D671 Pneumatic Butterfly Valve

The Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard seal pneumatic butterfly valve, soft seal pneumatic butterfly valve, carbon steel pneumatic butterfly valve.

  • Price Term: FOB/CIF/EXW/DAP
  • Package: Exported Wooden case or according to customer request
  • Delivery Time:  7 to 10 working days
  • Transports: By sea, by air, by high express
  • Shipment Port: Shanghai Port
  • Origin of Place: Jiangsu
  • Warranty: 12 Months

The pneumatic butterfly valve is composed of a pneumatic actuator and a butterfly valve.he pneumatic butterfly valve is a pneumatic valve that uses a round butterfly plate that rotates with the stem to do the opening and closing to enable the action, mainly as a cut-off valve,can also be designed to have the function of regulating or breaking the valve and regulating, the butterfly valve is increasingly used in low pressure large and medium diameter pipelines.

1、Small and light, easy to disassemble and repair, and can be installed in any position.
2、Simple and compact structure, small operating torque, 90°swing opening quickly.
3、Flow characteristics tend to be straight, with good adjustment performance.
4、The connection between the butterfly plate and the valve stem adopts a pinless structure to overcome possible internal leakage points.
5、The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and prolongs the service life of the valve, with pressure opening and closing more than 50,000 times still maintaining zero leakage.
6、The seal can be replaced and the seal is reliable to reach a two-way seal.
7、The butterfly plate can be sprayed according to the user’s requirements, such as nylon or PTFE type.
8、The valve can be designed as a flange connection and butt-clamp connection.
9、The driving mode can be manual, electric, or pneumatic.

Ordering Code Pneumatic Butterfly Valve

Ordering Code Pneumatic Butterfly Valve

1. The pneumatic butterfly valve is a pneumatic valve that uses a round butterfly plate that rotates with the valve cutter to do the opening and closing to realize the enabling action. It is mainly used as a cut-off valve, but can also be designed to have the function of regulating or section valve and regulating.

2. The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be opened and closed quickly by rotating only 90°, which is simple to operate, while this electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the single resistance when the medium flows through the valve body, so the pressure drop generated through the valve is very small, so it has good flow control characteristics.
3. The butterfly valve has two types of seal, the elastic seal, and the metal seal. In a resilient seal valve, the seal can be set into the body or attached to the perimeter of the butterfly plate.

4. If a butterfly valve is required for use as flow control, the main thing is to select the correct size and type of valve. The structural principle of the butterfly valve is particularly suitable for making large diameter valves. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but are also used in cooling water systems in thermal power stations.




D D1 D2  


A/A1 H/H1 N- Od Pneumatic Actuator
50 108 165 125 102 20 213/160 270/266 4-18 AT075D
65 112 185 145 122 20 213/198 280/308 4-18
80 114 200 180 133 22 213/198 300/325 4-18
100 127 220 180 158 24 250/198 330/345 8-18 AT088D
125 130 250 210 184 26 268/255 368/370 8-18 AT100D
150 140 285 240 212 28 349/255 438/436 8-22 AT125D
200 152 340 295 268 28 418/255 488/465 8-22 AT145D
250 165 395 350 320 30 450/255 540/495 12-22 AT160D
300 178 445 400 370 30 450/280 580/535 12-22 AT160D
350 190 505 460 430 30 518/280 644/567 1&-22 AT190D
400 216 585 515 484 32 518/280 658/580 16-26 AT190D

Wafer butterfly valve

Flange butterfly valve

Get Our Best Quotation

    Scroll to Top