Bermad WW750-80 Sigma EN ES Altitude Control Valve



Bermad WW750-80 Sigma EN ES Altitude Control Valve

The Bermad 750-80 is a hydraulically operated control valve that controls reservoir filling and reservoir level. The valve shuts off at a pre-set reservoir high level and fully opens in response to an approximately one meter (3 ft) level drop, as sensed by the 3-Way altitude pilot mounted on the main valve. BERMAD 700 SIGMA EN/ES series valves are hydraulic, oblique pattern, globe valves with a raised seat assembly and double chamber unitized actuator, that can be disassembled from the body as a separate integral unit. The valves hydrodynamic body is designed for unobstructed flow path and provides excellent and highly effective modulation capacity for high differential pressure applications. The valves are available in the standard configuration or with an Independent

Check Feature code “2S”. The 700 SIGMA EN/ES Valves operate under difficult operation conditions with minimal cavitation and noise. They meet size and dimensions requirements of various standards.


  • Designed to - stand up to the toughest conditions
    • Excellent anti-cavitation properties
    • Wide flow range
    • High stability and accuracy
    • Drip tight sealing
  • ֺ Double chamber design
    • Moderated valve reaction
    • Protected diaphragm
    • Optional operation in very low pressure
    • Moderated closing curve
  • ֺ Flexible design - Easy addition of features
  • ֺ Obstacle free flow pass
  • ֺ V-Port Throttling Plug (Optional) - Very stable at low flow ֺ Compatible with various standards
  • ֺ High quality materials
  • ֺ In-line serviceable - Easy maintenance


  • Modulating altitude control – 750-82
  • ֺ Pressure sustaining – 753-80-X
  • ֺ Flow control – 757-80-XU
  • ֺ Bi-directional flow – 750-87-X
  • ֺ Full powered opening & closing – 750-80-BX
  • ֺ Closing surge prevention – 750-80-49-X
  • ֺ Bi-level altitude control – 750-86
  • ֺ Level sustaining with high sensitivity pilot – 75A-83
  • ֺ Independent Check Feature – 750-80-25


Bermad WW750-80 Sigma EN ES Altitude Control Valve Bermad WW750-80 Sigma EN ES Altitude Control Valve Brochure