R900520284 DBE 10-3X/50YG24EX
R900587338 DBE 10-3X/50YG24J
R900403979 DBE 10-3X/50YG24NZ4
R900447597 DBE 10-3X/50YG24Z4
R900481495 DBE 10-3X/50YG24Z4MK
R900455119 DBE 10-3X/50YG24Z4V
R900576604 DBE 10-3X=200YG24Z4-308
R900573783 DBE 10-5X/100XYG24Z4M
R900916121 DBE 10-5X/100YG24K4M
R901085195 DBE 10-5X/100YG24K4V
R900920508 DBE 10-5X/100YG24NK4M
R90057163 DBE 10-5X/100YG24NZ4M
R900520027 DBE 10-5X/100YG24Z4M
R900550696 DBE 10-5X/100YG24Z4V
R900969650 DBE 10-5X/200XYG24K4M
R900758752 DBE 10-5X/200XYG24K4V
R900570668 DBE 10-5X/200XYG24Z4M
3.开放式安全阀
开放式安全阀的阀盖是敞开的，使弹簧腔室与大气相通，这样有利于降低弹簧的温度，主要适用于介质为蒸汽，以及对大气不产生污染的高温气体的容器。