Hydraulic control valve features, maintenance

The hydraulic control valve is a hydraulic control valve, which is composed of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge According to different purposes, functions and places of use, it can be developed 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 The filter shall be installed in front of the hydraulic control valve, and it shall be easy to drain Hydraulic control valve is a kind of water self-lubricating valve body, without additional oil lubrication In case of damage of parts in the main valve, please disassemble according to the following instructions (Note: generally, the damaged products in the inner valve are diaphragm and O-ring, and few other internal parts are damaged.) 1 Close the front and rear gate valves of the main valve first 2 Loosen the pipe joint screw on the main valve cover to release the pressure in the valve 3 Remove all screws, including nuts of necessary copper pipes in control pipeline 4 Take out the valve cover and spring 5 Take off the shaft core, diaphragm, piston, etc do not damage the diaphragm 6 After taking out the above items, check whether the diaphragm and O-ring are damaged; if there is no damage, please do not dispute the internal parts 7 If the diaphragm or O-ring is damaged, loosen the nut on the shaft core, disassemble the diaphragm or O-ring one by one, take it out and replace it with a new diaphragm or O-ring 8 Check whether the valve seat, shaft core, etc inside the main valve are damaged in detail If there are other sundries, clean them out inside the main valve 9 Install the replaced parts and components into the main valve in reverse order, and pay attention that the valve cannot be jammed.