Description
Pilot-Operated Backpressure Sustaining Valves
Uses Golden-AndersonÒ differential piston main valve.
Super-sensitive pilot for accurate pressure control.
Globe or angle body with ANSI, BS, DIN or ISO flanges.
Manufactured in sizes 2½ to 42 inches (65 to 1,000 mm) for flows to 80,000 GPM (18,000 M3/hr).
Available in many variations to accommodate virtually any pressure control scheme.
Function and Applications
Sustains upstream (inlet) pressure to pre-set minimum regardless of variations in demand, closing tight if upstream pressure drops below minimum. Municipal and industrial uses include sustaining minimum pressure in a zone under periods of high demand, maintaining a minimum pressure against a pump or process (e.g., a pressure filter) and as a pressure relief valve
