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Characteristics of explosion-proof electric gate valves
Characteristics of explosion-proof electric gate valves for mining:
① The valve adopts a pressure self tightening sealing or valve body, valve cover gasket sealing structure, which is trustworthy! Safe and reliable use.
② The valve disc adopts a double gate structure with a universal top in the middle, which can automatically adjust the sealing surface of the valve disc and valve seat to ensure the sealing of the valve. At the same time, this structure is easy to maintain, saves costs, and has good valve disc interchangeability.
③ The sealing surfaces of the valve disc and valve seat are made of cobalt chromium tungsten hard alloy by plasma spray welding. The sealing surface has high hardness, wear resistance, scratch resistance, and long service life.
④ The valve stem is made of nitrided steel with surface nitriding treatment, high hardness, scratch resistance, corrosion resistance, and long service life.
⑤ The electric device is equipped with torque control mechanism, on-site operation mechanism, and manual and electric switching mechanism. In addition to on-site operation, remote operation, PLC control, and intelligent control of 4-20mA current input and output can also be carried out.
⑥ The manual valve is opened by a manual mechanism or a handwheel upon impact. Reduce valve operating force.
⑦ Valves can be installed at any position in the pipeline, and carbon steel or alloy steel valves can be selected based on the temperature of the medium and medium.
⑧ During the initial installation and debugging, the valve must be manually opened to about half the position to avoid damage to the valve or electrical installation due to the reverse phase sequence of the motor.
