Discussion:
proportional valve

does anybody now of a control system that will run a proportional valve hydraulic system
  • Posted 23 Apr 2012 05:15
  • By keith_t
  • joined 3 Nov'09 - 100 messages
  • essex, United Kingdom
Showing items 1 - 8 of 8 results.
thank you for the information its exactly what i needed
i had a feeling that they could be controled by a pot. the motor is constant and the lift/lower lever is a pot' controled switched model

many thanks again
  • Posted 24 Apr 2012 04:14
  • By keith_t
  • joined 3 Nov'09 - 100 messages
  • essex, United Kingdom
to clarify, this will only work if the motor speed is constant and you want only to vary the hyd oil flow. if you want to vary motor speed you will have to use a controller (or start a fire with some very large resistors)
  • Posted 24 Apr 2012 04:07
  • By toyzilla
  • joined 29 Mar'10 - 175 messages
  • Texas, United States
older JLG manlifts used a direct proportional system using bertea valves. might check there. many can be controlled by varying input voltage with a standard potentiometer.
  • Posted 24 Apr 2012 04:03
  • By toyzilla
  • joined 29 Mar'10 - 175 messages
  • Texas, United States
look into some of the larger xl series hysters, they used a proportioning valve to control hydraulic flow between steering and hydraulics.
  • Posted 24 Apr 2012 02:57
  • By bigGlittlestar
  • joined 12 Aug'08 - 139 messages
  • United States
thanks for the help but does anybody know how they can be controled without a control systen ie pcb or whatever
as i need to get one to operate on a lift that has no hydraulics at present
  • Posted 24 Apr 2012 00:54
  • By keith_t
  • joined 3 Nov'09 - 100 messages
  • essex, United Kingdom
Vickers do a KDG4-3 you could try a search on that!Nick
  • Posted 23 Apr 2012 20:37
  • By nick_c
  • joined 17 Jun'11 - 116 messages
  • south glos, United Kingdom
if your looking for what i think you are....... you may want to check into the sizzorlift industry though, genie, skyjack, jlg etc. They are commonly used on those machines.
  • Posted 23 Apr 2012 20:01
  • Modified 23 Apr 2012 20:02 by poster
  • By Jplayer
  • joined 12 Apr'07 - 407 messages
  • North Carolina, United States
John Player Jr
_________________
LiftOne, LLC
Charlotte, NC
Email: jplayer@liftone.net
Hi keith;
Are you referring to pressure controlled, volumn controlled, or directional controlled proportion valves?
  • Posted 23 Apr 2012 09:22
  • By MEngr
  • joined 15 Jan'11 - 247 messages
  • Missouri, United States

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