





An Offset Spherical Butterfly Valve is designed to deliver tight shut-off, smooth operation, and extended service life in demanding industrial applications; as a result, dependable performance is ensured. Because the offset spherical seat design reduces friction between the disc and the seat, wear is consequently minimized. Therefore, reliable sealing is maintained even under high pressure and extreme temperature conditions.
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TECHNICAL DETAIL |
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DESIGN TYPE |
OFFSET DESIGN |
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MFG. STANDARD |
BS 5155, API 609 & AWWA 504 |
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TESTING STANDARD |
API 598/ BS 6755 Part-I |
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FACE TO FACE STANDARD |
BS 5155, API 609 & AWWA 504 / ANSI B 16.10 |
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PRESSURE & TEMPERATURE RATING |
ASME B 16.34 |
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PRESSURE CLASS |
150#, 300# |
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VALVE SIZE |
1½” To 40” |
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END CONNECTIONS |
WAFER TYPE |
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FLANGE DRILLING |
150#, 300# |
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VALVE SEAT LEAKAGE |
CLASS VI (Zero Leakage) |
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MATERIAL OF CONSTRUCTIONS |
CI TO IS 210 GR. FG 200 |
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OPERATIONS |
HAND WHEEL / GEAR |
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