RAUTHERMEX. Technical information EN

Transcription

1 RAUTHERMEX Technical information EN Subject to technical modifications / Valid as from December 2005

2 Table of contents Page 1 Introduction 3 11 Features and benefits 3 12 Scope 3 13 Application 3 2 Main components 4 21 RAUTHERMEX pipe 4 22 REHAU compression sleeve system 4 23 REHAU insulation kits 4 3 Material properties 5 3,1 RAUTHERMEX pipe Carrier pipes RAUTHERMEX SDR 11 carrier pipes RAUTHERMEX SDR 74 carrier pipes Pressure and temperature limits PE-Xa properties values Approvals for carrier pipe 5 32 Pipe insulation Properties 6 33 RAUTHERMEX outer jacket Outer jacket properties 6 34 Compression sleeve system Material 6 35 RAUTHERMEX insulation kits RAUTHERMEX insulation kit for T-pieces RAUTHERMEX insulation kit for couplers Socket material properties Heat-shrink sleeves Material properties 7 36 PU foam cartridge Technical data of component A, colour: yellow Component B, colour: brown Typical process data on foaming 7 37 RAUTHERMEX pipes sizes 8 4 Design 9 41 General design considerations Suitable pipe laying methods Pipe routing considerations planning Pipe sizing Design tips 9 42 Piping strategies Branch piping Building to building piping Branching off a plastic jacketed main line Pipe laying techniques Open cut technique Horizontal directional drilling (HDD) Pull-through method Computing pressure-loss for SDR 11 pipes Head loss with SDR 74 pipes Energy loss with SDR 11 pipes Energy loss with SDR 74 pipes 15 Page 5 Installation Handling Transporting Lifting with a digger Lifting with a fork lift Storing Preparing the trench Trench design Proximity to other services Sloped trenches Laying pipes Joining pipes Installing T-insulation kit Installing coupler insulation kit Using foam cartridge Using PU foam from canister Heat shrinking of sleeves Wall penetrations Connecting through basement Wall seals Compression wall seals Compression wall seals FA 80, watertight up to 15 bar Compression wall seals FA Prefabricated bends Ends caps Linear expansion in trench Linear thermal expansion when connecting to buildings Miscellaneous Pipe in sleeve system Installing during land development phase Tapping into existing lines 28 6 Commissioning 29 7 Standards and guidelines 29 2

3 1 Introduction To meet energy efficiency targets modern industrial and residential construction projects often require central heating or cooling plants combined with long-distant insulated pipe networks Considerable CO 2 savings can be achieved with centralised plant rooms using condensing bio-mass, bio-gas technology or a combined heat and power unit The same is true for using waste heat from industrial plants The RAUTHERMEX pipe system is a preinsulated pipe system which meets the high demands for all these technologies and is designed for the future 11 Features and benefits: Flexible pipe system enables cost-effective pipe routing Non-corrosive material of the RAUTHERMEX pipe ensures long service life of pipe network No linear expansion as pipe layers are fully bonded together No expansion bellows or compensators required Fully bonded pipe layers limit water penetration to absolute minimum System components for all applications Fig 1 Bio-mass plant heat supply 12 Scope This technical information applies to the design, installation and operation of the flexible RAUTHERMEX pre-insulated pipe system, the REHAU compression sleeve joints and the RAUTOOL tools 13 Applications RAUTHERMEX is a pre-insulated pipe system used predominantly below ground District heating Cold and hot water mains services Swimming pool technology Cooling technology Industry and agriculture Flow and return connections to external surface heating Geothermal applications Fig 2 Waste-heat from a bio-gas plant used for school heating Fig 3 Hot-water supply to a swimming pool 3

4 2 Main components 21 RAUTHERMEX pipe RAUTHERMEX pre-insulated pipes consist of coextruded fully bonded layers resulting in a system, where water penetration along the pipe is reduced to a minimum and no movement between the individual layers is possible The UNO and DUO variant features one or two carrier pipes, respectively, made of highpressure crosslinked polyethylene (RAU-PE- X) in accordance with DIN 16892/93, SDR 11 with an oxygen-barrier layer in accordance with DIN 4726 OR SDR 74 for drinkingwater applications with DVGW (German Technical and Scientific Association for Gas and Water) approval The insulation is made of polyurethane foam and the outer jacket is made of PE-LD Advantages: Fully bonded system ensures, no linear expansion in the pipe trench No static pipe load calculation required Quick installation Small bending radius Low energy loss due to excellent thermal conductivity properties of insulation Fig 4 RAUTHERMEX UNO and DUO pipe 22 REHAU compression sleeve joint The compression sleeve technology is a method developed and patented by REHAU for quick, secure and permanently leakproof connections between PE-Xa pipes It comprises a fitting and sleeve Since the pipe itself acts as the seal, additional O-rings are unnecessary Four sealing ribs guarantee absolute security of the connection, which also resists the tough conditions on construction sites Specially designed ribs prevent the pipe from separating itself during operation Advantages: Secure and permanent connection Carrier pipes are exepanded to make connection, therefore No bore reduction The resulting pressure loss is negligible and no cavitation forms Quick installation Can be pressurized immediately Works under any site conditions (rain, low temperatures, etc) Fig 5 RAUTHERMEX compression sleeve joint 23 REHAU insulating kits Joints below ground such as couplers and T-pieces have to be insulated and waterproofed to the same level as the main RAUTHERMEX pipe network The insulation kits specifically developed for this application consists of a plastic socket with stepped ends to adapt to the varying sizes of the outer jackets Two heat-shrink sleeves are used for sealing the coupler socket and three for marking the T-socket waterproof For insulation purposes high-quality PU foam is available in cartridges, or in canisters if larger quantities are needed Advantages: Quick and easy installation Secure sealing Very good heat retention properties Only four components for all pipe sizes Fig 6 RAUTHERMEX Insulated T-piece 4

