101 Series Sealed Heating System Pressure Relief Valve

Disclaimer: All images are for illustrative purposes only.

Discharges water off the system at a set pressure in the event of heating system over pressurisation

Reliance Valves 101 Series Sealed Heating System Pressure Relief Valves are most commonly used as a safety mechanism within sealed heating systems.

The pressure relief valve is set to the correct pressure upon installation. When the pressure rises within the system and the set pressure is reached, the pressure release valve opens and discharges into the atmosphere. This prevents the pressure within the system from reaching dangerous levels that could damage the system and be harmful to anyone in the immediate vicinity.

Features and benefits

  • Diaphragm design gives improved resistance to scaling and extends lifespan
  • Straightforward removal of single-piece cartridge allows access to seat for cleaning or cartridge replacement
  • Set relief pressure range from 2.0 bar - 3.0 bar gives flexibility of system design
  • Available with FSBP or MBSP/FBSP connections for complete installation flexibility
  • Suitable for heating applications only

Accreditations

WRAS approved product
SKUDescriptionModelBSP Inlet Size ″BSP Outlet Size ″Accreditations
PREL101001101 Series 1⁄2″ FBSP × 1⁄2″ FBSP 2 Bar Pressure Relief ValveFemale Connections Pre-set at 2 Bar1⁄21⁄2
PREL101002101 Series 1⁄2″ FBSP × 1⁄2″ FBSP 2.5 Bar Pressure Relief ValveFemale Connections Pre-set at 2.5 Bar1⁄21⁄2
PREL101003101 Series 1⁄2″ FBSP × 1⁄2″ FBSP 3 Bar Pressure Relief ValveFemale Connections Pre-set at 3 Bar1⁄21⁄2
PREL101011101 Series 3⁄4″ FBSP × 3⁄4″ FBSP 2 Bar Pressure Relief ValveFemale Connections Pre-set at 2 Bar3⁄43⁄4
PREL101012101 Series 3⁄4″ FBSP × 3⁄4″ FBSP 2.5 Bar Pressure Relief ValveFemale Connections Pre-set at 2.5 Bar3⁄43⁄4
PREL101013101 Series 3⁄4″ FBSP × 3⁄4″ FBSP 3 Bar Pressure Relief ValveFemale Connections Pre-set at 3 Bar3⁄43⁄4
PREL101014101 Series 3⁄4″ MBSP × 3⁄4″ FBSP 2 Bar Pressure Relief ValveMale × Female Connections Pre-set at 2 Bar3⁄43⁄4
PREL101015101 Series 1⁄2″ MBSP × 1⁄2″ FBSP 2 Bar Pressure Relief ValveMale × Female Connections Pre-set at 2 Bar1⁄21⁄2
PREL101016101 Series 1⁄2″ MBSP × 1⁄2″ FBSP 3 Bar Pressure Relief ValveMale × Female Connections Pre-set at 3 Bar1⁄21⁄2
PREL101023101 Series 3⁄4″ MBSP × 3⁄4″ FBSP 3 Bar Pressure Relief ValveMale × Female Connections Pre-set at 3 Bar3⁄43⁄4
PREL101024101 Series 1⁄2″ MBSP × 1⁄2″ FBSP 2.5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 2.5 Bar1⁄21⁄2
PREL101027101 Series 3⁄4″ MBSP × 3⁄4″ FBSP 2.5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 2.5 Bar3⁄43⁄4
WRAS