Heating Control Valves
  • PTR
    Pressure and Temperature Relief Valve
  • ECV
    Expansion Control Valve
  • TVA
    Tempering Valve Assemblies Standard
  • TVA – HP
    Tempering Valve Assemblies (High Performance)
  • TCV
    Temperature Control Valve - Standard
  • TMV
    Thermostatic Mixing Valve
  • TMV – PIB
    Thermostatic Mixing Valve - Plumbed In Box
  • Hi-Flo 25
    Hi-Flo 25 Mixing Valve
  • TRI-SET
    TRI-SET Selectable Pressure Limiting Valve
  • PRV
    Pressure Reduction Valve
  • NRI-PRV
    Non Return Isolation - Pressure Reduction Valve Combination
  • PRVB
    Pressure Reduction Valve Boundary
  • PRVB20-BV20
    Boundary Pressure Reduction Valve
  • QPL-20
    Noise Reduction Valve: QPL-20
  • NRIBV
    Non Return & Isolating Valves

NRI-PRV

Non Return Isolation – Pressure Reduction Valve Combination

A non return isolation pressure reduction valve (NRI-PRV) can be a valuable addition to many piping systems. If the incoming water pressure is too high, this can put unnecessary strain on water heaters, pipe work, plumbing joints, taps and tap washers. It can increase the risk of burst hoses on washing machines, water leaks and possibly magnify any existing water hammer problems.

The valves are factory set at 500 kPa. The down stream pressure is adjustable from 150 to 600 kPa by turning the screw on top of the plastic cover. Clockwise to increase pressure and anticlockwise to reduce pressure. A gauge port is standard on the body of the valve so that a gauge can be fitted to monitor the downstream pressure.

For ease of maintenance, the valve has a removable cartridge and strainer, containing all the regulating components which can be easily accessed through the top of the valve.

Features

  • Adjustable Range 150 – 600 kPa
  • Compact design
  • Factory set at 500 kPa
  • DZR brass valve body
  • Internal strainer
  • High Flow rate
  • Non Return Isolating Valve incorporated
  • Valve insulation included

NRI-PRV Brochure