McAlpine 1½” Space Saver With Self-Closing Waste Valve (WV-1)

Space Saver with Self-Closing Waste Valve

The Space Saver with Self-Closing Waste Valve is an innovative solution designed to maximize storage space below your wash hand basin or bath within a cabinet or furniture. This product is available in two versions: the WHB-1 for wash hand basins and the WV-1 for baths, each featuring a self-closing valve that efficiently manages waste discharge while preventing foul odours and sewer gases from entering your building.

These space savers utilize an internal membrane that opens under water pressure, allowing the discharge to flow freely. Once the water stops, the membrane closes to form a seal, preventing any backflow of unpleasant odours. The design also allows air to be drawn into the discharge pipe during negative pressure situations, eliminating the need for secondary ventilation and providing more flexibility in plumbing design. Cleaning the valve is straightforward and can be done without disassembling the discharge pipework, ensuring ease of maintenance.

Features and Benefits

• Maximizes storage space under the basin or bath
• Internal membrane opens and closes automatically under water pressure
• Prevents foul odours and sewer gases from entering the building
• Allows air intake during negative pressure, eliminating the need for secondary ventilation
• Easy to clean without disassembling the discharge pipework
• Membrane seal remains closed, preventing evaporation or drying out

NOTE: WV-1 is not recommended for installation on kitchen or utility sinks.