2 - way

Description: PSV10-10-S-0-24
Function: Sequence Valve, Normally Closed, Spool Type, Hydraulic Pilot, External Drain
Sequence Valve, Normally Closed, Spool Type, Hydraulic Pilot, External Drain 210 bar [3000 psi]• 23I/min [6 US gpm] 
This is a hydraulically pilot operated spool valve, normally closed from port 2 to 3 with port 4 as a drain port connected to tank. When the pilot pressure on port 1 reaches the setting, the valve will begin to open port 2 to 3. This is ideal for sensing pressure in a remote area of a circuit to sequence another operation

Description: VDP 06/NC-EN-1-00-XXX
Sequence Valve, Normally Closed, Spool Type, Hydraulic Pilot, Atmospheric Vent 315 bar [4600 psi]• 25 I/min [7 US gpm] 
This is a hydraulically pilot operated spool valve, normally closed from port 2 to 3 with an atmospheric vent. When the pilot pressure on port 1 reaches the setting, the valve will begin to open port 2 to 3. This is deal for sensing pressure in a remote area of a circuit to sequence another operation. 

The accumulator sense, pump unload pilot valve is used to sense pressure in an accumulator at port 1 of the valve and when the pressure at port 1 reaches the valve setting, port 2 connects to port 3 to vent a relief valve and unload the pump. This valve has a 20% ratio between unload setting and reset; when pressure at port 1 falls below 80% of the valve setting, port 2 is blocked from port 3 and the pump will come back online to recharge the accumulator. This valve requires a separate check valve between port 1 and the pump. Another version of the accumulator sense, pump unload valve, QCDB, includes a free-flow check valve for pump flows under 12 gpm (50 L/min)

Solenoid Valve, 2-way, Spool Type, Normally Open
230 bar [3300 psi] • 16 l/min [4.2 US gpm]
OPERATION AND DESCRIPTION
This is a 2-way, 2-position, spool type, direct acting, normally open solenoid valve. When de-energized, flow can take place from port 2 to 1 and from 1 to 2. In its energized condition, flow is blocked in both directions. The valve will be subject to normal spool leakage dependent on the pressure dfference between the ports. They come standard with a push pin manual override. These valves can be used to interrupt a pressure line where flow is expected to pass in both directions in the energized condition.