees PUR insulation average density of 65 kg/m3. In other cases such as longer connection area or lower temperature, proportionally increase component quantity. Shown in table component A and B quantity in liters:

Series 1 Series 2 Series 3

Descr. A B Descr. A B Descr. A B

21/90 0.08 0.10 21/110 0.12 0.15 21/125 0.16 0.19 26/90 0.08 0.10 26/110 0.12 0.15 26/125 0.16 0.19 33/90 0.08 0.10 33/110 0.12 0.15 33/125 0.15 0.18

42/110 0.11 0.13 42/125 0.15 0.18 42/140 0.19 0.23 48/110 0.11 0.13 48/125 0.14 0.17 48/140 0.18 0.22 57/125 0.13 0.16 57/140 0.17 0.20 57/160 0.23 0.27 60/125 0.13 0.16 60/140 0.17 0.20 60/160 0.23 0.27 76/140 0.15 0.18 76/160 0.21 0.25 76/180 0.27 0.32 89/160 0.19 0.23 89/180 0.25 0.30 89/200 0.33 0.39 108/180 0.22 0.26 108/200 0.29 0.34 108/225 0.40 0.48 114/200 0.28 0.33 114/225 0.39 0.47 114/250 0.50 0.60 133/200 0.24 0.29 133/225 0.34 0.41 133/250 0.46 0.55 139/225 0.32 0.38 139/250 0.44 0.53 139/280 0.60 0.72 159/250 0.38 0.45 159/280 0.54 0.65 159/315 0.78 0.94 168/250 0.36 0.43 168/280 0.51 0.61 168/315 0.75 0.90 219/315 0.56 0.67 219/355 0.82 0.98 219/400 1.16 1.39 273/400 0.90 1.08 273/450 1.32 1.59 273/500 1.84 2.21 324/450 1.03 1.24 324/500 1.55 1.87 324/560 2.18 2.63 355/500 1.34 1.61 355/560 1.98 2.38 355/630 2.80 3.37 377/500 1.19 1.43 377/560 1.82 2.19 377/630 2.64 3.18 406/560 1.60 1.93 406/630 2.43 2.93 406/710 3.48 4.19 426/560 1.44 1.73 426/630 2.27 2.73 426/710 3.32 4.00 457/560 1.18 1.42 457/630 2.00 2.41 457/710 3.06 3.69 508/630 1.53 1.84 508/710 2.58 3.11 508/800 3.92 4.72 530/630 1.30 1.56 530/710 2.36 2.84 530/800 3.70 4.46 610/710 1.48 1.78 610/800 2.82 3.40 610/900 4.49 5.41 630/800 2.58 3.11 630/900 4.25 5.12 630/1000 6.12 7.38 711/800 1.53 1.84 711/900 3.20 3.86 711/1000 5.07 6.11 720/900 3.08 3.71 720/1000 4.94 5.96 813/900 1.70 2.05 813/1000 3.57 4.30

820/1000 3.46 4.17



COMPONENT NORMS FOR DOUBLE PIPE CONNECTION SYSTEM, USING HEAT-SHRINKABLE BELMAFLEX SLEEVE. Minimal component quantity is given for connection length (steel pipe ends without insulation) - 340 mm and joint montage temperature +20°±5°C.


Series 1 Series 2 Series 3

Descr. A B Descr. A B Descr. A B

21/90 0.11 0.13 21/110 0.16 0.19 21/125 0.21 0.25 26/90 0.11 0.13 26/110 0.16 0.19 26/125 0.20 0.24 33/90 0.11 0.13 33/110 0.16 0.19 33/125 0.20 0.24

