SM152 Pressure Relief Valve

The SM152 Relief Valve provides protection against high pressure in unvented hot water system applications. Tested and certified to CE standard they are supplied for use with pressurised unvented hot water cylinders. The SM152 is supplied with preset pressure ratings of between 2.0 and 10.0 bar.



  • Factory preset pressure and/or temperature settings
  • Tamperproof adjustment
  • Compact construction
  • High capacity discharge
  • Pressure Relief Safety Valve
  • Easing gear



  • 1/2" or 3/4" BSP connections
  • Chrome plated models available
  • Different set pressures available