5 3 Material properties 31 RAUTHERMEX pipe RAUTHERMEX pipe is made up of the following main components: Carrier pipe Insulation layer Outer jacket pipe These components are explained in more detail below Advantages: Flexibiliy; small bending radius of only 07 m (DN 20) to 14 m (DN 125) are possible Large coil lengths of 86 m (DN 125) to 760 m (DN 20) mean few joints and less installation work Pipe insulation Outer jacket pipe 311 Carrier pipes The carrier pipe is made out of crosslinked polyethylene (PE-Xa) in accordance with DIN and DIN PE-Xa pipes are available for two pressure levels with different wall thicknesses (SDR 11 and SDR 74) The carrier pipes are crosslinked via the addition of peroxide at high pressure and temperature The cross-linking process bonds the macromolecules in a robust 3-dimensional network 312 RAUTHERMEX carrier pipes SDR 11 Fig 7 SDR 11 carrier pipes The RAUTHERMEX SDR 11 pipes are predominantly used for heating and cooling applications Hence they have an additional oxygen-barrier layer made of EVOH in accordance with DIN 4726 The colour of these pipes is orange 313 RAUTHERMEX SDR 74 carrier pipes The RAUTHERMEX SDR 74 pipes are used in many countries for drinking-water applications (see item 317, Approvals) The colour of these pipes is natural Carrier pipe Fig 9 RAUTHERMEX pipe make-up Advantages: Excellent chemical resistance Low friction coefficient (e = 0007 mm at 60 C) No incrustations Low pressure loss over the entire service lifetime SDR 11 pipes with special orange EVOH oxygen-barrier layer Corrosion resistance Advantageous aging properties Creep resistance Good recovery/memory effect Heat resistance Does not carry sound well Pressure resistance Toxicologically and physiologically harmless Excellent notched impact resistance 314 Pressure and temperature limits For continuous temperatures and assuming a safety factor of 125 in accordance with DIN 16892/93, the following temperature and pressure limits (application: water, safety factor: 125) apply to RAUTHERMEX pipes: RAUTHERMEX, SDR C 119 bar 50 years 50 C 106 bar 50 years 60 C 95 bar 50 years 70 C 85 bar 50 years 80 C 76 bar 25 years 90 C 69 bar 15 years 95 C 66 bar 10 years RAUTHERMEX, SDR C 189 bar 50 years 50 C 168 bar 50 years 60 C 150 bar 50 years 70 C 134 bar 50 years 80 C 121 bar 25 years 90 C 110 bar 15 years 95 C 106 bar 5 years For varying operating pressures and temperatures, the expected service life can be determined according to the "Miner's Rule" DIN The carrier pipes are designed for maximum operating temperatures of 95 C, but can tolerate temperatures up to 110 C for short periods in the case of malfunctions Chemical resistance RAUTHERMEX PE-Xa carrier pipe exhibits a very good resistance to the majority of chemicals and concentrations Safety factor and temperature resistance depend on the medium used in the application (eg hot water, chilled water etc) The resistances listed in DIN 8075, Supplement 1, also apply to PE-Xa 315 PE-Xa properties Density 094 g/cm 3 Average linear thermal K -1 longitudinal expansion coefficient in the temperature range of 0 to 70 C Thermal conductivity 038 W/mK Young s modulus 600 N/mm 2 Surface resistance Material class Pipe surface roughness 316 Approvals for carrier pipe SDR 11 approvals: France: Atec 15+15/ SDR 74 approvals: Germany: DVGW (DW-8301A02102 DW-8302A02931) Austria: ÖVGW (W 1094) > ς B2 (normal flammability) German Standard 0007 mm Fig 8 SDR 74 carrier pipes 5

6 32 Pipe insulation The RAUTHERMEX SDR 11 and 74 pipes are manufactured with PU foam using CO 2 as blowing agent The PU foam is therefore free from CFCs and HCFCs 33 RAUTHERMEX outer jacket The RAUTHERMEX SDR 11 pipes have a mild corrugated jacket, that improves static load capability, increased longitudinal flexibility, and smaller bending radii, particularly for jacket pipe diameters of mm The RAUTHERMEX SDR 74 pipes have a black outer jacket To increase longitudinal flexibility, the outer jackets of RAUTHERMEX SDR 11 and SDR 74 pipes are manufactured from the flexible PE-LD material 341 Material The compression sleeve fittings are made of either specially dezincification-resistant brass in accordance with DIN EN 1254/3 (E) Class A or gun metal or ST37 The sleeves are made of annealed standard brass CuZn39Pb3 / F43 in accordance with DIN or gun metal RAUTOOL M1 Manual tool with dual clamping jaws for two dimensions Available for carrier pipe sizes The M1 compression jaws must only be used with the RAUTOOL M1 Fig 10 Exposed pipe layers Advantages: Very fine pores (up to 95 % closed cells) Cells contain no flammable gases High water vapour transfer coefficient and consequently no moisture penetration during operation 321 Properties Thermal conductivity GWP (greenhouse warming potential): 0 ODP (ozone depletion potential): 0 Density: Compressive strength: Water absorption: 0032 W/mK according to EN 253 > 57 kg/m³ 30 N/cm³ 5 % in accordance with EN 253 Long term heat resistance: 120 C Shear strength: according to EN 253 pipe 200 kpa Fig 11 Outer jacket Advantages: Very good bond with the PU foam Extruded seamlessly around the PU foam Ideal for use with the heat-shrink sleeves of the insulation kits 331 Outer jacket properties PE, low density polyethylene (PE-LD) Thermal conductivity: 043 W/mK Crystallinity melting range: C Density: 093 g/cm³ Young s modulus 400 N/mm 2 Material class B2 (normal flammability) Add GERMAN DIN standard 34 Compression sleeve system The pipe system operator must be able to rely on the jointing technology if the system is installed below ground A permanent leak proof connection can be guaranteed only if REHAU compression sleeve joints are utilised with REHAU RAUTOOLS Fig 13 RAUTOOL M1 RAUTOOL A2 Battery operated electrohydraulic tool with dual clamping jaws for two dimensions The hydraulic pump and tool cylinder are incorporated into one single portable and compact unit Available for carrier pipe sizes Fig 14 RAUTOOL A2 RAUTOOL G1 Tool for carrier pipe sizes ; optionally available for pipe size 40 x 55 It is powered either through a hydraulic foot pump or an electrohydraulic unit Fig 15 RAUTOOL G1 Fig 12 Compression sleeve joint 35 RAUTHERMEX insulation kits The insulation pods are made from extremely robust and impact-resistant LLDPE REHAU provides all specialist accessories and tools required to achieve a high quality insulation, including textile reinforced sandpaper, temperature indicator strips and Forstner drill bits 6

