Soft Seat-Back EPDM Fully Lined Wafer Butterfly Valve
Basic Info
Fully Epdm lined butterfly valve refers to internal surfaces of the valve, including the disc and the body, are completely covered or lined with EPDM rubber.
- Advanced sealing: EPDM material coating can effectively prevent leakage and ensure that fluid will not leak or penetrate into the valve structure, improving the safety and efficiency of the system.
- Corrosion resistance: The outer layer of the valve disc is coated with EPDM material, which can withstand the erosion of various chemicals and corrosive media.
- Replaceable seat: soft back seat EPDM seat is replacable, when it ages or breaks can save costs.
- Wide application: EPDM fully lined butterfly valve is suitable for fluid control and treatment in various fields, such as water treatment, chemical industry, petroleum, pharmaceutical, food, etc.
Paraments
![wafer butterfly valve](https://zfavalves.com/wp-content/uploads/2023/10/普罗曼体.webp)
SIZE | D1 | D2 | D3 | N×φD | α° | F | G | A | B | C | E |
DN50(2″) | 52.6 | 100 | 120.6 | 4×19 | 45 | 52 | 266.7 | 273 | 161 | 43 | 32 |
DN100(4″) | 104 | 156 | 190.5 | 8×19 | 22.5 | 52 | 266.7 | 346 | 200 | 52.1 | 32 |
DN150(6″) | 155.6 | 212 | 241.3 | 8×22. | 422.5 | 52 | 266.7 | 397 | 226 | 55.8 | 32 |
DN200(8″) | 202.4 | 264 | 298.4 | 8×22. | 422.5 | 52 | 359 | 485 | 260 | 60.6 | 45 |
![wafer butterfly valve](https://zfavalves.com/wp-content/uploads/2023/10/普罗曼体大.webp)
SIZE | øK | 4-ød0 | øD | øD1 | øD2 | L | L1 | H1 | H2 | H3 | øD3 | øD4 | n-ød1 | □ | H4 | W1 | W2 | øW3 | |||||||
PN6 | PN10 | PN16 | CL150 | PN6 | PN10 | PN16 | CL150 | ||||||||||||||||||
DN200 | 8〞 | 280 | 295 | 295 | 298.5 | 4-ø19 | 4-ø23 | 4-ø23 | 4-ø22.3 | 246 | 194 | 202 | 60 | 64 | 235 | 86 | 487 | 125 | 102 | 4-012 | □17 | 35 | 75 | 238 | 300 |
DN250 | 10〞 | 335 | 350 | 355 | 362 | 4-ø19 | 4-ø23 | 4-ø28 | 4-ø25.4 | 301.5 | 241 | 250 | 68 | 72 | 270 | 86 | 553 | 125 | 102 | 4-ø12 | □22 | 35 | 75 | 238 | 300 |
DN300 | 12〞 | 395 | 400 | 410 | 431.8 | 4-ø23 | 4-ø23 | 4-ø28 | 4-ø25.4 | 352 | 290 | 301 | 78 | 83 | 310 | 118 | 658 | 25 | 102 | 4-ø12 | □22 | 35 | 81 | 227 | 300 |
DN350 | 14〞 | 445 | 460 | 470 | 476.3 | 4-ø23 | 4-ø23 | 4-ø28 | 4-ø28.6 | 390 | 325.4 | 333.3 | 78 | 83 | 360 | 118 | 733 | 150 | 125 | 4-ø14 | □22 | 35 | 81 | 227 | 300 |
DN400 | 16〞 | 495 | 515 | 525 | 539.8 | 4-ø23 | 4- ø 28 | 4-ø31 | 4-ø28.6 | 452 | 377 | 387 | 102 | 106 | 380 | 150 | 821 | 175 | 140 | 4-018 | □27 | 50 | 115 | 278 | 300 |
DN500 | 20〞 | 600 | 620 | 650 | 635 | 4-ø23 | 4-ø28 | 4-ø34 | 4-ø31.8 | 564 | 480 | 491.6 | 127 | 132 | 470 | 150 | 981 | 175 | 140 | 4-ø18 | □27 | 50 | 115 | 278 | 300 |
DN600 | 24〞 | 705 | 725 | 770 | 749.3 | 4-ø26 | 4-ø31 | 4-ø37 | 4-ø35 | 649.5 | 579.9 | 592.5 | 153 | 159 | 495 | 180 | 1120 | 210 | 165 | 4-022 | □36 | 60 | 144 | 304 | 300 |
Manufacture Process
![manufacture process](https://zfavalves.com/wp-content/uploads/2023/12/manufacture-process-2.webp)
Certificates of Zfa Valve
![certificates wras of zfa valve](https://zfavalves.com/wp-content/uploads/2023/11/certificates-wras.webp)
WRAS
![](https://zfavalves.com/wp-content/uploads/2023/08/CE-728x1030.webp)
CE
![](https://zfavalves.com/wp-content/uploads/2024/02/ISO9001-728x1030.webp)
ISO 9001
![EAC Russia of ZFA valve](https://zfavalves.com/wp-content/uploads/2024/02/EAC-728x1030.webp)
EAC Russia