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Gal Valve - 100 Series

Gal Valve - 100 Series


The direct sealing diaphragm valves were introduced to the world market for the first time by DOROT CONTROL VALVES in1982. This valve is operated by the pressure of the pipeline and is used for various control applications in water supply, fire protection, industrial, sewage and irrigation systems.

The only moving component is a reinforced diaphragm, which:

  • Drip tight seals the liquid passage in the closed valve
  • Allows free passage in the fully open valve with minimal obstruction to the flow line
  • Throttles the flow passage in the modulating valve, as dictated by the pressure in the control chamber



  • Structural simplicity
  • Exquisite design featuring exceptionally low pressure losses at high flow rates
  • Can be used for regulating from no-flow to maximal flow with no need for additional throttling devices or by-pass valves
  • For natural liquids, sea water and industrial effluents
  • A wide selection of materials, coating and diaphragm types
  • All valve models fit a wide variety of control applications using Dorot pilot valve

Main Control Functions & Applications

  • M - Manually Controlled Valve
  • EL - Solenoid Controlled Valve
  • RC -  Hydraulic Remote Controlled Valve
  • PR - Pressure Reducing Valve
  • PS - Pressure Sustaining & Relief Valve
  • DI - Pressure Differential Sustaining Valve
  • FR - Flow Control Valve
  • FE -  Excessive Flow Shut-off Valve
  • FL - Modulating Float Controlled Valve
  • FLEL - Electric Float Controlled Valve
  • FLDI - Differential Float Controlled Valve
  • AL - Altitude Pilot Controlled Valve
  • BC - Booster Pump Control Valve
  • DW - Deep Well (Borehole) Pump Control Valve
  • RE - Surge Anticipating Valve
  • QR - Quick Pressure-relief Valve
  • TO - Two Stage Opening Addition
  • SP - Surge Preventing Stepped-Closure Addition
  • EC - PLC Controlled Valve
  • DE - Deluge Dry-pipe and Pre-action Valves