WESDUN butterfly valve is the exclusive research and development, compact structure, 90°rotary switch easy, reliable sealing, long service life.
▪ The rubber amount of the valve seat is uniform, the potential impact of expansion is small, it is easy to control the torque value within the appropriate range, and the pin-less valve stem connection is simple in structure and convenient in maintenance and disassembly.
▪ The butterfly plate has the function of automatic alignment, which realizes the small Angle of the butterfly plate and the valve seat. The valve seat has the characteristics of not falling off, good tensile performance, leakage prevention and so on.
This valve is designed and manufactured for apply in water, waste water, and sewage. Main usage is for isolation and regulate purposes.It is widely used in water supply, paper making, chemical industry, food hygiene and other systems.
Application：
▪ Water and neutral liquid applications
▪ Main transmission pipelines
▪ Irrigation system
▪ Fire fighting
Standards:
▪ Hydraulic tests according to EN-12266-1, Class A
▪ Designed to EN-593
▪ Flanges to EN-1092-2, BS4504
▪The sealing surface of the seat and the backrest are formed in one piece, thus reducing the deformation of the seat.
▪ Potable water approved epoxy coating, fusion bonded according DIN3476-1, EN14901
▪The design is novel , reasonable, unique structure, light weight,
fast opening and closing.
▪ Small operating torque, easy operation, labor saving.
▪ 100% testing before packing and delivery.
▪ The seals are replaceable and achieve a bi-directional seal with zero leakage.
▪ Can be installed in any position, convenient maintenance.
▪ Operation: Handle, turbine, electric, pneumatic.
| Main Dimensions | |||||||||||||||||
| A | B | L | ISO5211 TOP FLANGE | PN10 | PN16 | ||||||||||||
| Flange No. | OE | OF | n1-0d1 | 0 | h | 0D | OD1 | n-0d | N-M | 0D | OD1 | n-Dd | N-M | ||||
| 50 | 130 | 83 | 108 | F05 | 65 | 50 | 4-8 | 12.60 | 32 | 165 | 125 | 4-18 | 4-M16 | 165 | 125 | 4-18 | 4-M16 |
| 65 | 140 | 93 | 112 | F05 | 65 | 50 | 4-8 | 12.60 | 32 | 185 | 145 | 8-18 | 8-M16 | 185 | 145 | 8-18 | 8-M16 |
| 80 | 149 | 100 | 114 | F05 | 65 | 50 | 4-8 | 12.60 | 32 | 200 | 160 | 8-18 | 8-M16 | 200 | 160 | 8-18 | 8-M16 |
| 100 | 156 | 110 | 127 | F07 | 90 | 70 | 4-10 | 15.77 | 32 | 220 | 180 | 8-18 | 8-M16 | 220 | 180 | 8-18 | 8-M16 |
| 125 | 177 | 125 | 140 | F07 | 90 | 70 | 4-10 | 18.92 | 32 | 250 | 210 | 8-18 | 8-M16 | 250 | 210 | 8-18 | 8-M16 |
| 150 | 200 | 143 | 140 | F07 | 90 | 70 | 4-10 | 18.92 | 32 | 285 | 240 | 8-22 | 8-M20 | 285 | 240 | 8-22 | 8-M20 |
| 200 | 225 | 170 | 152 | F10 | 125 | 102 | 4-12 | 22.10 | 45 | 340 | 295 | 8-22 | 8-M20 | 340 | 295 | 12-22 | 12-M20 |
| 250 | 280 | 203 | 165 | F10 | 125 | 102 | 4-12 | 28.50 | 45 | 395 | 350 | 12-22 | 12-M20 | 405 | 355 | 12-26 | 12-M24 |
| 300 | 309 | 230 | 178 | F10 | 125 | 102 | 4-12 | 31.70 | 45 | 445 | 400 | 12-22 | 12-M20 | 460 | 410 | 12-26 | 12-M24 |
| 350 | 325 | 260 | 190 | F10 | 125 | 102 | 4-12 | 31.70 | 45 | 505 | 460 | 16-22 | 16-M20 | 520 | 470 | 16-26 | 16-M24 |
| 400 | 371 | 290 | 216 | F14 | 175 | 140 | 4-18 | 33.15 | 52 | 565 | 515 | 16-26 | 16-M24 | 580 | 525 | 16-30 | 16-M28 |
| 450 | 392 | 330 | 222 | F14 | 175 | 140 | 4-18 | 38.00 | 52 | 615 | 565 | 20-26 | 20-M24 | 640 | 585 | 20-30 | 20-M28 |
| 500 | 431 | 358 | 229 | F14 | 175 | 140 | 4-18 | 41.15 | 64 | 670 | 620 | 20-26 | 20-M24 | 715 | 650 | 20-33 | 20-M30 |
| 600 | 505 | 435 | 267 | F16 | 210 | 165 | 4-22 | 50.65 | 70 | 780 | 725 | 20-30 | 20-M27 | 840 | 770 | 20-36 | 20-M33 |
| 700 | 577 | 455 | 292 | F25 | 300 | 254 | 8-18 | 63.35 | 95 | 895 | 840 | 24-30 | 24-M27 | 910 | 840 | 24-36 | 24-M33 |
| 800 | 630 | 515 | 318 | F25 | 300 | 254 | 8-18 | 63.35 | 95 | 1015 | 950 | 24-33 | 24-M30 | 1025 | 950 | 24-39 | 24-M36 |
| 900 | 693 | 563 | 330 | F25 | 300 | 254 | 8-18 | 75.00 | 130 | 1115 | 1050 | 28-33 | 28-M30 | 1125 | 1050 | 28-39 | 28-M36 |
| 1000 | 745 | 635 | 410 | F25 | 300 | 254 | 8-18 | 85.00 | 130 | 1230 | 1160 | 28-36 | 28-M33 | 1255 | 1170 | 28-42 | 28-M39 |
| 1200 | 925 | 775 | 470 | F30 | 350 | 298 | 8-22 | 105.00 | 150 | 1455 | 1380 | 32-39 | 32-M36 | 1485 | 1390 | 32-48 | 32-M45 |
| 1400 | 1040 | 919 | 530 | F35 | 415 | 356 | 8-32 | 120.00 | 150 | 1675 | 1590 | 36-42 | 36-M39 | 1685 | 1590 | 36-48 | 36-M45 |
| 1600 | 1150 | 1045 | 600 | F35 | 415 | 356 | 8-32 | 140.00 | 200 | 1915 | 1820 | 40-48 | 40-M45 | 1930 | 1820 | 40-56 | 40-M52 |
| 1800 | 1200 | 1156 | 670 | F40 | 475 | 406 | 8-40 | 160.00 | 280 | 2115 | 2020 | 44-48 | 44-M45 | 2130 | 2020 | 44-56 | 44-M52 |
| 2000 | 1363 | 1350 | 760 | F40 | 475 | 406 | 8-40 | 160.00 | 280 | 2325 | 2230 | 48-48 | 48-M45 | 2345 | 2230 | 48-62 | 48-M56 |
| 2200 | 1550 | 1530 | 800 | F48 | 560 | 483 | 12-40 | 180.00 | 300 | 2550 | 2440 | 52-56 | 52-M52 | 2555 | 2440 | 52-62 | 52-M56 |
| 2400 | 1650 | 1610 | 850 | F48 | 560 | 483 | 12-40 | 200.00 | 300 | 2760 | 2650 | 56-56 | 56-M52 | 2765 | 2650 | 56-62 | 56-M56 |
