Suzhou Alpine Flow Control Co., Ltd
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EN593 Two Side Sealing Double Flange Double Eccentric Butterfly Valve Ductile Iron
AFC's Double Flange Double Eccentric Butterfly Valve, FBGD is a double eccentric fl ange butterfl y valve, with soft seal on the body, it has the lowest operational torque, much less wearing, the dovetail seal design has been proven over half century service with reliability.
The double eccentric design provides less contact area of seal with disc, and less stress at the open position of the disc. The disc design with arch shape and thru disc can provide better fl ow capacity, stronger and less weight.
Online Repairing Feature:
Online repairing by EPOXY. The special technology can help user to repair the Double Eccentric Flange Butterfly Valve without taking the valve out of the pipeline. The user only needs to repair it from the exterior of the butterfly valve without going into the pipeline. Please consult the factory and we will show you how to repair the BV when the rubber seal is damaged.
Operating Torque
| Bare Head Torque (Nm) | ||
| DN | PN10 | PN16 |
| 100 | 70 | 85 |
| 150 | 118 | 128 |
| 200 | 190 | 210 |
| 250 | 228 | 250 |
| 300 | 345 | 372 |
| 350 | 600 | 760 |
| 400 | 960 | 1160 |
| 450 | 972 | 1280 |
| 500 | 1040 | 1680 |
| 600 | 1800 | 2500 |
| 700 | 1944 | 2592 |
| 800 | 3240 | 4428 |
| 900 | 4100 | 5300 |
| 1000 | 5850 | 7245 |
| 1200 | 8280 | 13320 |
Dimension:
Material
DN100-DN500
DN600-DN1200