Tel: 15351513002
Phone: 15351513006
Phone: 0515-89118577
0515-89118677
0515-89118277
Fax: 0515-8911 8000
E-mail：jtongcn 126.com
Website: www.jtongcn.cn
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
The telescopic butterfly valve/pneumatic telescopic butterfly valve/electric telescopic butterfly valve is suitable for regulating flow and intercepting media on water supply and drainage, gas pipelines in food, medicine, chemical, petroleum, power, textile, papermaking and other industries with temperature ≤ 80 ℃ and nominal pressure ≤ 1.6MPa. It has the function of compensating for pipeline thermal expansion and contraction.
Main features of telescopic butterfly valve
1. Novel and reasonable design, unique structure, light weight, easy operation, and rapid opening and closing;
2. In addition to regulating and intercepting the flow, compensating for the thermal expansion and contraction caused by pipeline temperature differences, the telescopic butterfly valve can also provide convenience for valve installation, replacement, and maintenance.
3. The sealing part can be adjusted and replaced, and the sealing performance is reliable.
The telescopic butterfly valve adopts the standard
Design standard: GB/T12238-1989
Flange connection size: GB/T9113.1-2000; GB/T9113.2-2000
GB/T9115.1-2000;GB/T9115.2-2000
Pressure test: GB/T13927-1992; JB/T9092-1999
Main technical parameters of telescopic butterfly valve
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 |
Sealing test | 0.66 | 1.1 | 1.76 | |
Airtight seal test | 0.6 | 0.6 | 0.6 | |
Temperature | ≤80℃ | |||
Applicable Medium | Air, water, steam, gas, oil, etc. | |||
Drive form | Manual, worm gear transmission, pneumatic transmission, electric transmission. | |||
The main component materials of the telescopic butterfly valve
Part name | material |
valve body | Cast iron, cast steel, stainless steel, chromium molybdenum steel, alloy steel |
Disc | Cast steel, alloy steel, stainless steel, chromium molybdenum steel |
sealing ring | Rubber, polytetrafluoroethylene, polyester, stainless steel |
valve stem | 2Cr13, stainless steel, chromium molybdenum steel |
Telescopic tube | Cast iron, cast steel, stainless steel, chromium molybdenum steel |
filler | Flexible graphite |
Dimensions of telescopic butterfly valve
Nominal name | External dimensions (reference value) | Flange size and bolt hole size (standard value) | |||||||||||||||||
H | H1 | Design length | Design minimum length | Design length | A | B | 0.6MPa | 1.0MPa | 1.6MPa | ||||||||||
Millimeter | D | D1 | D2 | n-d | D | D1 | D2 | n-d | D | D1 | D2 | n-d | |||||||
50 | 80 | 309 | 186 | 156 | 171 | 180 | 200 | 140 | 110 | 88 | 4-14 | 165 | 125 | 99 | 4-18 | 165 | 125 | 99 | 4-18 |
65 | 95 | 337 | 190 | 160 | 175 | 180 | 200 | 160 | 130 | 108 | 4-14 | 185 | 145 | 118 | 4-18 | 185 | 145 | 118 | 4-18 |