7 351 RAUTHERMEX insulation kit for T-piece The RAUTHERMEX insulation kit for T-pieces is used to insulate branches Only two insulation socket sizes are required to accommodate all pipe sizes thanks to the specially designed, stepped ends of each socket The insulation kit consists of 1 T-piece LARGE or small 3 pieces of heat-shrink sleeving 1 textile reinforced tape for small T-piece and 2 textile reinforced tapes for LARGE T-piece Installation instructions Fig 16 Insulated branch using insulation kit for T-pieces Cut away of insulated branch connection using REHAU insulation kit 352 RAUTHERMEX insulation kit for straight couplers The RAUTHERMEX insulation kit for couplers is used for insulation of couplings and end stop The insulation kit consists of: 1 coupler LARGE or small 2 pieces of heat-shrink sleeving Installation instructions 36 PU foam cartridge RAUTHERMEX joints are insulated using two-component PU foam The PU foam is available in cartridges and canisters The cartridge is supplied as set and includes 1 cartridge 1 vent plug 1 hexagon bolt (for mixing of foam) Installation instructions 361 Technical data Component A, colour: yellow: Freezing temperature: < 0 C Flashpoint: > 180 C Density: 1064 g/cm 3 (20 C) 362 Component B, colour: brown: Flashpoint: > 250 C Vapour pressure: (20 C) < 001 Pa Fig 18 insulated coupler using insulation kit for couplers 353 Socket material properties PE, low density polyethylene (PE-LD) Thermal conductivity: 043 W/mK Crystallinity melting range: C Density: 093 g/cm³ Young s modulus 600 N/mm 2 Material class B2 (normal flammability) GERMAN standard 354 Heat-shrink sleeving The inner surface of the heat-shrink sleeving is coated with a hot-melt adhesive 355 Material properties Tensile strength 14 MP Max elongation 300 % Density 11 kg/dm³ Water absorption < 0,1 % Softening C temperature of adhesive Fig 19 Photo of PU foam cartridge When using PU foam in canisters, the following articles are required: Canister with component A and canister with component B in appropriate quantities (see foaming table on REHAU homepage, wwwrehaude/ RAUTHERMEX) Foam cup Vent plug Density: (20 C) 124 g/cm³ 363 Typical process data on foaming (measured values) Measurement temperature: 20 C Mix ratio: 100 : 160 Reaction starts after: Thread time: Rise time: Raw density: (unrestricted foaming) Raw density (core): 40 seconds 130 seconds 180 seconds 59 kg/m³ 68 kg/m³ Compressive strength: 044 N/mm³ Upsetting deformation need to discuss: 6 % Closed-cell factor: 95 % Note: Carefully read safety data sheets and installation instructions supplied with the products before using the foam products Material class B2 (normal flammability) GERMAN standard Fig 20 Components A and B with foam sample 7

8 37 RAUTHERMEX pipe sizes UNO pipes, pipe series 1, SDR 11 Designation d s D Volume Weight Max coil length [m] [mm] [mm] [mm] inner pipe [l/m] [kg/m] 28 m x 08 m 28 m x 12 m 25/ / / / / / / / / / m straight lengths DUO pipes, pipe series 1, SDR 11 Designation 2 x d s D Volume Weight Max coil length [m] [mm] [mm] [mm] inner pipe [l/m] [kg/m] 28 m x 08 m 28 m x 12 m 25+25/ x / x / x / x / x UNO pipes, pipe series 2, SDR 74 Designation d s D Volume Weight Max coil length [m] [mm] [mm] [mm] inner pipe [l/m] [kg/m] 28 m x 12 m 20/ / / / / / DUO pipes, pipe series 2, SDR 74 Designation d1 s1 d2 s2 D Volume Weight Max coil length [m] [mm] [mm] [mm] [mm] [mm] inner pipe [kg/m] 2,8 m x 1,2 m 25+20/ / / /

9 4 Design 41 General design considerations Efficient RAUTHERMEX pipes make it possible to achieve the operational cost savings of district heating networks and supply lines between two buildings 412 Suitable pipe laying methods The flexibility of RAUTHERMEX pipes makes them suitable for a wide range of laying methods as long as the correct method for the local conditions is selected The fully bonded RAUTHERMEX system is also ideal for bridging long distances with trenchless laying methods such as trench ploughing and horizontal directional drilling 413 Pipe routing considerations The proximity to other services must be taken into account when routing the pipes The burial depth for achieving the minimum coverage (section 522) is particularly important when pipes are buried underneath roadways to keep the stress loads on the pipe within the permitted limits In such cases the correct compacting of the final cover according to the relevant standards should also be ensured Venting of the RAUTHERMEX pipes is generally done via the branch connections to the buildings If this is not possible, vents can be fitted at the highest points of the underground network For larger pipe networks, it is recommended to divide the network into smaller subsection with below ground isolating valves Subsections can so be isolated when the network is extended at a later time A static pipe network calculation with expansion legs, bellows or compensators is not necessary with RAUTHERMEX pipes thanks to their self compensation 414 Pipe sizing The hydraulic performance of RAUTHERMEX pipes is considerably greater compared to steel pipes due to the lower pipe roughness For this reason, pressureloss tables for steel pipes cannot be used for the pressure-loss calculation of RAUTHERMEX pipes It is recommended when sizing RAUTHERMEX pipes to compare the heat losses and pump capacities Since full pump capacity is usually only required on a few days of the year, reducing the pipe dimensions can lead to a considerable reduction in heat loss and materials used For optimal sizing of the network, the variations in heat demand over one year must be analyzed The charts on pages 12 and 13 can be used for estimating the pressure-loss 415 Design tips From the heat demands plotted over one year (see Fig 22), it is quite clear that full heating capacity is only required on a few days a every year Investment and (due to higher heat losses) running costs of district heating networks rise with increasing pipe diameter the Therefore the smallest possible pipe diameters should be designed for RAUTHERMEX pipe networks The Additional costs required to compensate the higher pressure loss at full capacity are more than outweighed by the savings in investment and running costs To further maximise the efficiency of the system a second pump which starts automatically when the primary pump reaches full capacity can be utilised The primary pump is therefore sized for average demand rather than peak demand, ensuring for the majority of operation it is run at optimum duty The secondary pump is utilised as a back-up pump in the case of mechanical or electrical failure Another possibility is to split the supply lines into three (two flow pipes and one return pipe) or four pipes (two flow pipes and two return pipes) If the second supply lines are only switched on when the capacity of the first is exceeded, the complete network can indeed be operated with minimal heat losses for most of the year Heating Wärmeleistung capacity ex ab heat Heizwerk plant in % in % Operating Betriebsstunden hours Fig 22 Annual heat demand 9

10 42 Piping strategies 421 Branch piping Buildings are connected via branches from a main line Mixed types are also possible, of course Advantages: Flexible in design Easy installation even before buildings are erected Staged developments possible as new branches can be easily added 422 Building-to-building ("Daisy Chain") piping In many cases, the availability of long delivery lengths of RAUTHERMEX pipes allows for a complete elimination of below-grade connections or branches by laying the RAUTHERMEX pipes from one building to the next and back Fig 23 Branch piping Advantages: No connections below grade 423 Branching off a plastic jacketed main line A take off from a plastic jacketed main pipe to a RAUTHERMEX pipe to extend an existing network or to connect of a single building is possible Fig 24 Building-to-building ("Daisy Chain") piping Advantages: If the operating temperatures of the main line are too high, a secondary network with RAUTHERMEX pipes can be created via a network decoupling If the heating capacity of the main line is too high for the RAUTHERMEX pipes, branches can be added without the need for any special precautions Fig 25 Branching off a plastic jacketed main line 10

