Reliance Water Controls Highflow Mixing Valve The Reliance Water Controls 15mm compression thermostatically controlled high-flow mixer valve is capable of operating with a hot/cold or cold/hot pressure ratio imbalance of up to 10:1. This valve is made from the bronze material with a nickel-plated finish and an internal PTFE coating. Connections are via the compression fixings using either a 15mm or 22mm pipe. All units incorporate check valves to prevent cross-flow between supplies and strainers to reduce damage due to contamination. Features and Benefits Maximum working pressure is 6bar<BR/>Temperature setting ranges between 35°C and 60°C