McAlpine Great for fitting horizontally or vertically. Perfect to stop smells and backflow. With no water seal, it can never dry out through evaporation or lack of use, as the membrane remains sealed.
Can be fitted in installations where a non-return valve can be of benefit to the plumbing installation
Can be fitted in both horizontal and vertical position
Can be used to take the discharge from a pressure relief valve on an unvented domestic hot water storage system
Includes BSP female inlet nut x universal compression outlet
No water seal so it can never dry out through evaporation or lack of use of an appliance as the membrane remains sealed
Comes with a rich white finish
Not recommended for use with shower trays unless there is access for maintenance
Patent Pending
Technical specification
ERP (Energy Efficiency)NPipe Connection Type[Compression]TypeValveMaterialAcrylonitrile butadiene styrene and SiliconeLength175mmDiameter40mmColourWhiteSupplier Part NumberMACVALVE-2Range DescriptionTrapsBrand NameMcalpine
Reviews
McAlpine Self Closing Waste Valve White 38.1mm Loose Nut X Compression Macvalve-2