SL30GA1-4X/ SL30PA1-4X/V SL30PB1-4X Hydraulic Control Check Valve Hydraulic

Category editing Classification by control method: manual, electronic, hydraulic Classification by function: flow valve (throttle valve, speed regulating valve, shunt and collector valve), pressure valve (overflow valve, pressure reducing valve, sequence valve, unloading valve), directional valve (electromagnetic directional valve, manual directional valve, one-way valve, hydraulic control one-way valve) Classified by installation method: plate valve, tubular valve, superposition valve, threaded cartridge valve, cover plate valve

product-800-139

Product Description
The valve mainly consists of a housing (1), a poppet valve (2), a compression spring (3), a control valve core (4), and an optional pre opening ball seat valve (5).
The seat valve allows fluid to flow from A to B without requiring external pilot pressure. In the opposite direction, the seat valve is hydraulically closed.
Condition: pA>pB+opening pressure (compression spring).
The high pilot pressure at port X is sufficient to move the control valve core (4) in the direction of the ball seat valve (5) (model "A") and push the poppet valve (2) away from its seat. This allows for free flow in both directions (actively holding open).
To ensure the active opening of the poppet valve, the pressure ratio on both sides of the control spool (4) is as important as the area ratio on the control spool (4) or lift poppet valve (2).
Therefore, models with and without pre opening "A" and "B" are provided for SV type (large annular area). A3 (8); With pA connected).