Pressure Relief Valve / Pressure Sustaining Valves


  • Information About Pressure Relief Valve

Applicable Standard

In many liquid piping systems, it is vital that line pressure is maintained within relatively narrow limits. This is the function of the Pressure Relief / Back Pressure Series of the HYPER valves. Installed in the main flow line, the standard Model acts as a backpressure or pressure sustaining valve. In this configuration, the valve maintains a constant upstream pressure regardless of fluctuating downstream demand. When used in a bypass line, the same model will function as a relief valve, protecting the system against potentially damaging surges.

Product Applications

  • Marine & Mining.
  • Distillery Plant.
  • Fertilizer Plant.
  • Pulp & Paper mill.
  • Industrial Chemical Piping.
  • Oil, Gas, Petrochemical Plant.
  • Textile and Process Industries.
  • Thermal and Nuclear Power Plant.

Product Specification

  • Pressure Class: 150 Cl & 300 Cl
  • Temperature Range: -40 Deg C To 120 Degree C
  • Material: Stainless Steel
  • Media: Air, Water, Gas
  • Valve Size: 1" to 12"
  • Pressure: 0 To 35 Kg/cm2
  • Brand: HYPER
  • Seat: Metal Seat / Soft Seat
  • End Connection: Flange End
  • Design: Cast steel, Full lift

Product Features

  • Relief: Maintains a constant inlet pressure by relieving excess high pressure.
  • Sustaining: Prevents pressure from dropping below a minimum.
  • Inlet pressure is accurate over a wide range of flow.
  • Inlet pressure is adjustable with a complete range of control springs.
  • Unique design for steam, liquid, vapor or gas.