LavaTap Heat Pump Anti Freeze Valve 1 1/4" Male BSP - Frost Protection Valve

Product description

The LavaTap 1 1/4 inch anti freeze valve protects the outdoor pipework of a monobloc air source heat pump from frost without filling the system with glycol. Normally the heat pump guards itself against frost by running its circulating pump and compressor. In a winter power cut, or if the unit locks out, nothing moves the water and the pipes outside can freeze and split. This valve needs no electricity: a thermostatic sensor in the water opens the drain when the water falls to 3°C, lets it run to waste until warmer water from inside the house reaches the valve, and closes again at 4°C.

Specification: G 1 1/4 inch (DN32) male BSP parallel thread on both ends, 60 mm end to end and 125 mm tall. CW617N brass body, stainless steel springs and EPDM seals. Maximum working pressure 10 bar. Water temperature 0 to 65°C, outdoor air -30 to 60°C. A vacuum breaker on top lets air in so the pipe drains freely, and an automatic shut-off cock means the sensor cartridge can be changed without draining the system.

Fitting: one valve on the flow and one on the return, outdoors near the heat pump, upright with the drain outlet pointing down, at least 15 cm above the ground and 10 cm apart. Do not insulate the valve, shelter it from rain, snow and direct sun, keep the system pressurised and route the drain where the water can run away. For water-only systems.

Will it fit? It suits heat pumps and pipework with 1 1/4 inch connections, such as the Vaillant aroTHERM plus range (G 1 1/4 heating connections). Many other monoblocs, including Samsung EHS Mono R290 and Daikin Altherma 3 M, use 1 inch: choose the LavaTap 1 inch male x female or 28mm compression valve instead.

Designed for monobloc air source heat pump installations in the UK.

In the box: 1 x anti freeze valve.