Diaphragm valve WW-726

hydraulically-operatedflow-controlseat

Overview
Hydraulically operated differential pressure reducing valve that maintains a preset maximum flow through an external device (e.g., heat exchanger, chiller or filter) by limiting the differential pressure across that device. Model 726 is part of the 700 Sigma Series, engineered for applications requiring stable flow control and anti-cavitation performance.

Series & Segments

• Series: 700 Sigma Series
• Segments: Waterworks, Irrigation, Buildings & Construction, HVAC

Features & Benefits

• Double-chamber hydraulic actuator
  • Moderated valve reaction
  • Isolated/protected diaphragm
  • Optional operation at very low pressure
  • Moderated closing curve
• Anti-cavitation design
  • Reduces cavitation and noise
  • Wide flow range
  • High stability and accuracy
  • Drip-tight sealing
• Flexible configuration - V-Port throttling plug (optional); valve position indication, limit switch and position transmitter options
• Obstacle-free flow path for reduced pressure loss
• Inline serviceable - actuator removable as a single unit for simplified maintenance
• Materials & Certifications - Suitable for potable water; certified to EN-1074, NSF-ANSI 61/372, WRAS, AS 5081

Typical Applications

• Heat exchangers, chillers and filters — limit differential pressure while maintaining preset maximum flow
• HVAC systems — pressure balancing and flow restriction based on system differential pressure
• Water distribution, irrigation and building services

Technical Specifications

• Product type: Differential Pressure Reducing Valve
• Model: 726
• Series: 700 Sigma Series
• Design: Double-chamber hydraulic actuator with isolated diaphragm
• Optional features: V-Port throttling plug; low-pressure variants; valve position indication / limit switch / position transmitter
• Maintenance: Inline serviceable actuator for simplified maintenance
• Flow path: Obstacle-free flow pass for reduced pressure loss
• Performance: Anti-cavitation properties, wide flow range, high stability and accuracy, drip-tight sealing
• Materials: High-quality materials suitable for drinking water
• Standards & Certifications: EN-1074, NSF-ANSI 61/372, WRAS, AS 5081