A41H型适用于工作温度≤300oC的空气、石油气……等介质的设备或管路上。A41Y型适用于温度≤200oC有腐蚀性介质的设备和管路上。
连接法兰标准按JB/T系列1，其中64、100压力级法兰采用JB/T系列2。
A41H type safety valves are used for the equipment and pipelines of air and petroleum gas with working temperature lower than 300°C.
A41Y type safety valves are used for the equipment and pipelines of corrosive medium with working temperature lower than 200°C.