Description
WW736 – Differential Pressure Sustaining Valve AS5081 / WaterMark
The Model 736 Differential Pressure Sustaining Valve is a hydraulically operated, diaphragm actuated control valve that sustains minimum pre-set, differential pressure between two points, regardless of fluctuating flow or varying upstream pressure.
- Pump overload & cavitation protection
- Balancing between circuits in HVAC systems
- Safeguarding pump minimum flow
- Emergency filter by-pass
- Line pressure driven – Independent operation
- Balanced seal disk – High relief flow capacity
- In-line serviceable – Easy maintenance
- Double chamber design
- Moderated valve reaction
- protected diaphragm
- Flexible design – Easy addition of features
- Variety of accessories – Perfect mission matching
- “Y” or angle, wide body – Minimized pressure loss
- Semi-straight flow – Non-turbulent flow
- Stainless steel raised seat – Cavitation damage resistant
- Obstacle free, full bore – Uncompromising reliability
- V-Port Throttling Plug – Low flow stability
Major Additional Features
- Solenoid control – 736 – 55
- Check features – 736 – 20
- High sensitivity pilot – 736 – 12
- Solenoid control & check feature – 736 – 25
- Electric override – 736 -59
- Electronic differential pressure sustaining valve – 738 – 03 – 06
Operation
The Model 736 is a pilot controlled valve equipped with an adjustable, 2 -Way, pressure sustaining pilot and a solenoid pilot. The needle valve continuously allows flow from the main valve inlet into the upper control chamber.
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