5/3-way proportional directional control valve VPWP

AI Thread Summary
A 5/3-way proportional directional control valve (VPWP) features five ports and operates in three states, with flow proportional to solenoid current. It typically functions in electrically controlled hydraulic systems, utilizing a proportional crossover spool design that is spring-loaded to a neutral position. In the neutral state, all paths are blocked, while the end positions connect the ports differently, allowing fluid flow. The valve includes essential ports for pump and tank connections, as well as extend and retract functions, with a potential fifth port for signaling or interlock purposes. Understanding the specific application and valve type is crucial for effective use and troubleshooting.
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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. :cry:
 
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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.
 
detail_service_p_wv_010_280.jpg
P_SCH_00992136_pp.png
thanks but I don't want solenoid , I want about this
indir.jpg
 
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Do you understand the diagrams ?
 
not so much , I'm looking for something article-style
 
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.
5port_3state.png
 
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