blow down valve

常見例句

From spring rigidity and range of set pressure, spring optimize design to same diameter's safety valve at set pressure near blow-down pressure are discussed.
從彈簧剛度、整定壓力范圍，討論了針對安全閥同一口徑，在整定壓力和回座壓力比較接近的情況下，彈簧的優(yōu)化設(shè)計(jì)。
The manual withdrawal device realizes the withdrawal and discharging on the withdrawal objects by driving the bottom frame and the blow off valve to move up and down through the pull rod.
本實(shí)用新型通過拉桿帶動底閥、排空閥的上、下運(yùn)動，實(shí)現(xiàn)對抽取對象的抽取排出。
ip.com

The Blow Out Preventer is off the well which is being controlled by a down hole safety valve.
FORBES: Davy Jones #1 Well Flow Test Appears Imminent