A42Y-C型安全阀适用于工作温度≤300℃的空气、***、液体等介质的设备或管路上。A42Y-P/R型适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。外形尺寸和连接尺寸公称通径DNdoDNˊLL1≈H201525110952812516321109528132204011510028540255012011029550326513512030565408016014039480501001701354061006512520516051112580150210190586150100175255230601200125250305260734250150300350320928300220400370350115935025050050045015204002805005004501530)