80 | 98 | 347 | 198 | 166 | 182 | 180 | 200 | 190 | 150 | 124 | 4-18 | 200 | 160 | 132 | 8-18 | 200 | 160 | 132 | 8-18 |
100 | 114 | 373 | 228 | 188 | 208 | 180 | 200 | 210 | 170 | 144 | 4-18 | 220 | 180 | 156 | 8-18 | 220 | 180 | 156 | 8-18 |
125 | 128 | 405 | 240 | 201 | 220 | 180 | 200 | 240 | 200 | 174 | 8-18 | 250 | 210 | 184 | 8-18 | 250 | 210 | 184 | 8-18 |
150 | 139 | 440 | 246 | 206 | 226 | 270 | 280 | 265 | 225 | 199 | 8-18 | 285 | 240 | 211 | 8-22 | 285 | 240 | 211 | 8-22 |
200 | 174 | 612 | 265 | 219 | 242 | 400 | 425 | 320 | 280 | 254 | 8-18 | 340 | 295 | 266 | 8-22 | 340 | 295 | 266 | 12-22 |
250 | 215 | 693 | 295 | 240 | 267 | 400 | 425 | 375 | 335 | 309 | 12-18 | 395 | 350 | 319 | 12-22 | 405 | 355 | 319 | 12-26 |
300 | 245 | 747 | 308 | 254 | 282 | 450 | 560 | 440 | 395 | 363 | 12-22 | 445 | 400 | 370 | 12-22 | 460 | 410 | 370 | 12-26 |
350 | 270 | 802 | 327 | 272 | 300 | 450 | 560 | 490 | 445 | 413 | 12-22 | 505 | 460 | 429 | 16-22 | 520 | 470 | 429 | 16-26 |
400 | 305 | 991 | 368 | 308 | 338 | 535 | 580 | 540 | 495 | 463 | 16-22 | 565 | 515 | 480 | 16-26 | 580 | 525 | 480 | 16-30 |
450 | 325 | 1037 | 370 | 310 | 340 | 535 | 580 | 595 | 550 | 518 | 16-22 | 615 | 565 | 530 | 20-26 | 640 | 585 | 548 | 20-30 |
500 | 360 | 1127 | 392 | 332 | 362 | 535 | 580 | 645 | 600 | 568 | 20-22 | 670 | 620 | 582 | 20-26 | 715 | 650 | 609 | 20-33 |
600 | 445 | 1377 | 441 | 375 | 408 | 570 | 660 | 755 | 705 | 667 | 20-26 | 780 | 725 | 682 | 20-30 | 840 | 770 | 720 | 20-36 |
700 | 505 | 1496 | 460 | 400 | 430 | 750 | 550 | 860 | 810 | 772 | 24-26 | 895 | 840 | 794 | 24-30 | 910 | 840 | 794 | 24-36 |
800 | 560 | 1584 | 499 | 445 | 475 | 750 | 550 | 975 | 920 | 878 | 24-30 | 1015 | 950 | 901 | 24-33 | 1025 | 950 | 901 | 24-39 |
900 | 630 | 1676 | 520 | 460 | 490 | 750 | 550 | 1075 | 1020 | 978 | 24-30 | 1115 | 1050 | 1001 | 28-33 | 1125 | 1050 | 1001 | 28-39 |
1000 | 680 | 1760 | 600 | 530 | 565 | 900 | 750 | 1175 | 1120 | 1078 | 28-30 | 1230 | 1160 | 1112 | 28-36 | 1255 | 1170 | 1112 | 28-42 |
1200 | 795 | 2018 | 675 | 571 | 623 | 1000 | 925 | 1405 | 1340 | 1295 | 32-33 | 1455 | 1380 | 1328 | 32-39 | 1485 | 1390 | 1328 | 32-48 |
1400 | 900 | 2363 | 760 | 683 | 722 | 1000 | 925 | 1630 | 1560 | 1510 | 36-36 | 1675 | 1590 | 1530 | 36-42 | 1685 | 1590 | 1530 | 36-48 |
1600 | 1100 | 2723 | 860 | 770 | 815 | 1000 | 925 | 1830 | 1760 | 1710 | 40-36 | 1915 | 1820 | 1750 | 40-48 | 1930 | 1820 | 1750 | 40-56 |
1800 | 1124 | 2844 | 930 | 830 | 880 | 1100 | 980 | 2045 | 1970 | 1718 | 44-39 | 2115 | 2020 | 1950 | 44-48 | 2130 | 2020 | 1950 | 44-56 |
2000 | 1292 | 3127 | 1020 | 920 | 970 | 1100 | 980 | 2265 | 2180 | 2125 | 48-42 | 2325 | 2230 | 2150 | 48-48 | 2345 | 2230 | 2150 | 48-62 |
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006
