Diaphragm valve WW-750-86

hydraulically-operatedfloatpilot

Overview
Hydraulically operated control valve that controls reservoir filling and reservoir level. The valve shuts off at a pre-set reservoir high level and fully opens in response to an approximately one meter (3 ft) level drop, as sensed by the 3‑Way altitude pilot mounted on the main valve.

Key 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 in very low pressure
• Moderated closing curve

Additional Features

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

Typical Applications

• Municipal systems - level control for water towers and elevated reservoirs
• Bi-Level control for water refreshment and silent operation
• Potable water and fire protection
• Irrigation infrastructure - ESR (Elevated Storage Reservoirs)

How it works
The valve is driven hydraulically and uses a 3‑Way altitude pilot to sense reservoir level. When the reservoir reaches a pre-set high level the valve shuts off; when level drops approximately one meter (3 ft) the altitude pilot triggers full opening to refill the reservoir.

Certifications & Compliance
Certified to EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 and additional drinking-water and functional standards.

Characteristics / Technical specifications

• Model: 750-80
• Series: 700 Sigma Series
• Product type: Level Control Valve with Altitude Pilot
• Operation: Hydraulically operated control valve
• Sensing: 3‑Way altitude pilot mounted on the main valve
• Function: Automatic reservoir filling; shuts off at preset high level and opens on ~1 m (3 ft) level drop
• Design: Double chamber actuator for moderated reaction and protected diaphragm
• Optional: V‑Port throttling plug for stable low-flow control
• Serviceability: In-line serviceable actuator for easy maintenance
• Flow path: Obstacle-free flow pass
• Anti-cavitation: Designed with anti-cavitation properties
• Sealing: Drip-tight sealing
• Materials: High quality materials suitable for potable water and industrial waterworks
• Approvals: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081 (and others)
• Typical applications: Municipal networks, reservoirs, irrigation ESRs, potable water and fire protection systems
• Page product barcode (internal): 192397
• Segments: Waterworks, Irrigation