102 Series Potable Water Pressure Relief Valve

Disclaimer: All images are for illustrative purposes only.

Discharges water off the system at a set pressure in the event of cold water over pressurisation to a unvented cylinder

Reliance Valves 102 Series Potable Water Pressure Relief Valves are designed to protect an unvented system from over pressurisation. The valves are pre-set and locked to a particular pressure, and if the system exceeds this pressure, the valve will lift off the seat and water will discharge from the valve to the waste. This is the first safety device in line within an unvented system.

The pressure relief valves are designed with a single piece cartridge and are available in different pressures ranging from 3.5 - 8 bar, as well as multiple connection sizes to allow for flexible installation.

Features and benefits

  • Rapid removal of single-piece cartridge for cleaning or replacement
  • Diaphragm design gives improved resistance against scale
  • Protects against over pressurisation
  • Multiple connections for flexible installation
  • Set relief pressure range from 3.5 - 8.0 bar
  • Suitable for cold water use only

Accreditations

WRAS approved product
SKUDescriptionModelOutlet Size mmBSP Inlet Size ″BSP Outlet Size ″Accreditations
PREL102001102 Series 1⁄2″ FBSP × 1⁄2″ FBSP 6 Bar Pressure Relief ValveFemale Connections Pre-set at 6 Bar1⁄21⁄2
WRAS
PREL102003102 Series 1⁄2″ MBSP × 15mm 5 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 5 Bar151⁄2
WRAS
PREL102004102 Series 1⁄2″ FBSP × 1⁄2″ FBSP 3.5 Bar Pressure Relief ValveFemale Connections Pre-set at 8 Bar1⁄21⁄2
WRAS
PREL102005102 Series 1⁄2″ FBSP × 1⁄2″ FBSP 6 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 6 Bar151⁄2
WRAS
PREL102008102 Series 1⁄2″ FBSP × 1⁄2″ FBSP 5 Bar Pressure Relief ValveFemale Connections Pre-set at 5 Bar1⁄21⁄2
WRAS
PREL102009102 Series 1⁄2″ MBSP × 15mm 3.5 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 3.5 Bar151⁄2
WRAS
PREL102014102 Series 1⁄2″ FBSP × 1⁄2″ FBSP 3.5 Bar Pressure Relief ValveFemale Connections Pre-set at 3.5 Bar1⁄21⁄2
WRAS
PREL102018102 Series 3⁄4″ MBSP × 3⁄4″ FBSP 6 Bar Pressure Relief ValveMale × Female Connections Pre-set at 6 Bar3⁄43⁄4
WRAS
PREL102020102 Series 3⁄4″ MBSP × 22mm 3.5 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 3.5 Bar223⁄4
WRAS
PREL102024102 Series 3⁄4″ MBSP × 3⁄4″ FBSP 8 Bar Pressure Relief ValveMale × Female Connections Pre-set at 8 Bar3⁄43⁄4
WRAS
PREL102027102 Series 3⁄4″ MBSP × 22mm 6 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 6 Bar223⁄4
WRAS
PREL102031102 Series 3⁄4″ MBSP × 3⁄4″ FBSP 6 Bar Pressure Relief ValveFemale Connections Pre-set at 6 Bar3⁄43⁄4
WRAS
PREL102040102 Series 1⁄2″ MBSP × 1⁄2″ FBSP 3.5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 3.5 Bar1⁄21⁄2
WRAS
PREL102041102 Series 1⁄2″ MBSP × 1⁄2″ FBSP 5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 5 Bar1⁄21⁄2
WRAS
PREL102042102 Series 1⁄2″ MBSP × 1⁄2″ FBSP 6 Bar Pressure Relief ValveMale × Female Connections Pre-set at 6 Bar1⁄21⁄2
WRAS
PREL102043102 Series 1⁄2″ MBSP × 1⁄2″ FBSP 8 Bar Pressure Relief ValveMale × Female Connections Pre-set at 8 Bar1⁄21⁄2
WRAS
PREL102044102 Series 1⁄2″ MBSP × 15mm 8 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 8 Bar151⁄2
WRAS
PREL102045102 Series 3⁄4″ FBSP × 3⁄4″ FBSP 3.5 Bar Pressure Relief ValveFemale Connections Pre-set at 3.5 Bar3⁄43⁄4
WRAS
PREL102046102 Series 3⁄4″ FBSP × 3⁄4″ FBSP 5 Bar Pressure Relief ValveFemale Connections Pre-set at 5 Bar3⁄43⁄4
WRAS
PREL102047102 Series 3⁄4″ FBSP × 3⁄4″ FBSP 8 Bar Pressure Relief ValveFemale Connections Pre-set at 8 Bar3⁄43⁄4
WRAS
PREL102048102 Series 3⁄4″ MBSP × 3⁄4″ FBSP 3.5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 3.5 Bar3⁄43⁄4
WRAS
PREL102049102 Series 3⁄4″ MBSP × 22mm 5 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 5 Bar223⁄4
WRAS
PREL102050102 Series 3⁄4″ MBSP × 22mm 8 Bar Pressure Relief ValveMale × Compression Connections Pre-set at 8 Bar223⁄4
WRAS
PREL102118102 Series 3⁄4″ MBSP × 3⁄4″ FBSP 5 Bar Pressure Relief ValveMale × Female Connections Pre-set at 5 Bar3⁄43⁄4
WRAS