grease interceptor venting requirements

Most of you reading this know that there are different styles of grease interceptors. Drain down cant be controlled to two minutes due to the presence of air gaps on many of the fixtures. Where large central grease interceptors are entirely impractical, such as my old stomping ground of New York City, localized interceptors become the most practical solution. Exception: (pounds). First, I would like to start by saying Happy Holidays and New Year to all. I would size it as half the size of the inlet with a 2-inchminimum, but your AHJ might want you to use the connected fixture units so it is worth checking with your AHJ. Both HGIs and GRDs are sized based on the flow rate of the waste stream in gpm. The above diagram would not be compliant with the UPC. | Change settings. (5) Every vent pipe that serves an oil or grease interceptor and is located outside a building shall be not less than 3 in. This installation would be compliant with both the IPC and the UPC. dwellings. In the last 20 years we have grown from a small regional company to the most widely specified and inventoried (sold through plumbing wholesale) brand of grease interceptors in the U.S. Our expertise in navigating codes, standards, compliance, specifications and installations is unparalleled in the industry. Is it half the size of the connected waste piping? The unit shown is certified to ASME A112.14.3 Type C (without external flow control) with a built-in or integral flow control and does not require an air intake. There are the large gravity grease interceptors, concrete for many years, but made of plastic in more recent years. Venting is required on the downstream drain line - the same as most other plumbing appliances and fixtures to allow ecient and unrestricted discharge of the waste water . (6) Every grease interceptor shall have a vent pipe that is not less than 1 in. 4. refer to local plumbing code for venting, fixtures, and trap requirements. "F$H:R!zFQd?r9\A&GrQhE]a4zBgE#H *B=0HIpp0MxJ$D1D, VKYdE"EI2EBGt4MzNr!YK ?%_&#(0J:EAiQ(()WT6U@P+!~mDe!hh/']B/?a0nhF!X8kc&5S6lIa2cKMA!E#dV(kel }}Cq9 Grease interceptors shall be constructed of durable, corrosion-resistant materials and shall have water-tight covers securely fastened in place. This drawing shows a semi-automatic draw-off type grease interceptor but without a vented external flow control. endstream endobj startxref Interceptors and separators shall be vented in . You would think after being around so long that the plumbing associated with these units would be long established and well defined, but it is not. Schierlocated in Shawnee, Kansasis a privately-owned, 100% USA-made manufacturer of a premier lineup of high-capacity, lifetime guaranteed grease interceptors for commercial kitchens. Fats, oils and grease in the sewer system costs the region over $2.7 million each year. Generally speaking, most grease interceptors must be serviced at least every 90 days. Grease interceptors are required for all Food Service Establishments (FSEs) that do not qualify for a Low Grease Discharge Waiver (LGDW). This is fine if the waste hauler has a means of access to the unit with their vacuum hose, but often they are mistakenly buried in the parking garage where no such access exists, and a grease truck is much too tall to drive into a parking garage with 8'-4'' ADA clearance. This is best done with an empty grease interceptor. p* Los Angeles County grease interceptor detail Some of these large interceptors (basically the plastic ones) come with vent connections on the tank itself. However, these requirements also allow larger HGI models if site conditions are not ideal for a Gravity Grease Interceptor. 