valve casing 阀箱 ; 阀体 ; 阀门罩
casing check valve 套管止回阀
casing float valve 套管浮阀
inlet valve casing 进气阀壳
exhaust valve casing 排气阀壳
According to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.
针对这一难题，研制了套管防盗油密封阀，并配套应用了井下油气分离器与气举阀助流举升工艺技术。
If the exhaust system is under a vacuum, the casing must be warmed by gradually introducing the steam, after opening the exhaust valve.
如果排气系统处于真空下，必须在打开排气阀后，逐渐引蒸汽来加热壳体。
A valve installed in the wellhead assembly to provide access to the casing annulus of non-producing casings.
安装在井口装置中的一个阀。它提供通向非生产套管的套管环形空间的通路。
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