Electric explosion-proof butterfly valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Electric explosion-proof butterfly valve

  • [Valve model]: FBD971X，FBD941X，FBD973H，FBD943H
  • [Diameter specification]: DN50～DN1200
  • [Structure]: Medium linear, three eccentric (wafer 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 gas, air, liquid, dust and other media
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  • Electric explosion-proof butterfly valve

Product features

Electric explosion-proof butterfly valve is composed of flange butterfly valve (wafer type butterfly valve) equipped with explosion-proof electric actuator. It is an explosion-proof valve specially used for flammable and explosive gas, liquid or dust and other media. The equipment has undergone anti-static treatment. The protection level is generally IP65.67.68, and the explosion-proof level is Exd Ⅱ BT4 or CT4. According to the difference of medium temperature, different sealing forms are selected, which are divided into metal sealing and soft sealing structures. Switch type or adjustable explosion-proof electric butterfly valve can also be selected according to the needs of working conditions (input 4~20mA current signal control to adjust the flow), which plays an indispensable role in the field of modern industrial automation control.

Electric explosion-proof butterfly valve (flange type) Electric explosion-proof butterfly valve (wafer type)
Application of electric explosion-proof butterfly valve:
 
Explosion proof electric butterfly valve can be widely used in the industrial process automatic control system of food, environmental protection, light industry, petroleum, chemical industry, teaching equipment, paper making, electric power and other industries to regulate the flow and intercept the medium on the water supply and drainage and gas pipelines.
Structural principle of electric explosion-proof butterfly valve:
 
The structural principle of explosion-proof electric butterfly valve is that all parts of the equipment that may ignite explosive media are enclosed in an enclosure, and the enclosure can withstand the explosion of combustible media penetrating into the interior of the enclosure without damage through any interface or structural gap of the enclosure. The flameproof enclosure separates the internal space of the equipment from the surrounding environment. When it explodes, the shell can withstand the explosion pressure without damage. At the same time, the shell structure gap can cool the flame, reduce the flame propagation speed or terminate the acceleration chain, so that the flame or dangerous flame products cannot pass through the explosion-proof gap to ignite the external explosive environment, thus achieving the purpose of explosion-proof.
Action type: general switch type, regulating type (4~20mA)
Ambient temperature: - 30 ℃~+70 ℃
Power supply voltage: AC220V, AC380V (other customized DC24, etc.) 50/60Hz
Protection grade: IP67, IP68 optional
Function options (optional)
Explosion proof type: explosion-proof grade: d Ⅱ BT3/T4
Signal feedback: active signal, S passive signal
With heater: the elements inside the actuator can be dried in a humid environment (optional)
Manual function: the electric actuator has the function of manually opening and closing the valve
Regulating type: input 4~20mA signal to realize valve regulating function

technical parameter

Design standard of electric explosion-proof butterfly valve:
Design standard: GB/T2238-1989
Flange connection size: GB/T9113.1-2000; GB/T9115.1-2000； JB78
Structure length: GB/T12221-1989
Pressure test: GB/T13927-2000; JB/T9092-1999
Material of electric explosion-proof butterfly valve parts:
Valve body: nodular cast steel, cast steel, alloy steel, stainless steel
Butterfly plate: gray cast iron, nodular cast steel, cast steel, stainless steel and special materials
Sealing ring: various rubber, PTFE, stainless steel
Valve rod: 2Cr13, stainless steel

Performance specification of electric explosion-proof butterfly valve:

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

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery method, and the fluctuation of the price of valve raw materials, the price of valves will have a big difference immediately, so our products have not been marked with prices on the website, please understand.

If you select a valve product on this website and need to know the price or obtain relevant technical information, please contact us. We will reply immediately, and can select appropriate valve products for you according to your requirements, so that your procurement process is easy and pleasant.

Quotation process:

1. Please fax the name (or product model) of the valve you selected, the required order quantity, packaging requirements, delivery time, your company name, your company location and contact information to 021-36311208 Or telephone: 021-60547555。

2. After receiving the customer's purchase list, our company will provide the customer with various services such as valve quotation "price list", model selection "valve model" and technical guidance as soon as possible.

3. Specific matters: delivery date, special requirements, etc.

Ordering Instructions

1、 If the customer has special requirements for the product, the following instructions must be provided in the order contract:
(1) Valve body material (such as plastic, cast steel, stainless steel...)
(2) Connection type (such as flange, thread, clamp, etc.)
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Power supply voltage, air supply pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acid-base)
2、 The company configures various driving devices according to the special requirements of customers. (electric control, pneumatic control)
3、 If the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model (see the description of valve model preparation for details), and sign the contract on the condition that both the supplier and the buyer have the same understanding.
4、 After the customer tells the required valve model, specification, quantity, delivery time and place, the deposit of 20% of the total amount or the full payment for goods shall be remitted to our company's account in time, and the rest of the payment for goods shall be remitted before shipment, so as to arrange shipment in time.
5、 After the purchase is confirmed, our company will produce in strict accordance with the delivery date. The product processing cycle is generally 3 to 30 days, depending on the type and quantity of the order, and the specific delivery time is subject to the contract. In order to ensure that the goods you ordered are in place in time, please try your best to order earlier.
6、 Our company provides network distribution services according to the needs of customers, delivering goods to the branches (offices) of customers in major cities, and implementing door-to-door delivery services. After the products are accepted, our company will provide after-sales service.