Diaphragm valve 720-PD

hydraulically-operatedpressure-reducingpump

Overview
Hydraulically operated, diaphragm-actuated proportional pressure reducing valve that lowers higher upstream pressure to a controlled downstream pressure at a fixed reduction ratio determined by valve size and plug type.

Features & Benefits

• Excellent anti-cavitation characteristics
• Wide flow range with high stability
• Drip-tight sealing for reliable shut-off
• In-line serviceable for simplified maintenance

Double chamber design

• Moderated valve reaction for stable control
• Protected diaphragm to extend service life
• Optional operation at very low inlet pressures
• Moderated closing curve to reduce water hammer

Additional design highlights

• Obstacle-free flow path to minimize clogging
• Optional V-Port throttling plug for enhanced low-flow stability
• Flexible configuration for accessory integration
• Certified to drinking-water and functional standards: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081

Typical Applications

• First stage in two-stage pressure-reduction systems
• Municipal and national water networks — pressure reduction on downhill pipelines
• High- and mid-rise buildings — two-stage reduction at pressure zone inlets (720-PD2)
• Pumping stations and reservoirs — minimize cavitation and noise in circulation and level-control valves
• Irrigation and remote systems

Technical specifications

• Series: 700 Sigma Series
• Models: 720-PD (720-PD2 for two-stage/high-rise applications)
• Actuation: Hydraulically operated, diaphragm-actuated
• Design: Double-chamber
• Options: V-Port throttling plug, anti-cavitation trims
• Flow pass: Obstacle-free
• Service: In-line serviceable
• Standards: EN-1074, NSF-ANSI 61-372, WRAS, AS 5081
• Typical segments: Municipal water, irrigation, buildings, pumping stations