Hydraulic control valve removal method

Hydraulic control valve is a self-lubricating valve body using water, without the need for additional oil lubrication. If the parts in the main valve are damaged during the use of the hydraulic control valve, we need to replace the parts of the hydraulic control valve. At this time, it is the most important to master the dismantling method of the hydraulic control valve. If the disassembly method is wrong, it is very easy to cause damage. What is the specific disassembly method?

1. Close the main valve front and rear gate valves first.

2. Loosen the pipe fitting screw on the main valve cover and release the pressure in the valve.

3. Remove all screws, including nuts for the necessary copper tubes in the control line.

4. Take the valve cover and spring.

5. Remove the shaft, diaphragm, piston, etc., and do not damage the diaphragm.

6. After removing the above items, check if the diaphragm and the O ring are damaged. If there is no damage, please do not compete for internal parts.

7. If it is found that the diaphragm or O-ring is damaged, loosen the nut on the shaft core and disassemble the diaphragm or ring by the Zhejiang, and replace it with a new diaphragm or O-ring.

8. Check in detail whether the internal valve seat, shaft core, etc. of the main valve are damaged, if any other debris is cleared inside the main valve.

9. Install the main valve in the reverse order and replace the assembled parts. Note that the valve cannot be stuck.