ASME A112.14.4:2001 pdf free download

ASME A112.14.4:2001 pdf free download.GREASE REMOVAL DEVICES.
ASME A112.14.4 establishes requirements for grease interceptors that arc equipped with automatic grease removal devices (GRD). It includes testing requirements and perfonnance crieria designed to ensure conformance to this Standard.
Such devices are designed for the purpose of autoniatically removing free4loating 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 S1) units. Tbe U.S. Customary units shall be considered as the standard.
In this Standard. gallons (U.S. liquid) per minute is abbreviated gpin and liters (metric liquid) per minute is abbreviated limin.
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 AXX8. Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm L)rain. Waste. and Vent Piping Applications
Publisher: American Society for Testing and Materials (ASTM). 100 Barr Harbor Drive. West Corishohocken, PA 1942g-2959.
ANSIINFPA 70. National Electrical Code
Publisher: National Fluid Power Association (NFPA), 3333 N. Mayfair Road. Milwaukee, WI 53222-32 19
ASME A1l2.14.3. Grease Interceptors
ASME 131.20.1, Pipe Threads, General Purpose (Inch) Publisher The American Society of Mechanical Engineers (ASME), Three Park Avenue. New York. NY 10016-5990
(a) Flow control and/or vent requirements
(b) Separate trapping requirements
(c) Elevation and accessibility requirements
(d) Saicty and health-related instructions
fr) Wiring instructions tO reference national or local codes
(/) Cleanout locations
(g) Instructions that show the clearances required for tiiaintenance. cleaning, and prevention of haiards
2.3 Maintenance and Operating Instructions
Each ORD shall be provided with service instructions. which include a trouble shooting guide as well as instructions for performing necessary servicing or obtaining outside servicing. Units shall be provided with complete maintenance and operating instructions.
2.4 Electrical Requirements
All electrical components used in the GRD shall conform to the appropriate standards listed in para. 1.3.
3 TESTiNG
3.1 General
The following test protocol has been established in order to demonstrate that the GRD is capable of removing accumulated grease in the amount equal to 100% of its rated capacity within 24 hr and to establish that the removed grease contains no more than 5% water by volume.
3.2 Description of Test Setup
3.2.1 Test Stand
(a) The GRD to be tested shall be installed on the lest stand as described in ASME Al 12.14.3 and in Fig. I. The grease discharge shall he connected to or shall feed a container of sufficient size to hold 150% of the rated capacity of fats, oils, and grease from the GRD. This container shall he positioned in a location recommended by the manufacturer of the GRD in the installation instructions for the product.
(b) The GRI) shall be connected to an appropriate electrical supply as described in the installation instruclions and as required on the electrical data plate on thc GRD. if applicablc. The electrical circuit shall be fused or otherwise protected and shall be appropriately grounded. If required by the manufacturer, ground fault protection shall be provided.
(c) All warning devices (which indicate grease levels) shall be installed on the GRI) or remotely located as described in the manufacturer’s installation instructions.
3.2.2 Grease Delivery System (Grease Metering Sink). A floor sink ui sufficient volume to contain 10% of the rated grease capacity of the GRD being tested shall be connected through a ball valve to the horiiontal line between the base of the vertical waste riser IASME Al 12. 14.3. para. 3.2.l.44d)I and the GRD inlet (See Fig. I). This floor sink shall be used to meter grcasc into the GRD.
3.2.3 Test Materials. Lard, as required in ASME Al 12.14.3. shall be used to conduct this test.
3.3 GRD Conditioning
Prior to starling the test increments, the GRD shall be cleaned of all grease from previous tests and filled with fresh water to the static water level. The water shall be at a temperature of 70±10°F (21±6°C). All electronic and mechanical components shall be set as described in the manufacturer’s instructions for normal operation.
3.4 Grease Removal Test
3.4.1 The rated retention capacity of the GRD submitted for test shall be determined in accordance with ASMI Al12.14.3.