The hydraulic control valve is the valve for water pressure control. The hydraulic control valve is composed of a main valve and its attached conduits, pilot valves, needle valves, ball valves and pressure gauges.
Type of hydraulic control valve
According to different purposes, functions and places of use, it can be evolved into remote control ball valve, pressure reducing valve, slow closing check valve, flow control valve, pressure relief valve, hydraulic electric control valve, water pump control valve, etc.
Installation of hydraulic control valve
A filter shall be installed in front of the hydraulic control valve to facilitate blowdown.
Maintenance method of hydraulic control valve
The hydraulic control valve is a self lubricating valve body with water, which does not need to be lubricated by additional oil. In case of damage to the parts in the main valve, please disassemble according to the following instructions. (Note: Generally, the damaged products consumed in the internal valve are diaphragms and circular rings, and other internal parts are rarely damaged)
1. First close the front and rear gate valves of the main valve.
2. Loosen the screw of the pipe fitting on the main valve cover to release the pressure in the valve.
3. Remove all screws, including the nuts of necessary copper pipes in the control pipeline.
4. Take off the valve cover and spring.
5. Remove the shaft core, diaphragm, piston, etc. without damaging the diaphragm.
6. After taking out the above items, check whether the diaphragm and circular ring are damaged; If there is no damage, please do not compete for the internal parts.
7. If the diaphragm or circular ring is found to be damaged, loosen the nut on the shaft core, disassemble the diaphragm or circular ring one by one, and replace it with a new diaphragm or circular ring after taking it out.
8. Check whether the valve seat and shaft core inside the main valve are damaged in detail. If there are other sundries inside the main valve, clean them out.
9. Assemble the replaced parts and components into the main valve in reverse order, and note that the valve shall not be jammed.
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