Bermad WW-730 Large Metal Hydraulic Pressure Relief/Sustaining Valve (AS5081/WaterMark)

The Model 730 Pressure Relief/Sustaining Valve is a hydraulically operated, diaphragm actuated control valve that can fulfill either of two separate functions.

When installed in-line, it sustains minimum pre-set, upstream (back) pressure regardless of fluctuating flow or varying downstream pressure. When installed as a circulation valve, it relieves excessive line pressure when above maximum pre-set.

• Prioritizing pressure zones
• Ensuring controlled pipeline fill-up
• Preventing pipeline emptying
• Pump overload and cavitation protection
• Safeguarding pump minimum flow
• Excessive line pressure protection

FEATURES

• Line pressure driven - independant operation
• Balanced seal disk - high relief flow capacity
• In-line serviceable - easy maintenance
• Double chamber design
  • Moderated valve reaction
  • Protected diaphragm
• Flexible design - Easy addition of features
• Variety of accessories - Perfect mission matching
• "Y" or angle, wide body - Minimised pressure loss
• Semi-straight flow - Non-turbulent flow
• Stainless steel raised seat - Cavitation damage resistant 
• Obstacle free, full bore - Uncompromising reliability
• V-Port throttling plug - Low flow stability