Main features:

1. When the pressure difference of the valve changes, the flow of the valve becomes smaller.

2. When the oil temperature changes, the flow rate is small.

3. The flow adjustment range is large, which can not be blocked easily in small flow, and can get very small steady flow.

4. When the valve is fully open, the pressure loss of the valve is small.

5. Valve leakage is small.For high pressure valves, the adjustment moment is small.