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Pneumatic V-type ball valve

  • [valve model]: VQ677F,VQ677H,VQ677Y
  • [diameter specification]: DN25~DN300
  • [structural form]: V-shaped ball core
  • [valve body material]: Cast steel WCB, stainless steel 304, stainless steel
  • [nominal pressure]: PN16、PN25、PN40、PN64
  • [applicable temperature]: -40~450℃
  • [application scope]: Mud, fiber, medium containing small suspended solids
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  •  Pneumatic V-type ball valve

Product features

Pneumatic V-type ball valve is a kind of regulating ball valve with V-shaped core. The valve core is 1 / 4 spherical shell, with V-shaped notch, large flow capacity, shear force and tight closing. According to the V-shaped angle formed by the V-shaped ball core and the pipe, with the rotation of the ball, the air-driven V-type ball valve can use the change of the middle opening area to adjust the flow, and can cut off the impurities in the fluid and close it. It is suitable for the control of pulp, mortar and viscous fluid.

Pneumatic flange V-type ball valve - pneumatic clamp type V-type ball valve

Application of pneumatic V-type regulating ball valve:
 
Pneumatic V-type ball valve has good cutting performance and adjustment performance, which is widely used to control pulp, sewage, suspended medium containing fiber and solid particles, high temperature steam, dry gas and other media. In general, V-type ball valve is single seal ball valve, which is not suitable for two-way use.
 
Features of pneumatic V-type ball valve: Dynamic diagram of working principle of pneumatic V-type ball valve
1. The pneumatic V-type regulating ball valve has nearly equal ratio natural flow characteristics and linear characteristics; it adopts double bearing structure, with small starting torque and excellent sensitivity and induction speed;
2. There is a V-notch on the ball core of pneumatic V-type ball valve. When closing, the V-notch will produce strong shear force with the hard sealing valve seat, which can cut off the medium containing fiber and effectively prevent the ball core from being stuck;
3. The pneumatic V-type regulating ball valve has a V-shaped valve core structure, which can ensure the accuracy and accuracy of control in the whole range even in the condition of small flow or high viscosity medium;
4. Pneumatic V-type ball valve is generally used with valve positioner and other accessories. It is suitable for all kinds of regulating occasions, with large rated flow coefficient, sensitive adjustment performance, wide adjustable range and vertical horizontal installation.  

technical parameter

Nominal diameter DN25~DN300(mm)
Nominal pressure PN1.0、1.6、2.5、6.4MPa
Connection mode Flange type, clamp type
Driving form Compressed air 4-7 bar, It can be equipped with manual device
temperature range
Soft seal: - 30 ~ 180 ℃; hard seal: - 40 ~ 450 ℃
Valve core structure V-shaped notched ball core
sealing material Enhanced polytetrafluoroethylene para polyphenylene metal seal
body material Carbon steel WCB, stainless steel 304, 316 、316L
Form of action Single acting (spring return), double acting (air on and air off)
control mode Switch two position cut-off, accurate Adjustable 4-20mA analog signal (both optional Explosion proof)

Function of pneumatic V-type regulating ball valve:
According to the sealing performance, pneumatic V-type ball valve is divided into soft seal and hard seal. Soft seal is generally used in low-pressure and normal temperature places, while hard seal can be used in normal temperature, high-temperature and high-pressure pipeline. According to the control mode, it can be divided into adjustment type and switch cut-off type. The switch type can be divided into single action type and double action type according to the action form. The unique advantage of single acting actuator is that in case of air loss or pipeline failure, the pneumatic V-type ball valve will automatically reset to the valve closed or opened state according to the requirements of the control system.

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.