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Model 792-U

Burst Control & Pressure Reducing Valve

The Model 792-U Burst Control & Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve with two independent functions. When flow is below setting, it reduces higher upstream pressure to lower pre-set downstream pressure, regardless of varying demand or upstream pressure. Upon sensing flow in excess of setting, it shuts off drip tight and locks (until it is manually reset).
 

Features and Benefits

  • Line pressure driven – Independent operation
  • Hydraulic flow sensor (upstream installation)
    • No moving parts
    • No electronic components
    • No need for flow straighten
  • Sensitive hydraulic pilot – Tight setting window
  • In line serviceable – Easy maintenance
  • Double chamber design
    • Moderated valve reaction
    • Protected diaphragm
  • “Y” or angle, wide body – Minimized pressure loss
  • Obstacle free, full bore – Uncompromising reliability
  • Stainless Steel raised seat – Cavitation damage resistant
  • Semi-straight flow – Non-turbulent flow
  • V-Port Throttling Plug – Low flow stability
     

Typical Applications

Burst Control Valves in a Network
Every water system is vulnerable to bursts, whether due to system problems or external mechanical damage. This illustration shows a reservoir feeding a downhill line with lower elevation consumers. Each Model 792-U protects the lower elevation consumers. It reduces their supply pressure and, in case of burst, “closes & locks,” preventing flooding. The Model 790-M, installed at the reservoir outlet, also protects against reservoir emptying.