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Pneumatic fixed ball valve

  • [valve model]: Q647F,Q647H
  • [diameter specification]: DN50~DN500
  • [structural form]: Two stage casting valve body
  • [valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [nominal pressure]: PN16、25、40、64bar
  • [applicable temperature]: -40℃ - 425℃
  • [application scope]: Petrochemical, gas equipment, power equipment, environmental protection water treatment
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  •  Pneumatic fixed ball valve

Product features

Pneumatic fixed ball valve is usually connected by flange, and the ball is fixed. It adopts the design of upper and lower stem fixed valve core (shaft support type) and movable seal seat. When closed, under the action of medium pressure, the ball will not produce displacement and the cultivation is more stable. It is commonly used in various pipelines with high pressure and large diameter. Pneumatic fixed ball valve is usually connected with the ball on the upper and lower shaft, equipped with rolling bearings or sliding bearings, in order to reduce the friction of the journal when opening and closing, and reduce the operating torque, so it is widely used in various industries.
Pneumatic fixed ball valve application:
 
Most of the pneumatic flange fixed ball valves are connected by flange, which is suitable for long-distance pipeline and general industrial pipeline. Its strength, safety and harsh environment resistance are specially considered in the design. It is used to cut off or connect the medium in the pipeline. Different materials are selected, which can be applied to water, steam, oil, liquefied gas, natural gas, gas, nitric acid, acetic acid and oxidation It is widely used in petrochemical, electric power, water conservancy and other industries.

technical parameter

Nominal diameter DN15~DN200(mm)
Nominal pressure PN1.6、2.5、4.0、6.4MPa
Connection form Flange type
structural style Two stage casting valve body
Driving mode Air source control (compressed air 4-7bar)
Service temperature -40℃~425℃
Form of control Switch type (switch two position control), regulating type (4 ~ 20mA signal)
body material carbon steel WCB, stainless steel 304, 316, 316L
sealing material PTFE (polytetrafluoroethylene), ppl (para polyphenylene), metal seal (cemented carbide)

Optional functions of pneumatic fixed ball valve:
Driving mode Compressed air (with handwheel)
Air supply pressure 0.4-0.7mpa
air connection G1/4"、G1/8"、G3/8"、G1/2"
ambient temperature -30~+70℃
Form of action
Single acting (spring return): air to close (b) - valve position open (FO) in case of gas loss; air open (k) - valve position close (FC) when losing air
Double acting (ventilation switch): air off (b) - valve unchanged in case of loss of air (FL); air open (k) - valve unchanged in case of loss of air (FL)
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, hand wheel mechanism, etc

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.