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The P304 series gas cylinder valve is suitable for high-pressure, high-purity, corrosive, and toxic gases. It adopts a direct connected diaphragm type external seal to ensure that there are no small particles generated in the area where the gas flows through, aiming to ensure high purity of the gas. It has the characteristics of low leakage rate and large flow rate.
PARAMETERS:
流量系数(Cv) Flow coefficient Cv | 0.35 |
公称压力 Max.working pressure | 20MPa(3000psig) |
工作温度 Temperature range | -40℃~65℃ |
泄漏率 Leak rate | 内部internal:<1×10-9Pa·m3/s 外部external:<1×10-9Pa·m3/s
|
连接方式 Connections | CGA718、3/4"NGT |
孔径 Seat diameter size | 4mm |
制造标准 Manufacturing standards | GB/T15382-2021、CGA V-1-2023 |
MEDIUM WETTED MATERIALS:
阀 体 Body materials:AISI 316L/316L vim+var/哈氏合金 Hastelloy
膜 片 Diaphragm:哈氏合金 Hastelloy +镍基合金 Waspaloy
下主轴 Lower spindle:AISI 316L/316L vim+var/哈氏合金 Hastelloy /镍基合金 Waspaloy
阀 座 Seat disc:PCTFE/PVDF/PI
OPTIONS:
电化学抛光 Electrochemical polishing
洁净室装配(百级洁净室) Cleanroom assembly (Class 100 cleanroom)