melmel4546
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how does a 5/3-way proportional directional control valve VPWP work ? and Information about the 5/3-way proportional directional control valve plss. 
5/3-way proportional directional control valve VPWP
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Welcome to PF.
It will depend on who makes it. 5/3 suggests 5 ports, with three states, with proportional flow decided by solenoid current. Maybe for use in an electrically controlled, hydraulically operated, servo system.
Do you understand how normal Directional Control spool Valves operate ?
https://en.wikipedia.org/wiki/Directional_control_valve
It would probably be a proportional cross-over spool valve with a solenoid at each end, spring loaded to rest in the centre = neutral position. Each solenoid would move the spool in a different direction. As solenoid current is increased the valve moves further and allows more fluid to flow through the valve. The 5 ports suggests it has the normal Pump and Tank ports, P&T, plus the DCV extend and retract ports, A&B. The fifth may be a signalling, brake or interlock line.
Can you please give a link to the particular hydraulic valve you are referring to, and explain your intended application.
It will depend on who makes it. 5/3 suggests 5 ports, with three states, with proportional flow decided by solenoid current. Maybe for use in an electrically controlled, hydraulically operated, servo system.
Do you understand how normal Directional Control spool Valves operate ?
https://en.wikipedia.org/wiki/Directional_control_valve
It would probably be a proportional cross-over spool valve with a solenoid at each end, spring loaded to rest in the centre = neutral position. Each solenoid would move the spool in a different direction. As solenoid current is increased the valve moves further and allows more fluid to flow through the valve. The 5 ports suggests it has the normal Pump and Tank ports, P&T, plus the DCV extend and retract ports, A&B. The fifth may be a signalling, brake or interlock line.
Can you please give a link to the particular hydraulic valve you are referring to, and explain your intended application.
melmel4546
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Do you understand the diagrams ?
melmel4546
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not so much , I'm looking for something article-style
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When in neutral middle position all paths are blocked.
The ports 1, 2, 3, 4, & 5 are connected differently in the two end positions.
Imagine sliding the middle of the diagram sideways.
These are the three connection states.
The ports 1, 2, 3, 4, & 5 are connected differently in the two end positions.
Imagine sliding the middle of the diagram sideways.
These are the three connection states.
2025 Award
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2025 Award
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The device you show in post #3 is not a simple DCV. It is an integrated pneumatic product manufactured by Festo. It includes control solenoids, LED indicators and pressure sensors. The full data sheet is here;
https://www.festo.com/cat/en-us_us/data/doc_ENUS/PDF/US/VPWP_ENUS.PDF
You must ask more specific questions.
https://www.festo.com/cat/en-us_us/data/doc_ENUS/PDF/US/VPWP_ENUS.PDF
You must ask more specific questions.