11 43 Pipe laying techniques 431 Open cut technique This is the most common laying method RAUTHERMEX pipe trenches can be very narrow Only at junctions and branches is sufficient space required to complete the joints Advantages: Flexible laying without special equipment Narrow pipe trenches Obstacles can be bypassed with minimal costs Additional connections can be made at any time Fig 26 Open cut technique 432 Horizontal Directional Drilling (HDD) This method is also suitable for RAUTHERMEX Advantages: High-quality surface structures can thus be bypassed cost-effectively It is even possible to cross under water reservoirs In these cases, the RAUTHERMEX pipes should be installed in a protective sleeve Fig 27 Horizontal Directional Drilling (HDD) 433 Pull-through technique With the pull-through method, RAUTHERMEX pipes can be installed in disused channels, already laid pipes or in plastic jacket pipes which require renovating Advantages: Defective pipelines can be renovated easily Cost-effective laying through empty pipes which already exist or have been installed using Horizontal Directional Drilling (HDD) The fully bonded construction allows high pull forces to be used and therefore large distances to be covered Fig 28 Pull-through method 11

12 44 Computing pressure-loss for SDR 11 pipes To estimate the head loss in a section of pipe, the pipe length is required and the pipe routing defined The flow rate quantity Q [litres/sec] or the heat carrying capacity [kw/h] together with the design temperature drop [K] can be used for system design The bore of SDR 11 and SDR 74 pipes is different and consequently different head loss tables apply Water temperature Head loss diagram circle 1 circle 2 circle 3 Flow Heating capacity Q in kw with temperature drop σ = 20K Fig 29 SDR 11 head loss diagram Heating capacity Q in kw with temperature drop σ = 30K Computing pressure loss using flow rate Q [litres/sec]: Example: SDR 11 pipes Flow rate: 065 l/s Section length: 100 m = total pipe length: 200 m Start point Draw a vertical straight at 055 l/s (red line) Pipe size and associated head loss Where it crosses the respective line for each pipe size (circles), draw a horizontal line to the left axis (green lines) The intersections of each horizontal line with the vertical axis indicate the expected head loss [Pa/m] Resulting velocity [metres/sec] Starting where the vertical line crossed the lines for each pipe size, draw a straight line diagonally up and left (blue line) Possible options: Circle 1 Pipe size: 32 x 29 Green line head loss: 550 Pa/m Total pressure loss: 550 Pa/m x 200 m = Pa = 11 bar = 11 mws Blue line velocity: 13 m/s Circle 2 Pipe size: 40 x 3,7 Green line head loss: 200 Pa/m Total pressure loss: 200 Pa/m x 200 m = Pa = 04 bar = 4 mws Blue line velocity: 08 m/s Circle 3 Pipe size: 50 x 57 Green line head loss: 65 Pa/m Total pressure loss: 65 Pa/m x 200 m = 1300 Pa = 013 bar = 13 mws Blue line velocity: 05 m/s Computing pressure loss using heatcarrying capacity [kw] If the required heat carrying capacity in [kw/h] and the design temperature drop [K] are available, the first step is also to draw a vertical line Example: Temperature drop: 30 K Heat carrying capacity: 80 kw Length: 100 m Pipe sizes and associated head loss Identify the correct axis for the selected temperature drop and draw a vertical straight line at the 80 kw mark (yellow line) All subsequent steps follow the same sequence and logic as for the previous computing method using the flow rate as a starting point Calculation including heat loss to the ground A total value including expected heat losses to the ground can be computed by adding the heat losses of Tables 1 and 2 to the heat carrying capacity 441 Pressure loss with SDR 74 pipes The RAUTHERMEX SDR 74 pipes are predominantly used for transporting drinking water Local guidelines for calculating the peak flow rates for drinking water have to be followed The pressure loss in Pa is dictated by the required peak flow rate [litres/sec] The peak flow rate [litres/sec] is then identical to the flow rate [litres/sec] in Fig 31 12

13 Water temperature Head loss diagram Flow Heating capacity Q in kw with temperature drop σ = 20K Fig 30 SDR 11 head loss diagram Heating capacity Q in kw with temperature drop σ = 30K Water temperature Head loss diagram Flow Fig 31 SDR 74 head loss diagram 13

14 45 Energy losses with SDR 11 pipes Assuming an ambient soil temperature of 10 C, soil conductivity of 12 W/mK, depth of 06 m from the surface and (in case of two UNO pipes side by side) pipe spacing of 01 m, the following energy losses per meter of pipe can be expected for the indicated mean water supply temperatures The indicated energy losses apply per for 1 meter of RAUTHERMEX pipe Assumptions UNO pipes: 2 pipes in trench below grade DUO pipes: 1 pipe in trench below grade Pipe spacing: for UNO pipes a = 01 m Depth from surface: H = 06 m Ambient soil: T E = 10 C Soil Conductivity: l E = 12 W/mK Cond of PUR foam l PU = 0032 W/mK Cond of PE-Xa pipe lpe-xa = 038 W/mK Cond of outer PE jacket lpe= 0043 W/mK Energy losses during operation: H = K (TB - TE) [W/m] K = thermal heat transfer coefficient [W/mK] T B = mean water supply temperature [ C] T E = ambient soil temperature [ C] CAUTIONARY NOTE: Soil type, moisture content and soil temperature have a significant effect on the energy losses The given values are provided as a guideline and offer a general understanding of the estimated energy losses one may expect If precise calculations are desired, we recommend you consult a professional engineer Energy loss of SDR 11 UNO pipe a=01m TE E H=06m Fig 32 RAUTHERMEX SDR11 UNO Energy losses [W/m] mean water supply temperature T B [ºC] RAUTHERMEX UNO k [W/mK] 40 º 50 º 60 º 70 º 80 º 90 º 25/ / / / / / / / / / Tab 1 Energy loss of SDR 11 UNO pipes Energy loss of SDR 11 DUO pipe H=06m TE Energy losses [W/m] mean water supply temperature T B [ºC] RAUTHERMEX DUO k [W/mK] 40 º 50 º 60 º 70 º 80 º 90 º 25+25/ / / / / Tab 2 Energy loss of SDR 11 DUO pipes E Fig 33 RAUTHERMEX SDR11 DUO 14

