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WCB flanged double eccentric butterfly valve , with Precision casting valve body, Qualified WCB material , Fine appearance and no sand hole, are popular in worldwide market
Nominal size: DN 50 – DN600
Connecting flange: EN 1092 PN 6/10/16 ASME Class 150 AS 4087 PN 16
Sealing surface of flange: EN 1092 Form A /B ASME RF, FF
Operating temperature:- 20 ~ 120 ℃
Working pressure: Max 16 bar/ 150LB
1. Precision casting valve body. Qualified WCB material. Fine appearance, no sand hole.
2. Heavy valve body. Wall thickness meets the requirements of GB26640 to ensure compressive strength.
3. The valve body and inner parts are processed by CNC precision machine with high precision.
4. Different sealing materials can be selected to ensure the sealing surface wear resistance, erosion resistance, corrosion resistance, long service life.
5. Replaceable disc seal ring can be easily replaced.
6. The valve shaft is supported by self-lubricating sleeve bearings, which can reduce the friction produced during valve shaft transmission and reduce torque.
7. Each valve will be inspected for shell and seal pressure before leaving factory.
8. Epoxy coating, beautiful apperance.
-chemical and petrochemical industries
-Water treatment and sewage treatment
-Pneumatic conveying
-Shipbuilding
-Energy engineering
| Name | Design and manufacture | Face to face Length | Pressure Test | End Flange |
| Reference standard | GB/T 12238 | GB/T 12221 | GB/T 13927 | GB/T 9113/ASME B16.5 |
| Name | 8-Body | 4-Seat Seal | 6-Disc | 3-Shaft | 14-Gearbox |
| Material | WCB | EPDM | WCB | 2Cr13 | Component |
| Size | PN10 | PN16 | 150LB | |||||
| DN | NPS (Inch) | L | φk | N-φd | φk | N-φd | φk | N-φd |
| 50 | 2” | 108 | 125 | 4-18 | 125 | 4-18 | 120.7 | 4-19 |
| 65 | 2 1/2” | 112 | 145 | 4-18 | 145 | 4-18 | 139.7 | 4-19 |
| 80 | 3” | 114 | 160 | 8-18 | 160 | 8-18 | 152.4 | 4-19 |
| 100 | 4” | 127 | 180 | 8-18 | 180 | 8-18 | 190.5 | 8-19 |
| 125 | 5” | 140 | 210 | 8-18 | 210 | 8-18 | 215.9 | 8-22.4 |
| 150 | 6” | 140 | 240 | 8-22 | 240 | 8-22 | 241.3 | 8-22.4 |
| 200 | 8” | 152 | 295 | 8-22 | 295 | 12-22 | 298.4 | 8-22.4 |
| 250 | 10” | 165 | 350 | 12-22 | 355 | 12-26 | 361.9 | 12-25.4 |
| 300 | 12” | 178 | 400 | 12-22 | 410 | 12-26 | 431.8 | 12-25.4 |
| 350 | 14” | 190 | 460 | 16-22 | 470 | 16-26 | 476.2 | 12-28.4 |
| 400 | 16” | 216 | 515 | 16-26 | 525 | 16-30 | 539.7 | 16-28.4 |
| 450 | 18” | 222 | 565 | 20-26 | 585 | 20-30 | 577.8 | 16-31.8 |
| 500 | 20” | 229 | 620 | 20-26 | 650 | 20-33 | 635 | 20-31.8 |
| 600 | 24” | 267 | 725 | 20-30 | 770 | 20-36 | 749.3 | 20-35.1 |
Pneumatic Flanged Butterfly Valve