Soft Seal Electric Wafer Butterfly Valve
Basic Info
- Electric wafer butterfly valve can be controlled remotely. With electric actuators, butterfly valves can be controlled using electronic signals.
- Electric wafer butterfly valves are available in switch type and regulating type. That is to say, the butterfly valve can be controlled by opening and closing only, or by adjusting the flow rate.
- Wafer butterfly valve: Among all valves, the structure length is the shortest, the space is the smallest, and the cost is meager.
- Soft backseat are usually made of elastic materials and embedded in the grooves reserved in the valve body. It ensures bubble sealing and is ideal for applications that require zero leakage.
- Soft replaceable seat of electric wafer butterfly valve has high elasticity and strong sealing. And can be replaced to achieve cost savings.
- CF8 (304 Stainless Steel) disc has corrosion resistance to oxidation, rust, and most mild corrosive media.
Paraments of Electric Wafer Butterfly Valve
| Parts | Ductile Iron type | WCB type | Stainless Steel Type | Duplex Stainless Steel Type |
|---|---|---|---|---|
| Body | Cast Iron(GG25) Ductile Iron(GGG40/50) |
A216 A217 A105(forged) |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M |
2205 2507 1.4529 |
| Disc | Ductile Iron with Ni coated Ductile Iron with nylon coated Ductile Iron with PTFE/EPDM lined Stainless Steel Duplex Stainless Steel Bronze |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M 2205 2507 1.4529 |
2205 2507 1.4529 |
|
| Seat | NBR, EPDM, PTFE, Viton, Hypalon, Silicon, PFA | |||
| Stem | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel | Duplex Stainless Steel, Monel | ||
| Actuator | Hand Lever, Worm Gear, Electric, Pneumatic | |||
Electric Wafer Butterfly Valve Standards
| ITEM | Standard |
| Design | EN593 | API609 |
| Face to Face | EN558 | ISO5752 | API608 | BS5155-4 |
| Top Flange | ISO5211 |
| Flange Drilling | PN6 | PN10 | PN16 | ASME B16.5 CL150 | JIS 10K |
| Pressure Rating | PN6 | PN10 | PN16 | PN25 | CL150 | JIS 10K |
| Tightness Test | ISO5208 | API598 | EN12266-1 |
Paraments of Wafer Butterfly Valve
| 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 |
| 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
Certificates of Zfa Valve
WRAS
CE
ISO 9001
EAC Russia
