Electric gate valve of Shanghai Automation Factory

Model：
Category：Electric Valve
origin：SHANGHAI

Electric gate valve of Shanghai Automation Factory is simply to use electric actuators to control the valve, in order to achieve the valve on and off. Which can be divided into upper and lower parts, the upper part of the electric actuator, the lower part of the valve. The action force is larger than the electric valve, the electric gate valve movement speed can be adjusted, the structure is simple, easy maintenance, the action process because of the gas itself buffer characteristic, is not easy to be jammed and damaged, but must have the air supply, and its control system also More complicated than electric valves. The electric valve is responsive, safe and reliable, and many of the plants with high control requirements are equipped with compressed air stations for pneumatic instrument control components. Electric is to be electric, and can control the flow of the device.

Characteristics of electric gate valve

① valve pressure from the tight seal or body, valve cover gasket sealing structure, trustworthy! Use safe and reliable.

② valve with double gate with a universal top structure, can automatically adjust the valve flap and valve seat sealing surface fit to ensure that the valve seal. At the same time this structure easy maintenance, cost savings, valve interchangeability is better.

③ valve, valve seat sealing surface with cobalt chromium tungsten carbide alloy by plasma spray welding, sealing surface hardness, abrasion resistance, anti-abrasion, long service life.

④ stem made of nitriding steel, surface nitriding treatment, high hardness, anti-abrasion, corrosion resistance, long service life.

⑤ electric device equipped with torque control mechanism, on-site operation agencies and hand, electric switching mechanism. In addition to local operations, but also can be remote operation, PLC control, 4 ~ 20mA current input and output intelligent control.

⑥ manual valve by the manual mechanism or impact when the handwheel open. Reduce the valve operating force.

⑦ The valve can be installed in any position of the pipe, at the same time according to the medium and medium temperature selection of carbon steel or alloy steel valve.

⑧ initial installation and commissioning, you must manually open the valve to about half of the position, so that the motor phase sequence lead to damage caused by the valve or electrical equipment.

What is the electric valve: electric valve simply is to use electric actuators to control the valve, in order to achieve the valve on and off. Which can be divided into upper and lower parts, the upper part of the electric actuator, the lower part of the valve.

Electric valve is divided into two kinds: one for the angle of the trip electric valve: the angle of the electric actuator with the angle of the trip valve to use, to achieve the valve within 90 degrees of rotation control pipe fluid on and off; the other is straight trip electric valve: Straight travel electric actuator with straight stroke valve to use, to achieve the upper and lower valve plate action control pipe fluid off. Usually in a higher degree of automation supporting the use of equipment, the valve horizontal installation of the best precision adjustment.

principle

Electric valve operating principle: electric valve is usually connected by the electric actuator and valve, after installation and commissioning to become electric valve. Electric valve using power as a driving force to turn on the electric actuator to drive the valve to achieve the valve switch, adjust the action. So as to achieve the switch on the pipeline or the purpose of regulation.

Solenoid valve is a type of electric valve; is the use of electromagnetic field generated by the electromagnetic coil to pull the spool, thus changing the valve body off, coil power, spool on the spring pressure to return.

use

Use of electric valve:

For the liquid, gas and air system piping media flow of the analog adjustment, is the AI control. In the control of large valves and wind systems can also be used to do two electric valve switch control.

Can have AI feedback signal, can be controlled by DO or AO, compared with large pipes and wind valves.

Switch form:

Electric valve drive is generally used to motor, open or close the action to complete the need for a certain amount of time analog, you can do regulation.

Nature of the work:

Electric valve drive is generally used motor, more resistant to voltage shocks. Solenoid valve is quick and fast off, generally used in small flow and small pressure, requiring a large switching frequency of the local electric valve instead. The opening degree of the electric gate valve can be controlled, the state has open, closed, half open half, you can control the flow of media in the pipeline and the solenoid valve does not meet this requirement. Pneumatic Gate Valve: Valve with compressed air.

Gate valve is one of the most common opening and closing valve, the use of gate (that is, open and close parts, in the gate opening and closing parts known as the gate or gate, gate called the gate) to turn on (fully open) or Cut off (in full) the medium in the pipe. It is not allowed to be used as a cut-off, the use of the gate should be avoided to open, due to high-speed flow of media erosion will accelerate the sealing surface damage. Gate in the vertical gate of the center line of the center line as a lift movement, like the gate cut off the same medium in the pipeline, so called the gate valve.