Explosion-proof protection class IP68.
Suitable for flammable and explosive occasions, high safety factor, strong operating function, stable performance and so on. 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. The performance of this product complies with the requirements of JB/T8528-1997 <Technical Conditions for Common Type Valve Actuators>. 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 type 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, opening table, contactor Etc. 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 integral adjustment type electrical part consists of the adjustment module TMK, contactor and so on. The control line is 220V, 50Hz (special order 60Hz); remote control is 24VDC. The adjustment module can receive and output 4 to 20ma standard signals. 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.
Valve features:
1 Valve adopts pressure self-tightening seal or valve body, bonnet gasket sealing structure, reliable! Safe and reliable use.
2The flap adopts the middle top structure 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 Valve flap and seat sealing surface Cobalt-chromium-tungsten cemented carbide is formed by plasma spray welding. The sealing surface has high hardness, abrasion resistance, abrasion resistance and long service life.
4 Valve stem made of nitrided steel, surface nitrided, high hardness, scratch resistance, corrosion resistance, long service life.
5 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.
6 The manual valve is opened by a manual mechanism or a hand wheel at the time of impact. Reduce valve operating force.
7 The valve can be installed anywhere on the pipe while selecting the carbon steel or alloy steel valve according to the temperature of the medium and the medium.
8 During the initial installation and commissioning, 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.
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