ASME A112.14.4:2001 pdf free download

ASME A112.14.4:2001 pdf free download.GREASE REMOVAL DEVICES.
Such devices are designed for the purpose of automatically removing free-floating grease. fats, and oils from sanitary discharges without intervention from the user except for maintenance.
Semiautomatic devices are not addressed in this Standard
1.2 Units of Measurement
Values are stated in U.S. Customary units and the International System Sl) units. 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 liquidi per minute is abbreviated Lfmin.
1.3 Reference Standards
A product that is tested to the requirements of this Standard shall satisfy the requirements of the following standards as applicable (the latest edition shall apply):
ASTM A888, Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain. Waste, and Vent Piping Applications
Publisher: American Society (or Testing and Materials (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
ANSI/NFPA 70. National Electrical Code
Publisher: National Fluid Power Association (NFPA), 3333 N. Mayfair Road, Milwaukee. WI 53222-3219
ASME A 112.14.3, Grease Interceptors
ASME Bl.20.l. Pipe Threads. General Purpose (lnch Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY lOOl6-599
1.4 Definition
automatic greaseloil removal device (GRD): a plumb-ing appliance that is installed in the sanitary drainagesystem in order to intercept free-floating fats，oils，andgrease from waste water discharges. Such equipmentoperates on a time- or event-controlled basis and hasthe ability to remove the entire range of commonlyavailable free-floating fats, oils, and grease automaticallywithout intervention from the user except for mainte-nance.The removed material is essentially water-free,which allows for recycling of the removed product.
2 GENERAL REQUIREMENTS
2.1 Construction
2.1.1 Design Considerations. The GRD shallautomatically remove fats，oils,and grease from theseparation chamber to a point outside of the GRD.The removal process shall be such that the removedfats，oils,and grease shall be 95% by volume free ofwater when tested according to this Standard.
2.1.2 Size. The flow and grease retention of eachGRD shall be tested and rated in accordance withASME A112.14.3.
2.1.3 Inlet and Outlet Connections. The inletand outlet connections of the GRD shall be eitherfemale pipe thread or a plain end diameter to allowhubless coupling connections.Tapered threads shallcomply withASME B1.20.1.Hubless connections shallcomply with the outside dimension for the given pipesize in accordance with ASTM A888.