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NYC Fuel Gas Code

§ 504.3.7 — § 504.3.7

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What is NYC FGC § 504.3.7?

Quick Answer

This section outlines the adjustments to vent connector capacities based on the number and angle of elbows in the connectors. Specifically, it states that capacities are reduced by 5 percent for each additional elbow up to 45 degrees, and by 10 percent for elbows greater than 45 degrees. Applies to building owners managing venting systems.

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

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504.3.7 Elbows in connectors.

FGC § 504.3.7

The vent connector capacities listed in the common vent sizing tables include allowance for two 90-degree (1.57 rad) elbows. For each additional elbow up to and including 45 degrees (0.79 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 5 percent. For each elbow greater than 45 degrees (0.79 rad) up to and including 90 degrees (1.57 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 10 percent.

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