Water service vacuum relief valve. Automatically vents a closed system, if vacuum occurs. Allows air to enter a system, relieving a vacuum condition which could syphon the water from the system and burn out a water heater or collapse a tank.
Specification : Maximum working pressure : 200 p.s.i. (13.8 bar) Maximum temperature : 121°C Size : 1/2" BSP male inlet connection Venting capacity : 425 litres/minute (air)
https://www.bes.co.uk/1-2in-bsp-pm-water-service-vacuum-relief-valve-13181/35779Water Service Vacuum Relief Valve - 1/2" BSP PMhttps://www.bes.co.uk/media/catalog/product/1/-/1-2in-bsp-pm-water-service-vacuum-relief-valve_min_13181_P_1.jpg9.449.44GBPInStock/Plumbing Supplies/Brassware/Pressure Reducing Valve41371271045Water service vacuum relief valve. Automatically vents a closed system, if vacuum occurs. Allows air to enter a system, relieving a vacuum condition which could syphon the water from the system and burn out a water heater or collapse a tank.<br/><br/>Specification :<br/>Maximum working pressure : 200 p.s.i. (13.8 bar)<br/>Maximum temperature : 121°C<br/>Size : 1/2" BSP male inlet connection<br/>Venting capacity : 425 litres/minute (air)Unbranded00https://www.bes.co.uk/media/catalog/product/1/-/1-2in-bsp-pm-water-service-vacuum-relief-valve_min_13181_L_1.jpgadd-to-cartfacet_type:Vacuum Relief Valvespecial_price:9.440000more_sizes:13182products_related:21064,23524,10481,21451,12242,20923,11355,6565,21382,17884,21031,10721sku:13181Vacuum Relief Valve1318221064,23524,10481,21451,12242,20923,11355,6565,21382,17884,21031,10721131819.440000No{"Connection":"BSP PM","Size":"1\/2"","Type":"Vacuum Relief Valve"}Unbranded1/2"