Conical plug valve 770-03-U

electrically-actuatedpilot-operatedflow control

Overview
Hydraulically operated flow control valve that maintains a pre-set maximum flow regardless of fluctuating demand or varying system pressure. Includes opening and closing speed controls; V-Port throttling plug and upstream orifice plate available as options.

Product Identification

• Model: 770-03-U
• Series: 700 Sigma Series
• Segments: Waterworks, Irrigation, Buildings & Construction, Industrial water systems
• Internal code / barcode: 30262

Features & Benefits

• Anti-cavitation design and wide flow range
  • Excellent cavitation resistance
  • Very stable and accurate flow control across range
  • Drip-tight sealing
• Double-chamber hydraulic pilot design
  • Moderated valve reaction
  • Protected diaphragm
  • Optional operation at very low inlet pressure
  • Moderated closing curve for system stability
• Flexible modular design for easy addition of functions
• Obstacle-free flow passage for minimal pressure loss
• Optional V-Port throttling plug for stable control at low flow
• In-line serviceable — facilitates maintenance without full removal
• Certified to functional and drinking water standards

Typical Applications

• Water distribution and delivery systems — balancing supply capacity with demand
• HVAC and building services — flow limiting to maintain efficiency and system stability
• Filtration and process systems — controlled process flows in filtration applications

Related Capabilities

• Available spare parts and spare-parts documentation for the 700 Sigma Series
• Ordering guide and engineering documentation available

Technical Specifications

• Model: 770-03-U
• Product type: Flow control valve (hydraulically operated, pilot-controlled)
• Series: 700 Sigma Series
• Operation: Hydraulically operated with opening and closing speed controls
• Options: V-Port throttling plug, upstream orifice plate
• Maintenance: In-line serviceable
• Internal code / barcode: 30262
• Certifications: EN-1074; NSF-ANSI 61-372; WRAS; AS 5081; other functional and drinking water standards
• Brand: BERMAD