Flow-Tek Pressure Relief/Sustaining Valve is a hydraulically operated, diaphragm actuated control valve that can fulfill either of two separate functions.
When installed in-line, it sustains minimum pre-set, upstream (back) pressure regardless of fluctuating flow or varying downstream pressure. When installed as a circulation valve, it relieves excessive line pressure when above maximum pre-set.

  • Prioritizing pressure zones
  • Ensuring controlled pipeline fill-up
  • Preventing pipeline emptying
  • Pump overload & cavitation protection
  • Safeguarding pump minimum flow
  • Excessive line pressure protection

Pressure Relief Valve is a hydraulically operated, pilot-controlled, modulating valve designed to maintain constant upstream pressure within close limits. This valve can be used for pressure relief, pressure sustaining, backpressure, or unloading functions in a by-pass system.

  • Food Process Industries
  • Pharmaceutical Manufacturing Industries
  • Industrial Manufacturing Industries
  • Petroleum Industries
  • Aviation industries
  • Power plants.
  • Process industries.
  • Chemical and petrochemical plants.

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