Thank you for your answer Adrian
Just to clarify, if you are using a material test stand (as i'm working with) you would use a proportional valve to control the supply pressure and a servo valve to control the flow to the actuator because of the better peformance characteristics?
//Hans
Hi all
I have a quick question about the use of servo- vs proportional valves. A hydraulic technician told me the other day that servo valves are used to control flow and proportional valves used to controle pressure. Does any one know if this is true and if why? Wont servo valves be just as...
Hi all
Just a quick question.. Will a sticky spool in a servo valve cause larger hysteresis with larger surply pressure?
The reason I ask is that we use valves rated to 3000 psi and in the data sheets hysteresis is given for 3000 psi. Howevwe our systems only deliver around 1000 psi and I would...
Hi there
I need to find a precise flowmeter for a hydraulic system. The flow meter should meet the follwing:
1) The flow i need to measure is between 0.3 and 40 gpm
2) the accuracy should be aronund 0.3%
3)As the flow is measured continuous it has to pick up changes in flow rather...
Hi again and thanks for the fast reply
As fare as I can tell the filters are working and the oil is not contaminated but I haven't used the teststand for a while so it might have been at some point. If this might be the problem a sticky spool would result i an abnormality when compared to a new...
Hi
I'm having a problem with a hydraulic teststand and have a suspicion that it might be because of a faulty servo valve. As we have plenty of oilsupply and a good cooling system the leakage isnt really a problem. My question now is if I just want to check if the valve is faulty and dont care...