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NYC Mechanical Code

§ 1307.5 — § 1307.5

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What is NYC MC § 1307.5?

Quick Answer

This section mandates that relief valves be set to discharge at a pressure not exceeding 1.5 times the maximum working pressure of the system. Additionally, it requires that the discharge from relief valves be returned to the storage tank or supply line, prohibiting shut-off valves in the relief line. Applies to building owners operating systems with relief valves.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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1307.5 Relief valve operation.

MC § 1307.5

Relief valves shall be set to discharge at not more than 1 1/2 times the maximum working pressure of the system. The discharge from relief valves shall be returned to the storage tank or to the supply line. Shut-off valves are not permitted in the line of relief.

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