Piston valve WW-840

electrichydraulically-operatedfor control

Overview
Hydraulically operated, piston-actuated pump control valve with active check that opens fully or shuts off on electric signal. The valve isolates the pump from the pipeline during pump start-up and shutdown to prevent surge events. Designed for high-pressure waterworks service with line-pressure-driven independent operation. Includes opening/closing speed controls and limit switch.

Features & Benefits

• Robust piston-actuated design – suitable for high-pressure service
• Line-pressure driven – independent operation from external power for basic functions
• Elegant simplicity
  • Cost-effective configuration
  • Simple to maintain
  • Minimal external accessories
• In-line serviceable – enables quick maintenance without system dismantling
• Double-chamber actuator
  • Moderated valve reaction
  • Controlled closing curve to reduce transients
• Flexible design – easy addition of options and accessories
• Semi-straight flow path – minimizes turbulence
• Stainless-steel raised seat – resistant to cavitation damage
• Obstacle-free full bore – ensures reliable flow and access
• Optional V-Port throttling plug – stable control at low flow rates

Typical Applications

• Pumping stations – controls pump start-up and shut-down and protects pipelines from surge

Technical specifications

• Model: 840-03-S
• Brand: BERMAD
• Series: 800 Series
• Actuation: Hydraulically operated, piston-actuated
• Design: Double-chamber actuator
• Controls: Opening and closing speed controls; Limit switch
• Flow path: Semi-straight flow, obstacle-free full bore
• Seat: Stainless-steel raised seat (cavitation resistant)
• Serviceability: In-line serviceable
• Operation: Line-pressure driven (independent operation)
• Optional: V-Port throttling plug for stable low-flow control
• Segment: Waterworks
• Internal code/barcode: 30596