Diaphragm valve WW-772-U

hydraulically-operatedfor controlregulating

Subtitle
with opening and closing speed controls

Short description
Hydraulically operated flow control valve that maintains a pre-set maximum flow regardless of fluctuating demand or varying system pressure.

Features & Benefits

• Excellent anti-cavitation properties
• Wide flow range
• High stability and accuracy
• Drip-tight sealing

Double chamber design

• Moderated valve reaction
• Protected diaphragm
• Optional operation at very low pressure
• Moderated closing curve

Additional design highlights

• Flexible modular design — easy addition of features
• Obstacle-free flow passage to minimise deposits and losses
• V-Port throttling plug (optional) — very stable at low flow
• High-quality materials
• In-line serviceable for easy maintenance
• Certified to functional and drinking-water standards: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 and others

Typical Applications

• Water delivery systems — balancing supply capacity with demand
• HVAC systems — flow limiting to maintain efficiency and ensure optimal performance
• Filtration systems — process flow control in filtration applications

How it is used (example)
Optimize HVAC efficiency with precise flow control to achieve balanced cooling.

Technical characteristics / specifications

• Model: 770-03-U
• Series: 700 Sigma Series
• Product type: Flow control valve (hydraulically operated)
• Design: Double chamber; obstacle-free flow passage
• Optional features: V‑Port throttling plug for very stable low-flow operation
• Serviceability: In-line serviceable for easy maintenance
• Applicable segments: Waterworks; Irrigation; Buildings & Construction
• Certifications: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 (and others)
• Internal product identifier (page): 30262