The carrier gas is supplied to the instrument at constant pressure from a cylinder. 載氣一般由壓縮鋼瓶供給，并要使載氣壓力恒定。
Special designs effective for low intake pressure or suction-side applications. 具有在低入口壓力或負壓情況下應用的特殊設計。
Calculate the pressure difference by subtracting the desired outlet pressure from the maximum inlet pressure. 通過(guò)從最大進(jìn)口壓力減去所需要的出口壓力來(lái)計算壓差。
The valve opens for tank discharge when tank head pressure is greater than valve inlet pressure. 當容器水頭壓力大于閥門(mén)進(jìn)口壓力時(shí)，閥門(mén)開(kāi)啟進(jìn)行容器排放。
