Diaphragm valve WW-753-65

hydraulically-operatedfloatlevel control

Product Overview
Hydraulically operated level control and pressure sustaining control valve that controls reservoir filling and reservoir level. During filling the valve sustains minimum upstream pressure regardless of fluctuating flow or reservoir level. Reservoir filling is in response to a Bi-Level electric float switch signal opening at a pre-set low level and shutting off at a pre-set high level.

Key Features & Benefits

• Excellent anti-cavitation properties
• Wide flow range
• High stability and accuracy
• Drip-tight sealing
• Flexible design enabling easy addition of features
• Obstacle-free flow passage
• V-Port throttling plug (optional) — very stable at low flow
• High quality materials for durability
• In-line serviceable for easy maintenance
• Certified to functional and drinking water standards (EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 and others)

Double Chamber Design

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

Typical Applications

• Level control for water reservoirs
• Bi-level control for water refreshment
• Water delivery systems — prioritizing upstream over downstream demand
• Serves as a safety valve in tank filling systems
• Potable water, fire protection and grey water systems

Characteristics / Technical Specifications

• Model: 753-65
• Series: 700 Sigma Series
• Operation: Hydraulically operated level control & pressure sustaining valve
• Control input: Bi-Level electric float switch (opens at preset low level, closes at preset high level)
• Actuator design: Double-chamber actuator
• Flow path: Obstacle-free flow pass; optional V-Port throttling plug for stable low-flow control
• Anti-cavitation: Built-in anti-cavitation features for high durability
• Serviceability: In-line serviceable for ease of maintenance
• Certifications: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 (and additional regional approvals)
• Typical segments: Waterworks; Buildings & Construction
• Operation note: Sustains minimum upstream pressure during filling regardless of fluctuating flow or reservoir level
• Additional: High stability and accuracy, drip-tight sealing, moderated closing behavior
• Internal code (page): 192057