Body:carbon steel

   Channel position: straight through

   Purpose: adjusting

   Structure:fixed ball   connection:flange  drive:hydraulic

Hydraulic valve device

1) The structure is simple, compact and small volume;

2)It is stable and reliable;

3)It can get a lot of output torque;

4) The output torque can be accurately through constant pressure relief valve adjustment, including the opening and closing torque adjustment, and even can be reflected directly by hydraulic pressure instrument;

5) speed regulation is convenient;

6) In the sudden accident, still can use the accumulator with one or several power operation. The long distance pipeline automatic emergency cut-off valve and wellhead discharge valve has a special significance.

Hydraulic valve gear faults

1) the oil temperature are greatly influenced by environmental temperature, the oil temperature change caused by oil viscosity changes, affect the operation;

2) piping trouble, easy to produce leakage;

3)it is not suitable for the signal to produce a variety of operations ,such as signal amplification, memory, logic and arithmetic.