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In many liquid piping systems, it is vital that line pressure is maintained within relatively narrow limits. This is the function of the 108 Pressure Relief / Back Pressure Series of the OCV control valves. Installed in the main flow line. the standard Model 108-2 acts as a back-pressure 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.
  • 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.
  • Quick opening with controlled closing.
Unit of Measure

Specifications

Flange Standard

N/A ANSI B16.42

Flange Class

N/A 150 lbs

Flange Face

N/A Flat

Maximum Working Pressure

N/A 250 psi

Type

N/A Pressure Relief Control

Series

N/A 108

Approvals

Approvals

N/A
Factory Mutual system

NSF

Quality system registered to ISO 9001;2000

UL