ANSI Z21.75-2007 pdf download American National Standard/ CSA Standard For Connectors For Outdoor Gas Appliances And Manufactured Homes
1.1 Scope
1.1.1 This standard applies to newly produced assembled connectors constructed entirely of new, unused parts and materials. Such connectors are intended for exterior use above ground for making the following nonrigid connections: a. Between the gas supply and the gas inlet of an appliance for outdoor installation that is not frequently moved after installation. These connectors are not intended for use with wheeled, caster mounted or portable appliances; b. Between the permanent gas outlet of a manufactured home community (mobile home park) or individual site and the piping inlet on a park trailer or a manufactured (mobile) home; or c. Between sections of a multiple section manufactured (mobile) home.
1.1.2 Connectors covered by this standard are considered suitable for use with natural, manufactured, mixed and liquefied petroleum (LP) gases and LP gas-air mixtures.
1.1.3 Connectors covered by this standard are for use on piping systems operating at fuel gas pressures not in excess of 1 / 2 lb/in 2 (3.5 kPa).
1.1.4 Connectors covered by this standard shall have a nominal length of not less than 1 ft (0.31 m) nor more than 6 ft (1 .83 m).
1.1.5 If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.
1.1.6 All references to “psi” throughout this standard are to be considered gage pressure unless otherwise specified.
1.1.7 Exhibit A contains provisions that are unique to Canada.
1.1.8 Exhibit B contains a list of standards specifically referenced in this standard and sources from which these reference standards may be obtained.
1.2 General
1.2.1 The construction of connectors not specifically covered by this standard shall be in accordance with reasonable concepts of safety, substantiality and durability.
All specifications as to construction set forth herein may be satisfied by the construction actually prescribed or such other construction as will provide at least equivalent performance.
1.2.2 A connector shall be free from acid residue, scale and loose oxides.
1.2.3 There shall be no visible porosity in welds.
ANSI Z21.75-2007 pdf download
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