Filters and separator can capture in the air the liquid or solid, so shall be equipped with discharge valve.
过滤器和分离器可以捕获空气中的液体或固体，因此应当配备排放阀门。
2
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。
3
For valve with Arrow Position Indicator, add the letter "I" before the dash separator (e. g., 4423i-025).