CASAFLEX district heating pipe System description System description (general) System description (data) CASAFLEX UNO range, heating, 16 to 25 bar CASAFLEX DUO range, heating, 16 bar Planning, design engineering Pressure loss chart Heat loss Components T-joint Flex-T-branch 45°, branch - main pipe, plastic casing pipe Flex-T-branch 45°, with and without tapping cock Y-branch pipe Type G (straight) Y-branch pipe CASAFLEX DUO Joint Connector, CASAFLEX UNO, DN 20 - DN 80 (PN 16) Connector Mini, CASAFLEX UNO, DN 20 - DN 80 (PN 16) Connector, CASAFLEX UNO, DN 20 - DN 50 (PN 25) Connector, CASAFLEX UNO, DN 65 - DN 80 (PN 25) Connector, CASAFLEX UNO, DN 100 (PN 16) Connector, CASAFLEX DUO, DN 20 - DN 50 (PN 16) Installation set for compression connection CASAFLEX - Mini Accessories: PUR foam containers, pipe warning tape Wall seal for wall openings Ring seal for core bore / fiber cement liner pipe - impermeable to pressure from water Underground construction, installation Pipe routing Trench dimensions Connection (rigid/flexible): CASAFLEX - plastic casing pipe Entry into building: Fixed-point forces Entry into building: Wall opening Entry into building: Core bore Shaft structures: Entry into building Construction work: Open trench lengths Open installation 06.6.2018 Subject to technical changes BRUGG PIPESYSTEMS Flexible solutions

CASAFLEX district heating pipe System description 1. General CASAFLEX district heating pipe is the registered trade name for a flexible house connection pipe from BRUGG Pipe Systems. It is ideal for use in small and midsize district and local heating networks, in industrial and agricultural applications and in solar collector plants and swimming pool installations. Max. temp. for continuous operation TBmax 160 °C* Max. Peak temperature Tmax 180 °C Max. permitted operating pressure PN 16 to PN 25 CASAFLEX district heating pipe has a spiral-corrugated carrier pipe made of stainless steel. The design...

CASAFLEX district heating pipe 1. Carrier pipe Materials Requirements: Corrugated carrier pipe made of nickel chromium steel X5 CrNi 18-10 (1.4301, AISI 304) or X2 CrNiMo 17-12-2 (1.4404, AISI 316L) Steel quality to EN 10088 2. Thermal insulation Material: CFC-free, cyclopentane-blown polyisocyanurate rigid foam (PIR) with 150 value: 0.025 W/mK. PIR insulation Reference temperature °C CASAFLEX value Test standard Percentage of closed cells - > 90 % EN 253 Water absorption after 24 hours - < 10 % EN 253 3. Expanded metal mesh Material: Steel Purpose: Mechanical...

CASAFLEX district heating pipe I CFL 4.115 1 Stainless steel carrier pipe 2 PIR foam 3 Expanded metal mesh 4 Barrier film 5 PE-LD casing 6 Monitoring wires Type DN Inches Inner pipe Outer casing Minimum Volume Weight Maximum delivery lengths d x d1 x s D Bending radius Inner pipe Coil1) Coil21 Coil3) Coil4' s = Material strength/Wall thickness 1) Coil dimensions 0 2800 x 800 mm (width) 2) Coil dimensions 0 2800 x 1200 mm (width) 3) Coil dimensions 0 3000 x 1200 mm (width) 4) Coil dimensions 0 3000 x 1600 mm (width) just ex work Wunstorf Supplied in drums on request Please...

CASAFLEX district heating pipe Structure 1 Stainless steel carrier pipe 2 PIR foam 3 Expanded metal mesh 4 Barrier film 5 PE-LD casing 6 Monitoring wires CASAFLEX DUO Type DN Inches Inner pipe Outer casing Minimum Volume Weight Maximum delivery lengths d x d, x s D Bending radius Inner pipe Coil11 Coil2'1 Coil3'1 Coil4'1 06.6.2018 Subject to technical changes BRUGG PIPESYSTEMS Flexible solutions s = Material strength/Wall thickness Max. permitted operating temp. Tmax. 130 °C (not available in Germany) 1) Coil dimensions 0 2800 x 800 mm (width) 2) Coil dimensions 0 2800...

CASAFLEX district heating pipe Pressure loss chart Water temperature 80 °C Q · 860 m≈ ˙ ∆T m = Flow rate in kg/h ˙ Q = Power requirement in kW ∆T = Temperature difference VL (flow) / RL (return) in °C Mass flow rate m kg/h ˙ Example: Mass flow rate 7000 kg/h; CASAFLEX type CFL 75 –> Pressure loss 90 Pa/m

CASAFLEX district heating pipe CASAFLEX UNO Heat loss q [W/m] for one UNO pipe *not available in Germany Pipe distance: a = Coverage height: H = Ground temperature: TE = Soil conductivity: XE = Conductivity of PIR foam: XP!R = **Conductivity of PUR foam: XP!R = Conductivity of PE casing: XPE = 0.10 m 0.60 m 10 °C 1.2 W/mK 0.0250 W/mK at average temperature of 50 °C 0.0234 W/mK at average temperature of 50 °C 0.43 W/mK Heat loss during operation: q = U (Tb - Te) [W/m] U = Heat transfer coefficient [W/mK] TB = Average operating temperature [°C] TE = Average...

CASAFLEX district heating pipeT-joint CASAFLEX connected to pre-insulated steel pipe Structure of T-joint Li_ C_3 T-piece, pre-insulated steel pipe Shrink-on hoop Shrink sleeve pipe In-situ PUR foam Detection wires CASAFLEX connector CASAFLEX pipe 06.6.2018 Subject to technical changes BRUGG PIPESYSTEMS Flexible solutions

CASAFLEX district heating pipe Flex-T-branch, 45° Branch, main pipe CASAFLEX to steel pipe - 45° connection Type designation e.g.: Swing joint,160/140 160 = 0A main pipe 140 = 0A junction Swing joint T-branch, steel pipe with CASAFLEX junction Main pipe Junction Branch pipe Type Swing joint Type Subject to technical changes Flexible solutions

CASAFLEX district heating pipe Flex-T-branch, 45° with and without tapping cock Insulated steel pipe – Flex-T-branch 45°, with or without tapping cock ØA Flex-branch pipe Pre-insulated steel pipe Tapping cock Pre-insulated steel pipe Flex-branch pipe for connection with or without tapping cock CASAFLEX DN Junction ØA Type Type: Flex-branch pipe without tapping cock mm CFL 22/ 91 20 110 CFL 30/111 25 110 CFL 39/126 32 140 CFL 48/126 40 140 CFL 60/142 50 140 Junction ØA Type: Flex-branch pipe with tapping cock, through passage full reduced mm mm 110 110 110 110 140 140 140 140 – 140 Execution example...