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Home Parker Community Technologies Hydraulics Forum Independent meter in meter out directional valve
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  • Date PER AGESSON
    PER AGESSON
  • Date 25 Jan 2019 10:54 PM
  • Replies 3 replies
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Independent meter in meter out directional valve

By PER AGESSON on 25 Jan 2019 10:54 PM
PER AGESSON
  • 25 Jan 2019 10:54 PM

Eaton, Danfoss, Sun etc has directional control valves for independent meter in and meter out control.

Where is Parker in this developement?

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  • Per Nilsson
    Per Nilsson 21 days ago

    We demonstrated  the ECOformance solution at the last Las Vegas ConExpo. The ECOformance solution offers independent metering control of an actuator using one valve section control. The ECOformance system is based on the proven pre-compensated loadsensing valves with the additional feature of being able to split the meter in and meter out control for much improved machine controlability and efficiency gain. The solution is further enhanced with onboard electronics specifically designed and tested for the harsh mobile valve environment. Parker is working with several large customers to integrate the ECOformance solution in their total machine system. The system gains in controlability and efficiency is significant using the ECOformance system and will be more and more common in the next generation hydraulic system solutions for our customers. I can be available for additional comments and explanations would such need develop for you Per,  thank you

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  • PER AGESSON
    PER AGESSON 21 days ago in reply to Per Nilsson

    Hjärtligt Tack Per!
    I can see that it is within the  K220 LS valve concept.

    Do you have any more info that explains a bit more in detail how meter in and meter out acts independently in the valve? It is obvious that both work ports use the same spool for both metering in and metering out right?
    I can see a Rottne forwarder on the broscyr

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  • PER AGESSON
    PER AGESSON 21 days ago in reply to PER AGESSON

    Oops... hit the wrong button before completing the post...
    Are there any other Scandinavian logging equipment manufacturers that use K220 LS for independent metering or any other closed-loop application?
    I am looking forward to seeing some "colored" cross-cut images of the valve in different metering actions.

    ps. I also have posted about another issue here on the Hydraulic forum, that's about however the VFO system (found it here on Parker site) is the same as the CPU system or is VFO putting something new on the table?

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