Pressure Compensator Adjustment: 5-35 Bar to 10-70 Bar

[Kevin1092]

Hello,

I was looking on the modular pressure compensator and on the bottom of the page there is:

Could anyone explain me why pressure compensator adjustable between 5 and 35 bar corresponds to values between 10 and 70 bar of total ΔP across the valve ?

When I bought this valve I thought my range will be 5-35 ΔP. As I checked it on my hydraulic test station minimum pressure difference which I can adjust is 10 bar.

Kevin

 

[Navin A S]

The pressure compensator is designed to adjust the pressure difference across the valve in order to control the flow rate. This is done by balancing the pressure in both sides of the valve. When the pressure on one side is higher, the flow rate will be larger, and when the pressure on the other side is higher, the flow rate will be smaller. Therefore, the pressure compensator must be adjustable between 5 and 35 bar to balance the pressure difference across the valve and achieve the desired flow rate. Because of this, the total pressure difference across the valve is actually 10-70 bar.