unfired pressure vessel

unfired pressure vessel

[¦ən′fīrd ′presh·ər ‚ves·əl]
(chemical engineering)
A pressure vessel that is not in direct contact with a heating flame.
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References in periodicals archive ?
Armstrong (R-Lancaster), adopts the Boiler and Unfired Pressure Vessel Law and repeals an outdated boiler law.
or the Company), today announced that it has successfully completed the recertification of its full slate of American Society of Mechanical Engineers (ASME) code stamps, including S - Power Boiler, PP - Power Piping Systems, U - Unfired Pressure Vessels, N - Nuclear Components, NPT - Nuclear Piping Systems (with and without design authority) and NS - Nuclear Supports (with and without design authority).