ASSE 1049 2009
$24.38
ASSE Standard #1049-2009 Performance Requirements for Individual and Branch Type Air Admittance Valves for Chemical Waste Systems
Published By | Publication Date | Number of Pages |
ASSE | 2009 | 20 |
AAVCs are devices used in chemical waste systems to prevent the siphonage of trap seals. These devices do not relieve back pressure; they only allow air to enter the system. They are designed to be used for individual fixtures or for a horizontal branch serving multiple fixtures. When the devices are installed in a building, there shall be at least 1 open vent terminal to relieve positive pressure which extends to the atmosphere outside of the building serving the same building drain on which these devices are installed. These devices shall not be installed in an area with a constant air pressure differential greater than ±0.3 inches (7.6 mm) WC.
PDF Catalog
PDF Pages | PDF Title |
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1 | Section I 1.0 General 1.1 Application 1.2 Scope |
2 | T able 1 1.3 Construction 1.4 Reference Standards |
11 | Section II 2.0 Test Specimens 2.1 Samples Submitted 2.2 Samples Tested 2.3 Drawings 2.4 Rejection |
12 | Section III 3.0 Performance Requirements and Compliance Testing 3.1 Pressure Test of Complete Device |
13 | Figure 1 3.2 Rating and Opening Pressure Test |
14 | Figure 2 3.3 Endurance Test |
15 | Figure 3 |
16 | . Section IV 4.0 Detailed Requirements 4.1 Materials 4.2 Instructions for Marking and Installation |
18 | Section V 5.0 Definitions |