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Series 100 Basic Hydraulic Valves


Dorot Series 100 valves are automatic, hydraulically actuated, direct diaphragm sealing weir / globe type valves with proven and reliable design. The valves are designed for use in fire protection applications including deluge, pre-action, pressure control, water, foam and seawater fire protection systems. The valves consist of three major components: body, cover and diaphragm. The only moving part is the diaphragm.



  • UL-listed with a wide range of control trims
  • Fast opening and soft closing operation
  • Drip-tight hermetic shut off to ANSI FCI 70-2
  • Simple and reliable design
  • Easy installation and maintenance
  • High-grade construction materials
  • Reliable pressure control from near zero flow
  • Exceptionally low pressure losses


Optional Features

  • Manual or remote-reset
  • Manual, Electric, Hydraulic, Pneumatic or combinations thereof UL-listed control trims
  • Explosion-proof, SIL redundant solenoids & trim accesories
  • Sea water service, brackish water, foam and others


Series 100 Engineering Data


Fire Protection Catalog