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// CODE SNIPPET

G2417.7.1.3 (406.7.1.3) Outdoor Discharge of Purged Gases

Residential Code 2021 of Colorado > 24 Fuel Gas > G2417 (406) Inspection, Testing and Purging > G2417.7 (406.7) Purging > G2417.7.1 (406.7.1) Piping Systems Required to Be Purged Outdoors > G2417.7.1.3 (406.7.1.3) Outdoor Discharge of Purged Gases
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The open end of a piping system being pressure vented or purged shall discharge directly to an outdoor location. Purging operations shall comply with all of the following requirements:
  1. The point of discharge shall be controlled with a shutoff valve.
  2. The point of discharge shall be located not less than 10 feet (3048 mm) from sources of ignition, not less than 10 feet (3048 mm) from building openings and not less than 25 feet (7620 mm) from mechanical air intake openings.
  3. During discharge, the open point of discharge shall be continuously attended and monitored with a combustible gas indicator that complies with Section G2417.7.1.4.
  4. Purging operations introducing fuel gas shall be stopped when 90 percent fuel gas by volume is detected within the pipe.
  5. Persons not involved in the purging operations shall be evacuated from all areas within 10 feet (3048 mm) of the point of discharge.

Related Code Sections


G2417.7.1.3 Fuel Gas, (406.7.1.3) Outdoor Discharge of Purged Gases
The open end of a piping system being pressure vented or purged shall discharge directly to an outdoor location. Purging operations shall comply ...
Residential Code 2021 of Colorado > 24 Fuel Gas > G2417 (406) Inspection, Testing and Purging > G2417.7 (406.7) Purging > G2417.7.1 (406.7.1) Piping Systems Required to Be Purged Outdoors > G2417.7.1.3 (406.7.1.3) Outdoor Discharge of Purged Gases
G2417.7.1.3 Fuel Gas, (406.7.1.3) Outdoor Discharge of Purged Gases
The open end of a piping system being pressure vented or purged shall discharge directly to an outdoor location. Purging operations shall comply ...
Residential Code 2018 of Colorado > 24 Fuel Gas > G2417 (406) Inspection, Testing and Purging > G2417.7 (406.7) Purging > G2417.7.1 (406.7.1) Piping Systems Required to Be Purged Outdoors > G2417.7.1.3 (406.7.1.3) Outdoor Discharge of Purged Gases
406.7.1.3 Gas Piping Installations, Outdoor Discharge of Purged Gases
The open end of a piping system being pressure vented or purged shall discharge directly to an outdoor location. Purging operations shall comply ...
Fuel Gas Code 2018 of Colorado > 4 Gas Piping Installations > 406 (IFGS) Inspection, Testing and Purging > 406.7 Purging > 406.7.1 Piping Systems Required to Be Purged Outdoors > 406.7.1.3 Outdoor Discharge of Purged Gases
705.5.3 Gaseous Hydrogen Systems, Discharge of Purged Gases
The open end of piping systems being purged shall not discharge into confined spaces or areas where there are sources of ignition except where ...
Fuel Gas Code 2018 of Colorado > 7 Gaseous Hydrogen Systems > 705 (IFGC) Testing of Hydrogen Piping Systems > 705.5 Purging of Gaseous Hydrogen Piping Systems > 705.5.3 Discharge of Purged Gases
705.5.3.1 Gaseous Hydrogen Systems, Vent Pipe Outlets for Purging
Vent pipe outlets for purging shall be located such that the inert gas and fuel gas is released outdoors and not less than 8 feet (2438 mm) above ...
Fuel Gas Code 2018 of Colorado > 7 Gaseous Hydrogen Systems > 705 (IFGC) Testing of Hydrogen Piping Systems > 705.5 Purging of Gaseous Hydrogen Piping Systems > 705.5.3 Discharge of Purged Gases > 705.5.3.1 Vent Pipe Outlets for Purging
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