Main features of the soft sealing butterfly valve
- Novel and reasonable design, light weight, quick opening and closing.
- Small operating torque, convenient operation, labor-saving and smart.
- It can be installed and maintained in any position.
- The seals can be replaced, and the sealing performance is reliable and can achieve zero leakage of bidirectional sealing.
- The sealing material has the characteristics of aging resistance, corrosion resistance and long service life.
Wafer soft sealing butterfly valve adopts standard
- Design standard: GB/T12238-1989, lS0 10631-1994 or BS EN593-1998
- Flange connection size GB/T17241.6-1998, IS0 7005-2 or BSEN 1092-2002
- Structure length: GB /T1 2221-1989, lS0 5752-1988 or BS EN558-1 pressure
- Test: GB/T13927-1 992, JB/T9092-1999, lS0 5028-1993 or BS 6755-l-1986
Main technical parameters of soft sealing butterfly valve
Nominal diameter | DNmm | 50~2000 | ||
Nominal pressure | PNMPa | 0.6 | 1.0 | 1.6 |
Test pressure PsMPa | Strength test | 0.9 | 1.5 | 2.4 |
Seal test | 0.66 | 1.1 | 1.76 | |
Applicable media | Air, water, sewage, steam , gas, oil, etc. | |||
drive form | Manual, worm gear drive, pneumatic drive, electric drive |
The material of the main parts of the soft sealing butterfly valve
Part Name | Material |
valve body | Ductile iron, cast steel, alloy steel, stainless steel |
Butterfly | Grey cast iron, nodular cast steel, cast steel, stainless steel and special materials |
sealing ring | All kinds of rubber, PTFE |
stem | 2Cr13, stainless steel |
filler | O-ring, flexible graphite |
Wafer soft seal butterfly valve sealing material
Material variety | Neoprene | Nitrile rubber | Ethylene propylene rubber | Teflon | Silicone Rubber | fluororubber |
code | × or 0rJ | XA or orJA | XB or orJB | xC , JC or 0rF | XD or orJD | ×E or orJE |
temperature resistance | 82℃ | 93℃ | 150℃ | 232℃ | 250℃ | 204℃ |
Minimum temperature resistance | -40℃ | -40℃ | -40℃ | -268℃ | -70℃ | -23℃ |
Applicable working temperature | ≤65℃ | ≤80℃ | ≤120℃ | ≤200℃ | ≤200℃ | ≤180℃ |
Main dimensions and weight of wafer soft sealing butterfly valve (PN1.0/1.6MPa)
DN( mm) | A | B | C | D1 | L | n-Φ | K | E | 4-Φ1 | Φ2 | G | Weight WT (kg) |
50 | 140 | 80 | 43 | 125 | 32 | 4-19 | 77 | 57.15 | 4-6.7 | 12.6 | 100 | 3.34 |
65 | 152 | 89 | 46 | 145 | 32 | 4-19 | 77 | 57.15 | 4-.67 | 12.6 | 120 | 3.94 |
80 | 159 | 95 | 45.21 | 160 | 32 | 8-19 | 77 | 57.15 | 4-.67 | 12.6 | 127 | 4.05 |
100 | 178 | 114 | 52.07 | 180 | 32 | 8-19 | 92 | 69.85 | 4-10.3 | 15.77 | 156 | 5.48 |
125 | 190 | 127 | 55.5 | 210 | 32 | 8-19 | 92 | 69.85 | 4-10.3 | 18.92 | 190 | 7.66 |
150 | 203 | 139 | 55.75 | 240 | 32 | 8-23 | 92 | 69.85 | 4-10.3 | 18.92 | 212 | 8.5 |
200 | 238 | 175 | 60.58 | 295 | 45 | 8-23 | 115 | 88.9 | 4-14.3 | 22.1 | 268 | 25 |
250 | 268 | 203 | 68 | 350 | 45 | 12-23 | 115 | 88.9 | 4-14.3 | 28.45 | 325 | 31.4 |
300 | 306 | 242 | 76.9 | 400 | 45 | 12-23 | 140 | 107.95 | 4-14.3 | 31.6 | 403 | 45.9 |
350 | 368 | 267 | 76.17 | 460 | 45 | 16-23 | 140 | 107.95 | 4-14.3 | 31.6 | 436 | 54 |