Standard: AGA - ANSI Z223.1


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This code is a safety code that shall apply to the installation of fuel gas piping systems, appliances, equipment, and related accessories as shown in through (A)* Coverage of piping systems shall extend from the point of delivery to the appliance connections. For other than undiluted liquefied petroleum gas systems, the point of delivery shall be the outlet of the service meter assembly or the outlet of the service regulator or service shutoff valve where no meter is provided. For undiluted liquefied petroleum gas systems, the point of delivery shall be considered to be the outlet of the final pressure regulator, exclusive of line gas regulators, where no meter is installed. Where a meter is installed, the point of delivery shall be the outlet of the meter.

(B) The maximum operating pressure shall be 125 psi (862 kPa).

Exception No. 1: Piping systems for gas-air mixtures within the flammable range are limited to a maximum pressure of 10 psi (69 kPa).

Exception No. 2: LP-Gas piping systems are limited to 20 psi (140 kPa), except as provided in 5.5.1 (6) .

(C) Piping systems requirements shall include design, materials, components, fabrication, assembly, installation, testing, inspection, operation, and maintenance.

(D) Requirements for appliances, equipment and related accessories shall include installation, combustion, and ventilation air and venting. 

This code shall not apply to the following (reference standards for some of which appear in Annex L):

(1) Portable LP-Gas appliances and equipment of all types that are not connected to a fixed fuel piping system

(2) Installation of appliances such as brooders, dehydrators, dryers, and irrigation equipment used for agricultural purposes.

(3) Raw material (feedstock) applications except for piping to special atmosphere generators

(4) Oxygen-fuel gas cutting and welding systems

(5) Industrial gas applications using such gases as acetylene and acetylenic compounds, hydrogen, ammonia, carbon monoxide, oxygen, and nitrogen

(6) Petroleum refineries, pipeline compressor or pumping stations, loading terminals, compounding plants, refinery tank farms, and natural gas processing plants

(7) Large integrated chemical plants or portions of such plants where flammable or combustible liquids or gases are produced by chemical reactions or used in chemical reactions

(8) LP-Gas installations at utility gas plants

Organization: American Gas Association
Document Number: ansi z223.1
Publish Date: 2015-01-01
Page Count: 204
Change Type: REPR
Available Languages: EN
DOD Adopted: NO
ANSI Approved: YES
Most Recent Revision: NO
Current Version: YES
Status: Active

Document History

Document # Change Type Update Date Revision Status
ANSI Z223.1 Change Type: ERTA Revision: 15 Status: ACTV
ANSI Z223.1 Change Type: ERTA Update Date: 2016-03-10 Revision: 15 Status: ACTV
ANSI Z223.1 Change Type: Update Date: 1996-01-01 Revision: 96 Status: INAC