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  1. UnOwen

    Who or what mandates required IP rating for equipment?

    Thanks Gr8blu, that makes ense. Appriciate the quick respone. Just curious if there is an example for an AHJ and the code it would refer to?
  2. UnOwen

    Who or what mandates required IP rating for equipment?

    Hello everyone I understand the IP ratings, the numbers, and what the equipment is protected against. I can't find out who or what dictates what IP rating is required in which environment. For example, a motor may be rated IP 22 or IP 23 but who or what dictates it must be either of the two if...
  3. UnOwen

    Does a PSV has a MAWP?

    Hi Thanks but I am not asking how the set pressure of the PSV relates to the MAWP of the vessel. What I am asking is, if the PSV as a device itself has a MAWP? Lets assume I have a vessel, which MAWP is 215 PSIG. So I would set my PSV at 215 PSIG or lower. However, the PSV itself is a...
  4. UnOwen

    Does a PSV has a MAWP?

    Would make sense on a flanged PSV. How about a threaded PSV? I assume a PSV is considered as "fitting" and as it has a CRN it has a MAWP. However, I have never seen an MAWP on any PSV data sheet, test report or Name Plate. If the PSV does have a MAWP it must be higher as or equal to the MAWP of...
  5. UnOwen

    Does a PSV has a MAWP?

    Hello I have a very simple question. Does a PSV itself has a MAWP? I am just asking as I have never seen it on a data sheet or a name plate but since the PSV has a CRN I assume it has a MAWP associated to it. Thanks

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