NON RETURN VALVE NR0250A NRO315A 55 62 18 20 250 315 250,8 316 272,9 338,9 19,5-26,7 20,8-28,4 144 160 566 728 6,2 7,7 A B D D1 D2 G L1 L2 S NRC32G NRC40G NRC50G 32 40 50 56 56 56 Di De NRO50G 37 NON RETURN VALVE WITH TO GLUE AND LOCK NON RETURN VALVE WITH TO GLUE NON RETURN VALVE WITHWITH O’RING MATERIAL: PVC. FEATURES: • Equipped with manual locking device of the closing plate; • Rubber sealing ring inside the cup; • Removable cover for inspection and service. COLOUR: Red RAL8023. MATERIAL: PVC. FEATURES: • Removable cover for inspection and service • 40 mm and 32 mm diameter valves are supplied with a reduction to obtain the desired internal diameter: the reductions are glued inside the inlet and outlet passages of the valve using FIRST PVC glue. COLOUR: Grey RAL7037. MATERIAL: PVC. FEATURES: • Removable cover for inspection and service; • The article includes the non-return valve code NRC50G, onwhich a piece of pipe Ø50 mm on the outlet and an adapter on the inlet are glued, having an elastomeric sealing ring (gasket) with an internal diameter of 50 mm. COLOUR: Grey RAL7037.
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