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◆Purpose
Heat restraining ball valve has capacity of heat and cold preservation. Consistent with the pipe diameter and gateway diameter, can effectively reduce the heat lost in the medium of pipe. It utilized in petroleum, chemical industry, metallurgy, pharmacy, food and other aspect.
◆Standard
Design Criterion：ASME B 16.34、GB/T12224
Dimension：ASME B 16.10、GB/T12221
Connected flange：ASME B 16.5、JB/T 79
Inspect and test：API 598、 JB/T9092
◆Chief Property and Specification
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Model
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BQ41F-16C
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BQ41F-25C
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BQ41F-16P
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BQ41F-25P
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Work temperature（MPa）
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1.6
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2.5
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1.6
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2.5
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Suitable temperature（℃）
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≤200
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Suitable medium
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Noncorrosive medium
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Corrosive medium
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Material
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Body、Bonnet
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Carbon steel
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Cr Ni Ti steel
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ball
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Cr Ni steel
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seat
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PTFE or oxygenation rubber
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PTFE
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Stem
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Deposition hard steel
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Cr Ni steel
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