Soft sealing butterfly valve is used for connecting medium or adjusting the flow rate in the pipelines,the temperature of medium can be 120 degree celsius,the working pressure can be 1.6 Mpa.It's widely applied in food,medicine,chemical,petroleum,electric power,metallurgy,urban construction,textile,papermaking.,etc industrial sectors.
Main Characteristics.
Main Parts and Materials.
Part Name | Part Material |
Body | Ductile iron,cast steel,alloy steel,stainless steel. |
Disc | Gray cast iron,ductil iron,cast steel,stainless steel and others. |
Seat ring | NBR,EPDM,PTFE and others |
Stem | Cr13,stainless steel |
Packing | Graphite or others. |
PN | DN | L | H | Ho | A | B | D | D1 | D2 | n-d |
0.6 Mpa | 50 | 108 | 82.5 | 338 | 180 | 65 | 140 | 110 | 88 | 4-14 |
65 | 112 | 92.5 | 358 | 180 | 65 | 160 | 130 | 108 | 4-14 | |
80 | 114 | 100 | 413 | 245 | 72 | 190 | 150 | 124 | 4-18 | |
100 | 127 | 110 | 428 | 240 | 72 | 210 | 170 | 144 | 4-18 | |
125 | 140 | 125 | 444 | 240 | 72 | 240 | 200 | 174 | 8-18 | |
150 | 140 | 142.5 | 553 | 350 | 93 | 265 | 225 | 199 | 8-18 | |
200 | 152 | 170 | 678 | 350 | 93 | 320 | 280 | 254 | 8-18 | |
250 | 165 | 197.5 | 742 | 550 | 350 | 375 | 335 | 309 | 12-18 | |
300 | 178 | 222.5 | 803 | 600 | 350 | 440 | 395 | 363 | 12-22 | |
350 | 190 | 252.5 | 866 | 600 | 350 | 490 | 445 | 413 | 12-22 | |
400 | 216 | 282.5 | 940 | 600 | 350 | 540 | 495 | 463 | 16-22 | |
450 | 222 | 307.5 | 995 | 750 | 380 | 595 | 550 | 518 | 16-22 | |
500 | 229 | 335 | 1058 | 750 | 380 | 645 | 600 | 568 | 20-22 | |
600 | 267 | 390 | 1163 | 750 | 380 | 755 | 705 | 667 | 20-26 | |
700 | 292 | 447.5 | 1283 | 750 | 380 | 860 | 810 | 772 | 24-26 | |
800 | 318 | 507.5 | 1398 | 750 | 380 | 975 | 920 | 878 | 24-30 | |
900 | 330 | 557.5 | 1498 | 1250 | 380 | 1075 | 1020 | 978 | 24-30 | |
1000 | 410 | 615 | 1608 | 1500 | 580 | 1175 | 1120 | 1078 | 28-30 | |
1200 | 470 | 727.5 | 1876 | 1500 | 580 | 1405 | 1340 | 1295 | 32-33 | |
PN | DN | L | H | Ho | A | B | D | D1 | D2 | n-d |
1.0 Mpa | 50 | 108 | 82.5 | 338 | 180 | 65 | 165 | 125 | 99 | 4-18 |
65 | 112 | 92.5 | 358 | 180 | 65 | 185 | 145 | 118 | 4-18 | |
80 | 114 | 100 | 413 | 245 | 72 | 200 | 160 | 132 | 8-18 | |
100 | 127 | 110 | 428 | 240 | 72 | 210 | 170 | 144 | 4-18 | |
125 | 140 | 125 | 444 | 240 | 72 | 250 | 210 | 184 | 8-18 | |
150 | 140 | 142.5 | 553 | 350 | 93 | 285 | 240 | 211 | 8-22 | |
200 | 152 | 170 | 678 | 350 | 93 | 340 | 295 | 266 | 8-22 | |
