McAlpine 1 1/2" Self Closing Valve MACVALVE-2

McAlpine 1 1/2" Self Closing Valve MACVALVE-2 40mm

Self Closing Waste Valve - Loose Nut x Compression

• BSP female inlet nut x universal compression outlet
•  Membrane opens under water pressure to allow discharge to flow freely and then closes to form a seal to prevent foul odour or sewer gas entering the building
•  Can be fitted in horizontal or vertical position
•  Can be fitted in installation where a non-return valve can be of benefit to the plumbing installation
•  No water seal so it can never dry out through evaporation or lack of use of an appliance as the membrane remains sealed
•  Not recommended for use with shower trays unless there is access for maintenance
•  Patent Pending