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NYC Plumbing Code

§ 906.2 — § 906.2

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What is NYC PC § 906.2?

Quick Answer

This section specifies the minimum diameter requirements for various types of vents, including branch and relief vents, in relation to the drains they serve. It outlines that vent pipes must not be less than 1 1/4 inches in diameter and provides guidelines for sizing based on drainage fixture units. Applies to building owners managing plumbing systems.

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

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906.2 Vents other than stack vents or vent stacks.

PC § 906.2

The diameter of individual vents, branch vents, circuit vents and relief vents shall be at least one-half the required diameter of the drain served. The required size of the drain shall be determined in accordance with Table 710.1(2). Vent pipes shall not be less than 1 1/4 inches (32 mm) in diameter. Vents shall be sized in accordance with Table 906.1 utilizing the drainage fixture units and the corresponding developed length. Relief vents for soil and waste stacks in buildings having more than 10 branch intervals shall be sized in accordance with Section 908.2.

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