Ningbo RMI Plastic Co.,Ltd

Ningbo RMI Plastic Co.,Ltd

Principle and Characteristics of Electric Control Valve

2022 09/30

Electric Control Valve is a hydraulic operated valve with solenoid valve as the guide valve. Often used in the automatic control of water supply and drainage and industrial system, the control response is accurate and fast, according to the electrical signal remote control to open and close the pipe road system, to achieve remote operation. Replacing gate valve and butterfly valve for large electric operating system. The valve closing speed is adjustable, and it is closed smoothly without causing pressure fluctuations. The valve is small in size, light in weight, easy in maintenance, easy to use, safe and reliable. Plastic solenoid Valve can choose AC power 220V, or DC power 24V, can be selected according to various occasions often open or often closed type can be.

Working principle: When the valve supplies water from the inlet end, the water flows through the needle valve into the main valve control room. When the PVC Solenoid Valve opens, the water in the control room flows out through the solenoid valve and ball valve. The ball valve opening degree is greater than the needle valve opening degree, the pressure in the main valve control room is very low, and the main valve is in the full open state. When the solenoid valve is closed, the water in the main valve control room cannot flow out. The control room rises the pressure and pushes the diaphragm to close the main valve.

Installation requirements: the 600X Electric Valve should be installed horizontally. When installed horizontally, the valve net should be upward. Water relief valve of the fire water supply system. When the automatic sprinkler system requires pressure relief, the pressure relief valve shall be set in front of the alarm valve (along with the direction of water flow), but not equipped with a single alarm valve, and shall not be used by the equipment factory. The pressure relief valve for hot water supply works shall be of hot water type.

For the hot water supply project with main pipe circulation mode (semi-circulation mode), the pressure reducing valve shall be the same as the cold water engineering. For the hot water supply project with riser circulation mode (full circulation mode), the pressure reducing valve shall prevent the damage of hot water circulation, and the pressure of each partition return pipe shall be balanced at the confluence point.

Product characteristics:

1, equipped with intelligent direct stroke Plastic Electric Actuator, small volume, full specifications, light weight, large thrust, convenient operation, no adjustment potentiometer, high reliability, small noise.

2. The electric actuator adopts integrated structure design, with self-diagnosis function, and it is very convenient to use and adjust.

3. With digital display, the control signal value, feedback signal value and electric operation value can be seen.

4. Function of intelligent Electric Actuator: fault judgment, alarm and protection function with broken control signal. The broken signal can cause the actuator or open; or off; or hold; or set anywhere between 0 and 100%. Valve plugging and fault judgment, pipe reporting and protection function.

5. A three-way valve can be used instead of two single-seat valves or two-seat valves, which occupies a small space volume and saves the installation of pipes and costs.

6. It has the characteristics of high adjustment accuracy and good adjustment performance, allowing a temperature difference of l50.

7. In addition to the bushing guidance at the reading cover, the side of the valve core and the inner surface of the valve seat also have a guiding effect, with a large guiding area and reliable work.

8. The corrugated pipe seal type forms a safe seal for the moving valve stem and blocks the liquid leakage.