A47H/Y型安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备或管道上，当设备或管道内压力超过允值时，阀门自动开启，继而全量排放，当压力降到规定值时，阀门自动关闭，保证设备和管路的安全运行。安全阀是一种安全保护用阀，它的启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高，超过规定值时自动开启，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。
一、弹簧微启式外螺纹安全阀

A21F-16C A21F-25C A21F-40C A21H-16C A21H-25C A21H-40C A21H-64 A21H-100 A21H-160 A21H-320 A21W-16P A21W-25P A21W-40P A21Y-64P A21Y-100P A21Y-160P A21Y-320P A21W-16R A21W-25R A21W-40R

二、弹簧式外螺纹安全阀

A27H-10 A27H-16 A27H-16C A27W-10P A27W-16P A27W-10R A27W-16R A28H-10 A28H-16 A28H-10C A28H-16C A28W-10P A28W-16P A28W-10R A28W-16R A27W-10T

三、弹簧微启式安全阀

A41H-16C A41H-25C A41H-40 A41H-64 A41H-100 A41H-160 A41H-320 A41Y-16P A41Y-25P A41Y-40P A41Y-64P A41Y-100P A41Y-160P A41Y-320P A41Y-16R A41Y-25R A41Y-40R A41Y-64R A41Y-100R A41Y-160R A41Y-320R A41W-16P A41W-25P A41W-40P A41W-64P A41W-100P A41W-160P A41W-320P A41W-16R A41W-25R A41W-40R A41W-64R A41W-100R A41W-160R A41W-320R

四、弹簧全启式安全阀

A42H-16C A42H-25C A42H-40 A42H-64 A42H-100 A42H-160 A42H-320 A42Y-16C A42Y-25C A42Y-40 A42Y-64 A42Y-100 A42Y-160 A42Y-320 A42Y-16P A42Y-25P A42Y-40P A42Y-64P A42Y-100P A42Y-160P A42Y-320P A42Y-16R A42Y-25R A42Y-40R A42Y-64R A42Y-100R A42-160R A42Y-320R A42W-16P A42W-25P A42W-40P A42W-64P A42W-100P A42W-160P A42W-320P A42W-16R A42W-25R A42W-40R A42W-64R A42W-100R A42W-160R A42W-320R A42F-16C A42F-25C A42F-40

五、帯扳手弹簧微启式安全阀

A47H-16C A47H-25C A47H-40 A47H-64 A47H-100 A47Y-16C A47Y-25C A47Y-40 A47Y-64 A47Y-100

六、帯扳手弹簧全启式安全阀

A48H-16C A48H-25C A48H-40 A48H-64 A48H-100 A48H-160 A48H-320 A48Y-16C A48Y-25C A48Y-40 A48Y-64 A48Y-100 A48Y-160 A48Y-320 A48Y-16P A48Y-25P A48Y-40P A48Y-64P A48Y-100P A48Y-160P A48Y-320P A48W-16P A48W-25P A48W-40P A48W-64P A48W-100P A48W-160P A48W-320P A48Y-16R A48Y-25R A48Y-40R A48Y-64R A48Y-100R A48Y-160R A48Y-320R A48W-16R A48W-25R A48W-40R A48W-64R A48W-100R A48W-160R A48W-320R

七、双联弹簧式安全阀

A43H-16C A43H-25C A43H-40 A38Y-16C A38Y-25C A38Y-40 A37H-16C A37H-25C A37H-40

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