Electric loose-flange butterfly valve
Electric loose-flange butterfly valve
Nominal diameter: DN50 ~ 2000mm
Nominal pressure: PN0.6~2.5MPa
Applicable temperature: nitrile rubber: -40℃ ~ 90℃ fluorinated rubber: -20℃ ~ 200℃
Applicable medium: water, air, natural gas, oil and weakly corrosive fluid
Driving mode: worm gear drive, electric, pneumatic, hydraulic
Body material: WCB, qt450-10, HT200, HT250
1. Product overview
Electric loose-flange butterfly valve compact structure, easy 90° rotary switch, reliable sealing, long service life, is widely used in water plants, power plants, steel mills, paper, chemical, food and other systems in the water supply and drainage, as the regulation and cut-off use.
2. Product features
1, the valve adopts double eccentric structure, with more closed more tight sealing function, sealing performance is reliable.
2. The sealing pair is made of stainless steel and nitrile oil-resistant rubber for long service life.
3, rubber seal ring can be located on the valve body, can also be located on the butterfly plate, can be applied to different characteristics of the media, for the user to choose.
4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.
5, the overall paint, can effectively prevent corrosion and as long as the replacement of sealing valve seat sealing material, can be used in different media.
6, the valve has a two-way sealing function, installation is not controlled by the flow of the medium, nor by the impact of the space position, can be installed in any direction.
7, the unique structure of the valve, flexible operation, labor saving, convenient.
3.Main technical parameters
DN（mm) | 50～2000 | 50～1600 | |
PN（MPa) | 0.6 | 1.0 | 1.6 |
Sealing test(MPa) | 0.66 | 1.1 | 1.76 |
Strength test (MPa) | 0.9 | 1.5 | 2.4 |
Suitable temperature | Nitrile rubber: -40℃ ~ 90℃ fluorinated rubber: -20℃ ~ 200℃ | ||
Applicable medium | Water, air, natural gas, oil and weakly corrosive fluids | ||
Leakage rate | Conform to GB / T13927-92 | ||
Driving mode | Worm gear drive, electric, pneumatic, hydraulic | ||
4.Materials for main parts and components
Part name | Material Science |
Body | WCB,QT450-10,HT200,HT250 |
Butterfly plate | WCB,QT450-10、HT200、HT250 |
Valve shaft | 2Cr13 |
Seal ring FBEX(D942X)-6/10/16 electric soft seal butterfly valve | Nitrile oil resistant rubber |
Packing | Flexible graphite |
5. Implementation standards
Manufacturing standard | GB/T 122387-89 |
Flange standard | GB9113-2000、GB17241.6-1998 |
Structural length standard | GB12221-89 |
Inspection standard | GB/T 13927-92 |
6. Main dimensions
DN | Main dimensions | Flange dimensions and bolt dimensions | |||||||||||||||
L | H | H1 | A | B | 0.6MPa | 1.0MPa | 1.6MPa | ||||||||||
D | D1 | D2 | n-d | D | D1 | D2 | n-d | D | D1 | D2 | n-d | ||||||
50 | 108 | 82.5 | 443 | 125 | 125 | 140 | 110 | 88 | 4-14 | 165 | 125 | 99 | 4-18 | 165 | 125 | 99 | 4-18 |
65 | 112 | 92.5 | 463 | 125 | 125 | 160 | 130 | 108 | 4-14 | 185 | 145 | 118 | 4-18 | 185 | 145 | 118 | 4-18 |
