- Worm Gear PTFE Seat Butterfiy Valve
- Size Range: DN50-DN600
- Pressure: PN10/16/150LB/10K
- Body Materials (mm): Ductile iron
- Features: Worm Gear PTFE Seat Wafer Butterfiy Valve use PTFE seat and stainless steel disc,more corrosion resistant and durable than the rubber seat butterfly valve.Suitable for weak corrosion or certain requirements of clean environment.
Product advantages
1.Bundor Valve patented product, patent number: CN201520267217.9, Side flange meets GB, DIN, GOST, ANSI,BS, JIS and other standards, convenient to connect.
2.Material of valve body and disc are all adopted QT450-10, with level-3 spheroidization rate, over 10％ elongation,450Mpa tensile strength, mechanical performance is fully up to standard. It is not easy to be cracked.
3、The valve body adopts Akzo Epoxy coating,can reaches 250μm
4、SS304 disc,more corrosion resistant.
5、Each valve is double pressure test of shell and seal to ensure that it is qualified.
Parameters
| Optional | 1 | 2 | 3 | 4 | 5 |
| Body | Seat | Disc | Stem | Actuator | |
| CI/DI/WCB/CF8/ CF8M/ | NBR/EPDM/SI/PTFE/VITON | DI/CF8/CF8M/ C954 | 420/431/304/316 | DI Handle / worm gear / electric / pneumatic |
| Name | Design and manufacture | Face to face Length | Pressure Test | Top Flange | End Flange |
| Reference standard | GB/T 12238 | GB/T 12221 | GB/T 13927 API 598 | ISO 5211 | PN10/16、5/10K、CL150、Table D/E |
| Name | 1-Body | 2-Seat | 3-Disc | 4-Stem | 5-Worm Gear |
| Material | DI | PTFE | CF8 | 420 | Component |
| DN | in | H1 | H2 | H3 | ∅D | ∅A | ∅B | L | PN10/16 | |
| ∅k | n-∅d | |||||||||
| 50 | 2" | 80 | 129 | 24 | 87.1 | 125 | 105 | 43 | 125 | 4-18 |
| 65 | 2.5" | 82 | 136 | 24 | 100.4 | 145 | 127 | 46 | 145 | 4-18 |
| 80 | 3" | 85 | 153 | 24 | 116 | 160 | 145 | 46 | 160 | 8-18 |
| 100 | 4" | 110 | 167 | 24 | 147.6 | 190.5 | 165 | 52 | 180 | 8-18 |
| 125 | 5" | 122 | 193 | 27 | 172 | 216 | 200 | 56 | 210 | 8-18 |
| 150 | 6" | 141 | 209 | 27 | 202 | 241.3 | 225 | 56 | 240 | 8-22 |
| 200 | 8" | 170 | 251 | 30 | 253.7 | 298.4 | 280 | 60 | 295 | 8-22 |
| 250 | 10" | 213 | 283 | 30 | 308.8 | 362 | 355 | 68 | 350/355 | 12-22/12-26 |
| 300 | 12" | 240 | 315 | 30 | 362 | 431.8 | 390 | 78 | 400/410 | 12-22/12-26 |
| 350 | 14" | 267 | 368 | 45 | 430 | 576.2 | 445 | 78 | 460/470 | 16-22/16-26 |
| 400 | 16" | 309 | 400 | 52 | 482 | 540 | 210 | 102 | 515/525 | 16-26/16-30 |
| 450 | 18" | 328 | 422 | 52 | 545 | 585 | 565 | 114 | 565/585 | 20-26/20-30 |
| 500 | 20" | 361 | 480 | 64 | 609 | 650 | 620 | 127 | 620/650 | 20-26/20-33 |
| 600 | 24" | 459 | 562 | 70 | 720 | 770 | 725 | 154 | 725/770 | 20-30/20-36 |
