D671X Pneumatic Wafer Type Center-line Soft Seal Butterfly Valve
1.Easy structure, low costЈreliable sealing ,light weightЎquick open and closing
2.Integral vulcanization, stable rubber, low torque
3. Disc adopts steam-line design, reducing flow resistance coefficient and head loss.
4. Sealing ring is installed in the body.
5. Self-lubricating shaft sleeve.
6. No-toxic electrostatic spraying epoxy resin paintЈblue, thickness is more than 0.15mm
Manufacture Std.: API609, MSS SP-67,MSS SP-68,DIN3354
Face to Face: DIN3202ЎISO5752ЎBS EN558-1ЎAPI609,MSS SP-68
Flange: DIN2501ЎANSI B 16.5ЎANSI B 16.47ЎBS EN1092-2ЎBS4504
ISO 7005-2ЎJIS10K
Test: API598, EN12266.1ЎISO5208
| Sr.no | Part | Material |
| 1 | Body | GGG40 YGGG50 or WCB |
| 2 | Seat | NBR or EPDM |
| 3 | Disc | Ductile Iron +WCB |
| 4 | Stem | 2Cr13 or 304 |
| 5 | Bearing | Composite or Engineering Plastic |
| 6 | Sealing Ring | NBR or EPDM |
| 7 | Worm Gear | Purchasing from Supplier |
| DN | Main Size | Main connection size | |||||||||
| 0.6MPa | 1.0MPa | 1.6MPa | |||||||||
| L | H | Ho | A | B | Do | N-d | Do | N-d | Do | N-d | |
| 50 | 43 | 63 | 315 | 180 | 65 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 46 | 70 | 330 | 180 | 65 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 46 | 83 | 390 | 245 | 72 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 52 | 105 | 431 | 240 | 72 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 56 | 115 | 455 | 240 | 72 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 56 | 137 | 626 | 350 | 93 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 60 | 164 | 720 | 350 | 93 | 280 | 8-18 | 295 | 8-22 | 295 | 12-22 |
| 250 | 68 | 206 | 800 | 550 | 350 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 78 | 230 | 860 | 600 | 350 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
| 350 | 78 | 248 | 883 | 600 | 350 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
| 400 | 102 | 289 | 972 | 600 | 350 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
| 450 | 114 | 320 | 1043 | 750 | 380 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
| 500 | 127 | 343 | 1098 | 750 | 380 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
| 600 | 154 | 413 | 1236 | 750 | 380 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
| 700 | 165 | 478 | 1431 | 750 | 380 | 810 | 24-26 | 840 | 24-30 | 840 | 24-36 |
| 800 | 190 | 525 | 1488 | 750 | 380 | 920 | 24-30 | 950 | 24-33 | 950 | 24-39 |
| 900 | 203 | 620 | 1615 | 1250 | 380 | 1020 | 24-30 | 1050 | 28-33 | 1050 | 28-39 |
| 1000 | 216 | 725 | 1765 | 1500 | 580 | 1120 | 28-30 | 1160 | 28-36 | 1170 | 28-42 |
| 1200 | 254 | 780 | 1976 | 1500 | 580 | 1340 | 32-33 | 1380 | 32-39 | 1390 | 32-48 |
What’s in your mind? Let’s talk.
Need Help With Finding The Right Technical Solution?
Velya Valve is located in oubei , zhejiang the valve Town . The company is committed to the production of HVAC Valves，water system valves，and energy saving management of heating and cooling systems.
