McAlpine MACVALVE-3 Waterless Self-Sealing Tundish – 22mm x 32mm Waste Trap

McAlpine MACVALVE-3 Waterless Self-Sealing Tundish – 22mm x 32mm Waste Trap

• 32mm Waterless Trap Supplied with Tundish Adaptor to 22mm
• Can be used to take the discharge from a pressure relief valve on an unvented domestic hot water storage system
• 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
• No water seal so it can never dry out through evaporation or lack of use of an appliance as the membrane remains sealed
• Suitable for Horizontal or Vertical Installation

Details

The McAlpine MACVALVE-3 is an innovative, waterless self-sealing tundish designed for use with unvented water heaters and boiler discharge. Specifically, it features a 22mm compression inlet and a 32mm universal outlet. Unlike traditional traps, it utilizes a unique self-sealing membrane that opens under water pressure and closes tightly afterward. Furthermore, the transparent body allows for easy visual inspection of any discharge. Consequently, it provides a safe, hygienic, and space-saving solution for modern heating systems.

Installing a discharge pipe for a boiler or unvented cylinder often reveals a frustrating maintenance risk: traditional water-filled traps eventually dry out. Specifically, when a trap dries out, it allows dangerous sewer gases and foul odors to backflow into your home. This is a common issue in utility rooms or cupboards where discharge is infrequent. Moreover, standard tundishes can splash or leak if not fitted with a secondary trap. However, the McAlpine MACVALVE-3 eliminates this struggle. Because its membrane is self-sealing, it creates a permanent air break that works without any water at all. Therefore, you can ensure your system remains odor-free and compliant with building regulations even during long periods of inactivity.

Brand:

• McAlpine

MPN:

• MACVALVE-3