Pneumatic wafer butterfly valve
- Brand: feiqiu
- Standards: API 6D, API 607, ASME B16.34, ANSI B16.5
- Class: 0.6MPa~1.6MPa
- Size: DN50~DN1200
- Material: Ductile iron, cast iron, cast steel
- Medium: OIL,water,
1. Pneumatic wafer butterfly valve body is rubber lined ,disc materials could be Chrome plated ductile iron , rubber lined ductile iron , stainless steel , cooper alloy which are corrosive resisted materials , so the pneumatic wafer butterfly valve is suitable for petroleum chemical ,power, metallurgy, chemical and municipal industries , used for the pipe systems for clean water ,sewage wafer, sea water and corrosive medium , switching on and off or adjusting the flow .
2. Pneumatic wafer butterfly valve is centric butterfly valve , two way seal , which can be assembled in either direction , not limited by the flow direction .
3. Pneumatic wafer butterfly valve is wafer assembly , short face to face length , small volume, light ,saving assembly space.
4. Pneumatic wafer butterfly valve also should be remarked whether need solenoid directional valve, 3 air supply accessories, limit switch, manual operator, positioner .
Materials for Main Parts
| No. | Part | Material |
| 1 | Body | Ductile iron , cast iron ,cast steel,stainless steel |
| 2 | Disc | Ductile iron , cast iron ,cast steel,stainless steel |
| 3 | Seat | NBR,EPDM,VITION,PTFE |
| 4 | Stem | stainless steel |
| 5 | O-Ring | NBR,EPDM,VITION |
Main Connection Dimensions
| DN | PN | Connection dimensions(mm) | |||
| (mm) | (MPa) | L | D1 | D | Z-d |
| 50 |
1.0/1.6
|
150 | 125 | 165 | 4-18 |
| 65 | 170 | 145 | 185 | 4-18 | |
| 80 | 180 | 160 | 200 | 4-18/8-18 | |
| 100 | 190 | 180 | 220 | 8-18 | |
| 125 | 200 | 210 | 250 | 8-18 | |
| 150 | 210 | 240 | 285 | 8-22 | |
| 200 | 230 | 295 | 340 | 8-22/12-22 | |
| 250 | 250 | 350/355 | 390/405 | 12-22/12-25 | |
| 300 | 270 | 400/410 | 440/460 | 12-22/12-25 | |
| 350 | 290 | 460/470 | 500/520 | 16-22/16-25 | |
| 400 | 310 | 515/525 | 565/580 | 16-25/16-30 | |
