Electric explosion-proof clamp butterfly valve-Global supplier

No. 118, Building 4, Yulin Electromechanical City, No. 58 Xingyuan East Road, Zhangdian District, Zibo City, Shandong Province

Electric explosion-proof butterfly valve

Valve model: FBD971X，FBD941X，FBD973H，FBD943H

Diameter specification: DN50～DN1200

Structural form: Medium line type, triple eccentric (clamp type, flange)

Valve body material: cast steel WCB, stainless steel 304, stainless steel 316

Nominal pressure: PN10、PN16、PN25、PN40

Applicable temperature:- 40℃～450℃

Application scope: Combustible gases, air, liquids, dust and other media

Product features: fast opening and closing, with manual control, can be remotely controlled, suitable for flammable and explosive places

Introduction to electric explosion-proof solenoid valve:

The electric explosion-proof butterfly valve is composed of a flange butterfly valve (clamp type butterfly valve) assembled with an explosion-proof electric actuator. It is a type of explosion-proof valve specifically used for flammable and explosive gases, liquids, or dust media. The equipment has undergone anti-static treatment, and the protection level is generally IP65.67.68, with an explosion-proof mark of Exd Ⅱ BT4 or CT4. According to the different temperatures of the medium, different sealing forms are selected, which can be divided into metal sealing and soft sealing structures. It is also possible to choose switch type or regulating explosion-proof electric butterfly valves (input 4-20mA current signal control to adjust the flow rate) according to the needs of the working conditions. They play an indispensable role in the field of modern industrial automation control.

Application of electric explosion-proof butterfly valve:

Explosion proof electric butterfly valves can be widely used in industrial process automatic control systems such as food, environmental protection, light industry, petroleum, chemical industry, teaching equipment, papermaking, power and other industries to regulate flow and intercept media in water supply and drainage, gas pipelines.

Structure principle of electric explosion-proof butterfly valve:

The structural principle of explosion-proof electric butterfly valve is to enclose all components of the equipment that may ignite explosive media in one shell, and its shell can withstand the explosion of flammable media penetrating into the interior of the shell through any joint surface or structural gap without damage. The explosion-proof shell separates the internal space of the equipment from the surrounding environment. When it explodes, the shell can withstand the generated explosion pressure without damage, and the gap between 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.

Technical parameters of electric explosion-proof butterfly valve:

Function form: ordinary switch type, adjustable type (4-20mA)

Environmental temperature:- 30℃～+70℃

Power supply voltage: AC220V, AC380V (other customized DC24, etc.) 50/60Hz

Protection level: IP67, IP68 optional

Function options (optional)

Explosion proof type: Explosion proof grade: dIIBT3/T4

Signal feedback: active signal, S passive signal

Equipped with heater: capable of drying actuator components in humid environments (optional)

Manual function: The electric actuator has manual valve opening and closing functions

Adjustable type: Input 4-20mA signal to achieve valve adjustment function

Design standards for electric explosion-proof butterfly valves:

Design standards: GB/T2238-1989

Flange connection size: GB/T9113.1-2000； GB/T9115.1-2000； JB78

Structural length: GB/T12221-1989

Pressure test: GB/T13927-2000； JB/T9092-1999

Material of parts for electric explosion-proof butterfly valve:

Valve body: ductile cast steel, cast steel, alloy steel, stainless steel

Butterfly board: gray cast iron, ductile iron, cast steel, stainless steel and special materials

Sealing rings: various rubber, PTFE, stainless steel

Valve stem: 2Cr13, stainless steel

Performance specifications for electric explosion-proof butterfly valves:

Power crushing	AC220V、AC380V、4-20mA
supply voltage	4-20mADC, load resistance: ≤ 500Ω
Connection form	Clamp type and flange type
Explosion proof grade	IP65 (or IP67), explosion-proof mark: Exd Ⅱ BT4 or CT4
signal isolation	Three isolation of input signal, output signal, and power supply
Operating range	0～90°
ambient temperature	-25~+70 ℃, environmental humidity: ≤ 95%
body material	Carbon steel, stainless steel 304, 316