ASME A112.18.8-2009 pdf download.In-Line Sanitary Waste Valves for Plumbing Drainage Systems.
1 GENERAL 1.1 Scope This Standard establishes minimum requirements for materials in the construction of sanitary waste valves (hereinafter referred to as “the valve”) for use as an alternate to tubular p-traps, and prescribes minimum test requirements for the performance of the valve, together with methods of marking and identification. This Standard doesnotdefine the requirements forprod- ucts to be used in urinals or water closets. It is not intended that products meeting this Standard will be used in a urinal or water closet. The provisions of this Standard are not intended to prevent the use of any alternate material or method of construction provided any such alternate meets the intent of this Standard. 1.2 Units of Measurement Values are stated in U.S. Customary units and in the International System of Units (SI). The U.S. Customary units shall be considered as the standard. In this Standard, gallons (U.S. liquid) per minute is abbreviated gpm and liters (metric liquid) per minute is abbreviated L/min. 1.3 References The following documents form a part of this Standard to the extent specified herein. Unless otherwise speci- fied, the latest edition shall apply. ANSI/ASSE 1051, Air Admittance Valves for Plumbing Drainage Systems Publisher: American Society of Sanitary Engineering (ASSE), 901 Canterbury Road, Westlake, OH 44145 ASME A112.18.2/CSA B125.2, Plumbing Waste Fittings ASME B1.20.1, Pipe Threads, General Purpose (Inch) Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 ASTM D 2000, Rubber Products for Automotive Applications ASTM F 409, Thermoplastic Accessible and Replaceable Plastic Tube and Tubular Fittings
Publisher: American Society for Testing and Materials (ASTM International), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 1.4 Definitions bladder/checking member: the component of the sanitary waste valve that provides the sealing function. sanitary waste valve: a product used as an alternate to a water-filled tubular waste trap which provides protec- tion for the property from foul air in the sewer. 2 GENERAL REQUIREMENTS 2.1 Material The valve shall meet the material requirements of ASTM F 409. The valve shall be installed in accessible locations. 2.2 Seal Material Seal materials shall comply with or exceed classifica- tion M3BA507 A14 B13 C12 F17 or M2BG714 B14 EO14 EO34 of ASTM D 2000. 2.3 Bladder/Checking Member Material Bladder/checking member material comply with or exceed classification M3FC607 EA14 EO16 G11 of ASTM D 2000. 2.4 Valve Inlet 2.4.1 The valve inlets shall be 1 1 ⁄ 4 in. (31.8 mm) or 1 1 ⁄ 2 in. (38.1 mm), nominal straight or with an 87 1 ⁄ 2 -deg elbow or be standard pipe size straight inlet (see Fig. 1). 2.4.2 The base of the thread may be sealed by a sealing washer (inlet set) at the base of the thread. The useful thread length shall be between 3 ⁄ 8 in. (9.5 mm) and 1 ⁄ 2 in. (12.7 mm). All threaded fixture outlets shall have a minimum three-thread engagement for fittings and plastic nuts to correctly engage/energize the inlet seal in accordance with ASTM F 409. 2.4.3 If required for horizontal installations, an 87 1 ⁄ 2 -deg knuckle adapter shall be available to allow the valve to be connected in a horizontal position. The device and connected piping, when installed in a hori- zontal position, shall have a minimum slope of 1:48 [i.e., 1 ⁄ 4 in./ft (21 mm/m)].
2.4.4 If required, a straight-running adapter shall be available to allow the valve to be connected to pipe rather than the fixture outlet. 2.5 Valve Outlet The valve outlet shall have a connection that is compatible with tubing manufactured to ASTM F 409 or threaded connections complying with ASME A112.18.2/CSA B125.2. 2.6 Threaded Connections All threads that connect to external fixtures shall com- ply with ASME B1.20.1. 3 TESTING 3.1 Waterway Flow Rate 3.1.1 Test Method. Connect the valve to the waste outlet hole of the tank in accordance with Fig. 2 and the manufacturer’s installationinstructions.