15 46 Energy losses with SDR 74 pipes Bei einer Erdeichtemperatur von 10 C, einer Leitfähigkeit des Bodens von 1,2 W/mK, einer Überdeckungshöhe von 0,6 m und (bei Verwendung von zwei UNO- Rohren) einem Rohrabstand von 0,1m stellen sich je Rohrmeter folgende Wärmeverluste bei der jeweiligen mittleren Betriebstemperatur ein Assumptions UNO pipes : 2 pipes in trench below grade DUO pipes: 1 pipe in trench below grade Pipe spacing: for UNO pipes a = 01 m Depth from surface: H = 06 m Ambient soil temperature: T E = 10 C Soil conductivity: l E = 12 W/mK Cond of PUR foam l PU = 0032 W/mK Cond of PE-Xa pipe lpe-xa = 038 W/mK Cond of outer PE jacket lpe= 0043 W/mK Energy losses during operation: H = K (TB - TE) [W/m] K = thermal heat transfer coefficient [W/mK] T B = mean water supply temperature [ C] T E = ambient soil temperature [ C] Energy loss of SDR 74 UNO pipe Energy losses Q [W/m] k [W/mK] mean water supply temperature T B [ºC] RAUTHERMEX UNO 40 º 50 º 60 º 70 º 20/ / / / / / Tab 3 Energy loss of SDR 74 UNO pipes Fig 34 RAUTHERMEX SDR 74 UNO Energy loss of SDR 74 UNO pipe Energy losses Q [W/m] k [W/mK] mean water supply temperature T B [ºC] RAUTHERMEX DUO 40 º 50 º 60 º 70 º 25+20/ / / / Tab 4 Energy loss of SDR 74 DUO pipes Fig 35 RAUTHERMEX SDR 74 DUO 15

16 5 Installation Fig 36 Fig 37 RAUTHERMEX coil on trailer Fig 38 Lifting of RAUTHERMEX 511 Handling Incorrect transport or storage can result in damage to RAUTHERMEX pipes, accessories and fittings which could effect the operational safety and/or thermal insulation properties of the pipe network Pipes, fittings and accessories must be checked for any transport and/or storage damage before being placed in the trench Damaged pipes fittings and accessories must not be installed 512 Transport Pipe coils are to be transported horizontally on a load area must lie completely flat and be secured to prevent shifting The load area must be cleaned before loading up the pipe coils 513 Lifting with a digger When lifting a pipe coil, ensure that the lower part of the coil, which initially is still touching the ground and carrying part of the total weight, is not dragged across the ground or load area Take extra care when putting down the pipe coils: Do not use ropes for lifting, only transport straps at least 50 mm wide Fig 39 Fig 40 Fig Lifting with a fork lift When using a fork lift, ensure the forks are covered with a soft material (cardboard, plastic tubes) Note: When using plastic tubes make sure they are secured properly to prevent them from slipping off 515 Storing We recommend storing pipe coils horizontally on wooden planks In general this will avoid any pipe damage and allow easy lifting when moved at a later stage Under no circumstances are pipe coils to be stored on top of sharp-edged objects Pipe coils should not be stacked on top of each other Coils must not be stored in an upright position Attention: Danger of injury! The resulting small contact area between ground and coil would also allow objects to easily penetrate the outer jacket Fig 42 Fig 43 Fig Digging trenches The dimensions of the pipe trench influence the level and distribution of the soil and traffic loads and thus the load-bearing capacity of the pipeline The width at the bottom of the trench depends on the outer diameter of the pipe, quantity of pipes and also whether or not additional working space is required to lay the pipes Sections underneath roadways must comply with loading classifications SWL 30 or SWL 60 in accordance with DIN 1072 For RAUTHERMEX additional working space is only necessary in the jointing areas and should be in accordance with the requirements set by the local standards and working regulations The minimum pipe cover for RAUTHERMEX pipes is 60 cm The maximum cover is 26 m For bigger pipe covers a static load calculation is required The bottom of the trench has constructed in such a way, that it meets the specified width and depth and the pipeline can be in contact with it over its entire length 16

17 522 Trench design T D D 10 T D T 10 D 10 D B D 10 D 10 Fig 44 DUO pipes Fig 45 Two-pipe system with UNO pipes Fig 46 Four-pipe system with UNO pipes, 2 x 2 arrangement B 10 D 10 D 10 B D D 10 D 10 D 10 D 10 B (4xD + 5x10) T Fig 47 Four-pipe system with UNO pipes, 1 x 4 arrangement Other Crossover Parallel Service >5 m 1 kv -, signal, 03 m 03 m Sensor cable 10 kv or a 06 m 07 m 30 kv cable Several 30 kv 10 m 15 m cables or cables over 60 kv Gas and 02 m 04 m water services Fig 48 Minimum separation The required trench widths are shown in Fig 44 through 47 Only sand of grade 0/4 is to be used around the pipes and must be manually compacted 523 Proximity to other services Minimum separations to other services must be observed Drinking-water services adjacent to district heating pipes are to be separated by the minimum distance to prevent them from warming up above the temperatures specified by the applicable standards If the specified minimum distance cannot be achieved, the drinking-water lines may have to be insulated Fig 49 The trench bottom may not be aerated Aerated, cohesive soil is to be removed down to the bottom of aeration before laying the pipes and replaced with non-cohesive soil or a special pipe support Aerated, noncohesive soil is to be packed again concrete bracket non-woven gravel Fig 50 In rocky and stony conditions, the trench is to be excavated to a depth of at least 01 m below the bottom of the pipe and the excess excavation shall be filled with compacted washed sand of grade 0-3/4 Fig 51 Non-woven in pipe trench If pipes are laid in swampland and marshland with varying water table or underneath roadways solid obstructions which can effect the pipe support must be removed to a sufficient depth under the pipes In cases where the bottom of the trench is unstable or the soil is highly saturated the pipes have to be secured through adequate construction measures, eg using non-wovens The same applies where the load bearing capability of the soil changes along the trench Fig 52 Cross brackets 524 Sloped trenches On slopes, cross brackets are required to prevent the bedding from being washed away In some cases Drainage may be needed 17

18 Fig Laying pipes Cutting straps Safety Warning:When cutting the straps on coils undoing the coil bindings, pipe ends can spring outward! Always cut straps open bindings layer by layer (Fig 54)Do not stand in the danger zone (Fig 54)! Fig 54 Warning: When undoing the bundled coil bindings, pipe ends can spring outward! Always open bindings layer by layer (Fig 54) Do not position yourself in the hazardous area (Fig 54)! Fig 55 Ensure that the uncoiled pipe section does not twist, as otherwise kinks may form Another reason for cutting the straps layer by layer Fig 56 Uncoiling For pipes with outer diameter up to 126 mm, the coils are usually uncoiled in their upright position For larger pipe sizes, we recommend a mechanical uncoiler be used The coils can then, for example, be positioned horizontally on the uncoiler and uncoiled by hand or a slowly-moving vehicle Fig 57 Bend areas The high flexibility of the RAUTHERMEX pipes allows easy and quick laying Obstacles can be bypassed and changes of direction in trenches are possible without the need for fittings However, based on the pipe temperature, the minimum bending radii as specified in the following table must be observed RAUTHERMEX- Minimum bending outer diameter radius at 10 C [d] outer jacket temper [R] 76 mm 07 m 91 mm 08 m 111 mm 09 m 126 mm 10 m 142 mm 11 m 162 mm 12 m 182 mm 14 m Tab 5 Bending radii If the above bending radii have to be achieved at lower jacket pipe temperatures, the bend area of the pipe can be preheated with a low burner flame For installation in frost conditions the bend area of the pipe must always be preheated Fig 58 The reduction of pipe flexibility at low temperatures around the freezing point means that the RAUTHERMEX pipes cannot be easily uncoiled To minimize the effect of low temperatures on the flexibility the pipe coils can be warmed up for a few hours in a heated building or a heated tent Fig 59 Backfilling with sand Fill pipe trench up to 10 cm over the top of the pipes using sand of grade 0/4 and compact by hand Fig 60 Identification tape For better identification during future excavation work, an identification tape should be laid 40 cm above the pipes The identification tape should comply with the local standards and regulations For easier location of the installed pipeline, identification tape with metallic strips can be used 18

