Pressure Relief/Sustaining Valve
730
700 Sigma Series
Waterworks
Buildings & Construction
Pressure relief/sustaining hydraulically operated control valve that can fulfill either of two separate functions: When installed in-line, it sustains minimum pre-set, upstream (back) pressure regardless of fluctuating flow or varying downstream pressure. When installed as a “branched from the line” circulation valve it relieves excessive line pressure when above maximum pre-set.
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Designed to - Stand up to the toughest conditions
- Excellent anti-cavitation properties
- Wide flow range
- High stability and accuracy
- Drip tight sealing
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Double chamber design
- Moderated valve reaction
- Protected diaphragm
- Optional operation in very low pressure
- Moderated closing curve
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Flexible design - Easy addition of features
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Obstacle free flow pass
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V-Port throttling plug (optional) - Very stable at low flow
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High quality materials
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In-line serviceable - Easy maintenance
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Certified to functional and drinking water standards: EN-1074, NSF/ANSI 61/372, WRAS, AS 5081 and others
Typical Applications
- Water delivery system - Prioritizing upstream over downstream demand
- Water delivery system ‑ Prioritizing upstream demand to maintain pressure
- Pumping stations - Ensure operating point on pump curve
- Pumping stations - Circulation during low demand
- Filtration system ‑ Sustaining minimum pressure for efficient backflush
How 730
is used in
Safe, continuous drinking water with smart pressure solutions.
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Optimizing pump operation, surge and cavitation protection, air control, and metering for efficient, safe, and reliable water supply.
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Smart infield control enables precise irrigation scheduling and water flow.
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Smart & accurate control solutions for efficient filtration process in irrigation systems.
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Protected, low-maintenance flow control for water distribution.
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Smart pressure & flow control for efficient, reliable water networks.
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Protecting water system components & pipelines from pressure surges during power failure with advanced & cost efficient surge protection solutions.
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Pressure Relief/Sustaining Valve
730