250 | 165 | 197.5 | 742 | 550 | 350 | 395 | 350 | 319 | 12-22 | |
300 | 178 | 222.5 | 803 | 600 | 350 | 445 | 400 | 370 | 12-22 | |
350 | 190 | 252.5 | 866 | 600 | 350 | 505 | 460 | 429 | 16-22 | |
400 | 216 | 282.5 | 940 | 600 | 350 | 565 | 515 | 480 | 16-26 | |
450 | 222 | 307.5 | 995 | 750 | 380 | 615 | 565 | 530 | 20-26 | |
500 | 229 | 335 | 1058 | 750 | 380 | 670 | 620 | 582 | 20-26 | |
600 | 267 | 390 | 1163 | 750 | 380 | 780 | 725 | 682 | 20-30 | |
700 | 292 | 447.5 | 1283 | 750 | 380 | 895 | 840 | 794 | 24-30 | |
800 | 318 | 507.5 | 1398 | 750 | 380 | 1015 | 950 | 901 | 24-33 | |
900 | 330 | 557.5 | 1498 | 1250 | 380 | 1115 | 1050 | 1001 | 28-33 | |
1000 | 410 | 615 | 1608 | 1500 | 580 | 1230 | 1160 | 1112 | 28-36 | |
1200 | 470 | 727.5 | 1876 | 1500 | 580 | 1455 | 1380 | 1328 | 32-39 | |
PN | DN | L | H | Ho | A | B | D | D1 | D2 | n-d |
1.6 Mpa | 50 | 108 | 82.5 | 338 | 180 | 65 | 165 | 125 | 99 | 4-18 |
65 | 112 | 92.5 | 358 | 180 | 65 | 185 | 145 | 118 | 4-18 | |
80 | 114 | 100 | 413 | 245 | 72 | 200 | 160 | 132 | 8-18 | |
100 | 127 | 110 | 428 | 240 | 72 | 220 | 180 | 156 | 8-18 | |
125 | 140 | 125 | 444 | 240 | 72 | 250 | 210 | 184 | 8-18 | |
150 | 140 | 142.5 | 553 | 350 | 93 | 285 | 240 | 211 | 8-22 | |
200 | 152 | 170 | 678 | 350 | 93 | 340 | 295 | 266 | 12-22 | |
250 | 165 | 197.5 | 742 | 550 | 350 | 405 | 355 | 319 | 12-26 | |
300 | 178 | 222.5 | 803 | 600 | 350 | 460 | 410 | 370 | 12-26 | |
350 | 190 | 252.5 | 866 | 600 | 350 | 520 | 470 | 429 | 16-26 | |
400 | 216 | 282.5 | 940 | 600 | 350 | 580 | 525 | 480 | 16-30 | |
450 | 222 | 307.5 | 995 | 750 | 380 | 640 | 585 | 548 | 20-30 | |
500 | 229 | 335 | 1058 | 750 | 380 | 715 | 650 | 609 | 20-33 | |
600 | 267 | 390 | 1163 | 750 | 380 | 840 | 770 | 720 | 20-36 | |
700 | 292 | 447.5 | 1283 | 750 | 380 | 910 | 840 | 794 | 24-36 | |
800 | 318 | 507.5 | 1398 | 750 | 380 | 1025 | 950 | 901 | 24-39 | |
900 | 330 | 557.5 | 1498 | 1250 | 380 | 1125 | 1050 | 1001 | 28-39 | |
1000 | 410 | 615 | 1608 | 1500 | 580 | 1255 | 1170 | 1112 | 28-42 | |
1200 | 470 | 727.5 | 1876 | 1500 | 580 | 1485 | 1390 | 1328 | 32-48 |
Main Technical Parameters.
Nominal diameter | DN | 50-1200 | ||
Nominal pressure | PN | 0.6 | 1.0 | 1.6 |
Test pressure | Shell test | 0.9 | 1.5 | 2.4 |
Seal test | 0.66 | 1.1 | 1.76 | |
Medium | Fresh water,sewage,sea water,air,steam,food,drug,various oil,acid,alkali,salt.,etc. |