19 541 Joining Pipes Fig 61 Fig 62 Fig 63 Installation tool and accessories Hand saw Knife or chisel Safety goggles Gloves Soft-flame torch Sandpaper / Abrasive cloth and Forstner drill bit Cut pipe Attention: RAUTHERMEX pipe can spring back! Stripping lengths according to diameter of carrier pipe: OD mm: 100 mm OD mm: 125 mm OD mm: 150 mm Strip at least 2-4 cm extra so that the carrier pipe can be trimmed square (see Fig 66) Fig 64 Fig 65 Fig 66 Cut pipe jacket all the way round with a saw or pipe cutter and peel it off Attention: Do not damage carrier pipe! Remove foam Attention: Take care not to damage the oxygen-barrier! Cut carrier pipe square Fig 67 Fig 68 Fig 69 Using the sandpaper /abrasive cloth remove the remaining PU foam from carrier pipe Slide compression sleeve onto the pipe ensuring the square end faces to the insulation and the chamfered end towards the joint Expand pipe twice offset approx 30 Note: For diameters above 63 mm use REHAU lubricant on the carrier pipe Fig 70 Insert fitting Position the tool jaws such that the pipe and fitting is fully within the jaws and start compression Attention: Before using the tool, read The operating instructions supplied with the tool very carefully! 19

20 542 Installing insulation kit for T-piece Fig 71 Fig 72 Fig 73 Drill 3 mm vent holes at both ends (not at branch end) Drill 25 mm hole on branch to pour in foam Trim ends according to outer jacket diameters (see markings on the levels) [A3] Fig 74 Fig 75 Fig 76 Slide on all three heat-shrink sleeves with the chamfered side towards the fitting Attention: Take care to keep inside of sleeves clean If required cut out recess for tool Outer [A] [A] diameter WZ A1 WZ G1 Carrier and M mm 170 mm mm mm mm Tab 6 Making compression joint Fig 77 Fig 78 Slide complete T-piece onto the branch pipe as shown and complete 3 rd compression sleeve joint 543 Installing insulation kit for coupler Pull back T-piece over the completed T-joint and secure 5x with reinforced tape as shown Flare pipe twice offset by approx 30 Rohr zwei Mal um ca 30 versetzt aufweiten Fig 79 Preparation of pod Drill vent hole Drill hole to pour foam Trim ends according to outer jacket diameters (see markings on the levels) Fig 80 Slide socket and heat-shrink sleeves onto the RAUTHERMEX pipe and complete compression sleeve joint Fig 81 Position socket as shown 20

21 544 Using foam cartridge Fig 82 Fig 83 Fig 84 Equipment Cordless drill, rpm Safety goggles Disposable gloves Wear safety goggles, gloves and long sleeves shirts and pants when using foam Only use foam in well ventilated workspaces! The ideal foaming temperature is between 15 C and 22 C Fig 85 Fig 86 Fig 87 Foam cartridge with mixing rod Screw in mixing rod Push mixing rod fully into cartridge ensuring the safety ring stays firmly attached to the mixing rod Fig 88 Fig 89 Fig 90 Attach the screwdriver immediately after inserting the mixing rod and mix evenly at > 700 rpm for approx 20 sec After mixing Remove the black safety ring and hold the cartridge over the 25mm hole in the pod Use the mixing rod to perforate the cartridge seal, rotate it a full 360º and pull it back again by 5 cm Fig 91 Once all the foam is poured in the vent plug is pushed in up to the first stop Fig 92 The hole in the vent plug must remain visible until the PU foam is coming through Fig 93 Now the vent plug can be pushed in completely 21

22 545 Using PU foam from a canisters Fig 94 Fig 95 Fig 96 PU foam components A and B Using the REHAU table for mixing ratios, pour the required amount of component A into the mixing cup The cups have a measuring scale printed on them Add in component B to the cup until the correct total is reached The required total amount can be taken from the last column of the REHAU table for mixing ratios Fig 97 Mix components A and B evenly together in the mixing cup for 20 sec Fig 98 Fill foam into the socket Fig 99 Insert the vent plug up to the first stop and proceed as with cartridge foam 22

23 546 Heat shrinking of sleeves Fig 100 Fig 101 Fig 102 Remove surplus foam after 60 minutes Clean the areas on the socket and outer jackets where the sleeves will be fitted to from PU foam, dirt and oils/greases Areas must also be kept dry Rough up the surface with sandpaper / abrasive cloth Trim back the vent plug to make it flush with the socket Fig 103 Preheat the area gently with a soft-fame Fig 104 The socket surface temperature must be at least 60 C and can be checked using the temperature indicator strips At the correct temperature the green area turns dark Fig 105 Position heat-shrink sleeves and shrink them with a soft-fame Fig 106 Position the chamfered heat-shrink sleeves pressing the sleeve against the socket on the outside The heat-shrink sleeve must lay flat against the side opposing the branch (see arrow) Fig 107 Apply only so much heat at the chamfered ends that the adhesive is activated If necessary press sleeve on by hand Fig 108 Move heat-shrink sleeve 5 cm beyond the trimmed vent plug and shrink on 23

