Mining gas electric butterfly valve

D941X-10Q DN350 Gas Special Valve Mining Gas Special Valve Mining Gas Butterfly Valve Main Features and Applications
1. Compact structure, reasonable design, and good valve rigidity;
2. No installation direction requirements, bi-directional sealing, low flow resistance, long service life;
3. Adopting ZB and ZL series mining valve electric devices, safe and reliable;
4. Used in coal mines with JW explosive gas.
Mining electric butterfly valve, professional electric butterfly valve, MD941H-10C, MD941H-10C DN500, DN600 are mainly used in professional environments such as mines, coal mines, etc.
Mining electric butterfly valve, professional electric butterfly valve, MD941H-10C，MD941H-10C DN500，DN600， Explosion proof is one of the professional forms, and the explosion-proof professional form is to enclose all the components of the equipment that may ignite explosive gas mixtures in a shell. The shell can withstand the internal explosion of flammable mixtures that penetrate through any joint surface or structural gap of the shell without damage, and will not cause ignition of explosive environments formed by one or more gases or vapors on the outside.
Mining electric butterfly valve, professional electric butterfly valve, MD941H-10C, MD941H-10C DN500, DN600. All components that may generate sparks, arcs, and dangerous temperatures are placed inside a flameproof enclosure, which separates the internal space of the equipment from the surrounding environment.
There are gaps in the explosion-proof shell, and due to the breathing and gas permeation of electrical equipment, there may be explosive gas mixtures inside. When an explosion occurs, the shell can withstand the generated explosion pressure without damage. At the same time, the gaps in the shell structure can cool the flame, reduce the flame propagation speed, or terminate the acceleration chain, so that the flame or dangerous flame products cannot penetrate the explosion-proof gap and ignite the external explosive environment, thereby achieving the purpose of explosion-proof.
Explosion proof type; It is classified into Class I, IIA, IIB, and IIC according to the types of explosive gas environments allowed for use.

D941X-10Q DN350 Gas Special Valve Mining Gas Special Valve Mining Gas Butterfly Valve Execution Specification and Standards

The design, production, and inspection of dedicated gas valves and control boxes shall comply with (but not limited to) the following standards:
——Q/320421JLM001-2011 "Technical Conditions for Explosion proof Valve Electric Devices for Coal Mines" - GB/T 12224-2005 "General Requirements for Steel Valves"
——GB/T 12221-2005 "Structural Length of Metal Valves" - GB 12238-2008 "Elastic Seal Butterfly Valves with Flange and Clamp Connections"
——JB/T 8527-1997 "Metal Sealed Butterfly Valve" - GB/T 12227-2005 "Technical Conditions for General Valve Ductile Iron Castings"
——GB/T 12229-2005 "Technical Conditions for Carbon Steel Cast Iron Parts of General Valves" - GB/T 26480-2011 "Inspection and Testing of Valves"
——GB/T 13927-2008 "Industrial Valve Pressure Test" - GB/T 7928-1999 "General Valve Supply Requirements"
——GB12220-89 "General Valve Marking" - GB3836.1-2010 "Electrical Equipment for Explosive Gas Atmosphere Part 1: General Requirements"
——GB3836.2-2010 "Electrical Equipment for Explosive Gas Atmosphere Part 2: Explosion proof Type" d "" GB3836.3-2010 "Electrical Equipment for Explosive Gas Atmosphere Part 3: Increased Safety Type" e ""
——GB/T24922-2010 "Technical Conditions for Explosion proof Valve Electric Devices" - Q/320421JLM002-2011 "Control Box for Explosion proof Valve Electric Devices Used in Coal Mines"
——Q/320421JLM005-2011 "Explosion proof Valve Electric Device Control Box for Coal Mines"

5、 Mining supporting electric device (gas specific valve manufacturer provides model and selected valve matching)

5.1 Applicable environment: Contains explosive mixtures such as gas and coal dust, but does not have destructive insulating gas environment, relative humidity: ≤ 95% (at+25 ℃).
5.2 Rated working voltage: AC660V or AC380V 5.3 Rated power frequency: 50Hz
5.4 Rated control current: ≤ 10A 5.5 Signal input impedance: ≤ 150 Ω Signal output impedance: ≤ 700 Ω Signal current 36mA (output)
5.6 Environmental temperature: -20~+40 ℃ 5.7 Explosion proof mark: Ex dI Mb 5.8 Protection level: IP68