2.弹簧全启式安全阀全启式安全阀的开启高度大于或等于流道直径的1/4。全启式安全阀的排放面积是阀座喉部***小截面积。其动作过程是属于两段作用式，必须借助于一个升力机构才能达到全开启，全启式安全阀主要用于气体介质的场合。R900920508DBE10-5X/100YG24NK4MR90057163DBE10-5X/100YG24NZ4MR900520027DBE10-5X/100YG24Z4MR900550696DBE10-5X/100YG24Z4VR900969650DBE10-5X/200XYG24K4MR900758752DBE10-5X/200XYG24K4VR900570668DBE10-5X/200XYG24Z4MR900579169DBE10-5X/200YG24K4MR900973475DBE10-5X/200YG24K4VR900923188DBE10-5X/200YG24NK4MR900714301DBE10-5X/200YG24NK4VR900536997DBE10-5X/200YG24NZ4MR900521576DBE10-5X/200YG24Z4MR900517820DBE10-5X/200YG24Z4VR901069892DBE10-5X/315XYG24K4MR900924161DBE10-5X/315XYG24NK4M)