Danfoss

Description:  PTS1-10-0-80
Function: Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent
Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent 
210 bar [3000 psi]• 30 I/min [8 US gpm] 
This is a 3-way, spool type, hydraulically piloted directional control valve with an atmospheric vent. In the normal condition, port 2 is connected to port 3 and port 4 is blocked. Pilot pressure at port 1 will cause the valve to shift, connecting port 3 to port 4 with port 2 blocked. During the cross-over transition, all ports are blocked. This valve can be used as a selector valve when combined with a pilot solenoid valve. 

Relief valve, Direct Acting, Poppet Type
250 bar [3600 psi] • 30 l/min [8 US gpm]
DESCRIPTION AND OPERATION
This is a direct acting, poppet type relief valve that relieves from port 1 to 2. It can be used as a cost-effective main relief or to protect an actuator from over-pressurization

Description: RV5-10-K-0-50/
Function: Pilot operated pressure relief valve spool type with handknob with locknut
Relief valve, Pilot operated, Spool Type 350 bar [5000 psi] • 114 l/min [30 US gpm]
This is a pilot operated, spool type relief valve that relieves from port 1 to port 2. It can be used to limit pressure in a system while maintaining accurate pressure control with constant or varying flows.

Description: PRV1-10-S-0-2/
Pressure Reducing Valve, Relieving, Direct Acting 210 bar [3000 psi]• 15 I/min [4 US gpm]
This is a normally open, direct acting pressure reducing valve. Port 2 
is open to port 1 until the setting is reached. at which time the valve throttles the outlet flow limiting the pressure at port 1. If the outlet pressure rises due to an external force, then the valve will open port 1 to port 3 acting as a relief valve. This valve is ideal for use in brake circuits where low leakage is important. 

Description: PRV1-10-S-0-24/
Pressure Reducing Valve, Relieving, Direct Acting 210 bar [3000 psi]• 15 I/min [4 US gpm]
This is a normally open, direct acting pressure reducing valve. Port 2 
is open to port 1 until the setting is reached. at which time the valve throttles the outlet flow limiting the pressure at port 1. If the outlet pressure rises due to an external force, then the valve will open port 1 to port 3 acting as a relief valve. This valve is ideal for use in brake circuits where low leakage is important. 

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: DPS2-10-P-F-0-160
Logic Element, Normally Closed, Spool Type, Pilot to Close 290 bar [4200 psi]• 60 I/min [16 US gpm] 
This is a 3-ported, normally closed, pilot to close spool type logic element. By opening port 3 to tank, flow can pass from port 1 to port 2. Flow is blocked from port 1 to port 2 unless the pressure is high enough in port 1 to overcome the spring set pressure. Applying pressure to port 3 will increase the pressure required in port 1 to open the valve by a factor of 1 to 1. This valve is ideal for use as a pressure compensator, bypass valve, or a pilot to close valve in regenerative circuits. 

Description: PTS3-10-0-80
Function: Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Internal Drain
Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Internal Drain 210 bar [3000 psi]• 30 I/min [8 US gpm] 
This is a 3-way, spool type, hydraulically piloted directional control valve with an internal drain. In the normal condition, port 3 is connected to port 4 with port 2 blocked. Pilot pressure at port 1 will cause the valve to shift, connecting port 3 to port 2 with port 4 blocked. During the cross-over transition all ports are blocked. Due to the internal hydraulic vent, the pilot pressure required shift the valve is dependent on the pressure in port 4, which would normally be connected to tank. 

Description:  PTS1-10-0-160
Function: Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent
Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent 
210 bar [3000 psi]• 30 I/min [8 US gpm] 
This is a 3-way, spool type, hydraulically piloted directional control valve with an atmospheric vent. In the normal condition, port 2 is connected to port 3 and port 4 is blocked. Pilot pressure at port 1 will cause the valve to shift, connecting port 3 to port 4 with port 2 blocked. During the cross-over transition, all ports are blocked. This valve can be used as a selector valve when combined with a pilot solenoid valve. 

Description:  PTS1-10-0-40
Function: Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent
Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Atmospheric Vent 
210 bar [3000 psi]• 30 I/min [8 US gpm] 
This is a 3-way, spool type, hydraulically piloted directional control valve with an atmospheric vent. In the normal condition, port 2 is connected to port 3 and port 4 is blocked. Pilot pressure at port 1 will cause the valve to shift, connecting port 3 to port 4 with port 2 blocked. During the cross-over transition, all ports are blocked. This valve can be used as a selector valve when combined with a pilot solenoid valve. 

Logic Element, Normally Closed, Poppet Type, Vent to Open
350 bar [5000 psi] • 60 l/min [16 US gpm]
DESCRIPTION AND OPERATION
This is a 3-ported, vent to open, poppet type logic element with port 1 connected to port 3 through an orifice. By opening port 3 to tank, flow can pass from port 1 to port 2 or from port 2 to port 1. Closing port 3 will prevent the valve from opening from port 1 to port 2, but flow can still take place from port 2 to port 1. The area ratio between port 1 and 3 is 1:2 and the ratio between port 1 and 2 is also 1:2. By controlling the flow or pressure out of port 3, the valve can be used as an on/off valve or in a pressure control function. 

Description: PTS3-10-0-40
Function: Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Internal Drain
Directional Control Valve, 3-Way, Spool Type, Hydraulic Pilot, Internal Drain 210 bar [3000 psi]• 30 I/min [8 US gpm] 
This is a 3-way, spool type, hydraulically piloted directional control valve with an internal drain. In the normal condition, port 3 is connected to port 4 with port 2 blocked. Pilot pressure at port 1 will cause the valve to shift, connecting port 3 to port 2 with port 4 blocked. During the cross-over transition all ports are blocked. Due to the internal hydraulic vent, the pilot pressure required shift the valve is dependent on the pressure in port 4, which would normally be connected to tank.