80 | 114 | 100 | 483 | 125 | 125 | 190 | 150 | 124 | 4-18 | 200 | 160 | 132 | 8-18 | 200 | 160 | 132 | 8-18 |
100 | 127 | 110 | 498 | 125 | 125 | 210 | 170 | 144 | 4-18 | 220 | 180 | 156 | 8-18 | 220 | 180 | 156 | 8-18 |
125 | 140 | 125 | 682 | 325 | 245 | 240 | 200 | 174 | 8-18 | 250 | 210 | 184 | 8-18 | 250 | 210 | 184 | 8-18 |
150 | 140 | 142.5 | 736 | 325 | 245 | 265 | 225 | 199 | 8-18 | 285 | 240 | 211 | 8-22 | 285 | 240 | 211 | 8-22 |
200 | 152 | 170 | 800 | 325 | 245 | 320 | 280 | 254 | 8-18 | 340 | 295 | 266 | 8-22 | 340 | 295 | 266 | 12-22 |
250 | 165 | 197.5 | 895 | 363 | 313 | 375 | 335 | 309 | 12-18 | 395 | 350 | 319 | 12-22 | 405 | 355 | 319 | 12-26 |
300 | 178 | 222.5 | 956 | 363 | 313 | 440 | 395 | 363 | 12-22 | 445 | 400 | 370 | 12-22 | 460 | 410 | 370 | 12-26 |
350 | 190 | 252.5 | 1029 | 363 | 313 | 490 | 445 | 413 | 12-22 | 505 | 460 | 429 | 16-22 | 520 | 470 | 429 | 16-26 |
400 | 216 | 282.5 | 1103 | 363 | 313 | 540 | 495 | 463 | 16-22 | 565 | 515 | 480 | 16-26 | 580 | 525 | 480 | 16-30 |
450 | 222 | 307.5 | 1186 | 465 | 439 | 595 | 550 | 518 | 16-22 | 615 | 565 | 530 | 20-26 | 640 | 585 | 548 | 20-30 |
500 | 229 | 335 | 1280 | 546 | 481 | 645 | 600 | 568 | 20-22 | 670 | 620 | 582 | 20-26 | 715 | 650 | 609 | 20-33 |
600 | 267 | 390 | 1321 | 546 | 556 | 755 | 705 | 667 | 20-26 | 780 | 725 | 682 | 20-30 | 840 | 770 | 720 | 20-36 |
700 | 292 | 447.5 | 1431 | 546 | 556 | 860 | 810 | 772 | 24-26 | 895 | 840 | 794 | 24-30 | 910 | 840 | 794 | 24-36 |
800 | 318 | 507.5 | 1542 | 546 | 556 | 975 | 920 | 878 | 24-30 | 1015 | 950 | 901 | 24-33 | 1025 | 950 | 901 | 24-39 |
900 | 330 | 557.5 | 1800 | 617 | 706 | 1075 | 1020 | 978 | 24-30 | 1115 | 1050 | 1001 | 28-33 | 1125 | 1050 | 1001 | 28-39 |
1000 | 410 | 615 | 2363 | 632 | 706 | 1175 | 1120 | 1078 | 28-3 | 1230 | 1160 | 1112 | 28-36 | 1255 | 1170 | 1112 | 28-42 |
1200 | 470 | 727.5 | 2583 | 632 | 706 | 1405 | 1340 | 1295 | 32-33 | 1455 | 1380 | 1328 | 32-39 | 1485 | 1390 | 1328 | 32-48 |
1400 | 530 | 837.5 | 2710 | 790 | 1338 | 1630 | 1560 | 1510 | 36-36 | 1675 | 1590 | 1530 | 36-42 | 1685 | 1590 | 1530 | 36-48 |
1600 | 600 | 957.5 | 2845 | 868 | 1476 | 1830 | 1760 | 1710 | 40-36 | 1915 | 1820 | 1750 | 40-48 | 1930 | 1820 | 1750 | 40-56 |
1800 | 670 | 1057.5 | 2060 | 868 | 1476 | 2045 | 1970 | 1918 | 44-39 | 2115 | 2020 | 1950 | 44-48 | 2130 | 2020 | 1950 | 44-56 |
2000 | 760 | 1162.5 | 3350 | 965 | 1600 | 2265 | 2180 | 2125 | 48-42 | 2325 | 2230 | 2150 | 48-48 | 2345 | 2230 | 2150 | 48-62 |
| ADD: ROOM 202 BUILDING 16 YINGYUAN 13 LANE, JIADING DISTRICT, SHANGHAI 201800, CHINA. Tel: 0086-21-51738965 Fax: 0086-21-51738965 Cell: 0086-15021213021 Skype: peter.zhou2008 Email: sales@gaotaivalve.com ICP11042978-1 Technical support: Fengsheng Technology ADD: ROOM 202 BUILDING 16 YINGYUAN 13 LANE, JIADING DISTRICT, SHANGHAI 201800, CHINA. Tel: 0086-21-51738965 Fax: 0086-21-51738965 Cell: 0086-15021213021 Skype: peter.zhou2008 Email: sales@gaotaivalve.com ICP11042978-1 Technical support: Fengsheng Technology | 
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