5503.3.1 Sizing.
FC § 5503.3.1
Pressure-relief-device vent piping shall have a cross-sectional area not less than that of the pressure-relief-device vent opening and shall be arranged so as not to restrict the flow of escaping gas.
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What is NYC FC § 5503.3.1?
Quick Answer
This section specifies that pressure-relief-device vent piping must have a cross-sectional area equal to or greater than the vent opening and must be arranged to avoid restricting the flow of escaping gas. Applies to building owners responsible for installing pressure-relief devices.
General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.
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