Iowa Admin. Code r. 875-91.5

Current through Register Vol. 47, No. 8, October 30, 2024

Rule 875-91.5 - Location of discharge piping outlets

The discharge from safety valves, safety relief valves, blowoff pipes and other outlets shall comply with the following:

(1) The discharge piping shall terminate at a safe point of discharge.

(2) When the safety valve or temperature and pressure relief valve discharge is piped away from the object to a safe point of discharge, provision shall be made for properly draining the piping.

(3) The size of the discharge piping shall not be reduced from the size of the relief valve.

(4) All discharge piping shall be comprised of appropriate metallic material identified in ASME Section II.

Iowa Admin. Code r. 875-91.5

Amended by IAB October 20, 2021/Volume XLIV, Number 8, effective 11/24/2021