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COVNA Electric Actuator Gate Valves Features

Blog,Valves Study | Nov.10.2020

The electric actuator gate valve is a kind of gate valve. The driving method of the electric gate valve is electric actuator. These valves use an electric motor to operate the gate valve and control the flow of media. Connection types are flange type, welded type and clip type.

Electric gate valves structure features:

①The valve adopts pressure self-tightening seal or valve body and bonnet gasket seal structure, which is trustworthy! Safe and reliable to use.

②The valve disc adopts a double gate with a universal top structure in the middle, which can automatically adjust the fit between the valve disc and the sealing surface of the valve seat to ensure the sealing of the valve. At the same time, this structure is convenient for maintenance, cost-saving, and valve disc interchangeability is better.

③The sealing surface of valve disc and valve seat is made of cobalt-chromium-tungsten cemented carbide by plasma spray welding. The sealing surface has high hardness, abrasion resistance, abrasion resistance and long service life.

④The valve stem is made of nitriding steel with surface nitriding treatment, high hardness, scratch resistance, corrosion resistance and long service life.

⑤The electric device is equipped with a torque control mechanism, an on-site operating mechanism and a hand and electric switching mechanism. In addition to local operation, remote operation, PLC control, 4-20mA current input and output intelligent control, etc. can also be carried out.

⑥The manual valve is opened by the manual mechanism or the hand wheel upon impact. Reduce valve operating force.

⑦The valve can be installed at any position of the pipeline, and the carbon steel or alloy steel valve can be selected according to the temperature of the medium and the medium.

⑧When installing and debugging for the first time, the valve must be manually opened to about half of the position, so as to avoid damage to the valve or electrical equipment due to reverse motor phase sequence.

Technical Parameter of Valve Actuators
Power supply conventional: single phase 220v, three phase 380v
special: three phase 400v, 415v, 660v(50Hz, 60Hz)
Working environment Ambient temperature: -20 ~ + 60 ℃ (special temperature environment can be customized)
Relative humidity: 95% (at 25 ° C)
Protection level Outdoor type and explosion-proof type are IP55 (IP65, IP67, IP68 can be provided for special order)
Working system short time 10 minutes (15-60 minutes for special order)

multi turn electric actuator

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