• Pump overload and cavitation protection
  • Balancing between circuits in HVAC systems
  • Safeguarding pump minimum flow
  • Emergency filter by-pass


The Model 736 Differential Pressure Sustaining Valve is a hydraulically operated, diaphragm actuated control valve that sustains minimum pre-set, differential pressure between two points, regardless of fluctuating flow or varying upstream pressure.

Make enquiry How to order


View all product approvals

Related Product Types