The Ingersoll Rand 54381348 tank safety valve is rated to 160psi and uses 1/8" NPT threads. 54381348 relief valve was used on the portable electric and gas driven SS3 reciprocating air compressors from Ingersoll Rand. This valve opens if the system pressure reaches 160psi or more.
This was commonly installed on the 2340L5 and 2475N5 air compressors.
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SS3
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