Diaphragm valve BC-720-P

hydraulichydraulically-operatedpressure-reducing

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

Key features & benefits

• Excellent anti-cavitation characteristics
• Wide flow range
• High stability across operating range
• Drip-tight sealing
• Flexible design for easy addition of options
• Obstacle-free flow passage
• V-Port throttling plug (optional) for stable low-flow control
• High-quality materials suitable for potable and industrial water
• In-line serviceable for simplified maintenance
• Certified to functional and drinking water standards: EN-1074, NSF/ANSI 61-372, WRAS, AS 5081

Double chamber design

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

Typical applications

• First stage in two-stage pressure reducing systems
• Municipal and national networks — pressure reduction in downhill pipelines
• High-rise and mid-rise buildings — two-stage pressure reduction at zone inlet (model 720-PD2)
• Pumping stations — minimize cavitation and noise in circulation valves
• Reservoir and level control systems — reduce cavitation and noise in modulating control

Technical specifications

• Model family: 700 Sigma Series (models: 720-PD, 720-PD2)
• Operation: Hydraulically operated, diaphragm-actuated control valve
• Function: Proportional pressure reduction (fixed ratio by size and plug type)
• Design: Double-chamber option for moderated reaction and diaphragm protection
• Optional features: V-Port throttling plug for stability at low flow
• Maintenance: In-line serviceable
• Materials: Compatible with potable water and industrial use
• Certifications: EN-1074, NSF/ANSI 61-372, WRAS, AS 5081 and other regional approvals