Our Product — Butterfly Valve - Double eccentric flange butterfly valve
● Standards:
- 1Design and manufacture: EN 593/BS 5155.
2. Flange dimensions: EN 1092-2/ASME B16.1.
3. Top flange dimensions: ISO 5211.
4. Face to face dimensions: EN 558/ISO 5752/DIN 3202.
5. Test and inspection: API 598/EN12266.
6.Size up to 120".
● Materials
Part |
Material |
EN Spec. |
Body |
Ductile Iron |
EN-JS 1050 |
Disc |
Ductile Iron |
EN-JS 1050 |
Shaft |
Stainless Steel |
BS970 431 S 29 |
Packing |
Flexble Graphite |
Non-Asbestos |
Seat Ring |
Stainless Steel |
BS970 304 S 15 |
Rubber Seals |
EPDM/NBR |
| DN | mm | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| inch | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| L(Long) | 190 | 210 | 230 | 250 | 270 | 290 | 310 | 330 | 350 | 390 | |
| L(Middle) | 127 | 140 | 152 | 165 | 178 | 190 | 216 | 222 | 229 | 267 | |
| L(Short) | - | - | 89 | 114 | 114 | 127 | 140 | 152 | 152 | 178 | |
| DN | mm | 700 | 800 | 900 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | - |
| inch | 28 | 32 | 36 | 40 | 48 | 56 | 64 | 72 | 80 | - | |
| L(Long) | 430 | 470 | 510 | 550 | 630 | 710 | 790 | 870 | 650 | - | |
| L(Middle) | 292 | 318 | 330 | 410 | 470 | 530 | 600 | 670 | 760 | - | |
| L(Short) | 229 | 241 | 241 | 300 | 350 | 390 | 440 | 190 | 540 | - | |
