 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.
- Eliminates surge for all pumping systems:
- Booster & deep well, single & variable speed
- Eliminates surge for all distribution networks:
- Municipal, hi-rise buildings, sewage, HVAC, irrigation
- Difficult to maintain, remote locations, older systems
Features and 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
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