Wafer Butterfly Valve
basic information
technique parameters:
Nominal diameter: DN50-DN250
face-face standard:EN558 Series 20
ISO 5752 Series 20
API 609 Table 1
flange connection: EN 1092 PN6/10/16
ASME Class 150
AS 4087 PN16
JIS B 2012 10K
flange seal: EN 1092 Form A/B
ASME RF,FF
top flange: EN ISO 5211
seal standard: EN 12266
ISO 5208
working pressure: biggest 16bar
Product features:
1.complete two-way seal.
2.precise machining on both valve body and disc,ensuring small torque and long life.
3.Three bushings on valve shaft to prevent skew; even after many years usage,still ensure very high positioning precision. 4.Four flange positioning holes ensuring the correct position of valve when installing.
Application industry:
1.Chemical and petroleum.
2.Water processing and waste water processing.
3.transmission of gas.
4.ship building.
5.Power plant project,Environment protection project and thermal engineering project.
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Aluminium alloy butterfly valve
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