The electric control valve is a hydraulically operated valve that uses a solenoid valve as a pilot valve. It is often used for automatic control in water supply and drainage and industrial systems. The control response is accurate and fast. The pipeline system is turned on and off according to the electric signal to realize remote operation. Hydraulic electric control valves can replace gate valves and butterfly valves for large electric operating systems. The valve closing speed is adjustable and it is smoothly closed without pressure fluctuations. The valve is small in size, light in weight, simple in maintenance, convenient to use, safe and reliable. The solenoid valve can be used with AC 220V or DC 24V. It can be either normally open or normally closed according to various occasions. Â Â Â Structural features and uses of electronically controlled hydraulic control valves The electronically controlled hydraulic control valve consists of a main valve, a solenoid valve, a needle valve, a ball valve, a micro-filter and a pressure gauge to form a hydraulic control take-over system. A remote control that opens and closes the valve can be achieved by a solenoid valve. With the addition of an attachment, you can control the speed of opening and closing. The electronically controlled hydraulic control valve uses a pilot valve to control the opening and closing of the valve to save energy. Can replace other valve large electric devices. Electronically controlled hydraulic control valve products are widely used in water supply pipe network systems and urban water supply projects in high-rise buildings and living areas. Working principle of electronically controlled hydraulic control valve When the valve feeds water from the inlet end, the water flows through the needle valve into the main valve control chamber. When the electromagnetic pilot valve is opened, the water in the control chamber flows out through the electromagnetic pilot valve and the ball valve. The opening of the ball valve is greater than the opening degree of the needle valve, the pressure in the main valve control chamber is very low, and the main valve is in the fully open state. When the solenoid valve is closed, the water in the main valve control chamber cannot flow out, the control chamber is boosted, and the diaphragm is pushed to close the main valve. Electronically controlled hydraulic control valve maintenance: Filters should be installed before the hydraulic control valve and should be easy to discharge. The hydraulic control valve is a self-lubricating valve body that does not require additional oil lubrication. If the components in the main valve are damaged, please follow the instructions below for disassembly. (Note: The damage to the inner valve is generally diaphragm and o-ring, and other internal parts are rarely damaged) 1. First close the front and rear gate valves of the main hydraulic control valve. 2. Loosen the pipe joint screw on the main hydraulic control valve cover to release the pressure inside the valve. 3. Remove all screws, including the nuts of the necessary copper tubes in the control line. 4. Take the hydraulic control valve cover and spring. 5. Remove the shaft core, diaphragm, piston, etc., and do not damage the diaphragm. 6. After removing the above items, check the diaphragm and the O-ring for damage; if there is no damage, please do not contend for the internal parts. 7. If the diaphragm of the hydraulic control valve or the o-ring is damaged, loosen the nut on the shaft core, disassemble the diaphragm or the ring, and replace it with a new diaphragm or o-ring. . 8. In detail, check whether the internal hydraulic control valve seat and shaft core of the main valve are damaged. If there are other debris, clean them out inside the main valve. 9. Install the replacement parts in the reverse order in the order of the main valve, pay attention to the valve can not be jammed. Spice Novelties Co.,Limited , https://www.wholesale-adult-toys.cn