The Ingersoll Rand 56270713 tank safety valve is rated to 200psi and uses 1/4" NPT threads. 56270713 relief valve was used on the 2-stage Ingersoll Rand piston / reciprocating air compressors and opens if the system pressure reaches 200psi or more.
This was commonly installed on the 2340L5 and 2475N5 air compressors.
ST25-200
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