Explosion proof pneumatic ball valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Explosion proof pneumatic ball valve

  • [Valve model]: FBQ641F，FBQ641H
  • [Diameter specification]: DN15～DN300
  • [Structure]: Floating straight through type
  • [Valve body material]: Cast steel WCB, stainless steel 304, stainless steel 316
  • [Nominal pressure]: PN16、PN25、PN40、PN64
  • [Applicable temperature]: -30℃～400℃
  • [Application Scope]: Combustible gas, steam, oil, corrosive medium, etc
Consult the manufacturer Online Message
  • Explosion proof pneumatic ball valve

Product features

The explosion-proof pneumatic ball valve is composed of the ball valve and the pneumatic actuator equipped with explosion-proof solenoid valve and explosion-proof limit switch. Only input 0.4-0.7MPa air source to switch the valve in two positions. The pneumatic explosion-proof ball valve is equipped with fire prevention and electrostatic discharge devices (springs are set between the ball, valve stem and valve body), which will not contact with sparks. It has good explosion-proof performance and is widely used in flammable and explosive working conditions such as steam, chemical, gas and oil products. Other electrical control elements such as solenoid valves and limit switches with different explosion-proof grades can be assembled according to different media and occasions of the pipeline.
 
Function principle of explosion-proof pneumatic ball valve:
 
The pneumatic explosion-proof ball valve actuator can be divided into single action and double action according to the different action forms. The single action type is automatically reset by the spring. Its unique advantage is that the ball valve will automatically return to the open or closed state in case of mechanical failure or no air supply. The double acting switch action is driven by the air source; That is, the ventilation is on, the ventilation is off, and the ventilation is cut off and kept in place.
Optional accessories of explosion-proof pneumatic ball valve:
 
Actuator model: GT, SR, ST, AT, AW series single and double acting pneumatic actuator
Gas supply pressure: 0.4~0.7MPa
Air source interface: G1/4 ", G1/8", G3/8 ", G1/2"
Ambient temperature: - 30~+70 ℃
Action form:
Single acting actuator: air to close (B) - valve position open (FO) in case of air loss; Air to open type (K) -- valve position closed in case of loss of air (FC)
Double acting actuator: air to close (B) - valve position is kept (FL) in case of loss of air; Air to open type (K) -- valve position is kept (FL) in case of loss of air
Accessories available:
Positioner, explosion-proof solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc
 
Structural Drawing of Explosion proof Pneumatic Ball Valve
Structural Drawing of Explosion proof Pneumatic Ball Valve

technical parameter

Nominal diameter DN15～DN300(mm)
Nominal pressure 1.6、2.5、4.0、6.4MPa
Connection type Flange type, threaded connection, welding
Packing PTFE, metal graphite spiral wound gasket
Valve core form "O" type spherical valve element
Drive mode Air source drive 0.4-0.7Mpa (with manual device)
Leakage Q Soft seal: zero leakage; Hard seal: ≤ 10-5 of rated flow
body material Carbon steel, stainless steel 304, 316
Valve plate material Carbon steel, stainless steel 304, 316
Scope of application Gas , Steam , oil products, corrosive media, etc
Actuator Single acting (spring return function), double acting (air to open and air to close)
control mode Switch type (switch two position control), regulating type (valve positioner 4-20mA signal)

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.