1、ASME A112.1.3-2000 AIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES, APPLIANCES, AND APPURTENANCES AN AMERICAN NATIONAL STANDARD ASME A112.1.3-2000 AIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES, APPLIANCES, AND APPURTENANCES AN AMERICAN NATIONAL STANDARD REAFFIRMED 2015 FOR CURRENT COMMITTEE PERSON
2、NEL PLEASE E-MAIL CSasme.orgAN AMERICAN NATIONAL STANDARD AIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES, APPLIANCES, AND APPURTENANCES ASME A112.1.3-2000Date of Issuance: September 11, 2000 This Standard will be revised when the Society approves the issuance of a new edition. There will be no adde
3、nda or written interpretations of the requirements of this Standard issued to this edition. ASME is the registered trademark of The American Society of Mechanical Engineers. This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The S
4、tandards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional publ
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7、ts, and the risk of infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only
8、 those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior wr
9、itten permission of the publisher. The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990 Copyright 2000 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.FOREWORD Industry has often incorporated air gaps into commercial ttings to p
10、rovide back siphonage and backow protection for the water supply systems to which the ttings are connected. Designers of such ttings took guidance from documents such as ASME A112.1.2, but there was not a national standard specically directed toward ttings that included air gaps. In response to requ
11、ests to modify ASME A112.1.2 to specically cover ttings with air gaps, the ASME A112 Main Committee determined that the better course was to develop a separate standard for this purpose. A Project Team was created, and this Standard is the result of that work. Suggestions for improvement of this Sta
12、ndard are welcomed. They should be sent to The American Society of Mechanical Engineers; Attn: Secretary, A112 Main Committee; Three Park Avenue, New York, NY 10016. This Standard was approved as an American National Standard on July 5, 2000. iiiASME STANDARDS COMMITTEE A112 Standardization of Plumb
13、ing Materials and Equipment (The following is the roster of the Committee at the time of approval of this Standard.) OFFICERS P. J. Higgins, Chair S. A. Remedios, Vice Chair C. J. Gomez, Secretary COMMITTEE PERSONNEL R. H. Ackroyd, Rand Engineering J. A. Ballanco, JB Engineering 0.5 gpm (1.892 L/min
14、) for maximumAIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES, APPLIANCES, AND APPURTENANCES ASME A112.1.3-2000 rated ow between 1 and 10 gpm (3.785 and 37.85 L/min); 2 gpm (7.570 L/min for ow rated from greater than 10 gpm (37.85 L/min) up to 20 gpm (75.70 L/ min); and 5 gpm (18.92 L/min) for ow rat
15、ed greater than 20 gpm (75.70 L/min). 5.3.2 Any entrance of water into the sight tube shall be cause for rejection of the device. 5.4 Back Pressure Test 5.4.1 This test shall be conducted on air gap ttings which are rated by their manufacturer to protect against backow into the outlet of the tting.
16、With the tting installed in accordance with the manufacturers installa- tion instructions, the manufacturers maximum rated back pressure or backow shall be applied. The ow shall be maintained at least 20 sec after the height of back owing water stabilizes. Verify that during this test that the water
17、 does not rise above the manufacturers critical level mark on the tting. 3 5.4.2 Water above the critical level mark shall be cause for rejection of the tting. 6 MARKINGS Air gap ttings shall be permanently marked with the following information: (a) the manufacturers name or trademark. (b) the manuf
18、acturers model number. (c) the manufacturers critical level mark. (d) “inlet” or “outlet” or ow direction. If the tting has multiple inlets, all inlets shall be marked. 7 INSTALLATION INSTRUCTIONS Installation instructions that describe the proper instal- lation of the tting with respect to the crit
19、ical level and to the orientation required for the tting to comply with the performance tests of Section 5 shall be provided with the tting. Manufacturers literature shall include the maximum rated ow to the inlet(s) and any back pressure or back ow rating.ASME STANDARDS RELATED TO PLUMBING Air Gaps
20、 in Plumbing Systems A112.1.2-1991(R1998) Air Gap Fittings for Use With Plumbing Fixtures, Appliances, and AppurtenancesA112.1.3-2000 Performance Standard and Installation Procedures for Stainless Steel Drainage Systems for Sanitary, Storm, and Chemical Applications, Above and Below Ground.A112.3.1-
21、1993 Water Heater Relief Valve Drain Tubes A112.4.1-1993(R1998) Plastic Fittings for Connecting Water Closets to the Sanitary Drainage System A112.4.3-1999 Floor-Affixed Supports for Off-the-Floor Plumbing Fixtures for Public UseA112.6.1M-1997 Backwater ValvesA112.14.1-1975(R1998) Plumbing Fixture F
22、ittings . A112.18.1-2000 Performance Requirements for Backflow Protection Devices and Systems in Plumbing Fixture Fittings A112.18.3M-1996 Flexible Water Connectors A112.18.6-1999 Deck-Mounted Bath/Shower Transfer Valves With Integral Backflow Protection. A112.18.7-1999 Enameled Cast Iron Plumbing F
23、ixtures.A112.19.1M-1994(R1999) Vitreous China Plumbing Fixtures A112.19.2M-1998 Stainless Steel Plumbing Fixtures (Designed for Residential Use) .A112.19.3M-1987(R1996) Porcelain Enameled Formed Steel Plumbing Fixtures.A112.19.4M-1994(R1999) Trim for Water-Closet Bowls, Tanks, and Urinals A112.19.5-
24、1999 Hydraulic Performance Requirements for Water Closets and Urinals. A112.19.6-1995 Whirlpool Bathtub Appliances . A112.19.7M-1995 Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs, and Whirlpool Bathtub Appliances A112.19.8M-1987(R1996) Non-Vitreous Ceramic Plumbing Fixture
25、s.A112.19.9M-1991(R1998) Dual Flush Devices for Water Closets A112.19.10-1994 Wall Mounted and Pedestal Mounted, Adjustable and Pivoting Lavatory and Sink Carrier Systems. A112.19.12-2000 Floor Drains .A112.21.1M-1991(R1998) Roof Drains A112.21.2M-1983 Hydrants for Utility and Maintenance UseA112.21.3M-1985(R1995) Cleanouts .A112.36.2M-1991(R1998) The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary catalog, or the latest information about our publications, call 1-800-THE-ASME (1-800-843-2763).
