Soft sealing flange butterfly valve
Soft sealing flange butterfly valve
Nominal diameter: DN50 ~ 1000mm
Nominal pressure: PN0.6 ~ 1.6MPa
Temperature: ≤120 ℃
Body Material: kinds of rubber, PTFE
Drive forms: manual, worm gear, gas transmission, electrical transmission
Medium: air, water, water, steam, gas, oil, etc.
Flange connection: GB / T9113.1-2000; GB / T9115.1-2000 ; JB78
Product description
Soft sealing butterfly valve for temperature ≤ 120 ℃, the nominal pressure ≤ 1.6MPa food, medicine, chemicals, petroleum, electricity, textile, paper and other water supply and drainage, gas pipeline for regulating the role of flow and interception of the media. Its main features are:
1, a new design, reasonable, unique structure, light weight, quick opening and closing.
2, torque is small, easy to operate, labor-saving smart.
3, can be installed in any location, easy maintenance.
4, seals can be replaced, sealing performance and reliable two-way seal to achieve zero leakage.
5, sealing material aging resistance, corrosion resistance, long life and other characteristics.
Using standard
design standards: GB / T2238-1989
flange connection size: GB / T9113.1-2000; GB / T9115.1-2000; JB78
structure length: GB / T12221-1989
pressure test: GB / T13927-1992; JB / T9092-1999
Main technical parameters
Nominal diameter | DN (mm) | 50 ~ 2000 | ||
Nominal pressure | PN (MPa) | 0.6 | 1.0 | 1.6 |
test pressure | Strength test | 0.9 | 1.5 | 2.4 |
Seal test | 0.66 | 1.1 | 1.76 | |
Gas seal test | 0.6 | 0.6 | 0.6 | |
Suitable media | Air, water, sewage, steam, gas, oil and so on | |||
Drive form | Manual, worm gear drive, gas drive, electric drive | |||
The main parts of the material
Part Name | material |
Body | All kinds of rubber, PTFE |
Butterfly plate | Gray cast iron, ductile cast steel, cast steel, stainless steel and special materials |
Sealing ring | Ductile cast steel, cast steel, alloy steel, stainless steel |
Valve stem | 2Cr13, stainless steel |
filler | O-ring, flexible graphite |
Butterfly valve sealing material selection and application temperature
Material variety | Neoprene | Nitrile rubber | Ethylene propylene rubber | Teflon | Silicone Rubber | fluororubber |
Code | X or or J | XA or or JA | XB or or JB | XC, JC or or F | XD or or JD | XE or or JE |
Resistance to the highest temperature | 82 ° C | 93 ° C | 150 ° C | 232 ° C | 250 ° C | 204 ° C |
Resistance to the lowest temperature | -40 ℃ | -40 ℃ | -40 ℃ | -268 ° C | -70 ° C | -23 ° C |
Suitable for working temperature | ≤65 ℃ | ≤80 ℃ | ≤120 ℃ | ≤200 ℃ | ≤200 ℃ | ≤180 ℃ |
The main dimensions and weight (PN1.0 / 1.6MPa)
| DN (mm) | A | B | C | D | D1 | D2 | D3 | D4 | D5 | L | L1 | L2 | nd | a | f | n-d1 | Weight WT (kg) |
| 50 | 83 | 130 | 20 | 52.9 | 125 | 165 | 99 | 57.15 | 65 | 108 | 111 | 32 | 4-19 | 90 ° | 3 | 4-7 | 7.6 |
| 65 | 93 | 145 | 20 | 64.5 | 145 | 185 | 118 | 57.15 | 65 | 112 | 115 | 32 | 4-19 | 90 ° | 3 | 4-7 | 9.7 |
| 80 | 100 | 155 | 22 | 78.8 | 160 | 20 | 132 | 69.85 | 65 | 114 | 117 | 32 | 8-19 | 45 ° | 3 | 4-7 | 10.6 |
| 100 | 114 | 170 | 24 | 104 | 180 | 220 | 156 | 69.85 | 90 | 127 | 130 | 32 | 8-19 | 45 ° | 3 | 4-10 | 13.8 |
| 125 | 125 | 190 | 26 | 123.3 | 210 | 250 | 184 | 69.85 | 90 | 140 | 143 | 32 | 8-19 | 45 ° | 3 | 4-10 | 18.2 |
| 150 | 143 | 205 | 26 | 155.6 | 240 | 285 | 211 | 88.9 | 90 | 140 | 143 | 32 | 8-23 | 45 ° | 3 | 4-10 | 21.7 |
| 200 | 170 | 235 | 26 | 202.5 | 295 | 340 | 266 | 88.9 | 125 | 152 | 155 | 45 | 8-23 12-23 | 45 ° / 30 ° | 3 | 4-14 | 31.8 |
| 250 | 198 | 280 | 28 | 250.5 | 350/355 | 395/405 | 319 | 107.95 | 125 | 165 | 168 | 45 | 12-23 12-28 | 30 ° | 3 | 4-14 | 44.7 |
| 300 | 223 | 310 | 28 | 301.5 | 400/410 | 445/460 | 370 | 107.95 | 150 | 178 | 182 | 45 | 12-23 12-28 | 30 ° | 4 | 4-14 | 57.9 |
| 350 | 279 | 340 | 30 | 333.3 | 460/470 | 505/520 | 429 | 158.75 | 150 | 190 | 194 | 45 | 16-23 16-28 | 22.5 ° | 4 | 4-14 | 81.6 |
| 400 | 300 | 375 | 32 | 389.6 | 515/525 | 565/580 | 480 | 158.75 | 175 | 216 | 221 | 51.2 / 72 | 16-28 16-31 | 22.5 ° | 4 | 4-20.6 | 106 |
| 450 | 345 | 430 | 32 | 440.5 | 565/585 | 615/640 | 530 | 158.75 | 175 | 222 | 227 | 51.2 / 72 | 20-28 20-31 | 18 ° | 4 | 4-20.6 | 147 |
| 500 | 355 | 500 | 34 | 491.6 | 620/650 | 670/715 | 582 | 215.9 | 210 | 229 | 234 | 52.75 / 77.5 | 20-26 20-34 | 18 ° | 4 | 4-20.6 | 165 |
| 600 | 410 | 560 | 36 | 592.5 | 725/770 | 780/840 | 682 | 254 | 210 | 267 | 272 | 70.2 / 82 | 20-31 20-37 | 18 ° | 5 | 4-22 | 235 |
| 700 | 478 | 620 | 40 | 695 | 840 | 895/910 | 794 | 254 | 300 | 292 | 299 | 66/82 | 24-31 24-37 | 15 ° | 5 | 8-18 | 338 |
| 800 | 529 | 620 | 44 | 794.7 | 950 | 1015/1025 | 901 | 254 | 300 | 318 | 325 | 66/82 | 24-34 24-40 | 15 ° | 5 | 8-18 | 475 |
| 900 | 584 | 665 | 46 | 864.7 | 1050 | 1115/1125 | 1001 | 254 | 350 | 330 | 338 | 118 | 28-34 28-40 | 12.9 ° | 5 | 8-22 | 595 |
| 1000 | 657 | 735 | 50 | 965 | 1160/1170 | 1230/1255 | 1112 | 254 | 350 | 410 | 417 | 141 | 28-37 28-43 | 12.9 ° | 5 | 8-22 | 794 |
- Name
- Phone
- Corporate name
- Address
- Leaving Message*
| Add：No. 3106, Chengliu Middle Road, Jiading District, Shanghai City Add：No. 3106, Chengliu Middle Road, Jiading District, Shanghai City | 
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