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DH-A系列低温止回阀

此类型专用低温止回阀适用于低温贮槽、槽车和罐车防止介质倒流,广泛用于LNG、液态乙烯及其它低温介质,具有密封可靠的特点。

This type is special low temperature check valve is suitable for low temperature storage tank, tank car and tank car to prevent the reverse medium, is widely used in LNG, ethylene and other low temperature liquid medium, has the characteristics of the sealing is reliable.

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主要技术参数 Main technical parameters

公称压力/Nominal pressure:4.0MPa

设计温度/Design temperature:-196℃~+80℃

适用介质/Applicable medium:LNG 、LO2、LN2、LAr

连接方式/Connection method:对焊

主要零部件名称 Main components name材料 Materials
阀体/Valve bodyZG0Cr18Ni9
阀瓣/Valve disc0Cr18Ni9Ti
主密封件/Main sealPTFE
型号/Model主要外形和连接尺寸/Main form and the connection size (mm)

HLD0D1D2B
DH-10A5660Ф13Ф13Ф174
DH-15A6265Ф15Ф17.08Ф21.35
DH-20A7180Ф20Ф22.48Ф26.75
DH-25A7890Ф25Ф27.86Ф33.45
DH-40A99120Ф40Ф42.76Ф48.35
DH-50A112140Ф50Ф54.76Ф60.35
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