MKZ mine explosion-proof electric gate valve explosion-proof electric gate valve explosion-proof protection class is IP68, and it is one of the few companies that have mine coal safety and explosion proof certificates. Mine explosion-proof electric gate valve is suitable for flammable and explosive occasions, with high safety factor, strong operation function and stable performance. Explosion-proof products are dI and dIIBT4, dI is suitable for non-excavation face of coal mines, dIIBT4 is used in factories, and it is suitable for explosive gas mixtures with environment of IIA, IIB T1-T4.
Mine explosion-proof electric gate valve performance in line with JB/T8528-1997 <ordinary type valve electric device technical requirements> provisions. The explosion-proof performance meets the requirements of GB3836.1-2000 "General requirements for explosion-proof electrical equipment for explosive atmospheres" and JB/T8529-1997 "Technical conditions for explosion-proof electrical valve actuators". And certified by the national explosion-proof electrical product testing center, obtained the explosion-proof certificate.
Integral mine explosion-proof electric gate valve electric equipment is derived from Z common type, adding a lot of electrical and electronic components, the overall general type of electrical part is mainly composed of multi-function module MK1 remote control module MK2 button box indicator, open Degree meter, contactor and other components. The multi-function module MK1 is composed of a phase identifier XS, a contactor interlock protector HB and a DC power supply DC. The remote module MK2 consists of four solid state relays and three dial switches. The overall adjustment of the electrical part consists of the adjustment module TMK, contactors and other components. The control line is 220V, 50Hz (special order 60Hz); remote control is 24VDC.
Mine explosion-proof electric valve regulating module can receive and output 4 ~ 20ma standard signal. The electrical components are mounted on a reversible board to adjust the torque control, stroke controller, and opening mechanism. There are three buttons on the button box, the middle is the scene / remote control conversion button, the left side of the site off the valve button, the right side of the site to open the valve button, cover the button box for the remote control, open the lid for on-site operation.
MKZ mining explosion-proof electric valve valve features:
1. The valve adopts pressure self-tightening seal or valve body, bonnet gasket sealing structure, reliable! Safe and reliable use.
2. The valve flap adopts a universal top structure in the middle of the double gate plate, which can automatically adjust the valve flap and the sealing surface of the valve seat to ensure the sealing of the valve. At the same time, the structure is easy to maintain, saves money, and the valve flap is interchangeable.
3. Cobalt-chromium-tungsten cemented carbide is formed by plasma spray welding on the valve disc and valve seat sealing surface. The sealing surface has high hardness, abrasion resistance, abrasion resistance and long service life.
4. The valve stem is made of nitrided steel, surface nitrided, high hardness, anti-scratch, corrosion resistance, long service life.
5. The manual valve is opened by the manual mechanism or the handwheel at the time of impact. Reduce valve operating force.
6. The valve can be installed anywhere in the pipeline while selecting the carbon steel or alloy steel valve according to the temperature of the medium and the medium.
7. When installing and commissioning the system for the first time, the valve must be opened to approximately half the position manually to prevent damage to the valve or the electrical device due to phase reversal of the motor.
8. The electric device is equipped with a torque control mechanism, an on-site operating mechanism, a hand, and an electric switching mechanism. In addition to local operation, remote operation, PLC control, 4~20mA current input and output intelligent control, etc. can also be performed.
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