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  • The Model 735-M Surge Anticipating Valve is an off-line, hydraulically operated, diaphragm actuated valve. The valve, sensing line pressure, opens in response to the pressure drop associated with abrupt pump stoppage. The pre-opened valve dissipates the returning high pressure wave, eliminating the surge. The Model 735-M smoothly closes drip tight as quickly as the relief feature allows, while preventing closing surge. The valve also relieves excessive system pressure.

    Product Features & Benefits

     

    • Replaces surge air vessels
      • Relieves surge, fail-safe open
      • Minimal maintenance
      • Economy of space
      • Lower investment & maintenance costs
      • Especially economic for higher pressure ratings
    • Line pressure driven
      • Independent operation
      • No motor required
      • Long term drip tight sealing
      • Adjustable hydraulic actuation
    • Double chamber
      • Moderated valve closing (no surges)
      • Protected diaphragm
    • In-line serviceable – Easy maintenance
    • Obstacle free, full bore – Uncompromising reliability
    • Balanced seal disk – High flow capacity

     

    Typical Application

     

    In this system, a pump battery supplies the main line through a manifold. The Model 735-M:

    • Eliminates surge upon power failure
    • Provides surge free switching between “on-duty” pumps
    • Closes smoothly according to pilot setting

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