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Explosion proof pneumatic ball valve

  • [valve model]: FBQ641F,FBQ641H
  • [diameter specification]: DN15~DN300
  • [structural form]: Floating 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
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  •  Explosion proof pneumatic ball valve

Product features

Explosion proof pneumatic ball valve is composed of ball valve and pneumatic actuator equipped with explosion-proof solenoid valve and explosion-proof limit switch. The valve can be opened and closed in two positions by inputting 0.4-0.7mpa air source. The pneumatic explosion-proof ball valve is equipped with fire-proof and static discharging devices (springs are set between the ball, valve rod and valve body), so it will not contact with sparks. It has good explosion-proof performance and is widely used in flammable and explosive conditions such as steam, chemical industry, gas, oil products, etc. According to the medium and occasion of the pipeline, the solenoid valve and limit switch with different explosion-proof grades can be assembled.
 
Working principle of explosion proof pneumatic ball valve:
 
Pneumatic explosion-proof ball valve actuator can be divided into single acting and double acting according to different action forms. The single acting type is automatically reset by spring. Its unique advantage is that in case of mechanical failure or no air supply, the ball valve will automatically return to the open or closed state. The double action switch action is driven by the air source, that is, ventilation on, ventilation off, air cut to maintain the original position.
Optional accessories for explosion proof pneumatic ball valve:
 
Aw, Sr, double acting actuator
Gas supply pressure: 0.4 ~ 0.7MPa
Air source interface: G1 / 4 ", G1 / 8", G3 / 8 ", G1 / 2"
Ambient temperature: - 30 ~ + 70 ℃
Form of action:
Single acting actuator: air to close (b) - valve position open (FO) in case of gas loss; air open (k) - valve position close (FC) during gas loss
Double acting actuator: air close (b) - valve position keeping (FL) when losing gas; air opening (k) - valve position keeping (FL) when losing gas
Accessories available:
Positioner, explosion-proof solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, hand wheel 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 form Flange type, threaded connection, welding
Packing Polytetrafluoroethylene (PTFE), metal graphite spiral wound gasket
Spool form "O" type spherical valve core
Driving 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, corrosive media, etc
Executive Agency Single acting (spring return function), double acting (air opening and air closing)
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 mode, as well as the fluctuation of valve raw material price, the valve price will be greatly different. Therefore, the price of our products is not indicated on the website. Please understand.

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

Quotation process:

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

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

3. Special requirements, etc.

Ordering instructions

1、 If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
(1) Valve body material (such as: plastic, cast steel, stainless steel...)
(2) For example, flange connection
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Supply voltage, air pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acidity or alkalinity)
2、 The company configures all kinds of driving devices according to the special requirements of customers. Pneumatic control
3、 If the customer provides the determined valve type and model, the customer shall correctly explain the meaning and requirements of the valve model (for details, refer to the description of valve model preparation), and sign the contract under the condition that both parties understand and agree.
4、 After the customer tells the required valve model, specification, quantity and delivery time and place, 20% of the total amount of deposit or full payment shall be timely remitted to our company's account, and the rest shall be remitted before delivery, so as to arrange delivery in time.
5、 After confirming the purchase, our company carries on the production in strict accordance with the delivery date. According to the different types and quantities of orders, the product processing cycle is generally 3 to 30 days, and the specific delivery time is subject to the contract. Please make sure that the order is in time for you.
6、 According to the needs of customers, our company provides network distribution services, delivering goods to the branches (offices) in major cities, and providing door-to-door delivery service. After the product acceptance, our company will provide after-sales service.