Diaphragm valve WW-750-66-B

hydraulically-operatedfloatadjustment

Overview
Hydraulically operated control valve for reservoir filling and level control. The valve is actuated by a hydraulically controlled, non‑modulating bi‑level vertical float: it opens at a preset low level and closes drip‑tight at a preset high level.

Key features & benefits

• Anti‑cavitation design to protect hydraulic components
• Wide flow range for varied operating conditions
• High stability and accurate level control
• Drip‑tight sealing to prevent leakage

Double-chamber design

• Moderated valve response for smooth operation
• Protected diaphragm for extended service life
• Optional configuration for very low‑pressure operation
• Moderated closing curve to reduce water hammer

Other features

• Modular design allowing easy addition of options
• Obstacle‑free flow path to minimize pressure losses
• Optional V‑Port throttling plug for stable low‑flow control
• Materials selected for potable water compatibility
• In‑line serviceable actuator for simplified maintenance
• Certified to common functional and drinking water standards: EN‑1074, NSF‑ANSI 61‑372, WRAS, AS 5081 and others

Typical applications

• Reservoir level control and filling systems
• Bi‑level control for quiet water renewal
• Potable water networks, fire protection systems and grey water systems

Technical specifications

• Model: 750‑66
• Denomination: Level Control Valve with bi‑level vertical float
• Series: 700 Sigma Series
• Operation: Hydraulically operated, non‑modulating bi‑level vertical float control
• Design: Double‑chamber actuator
• Options: V‑Port throttling plug for improved low‑flow stability; configurations for very low‑pressure operation
• Serviceability: In‑line serviceable actuator for easy maintenance
• Materials: Manufacturer standard materials suitable for potable water
• Performance: Anti‑cavitation features, wide flow range, high stability and accuracy, drip‑tight sealing
• Certifications: EN‑1074, NSF‑ANSI 61‑372, WRAS, AS 5081 (and others)
• Typical uses: Reservoir filling, potable water systems, fire protection, grey water systems