Help – The meaning of safety valve models

2015-06-14View Original

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This post was last edited by Ameba on 2015-6-17 12:59. What do the numbers 3L4 150 on a spring-type safety valve mean?

Reply #22015-06-15

I guess 150 should refer to the caliber. Take a photo of the brand name on your safety valve.

Reply #32015-06-17

DN150 is presumably the nominal diameter; as for the coding of safety valve models, there are specific regulations for that, and the original poster can check those out~~

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Help – The meaning of safety valve models

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