Usage
The wafer soft seat butterfly valve is applicable to the high temperature, high pressure and insulated pipelines, with the function to open, close or adjust flow.
Features
1. The wafer soft seat butterfly valve provides compact structure, light weight, and easy operation.
2. With three-eccentric structure and excellence performance, the butterfly valve can achieve zero leakage.
3. The wafer soft seat butterfly valve does not have flanges, which makes the pipelines and jacket installed conveniently and beautifully.
4. It has advantages of resistance to high temperature, high pressure, corrosion and friction, etc.
Method
Worm gear, pneumatic and electric drive
Applicable Standard
Welded dimensions: GBl2224; ANSI B16.25; DIN2559
Face-to-face: GB/T12221-1989; APl609
Pressure test: GB/Tl3927-1992; APl598
Main Technical Parameters
| Nominal diameter | DN(mm) | 50-700 | ||||
| Nominal pressure | PN (MPa) | 0.6 | 1.0 | 1,6 | 2.5 | 4.0 |
| Ps (MPa) Test pressure | Intensity test | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
| Seal test | 0.66 | 1.1 | 1_76 | 2.75 | 4.4 | |
| Air Test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Applicable medium | Water, steam, oil products, corrosive acid, etc. | |||||
| Applicable temperature | Carbon steel: -29-425℃; Stainless steel: 40-600℃ | |||||
Material of Main Parts
| Parts name | Material |
| Body | Cast steel, stainless steel, Cr-Mo steel, special material |
| Disc | Cast steel, alloy steel (Cr plated), stainless steel, Cr-Mo steel, special material |
| Seal ring | Stainless steel, anti-wearing material |
| Stem | 2Crl3, 1Crl3 Stainless steel, Cr-Mo steel |
| Packing | Flexible graphite |
| DN | Main connection dimensions | ||||||||||
| Main outline dimensions | 1.0MPa | 1.6MPa | 2.5MPa | ||||||||
| L | H | H0 | A | B | D0 | n-d | D0 | n-d | D0 | n-d | |
| 50 | 43 | 63 | 235 | 270 | 110 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 46 | 70 | 250 | 270 | 110 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 46 | 83 | 275 | 270 | 110 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 52 | 105 | 316 | 270 | 110 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 56 | 115 | 340 | 310 | 110 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 56 | 137 | 376 | 310 | 110 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 60 | 164 | 430 | 353 | 150 | 280 | 8-18 | 295 | 8-22 | 295 | 12-22 |
| 250 | 68 | 206 | 499 | 353 | 150 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 78 | 230 | 570 | 380 | 150 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |




As a China-based wafer soft seat butterfly valve manufacturer, we at Hangda also produce ball valve, check valve, diaphragm valve, gate valve, seamless steel pipe, etc. to suit your various needs. Additionally, we can manufacture valves according to customers' specific requirements. With the advantage of superior quality and reliability, our products are in increasing demand in America, Europe, Asia, to name a few. Our company is located in Wenzhou City which provides us with convenient transportation. This can help you reduce the international transportation cost. Thank you for your attention. If you would like to know more detailed information, please continue browsing our website or call us directly.