Direct-operated solenoid valve DS series

2-waynormally opennormally closed

Parker's 2-way poppet solenoid valves check flow in one direction with very low leakage and free flow opposite; normally-open or normally-closed configurations available. Capable of pressures up to 350 bar (5000 psi) and flows up to 260 lpm (70 gpm). Parker’s 2-way poppet style solenoid valves feature a proven design that ensures very low leakage when flow is blocked in one direction and minimized pressure drop in the free flow position. These valves can operate with hydraulic system flows as high as 260 lpm and pressures up to 350 bar with normally-open or normally closed configurations available. Parker’s 2-way poppet solenoid valves are ideal for unloading and load holding applications that require low poppet style leakage within mobile, industrial, or manufacturing markets. If the nose of the cartridge (port 1) is pressurized enough to overcome the spring force, and pushing the poppet off of its seat, flow will be allowed through port 1 to port 2. When the coil is energized, the pilot poppet is lifted off of its seat, venting the pressure inside the poppet to port 1. This creates a pressure imbalance across the main poppet, therefore lifting the poppet and allowing flow from the side to the nose (2 to 1). Because these valves are pilot operated, a minimal amount of pressure differential is necessary (25-50 psi), along with flow between ports 2 and 1 must be present to overcome the spring and lift the poppet. The normally open valve pilot is held off its seat by spring force. Pilot flow is vented to port 1, creating a pressure imbalance that moves the main poppet. This differential lifts the poppet allowing flow from the side to nose (2 to 1).