42/110 0.15 0.18 42/125 0.19 0.23 42/140 0.24 0.29 48/110 0.15 0.18 48/125 0.19 0.23 48/140 0.24 0.29 57/125 0.18 0.22 57/140 0.23 0.27 57/160 0.30 0.36 60/125 0.18 0.22 60/140 0.22 0.26 60/160 0.30 0.36 76/140 0.20 0.24 76/160 0.28 0.33 76/180 0.36 0.43 89/160 0.26 0.31 89/180 0.34 0.41 89/200 0.43 0.51 108/180 0.31 0.37 108/200 0.40 0.48 108/225 0.53 0.63 114/200 0.39 0.47 114/225 0.52 0.62 114/250 0.66 0.79 133/200 0.34 0.41 133/225 0.47 0.56 133/250 0.61 0.73 139/225 0.46 0.55 139/250 0.60 0.72 139/280 0.79 0.95 159/250 0.54 0.65 159/280 0.73 0.88 159/315 0.98 1.18 168/250 0.51 0.61 168/280 0.70 0.84 168/315 0.95 1.14 219/315 0.76 0.91 219/355 1.08 1.3 219/400 1.48 1.78 273/400 1.23 1.48 273/450 1.73 2.08 273/500 2.30 2.77 324/450 1.44 1.73 324/500 2.00 2.41 324/560 2.75 3.31 355/500 1.80 2.17 355/560 2.54 3.06 355/630 3.53 4.25 377/500 1.65 1.99 377/560 2.39 2.88 377/630 3.37 4.06 406/560 2.17 2.61 406/630 3.15 3.8 406/710 4.42 5.33 426/560 2.01 2.42 426/630 2.99 3.6 426/710 4.26 5.13 457/560 1.74 2.09 457/630 2.73 3.29 457/710 3.99 4.81 508/630 2.25 2.71 508/710 3.52 4.24 508/800 5.11 6.16 530/630 2.03 2.44 530/710 3.30 3.98 530/800 4.89 5.89 610/710 2.42 2.91 610/800 4.00 4.82 610/900 6.01 7.25 630/800 3.76 4.53 630/900 5.77 6.96 630/1000 7.98 9.62 711/800 2.72 3.28 711/900 4.72 5.69 711/1000 6.93 8.36 720/900 4.59 5.53 720/1000 6.81 8.21 813/900 3.22 3.88 813/1000 5.43 6.55

820/1000 5.32 6.41



COMPONENT NORMS FOR DOUBLE PIPE CONNECTION Minimal component quantity is given for connection length (steel pipe ends without insulation) - 340 mm and joint montage temperature +20°±5°C.


A. Using PE sleeves:

Description A B Description A B 21+21/90 0.08 0.10 26+21/110 0.11 0.13

26+26/110 0.12 0.15 33+21/110 0.11 0.13

33+33/140 0.17 0.20 33+26/110 0.10 0.12

42+42/160 0.22 0.26 42+26/125 0.13 0.16

48+48/160 0.21 0.25 42+33/125 0.13 0.16

57+57/160 0.19 0.23 48+33/140 0.16 0.19

60+60/200 0.32 0.38 48+42/140 0.15 0.18

76+76/225 0.38 0.45 60+33/160 0.21 0.25

89+89/250 0.46 0.55 60+42/160 0.20 0.24

108+108/315 0.74 0.89 60+48/160 0.20 0.24

114+114/315 0.71 0.85

133+133/400 1.21 1.45

139+139/400 1.18 1.42

159+159/450 1.47 1.77

168+168/450 1.42 1.71

B. Using Belmaflex heat-shrinking sleeves:

Description A B Description A B 21+21/90 0.11 0.13 26+21/110 0.16 0.19

26+26/110 0.16 0.19 33+21/110 0.16 0.19

33+33/140 0.24 0.29 33+26/110 0.16 0.19

42+42/160 0.31 0.37 42+26/125 0.19 0.23

48+48/160 0.29 0.34 42+33/125 0.19 0.23

57+57/160 0.28 0.33 48+33/140 0.23 0.27

60+60/200 0.45 0.54 48+42/140 0.23 0.27

76+76/225 0.54 0.65 60+33/160 0.29 0.34

89+89/250 0.64 0.77 60+42/160 0.29 0.34

108+108/315 1.00 1.20 60+48/160 0.28 0.33

114+114/315 0.98 1.18

133+133/400 1.61 1.94

139+139/400 1.58 1.90

159+159/450 1.97 2.37

168+168/450 1.91 2.30

heating main montage instruction1 - poliurs · anchor block from reinforced concrete around fixed...

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