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Product Description
Eccentric Soft Sealing Flange Butterfly Valve Manufacture by PINDEE VALVE,which is one of the hot selling product in China.Welcome to inquiry from us.
Eccentric Soft Sealing Flange Butterfly Valve Standard:
Design and Manufacture Conform to EN 593, API609, JIS
Flange dimensions Conform to EN 1092-2 PN10, PN16, JIS5K, JIS10K,ANSI B16.1,DIN2501,BS4504
Face to Face dimensions Conform to EN558 series
Top Flange dimensions Conform to ISO5211
Testing Conform to API598、EN12266-1
Standard Test:
Double eccentric butterfly valve Standard Test :
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Special Test: On request, any other test can be carried out according to special instruction by client.
Eccentric Soft Sealing Flange Butterfly Valve features:
1.Protection of gearbox IP 68-8 (submersion up to 8 m of water) and actuator IP 68 (submersion up to 8 m of water, during 96 hours and 10operations)
With position indicator.
Clockwise Close (CC).
For installation above ground and in non-flooded chambers.
Designed and tested to an endurance level of 2500 cycles minimum, inaccordance with EN 1074-1 and 2.
2.Reduces resilient seal’s wear and tear ensuring detachment from the body seat ring the moment the valve begins to open.
reduces pressure loss in fully open position by the disc
parking in a zone of reduced flow.
lower torque requirement to rotate the disc leads to less
wear and longer life of the gasket and other elements.
The structural feature of the double eccentric butterfly valve is that the shaft center of the valve stem deviates from the center of the butterfly plate and the center of the body. The double eccentric effect enables the butterfly plate to be released from the valve seat immediately after the valve is opened, which greatly eliminates unnecessary excessive extrusion and scratching of the butterfly plate and the valve seat, reduces the opening resistance, reduces wear and improves The life of the valve seat is improved. The scraping is greatly reduced, and at the same time, the double eccentric butterfly valve can also use a metal seat, which improves the application of the butterfly valve in the high temperature field.
Technical Parameter:
| Size | PN10 | PN16 | ||||
| DN | NPT | L | D2 | n-d | D2 | n-d |
| 100 | 4" | 127 | 180 | 8-φ19 | 180 | 8-φ19 |
| 125 | 5" | 140 | 210 | 8-φ19 | 210 | 8-φ19 |
| 150 | 6'' | 140 | 240 | 8-φ22 | 240 | 8-φ22 |
| 200 | 8'' | 152 | 295 | 8-φ22 | 295 | 12-φ22 |
| 250 | 10'' | 165 | 350 | 12-φ22 | 355 | 12-φ28 |
| 300 | 12'' | 178 | 400 | 12-φ22 | 410 | 12-φ28 |
| 350 | 14'' | 190 | 460 | 16-φ22 | 470 | 16-φ28 |
| 400 | 16'' | 216 | 515 | 16-φ28 | 525 | 16-φ31 |
| 450 | 18'' | 222 | 565 | 20-φ28 | 585 | 20-φ31 |
| 500 | 20'' | 229 | 620 | 20-φ28 | 650 | 20-φ24 |
| 600 | 24'' | 267 | 725 | 20-φ31 | 770 | 20-φ37 |
| 700 | 28'' | 292 | 840 | 24-φ31 | 840 | 24-φ37 |
| 800 | 32'' | 318 | 950 | 24-φ34 | 950 | 24-φ40 |
| 900 | 36'' | 330 | 1050 | 28-φ34 | 1050 | 28-φ40 |
| 1000 | 40'' | 410 | 1160 | 28-φ37 | 1170 | 28-φ43 |
| 1200 | 48'' | 470 | 1380 | 32-φ40 | 1390 | 32-φ49 |
| 1400 | 56'' | 530 | 1590 | 36-φ43 | 1590 | 36-φ49 |
| 1600 | 64'' | 600 | 1820 | 40-φ49 | 1820 | 40-φ56 |
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