Pneumatic four-way 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

Pneumatic four-way ball valve

  • [Valve model]: Q646F，Q646H
  • [Diameter specification]: DN50～DN500
  • [Structure]: Four way cast valve body
  • [Valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [Nominal pressure]: PN10、PN16、PN25、PN40
  • [Applicable temperature]: -40℃～450℃
  • [Application Scope]: Liquid, gas, oil, slurry and medium containing solid particles
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  • Pneumatic four-way ball valve

Product features

The pneumatic four-way ball valve can switch the flow direction of two media at the same time, replacing the complex operation of the previous four valves, eliminating the problems of large space, high cost, and cumbersome operation, and realizing the effect of one valve for multiple purposes. The pneumatic four-way ball valve is an X-shaped vertical channel, which is characterized by that the two channels of the sphere are arranged in an X-shaped manner, and the diameters of the four channels are uniformly distributed on the equatorial circumferential section of the sphere. When the sphere rotates 90 clockwise, the two opposite channels can realize two to two intercommunication.

Features of pneumatic four-way ball valve:
 
The pneumatic four-way ball valve can realize the switching of positive and negative water supply. The water supply mode can be switched once every 90 degrees of rotation, which is easy to operate. It is called two-way water supply rotary valve in the power plant system, and also called air reversing switch valve in the petrochemical system. It is applicable to the circulation system of liquid, gas, dust, slurry and solid particle media, such as the positive and negative circulation water supply system of the unit cooler in the power plant.
Reversing principle of pneumatic four-way ball valve:
 
 
The "LL '' four-way ball valve only needs to operate the wrench or actuator to rotate the ball by 90 °, and switch the flow direction of the two mediums at the same time, which is convenient and fast, realizing the effect of one valve for multiple purposes.

technical parameter

Nominal diameter DN15～DN200(mm)
Nominal pressure PN1.6、2.5、4.0、6.4MPa
Connection type Flange type
structural style Four way casting valve
Drive mode Air source control (4-7bar compressed air)
Service temperature -40℃～450℃
Control form Switch type (switch two position control), regulating type (4~20mA signal)
body material carbon steel WCB, stainless steel 304, 316, 316L
sealing material PTFE, PPL, metal seal (hard alloy)
Optional functions of pneumatic four-way ball valve:
Drive 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 action (spring return): air close type (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 action (ventilation switch): air close type (B) - valve remains unchanged in case of loss of air (FL); Air to open type (K) -- valve remains unchanged in case of loss of air (FL)
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc

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.