Masterguard Commercial Tempering Valve

Masterguard 1″ FBSP Commercial Tempering Valve
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High flow and temperature rate tempering valve for blending hot and cold water to limit overall hot water temperature (commercial use)

Reliance Valves Masterguard Commercial Tempering Valve is a high-quality thermostatic tempering valve for system temperature control and commercial hot water distribution. It is designed for use in hot water cylinder applications.

Designed for very high flow rates and temperatures, the valve is primarily used where control and distribution of large sanitary mixed water flows is required. Normally installed within a plant room, Masterguard blends hot and cold water to a safer temperature (typically 50°C) for distribution throughout the building. It also has integrated fixing points to allow for easy wall or floor fixing and can be easily orientated to match inlet pipes.

Features and benefits

  • 4-in-1 tempering valve with isolation valves, crossflow protection valves and strainers
  • Very high flow rates with an extremely stable outlet temperature
  • Adjustable set temperature mechanism with locking feature
  • Integrated fixing point allows easy wall or floor mounting
  • Simple construction with minimal moving parts reduces maintenance
  • Suitable for installation to hot water outlet pipework from a cylinder
  • Compatible with copper pipe only


WRAS approved product
SKUDescriptionModelBSP ″Accreditations
MIX83004Masterguard 1″ FBSP Commercial Tempering Valve830 Model1
MIX84004Masterguard 1 1⁄4″ FBSP Commercial Tempering Valve840 Model1 1⁄4
MIX85004Masterguard 1 1⁄2″ FBSP Commercial Tempering Valve850 Model1 1⁄2
MIX86004Masterguard F 2″ FBSP Commercial Tempering Valve860 Model2