Sequence Valves

Pressure Reducing/Relieving Valves

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Typical Schematic

Typical application for the PSO or PSC sequence valve is for a high/low application like a log splitter where the spring chamber can be vented externally (spring chamber pressure directly adds to the pilot pressure required to shift the valve). Typical application for the PWI sequence valve is for controlling the lip on a dock leveller. Typical application for the PWE sequence valve is for a high/low pump in a positive traction circuit where the valve automatically shifts to low speed high torque mode. Typical application for the PSI sequence valve is when starting against load where the spring chamber can be vented externally (spring chamber pressure directly adds to the pilot pressure required to shift the valve). Typical application for the PSA is a hydraulic brake release of a spring loaded single acting cylinder. Typical application for the PSS hot oil shuttle is to divert fluid from the low pressure side of a closed loop hydrostatic transmission for cooling or filtering.

  Code LPM BAR Size Datasheet .STP .DXF
Sequence Valve, 4 Way Normally Closed, External Pilot D-DGPSA 38 210 10
4 Way N.C.
Ext. Pilot
   
Sequence Valve, 2 Way Normally Closed, External Pilot D-DGPSC 38 210 10
2 Way N.C.
Ext. Pilot
   
Sequence Valve, 3 Way Normally Open, Internal Pilot D-DGPSI 38 210 10
3 Way N.O.
Int. Pilot
   
Sequence Valve, 2 Way Normally Open, External Pilot D-DGPSO 38 210 10
2 Way N.O.
Ext. Pilot
   
Hot Oil Shuttle Valve D-DGPSS 45 210 10
Hot Oil Shuttle    
Sequence Valve, Normally Open, External Pilot D-DGPTC 38 210 10
N.O.
Ext. Pilot
   
Sequence Valve, Normally Closed, External Pilot D-DGPTO 38 210 10
N.C.
Ext. Pilot
   
Sequence Valve, Normally Closed, External Pilot D-DFPWE 38 210 10
N.C.
Ext. Pilot
   
Sequence Valve, Internal Pilot and Drain D-DFPWI 30 210 10
Int. Pilot
Drain
   
Sequence Valve, Normally Closed, Internal Pilot D-SLPWA 150 240 16
N.C.
Int. Pilot
   
Sequence Valve, Normally Closed, Internal Pilot with Reverse Free Flow D-SLPWB 150 240 16
Int. Pilot
Rev. Free Flow
   

 

Warning: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability.

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