24 55 Wall penetrations 551 Connecting through basement The RAUTHERMEX pipe routes should be as straight as possible If the RAUTHERMEX pipeline runs parallel to the building, the bend for entry into the building must have a radius of at least 25 x the value specified in Table 5 This prevents the pipe from unnecessary stress where it penetrates the wall 552 Wall seals Wall seals can be installed in field core drills or in standard wall penetrations Table 7 lists the recommended dimensions of the wall penetration for grouting the wall seals into place in the wall For standard wall penetrations a free gap of 8 cm between the outer pipe jacket and the wall must be ensured For two pipes penetrating the wall, the minimum dimensions are also listed in Table 7 Wall seals can be easier pushed onto the outer pipe jacket when REHAU lubricant is used The stepped end of the wall seal must face to the inside of the building, and the square end to the outside Install the pipe with the wall seal into the field core drill or standard wall penetration The wall seal should be at least 80 mm from the outside wall surface The opening can be sealed using conventional expansive mortar Fig 110 Wall seals, side view, in standard wall penetration Fig 111 Wall seals, front view, in standard wall penetration Fig 112 Wall seals, side view, in field core drill Fig 113 Wall seals, front view, in field core drill Fig 109 Wall seals Outer diameter Core Standard wall penetration Standard wall penetration of pipe jacket drill for 1 pipe for 2 pipes [mm] D [mm] H x L [mm] H x L [mm] x x x x x x x x x x x x x x 700 Tab 7 24

25 553 Compression wall seals For sealing RAUTHERMEX pipe in slab, ceiling or similar type penetrations compression wall seals should be used They can be used in core drills and plastic walls sleeves The minimum separation between core drills or walls sleeves must be 300 mm Note: For plastic wall sleeves, we recommend to properly secure the sleeves and prevent any movements by using brackets or clamps Where hairline cracks are created during core drilling or other construction work, we recommend sealing the entire core drill surface The maximum grade for RAUTHERMEX pipes in core drills is Watertight compression wall seal FA 80 for pressures up to 15 bar The FA 80 compression seal is to be used where penetrations must be watertight To increase the stabilisation of the pipes in the core drill, the FA 40 compression seal can be used Fig 115 Compression wall seal for water pressure up to 15 bar Fig 116 Compression wall seal for water not under pressure 555 Compression wall seal FA 40 for water not under pressure A second compression wall seal FA 40 can be used to provide additional support of the RAUTHERMEX pipe Installation The RAUTHERMEX pipes must first be uncoiled The pipe is then inserted into the penetration and properly secured in the pipe trench Place the compression seal into the core drill, align it and tighten the bolts with a torque wrench set as per table 8 Fig 117 Compression wall seal, 1 x, side view Fig 118 Compression wall seal, 1 x, front view Fig 114 Compression wall seal RTX-outer Core drill size/ Bolts Spanner Torque Diameter Inner diameter size [mm] [Nm] [mm] wall sleeve mm M mm M mm M mm M mm M mm M mm M Tab 8 Dimensions of compression wall seal 25

26 556 Prefabricated bends The prefabricated RAUTHERMEX bends are used where the required bending radius is smaller than the minimum permitted for RAUTHERMEX pipes This is usually the case in ground-level building construction Installation Install wall seal, and position prefabricated bend in the foundations The vertical end can be secured with a square timber / reinforcement bar Note: Do not remove the protective end caps until the final connections are made If there is a danger the unprotected pipe ends can get dirty or damaged by UV radiation they must be protected with a UVresistant plastic foil / tape Fig 119 Prefabricated bends for UNO and DUO pipe Ground level 1,00 m 1,50 m Fig

27 557 End caps If the end cap is inside a wall the pipe jacket and PU foam must be stripped back in the trench before the RAUTHERMEX pipe is positioned For all other cases the pipes can be placed into position first and stripped afterwards The following lengths of carrier pipe need to be exposed to complete the compression sleeve joint: Heat-shrink end caps Length RAUTHERMEX UNO Outer dia Carrier pipe A 20 to 32 mm 140 mm 40 and 50 mm 160 mm 63 to 110 mm 180 mm RAUTHERMEX DUO Outer dia Carrier pipe B 20 to 32 mm 140 mm 40 and 50 mm 160 mm 63 mm 180 mm Tab 10 Fig 121 Exposed lengths Installation of heat-shrink end cap Expose carrier pipes in accordance with Table 10 Rough up the effected area with an abrasive cloth and preheat it to over 60 C with a soft-flame Use temperature indicator strips to check the temperature! Slide on end cap and shrink Then complete compression sleeve joint Push-on End caps Length RAUTHERMEX UNO Outer dia Carrier pipe A 20 to 32 mm 90 mm 40 and 50 mm 110 mm 63 to 110 mm 130 mm RAUTHERMEX DUO Outer dia Carrier pipe B 20 to 32 mm 90 mm 40 and 50 mm 110 mm 63 mm 130 mm Tab 11 Fig 122 Heat-shrink end caps for UNO and DUO pipes Installation of push-on end caps Expose carrier pipes in accordance with Table 11 Push on end cap Then complete compression sleeve joint Fig 123 Push-on end caps for UNO and DUO pipes 27

28 56 Linear thermal expansion in trenches No expansion bellows or compensators are required for RAUTHERMEX pipes when installed in trenches, since the friction between the pipe and the soil is greater than the expansion forces of the plastic pipe 561 Linear thermal expansion when connecting to buildings To keep the thermal expansion within acceptable limits when connecting to a building RAUTHERMEX pipes should not extend more than the distances specified in Table 12 beyond the finished In case the push-on or heat-shrink end caps are positioned inside the wall (wall penetration or core drill) the dimensions given in Table 12 can be reduced by 60 mm The carrier pipe requires fixed brackets suitable for the forces listed in Table 12 Fixed brackets may be attached to the fitting body, but not to the compression sleeves fixed point Fig 124 fixed point Fig 125 Carrier pipe Max distance Max outer diameter x s to wall Anchor forces [mm] from - to X [mm] per pipe [kn] 25 x x x x x x x x x x x x x x Tab Miscellaneous 571 Pipe in sleeve system For crossing underneath buildings or for areas with difficult access, a pipe-in-sleeve installation is possible with RAUTHERMEX The bore of the sleeve pipe must be at least 2 cm bigger than the outer diameter of the RAUTHERMEX pipe jacket The RAUTHERMEX pipe can be pulled in using a winching cable and towing sock ensuring the maximum winching forces are not exceeded A lubricant applied to the RAUTHERMEX pipe jacket minimizes the pipe friction Changes in direction should only be made with the open cut installation technique 572 Installing during land development phase To develop plots where buildings will be erected at a later time, dead legs can be laid and closed off with isolating valves (available upon request) The ball valves can be insulated with the REHAU insulation kit for end stops 573 Tapping into existing lines The flexibility of the RAUTHERMEX pipes allows the subsequent installation of T- joints The network section must be taken off line for this and the water temperature must be 30 C or lower The usual contraction associated with polymer pipes installed above ground, is not present with fully bonded RAUTHERMEX pipes For this reason the carrier do not require any anchoring for cutting 28

