Pressure Relief Valves

Alpeco are the UK distributors of OCV Pressure Relief Valves


The OCV 108 Pressure Relief / Back Pressure control valve’s main function is the maintain the line pressure in a liquid piping systems within relatively narrow limits.

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.

OCV 108 Pressure Relief Back Pressure control Valve

OCV Pressure Relief Valve Features

  • Operates automatically off line pressure.
  • Heavy-duty, nylon-reinforced diaphragm.
  • Rectangular-shaped, soft seat seal provides drip-tight Class VI closure.
  • Diaphragm assembly Guided top and bottom.
  • Throttling seat retainer for flow and pressure stability.
  • Easily maintained without removal from the line.
  • Replaceable seat ring.
  • Alignment pins assure proper reassembly after maintenance.
  • All OCV valves are factory tested.
  • OCV Valves are serial numbered and registered to facilitate replacement parts and factory support.

Pressure Relief Valve Specifications