Pressure Sustaining Control Valve with Manual Selector 1 1⁄2” – 4″...

G500-PS model pressure sustaining hydraulic control valve maintains valve upstream pressure value constant Valve is opened when line pressure reaches the preset pressure level It ensures that pump motor within pumping systems will start without load It also prevents positive pressure waves caused by pump during start-up The valve controls upstream pressure value continuously and keeps it at a constant value without being affected from changes in flow rate When no flow exists, it closes tightly by itself. Applications Use G500-PS for maintaining a constant upstream pressure or to avoid unwanted high pressur Standards G500-PS : 3 Way plastic pressure sustaining pilot, polytethylene plastic tubing system and nylon fittings G500-PSM : 3 Way plastic pressure sustaining pilot, polytethylene plastic tubing system, nylon fittings and 3 Way selector Standard pressure adjustment from factory : 2 5 bar Size 1 1⁄2, 2″,  2 1⁄2”, 3″, 4″ Function 2 Way Normally Closed Valve Operation Hydraulic Body Material Plastic Seal Pressure Range 0.5 – 5 bar or 1 – 10 bar Media  Air, water