The Combination Non-Return Isolating Valve combines the mandatory functions of an isolating valve and non-return valve for the installation of pressurised water heaters.
The valve provides isolation and prevents the backflow of water from a water heater to the mains line. The device serves the dual purpose of protecting the mains supply from contamination and preventing the loss of water that has already been heated. The isolating valve component is useful as a means of controlling inlet water supply to unvented storage water heaters.
RMC Combination Non-Return Isolating Valve is available in 15mm and 20mm configurations.
|15mm Female BSP||NI50 Duo Valve||NI501|
|15mm Internal Flare||NI50-A Duo Valve||NIA501|
|15mm Male Compression||NI50-C Duo Valve (Inc. nuts, copper and nylon olives)||NIC501|
|15mm Female BSP||NR50-S Non-Return with Strainer||NRS501|
|15mm Female BSP||NRI501-S Trio||NRIS501|
|20mm Female BSP||NI75 Duo Valve||NI701|
|20mm Internal Flare||NI75-A Duo Valve||NI703|