29 6 Commissioning 61 General information The RAUTHERMEX pipes and joints must be pressure-tested before they are insulated or the trench is backfilled The pressure test can be carried out immediately after completing the compression sleeve joints 62 Pressure test with water A pressure test according to DIN (VOB) or DIN V is to be carried out with a test pressure of at least 15 x the maximum design pressure for the pipeline Test protocols should be completed containing the following information: Installation/Project details Test pressure Time the pipeline was under pressure Test date Confirmation the pressure test has been performed properly 63 As-installed drawings The actually installed pipe lengths are to be recorded and entered into an as-installed drawing 64 Flushing To remove any dirt, soil or other debris, which could have contaminated the pipeline during construction work, all pipe sections should be flushed with sufficient water 65 Heat exchanger Note: When using corrosion inhibitors or flow conditioners, confirmation of their compatibility with PE-Xa and the fitting materials is to be obtained from the manufacturer 66 Long term storage To protect the pipes from dirt and debris and the carrier pipe from UV radiation the pipe ends must be kept closed at all times Contact with potentially damaging chemicals should be avoided RAUTHERMEX pipes with pipe jackets made from PE-LD can only be stored in direct sunlight for a limited time Experience has shown that in Central Europe pipes can be stored unprotected for up to 2 years (starting at the day of manufacture) without affecting the strength of the pipes For prolonged periods of external storage or in areas with intense solar radiation sea, or at altitudes over 1,500 m, the pipes must be protected from direct sunlight When covering with tarps, good ventilation of the pipes is required to prevent any build up of heat Transparent or translucent covers are not suitable Unlimited storage is possible, if the pipes are protected from any light 7 Standards and guidelines DIN 2424 Part 2 Design plans for the utility industry, the water industry and district heating DIN 16892: 2000 Pipes made of crosslinked polyethylene (CPE) - General quality requirements, tests DIN16893: 2000 Pipes made of crosslinked polyethylene (CPE) - Dimensions DIN Miner's Rule DIN 4726 Plastic Pipelines for hot-water floor heating - General requirements DIN 4729 Pipelines made of crosslinked polyethylene for hot-water floor heating - General requirements DVGW Worksheet W531 Manufacture, quality assurance and testing of pipes from CPE for drinkingwater installation DVGW Worksheet W534 Compression joints for pipes made of CPE DVGW Worksheet W534(E) Pipe connectors and pipe connections 29

30 Notes: 30

31 Notes: 31

32 Insofar as the intended application deviates from that described in this Technical Information brochure, the user must consult REHAU and must receive express written consent from REHAU before commencing this utilization The user fails to do so, the sole responsibility for the utilization shall lie with the individual user In this case, the application, use and processing of products are beyond our control Should a case of liability arise, however, this shall be limited to the value of the goods delivered by us and used by you in all cases of damage Claims arising from granted guarantees shall become invalid in the case of intended applications that are not described in the Technical Information brochures This document is protected by copyright All rights based on this are reserved No part of this publication may be translated, reproduced or transmitted in any form or by any similar means, electronic or mechanical, photocopying, recording or otherwise, or stored in a data retrieval system The REHAU Academy: Our seminars help you achieve your goals Contact your local REHAU sales office for more information REHAU not only offers its partners innovative products that meet today's requirements with up-to-date designs Through the REHAU Academy we are able to share valuable expertise and first hand experience Our seminars are for everyone, regardless of whether you are a craftsman, planner, or architect, an engineer, distributor or in sales, from a large or small company They enable you to acquire the greater expertise needed for more success in the market wwwrehaucom RAUNET@REHAUcom AUS: Adelaide: 3 Lloyd St, St Mary s 5042, Tel: 6 18/ Brisbane: 27 Deakin Street, Brendale Queensland 4500, Tel: 6 17/ Melbourne: 9-11 Endeavour Way, Braeside Victoria 3195, Tel: 6 13/ Perth: Unit 2/4 Brolo Court, O Connor WA 6163, Tel: 6 18/ Sydney: 91 Derby Street, Silverwater New South Wales 2128, Tel: 6 12/ CDN: Moncton: 327 Murray Road, Little Shemogue, New Brunswick E4M 3P3, Tel: 5 06/ Montreal: 625 Lee Avenue, Baie d Urfé, Quebec, H9X 3S3, Tel: 5 14/ St John s: 13 Sagona Avenue, Donovan s Industrial Park, Mt Pearl, Newfoundland, A1N 4P8, Tel: 7 09/ Toronto: 1149 Pioneer Road, Burlington, Ontario, L7M 1K5, Tel: 9 05/ Vancouver: th avenue, Unit # 102, Langley, BC, V4W 3X5, Tel: (6 04) Winnipeg: 11 Plymouth Street, Unit 100, Winnipeg, Manitoba, R2X 2V5, Tel: 2 04/ GB: Birmingham: Tameside Drive, Holford Way, Witton, Birmingham, B6 7AY, Tel: 01 21/ Glasgow: Phoenix House, Phoenix Crescent, Strathclyde Business Park Bellshill, North Lanarkshire, ML4 3NJ, Tel: / Manchester: Brinell Drive, Irlam, Manchester, M44 5BL, Tel: 01 61/ Slough: Waterside Drive, Langley, Slough, SL3 6EZ, Tel: / For the automotive sector, please contact the Ross-on-Wye Sales Office: Hill Court, Walford, Ross-on-Wye, Herefordshire HR9 5QN, Tel: / HK: Hongkong: 22/F, Silver Tech Tower, 26 Cheung Lee Street, Chai Wan, Tel: IRL: Dublin: 9 Saint John s Court Business Park, Swords Road, Santry, Dublin 9, Tel: 1/ NZ: Auckland: 60b Cryers Road, East Tamaki, Auckland, Tel: 6 49/ SGP: Singapore: 1 King George s Avenue, # REHAU Building, Singapore , Tel: USA: Chicago: 901 S Route 53, Suite H, Addison, Illinois Tel: (6 30) Dallas: 3224 Highway 67 East, Suite 205, Mesquite, Texas 75150, Tel: 9 72/ Detroit: West Twelve Mile Rd, Suite 305, Farmington Hills, Michigan 48331, Tel: 2 48/ Grand Rapids: 5075 Cascade Rd SE, Suite A, Grand Rapids, Michigan 49546, Tel: 6 16/ Greensboro: 2606 Phoenix Drive, Suite 810, Greensboro, North Carolina 27406, Tel: 3 36/ Los Angeles: 1501 Railroad Street, Corona, California , Tel: 9 51/ Minneapolis: 7710 Brooklyn Blvd Suite 207, Brooklyn Park, Minnesota 55443, Tel: 7 63/ For European exporting companies and if there is no sales office in your country please contact: REHAU AG+Co, Export Sales Office, PO Box 30 29, Erlangen/Germany, Tel: +49 (0) , ExportSalesOffice@REHAUcom EN 106