2) Minimum Size. This checklist is provided as a reference tool and it is not intended to be exhaustive of all possible plumbing requirements. This drawing for a PDI G101/ASME Type A grease interceptor appears to be compliant with the IPC. A grease interceptor as described in these standards shall be installed in any business establishment with kitchen facilities including restaurants, cafes, lunch counters, cafeterias, supermarkets, convenience HOWEVER, DO NOT PURCHASE ANY GREASE TRAP WITHOUT FIRST VERIFYING WITH OUR OFFICE THAT THE SPECIFIC MODEL WILL BE APPROVED FOR INSTALLATION! YY IpnnN$cG!v,:9g]7.x:Rtxr^-hZe\&_yVnC D0f0bH9 1_`cG\>L(&o(cmK T07( 1071 0 obj <>/Filter/FlateDecode/ID[<27EA446AC697844CAE5240B4F0D8AD98>]/Index[1046 48]/Info 1045 0 R/Length 122/Prev 312685/Root 1047 0 R/Size 1094/Type/XRef/W[1 3 1]>>stream Vy@ ggJ 1G0 V`JLX_HiNg` Tj There needs to be a trap and vent between the fixture and the vented flow control fitting. ?S]]__3`x~Mn-O_vW?o{W7W/NU/W|fw_qx-zfMSNgon>|~g^6/y%, #oi? ArW&-z(P\'`H"k>:/zIb GQ` Subscribe to our newsletters & stay updated, Grease interceptors and water conservation, IAPMO Publishes American National Standard and Canadian National Standard for Prefabricated Gravity Grease Interceptors, John Moore Hosts "Plumbing Olympics" in Houston, Franklin Electric Announces New Leadership Roles Within its Groundwater Distribution Organization, Rheem Heat Pump Surpasses U.S. Department of Energy Cold Climate Heat Pump Technology Challenge, Liberty Pumps Materials Center Open House with Charlie Cook. Conceptual drawing of a City of Austin approvedgravity grease interceptordesign. in size connected to the outlet pipe, that connects to the plumbing venting ="http://thehandyforce.com/interior/bathroom-renovations/" title ="Toronto Bathroom renovation inspiration">venting system. Metro Vancouver acknowledges that the regions residents live, work, and learn on the shared territories of many Indigenous peoples, including 10 local First Nations: qi(Katzie), q: (Kwantlen), kikm (Kwikwetlem), mthxwi (Matsqui), xmkym (Musqueam), qiqyt (Qayqayt), semyame (Semiahmoo), Swxw7mesh Uxwumixw (Squamish), scan msteyx (Tsawwassen) and sllwta (Tsleil-Waututh). I am hopeful that 2017 will be much better. Note: CSA 481.3 -12 requires dishwashers to be discharged into a dedicated grease trap. If you use this piece of equipment, I would get the vendor involved in the sizing. I, and many others, have written about grease interceptors, probably because their design requirements are quite vague and interpretation varies all over the map. Where to buy. (1) Every oil interceptor shall be provided with 2 vent pipes that. grease interceptor. To separate them from water an interceptor provides a separation chamber which allows FOG to rise to the surface. %PDF-1.5 % Building on our expertise and field-proven approach to grease and solids management, Endura XL consistently offers high performance hydromechanical grease management, with some of the industry's highest fats, oil and grease separation efficiencies. meet cleaning requirements. Drum traps used as solids interceptors and drum traps %PDF-1.6 % This is a very handy feature indeed. Most jurisdictions would say no because the interceptor is trapped internally. 673 0 obj <> endobj (7) A vent pipe shall be provided within 1 500 mm of the inlet to a grease interceptorcomplete with a cleanout to provide cleaning of thevent pipe. SPS 382.34(5)(c) (c) Exterior grease interceptors. As the waste stream flows through the orifice in the flow control device negative pressure is created, drawing in air from the air intake which is intended to mix with the waste water as it enters the grease interceptor aiding in separation efficiency. 1014.3 Gravity Grease Interceptors Required gravity grease interceptors shall comply with the provisions of Section 1014.3.1 through Section 1014.3.7 . A final requirement is that water flowing through a grease interceptor must not have a temperature above 180F. For example, you need at least 40 lb for 20 gpm. . {FC?X* iFWo}'R]EXe` @ endstream endobj 1047 0 obj <. A grease interceptor or automatic grease removal device shall be required to receive the drainage from fixtures and equipment with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias and clubs. As the waste stream flows through the orifice in the flow control device negative pressure is created, drawing in air from the air intake which is intended to mix with the waste water as it enters the grease interceptor aiding in separation efficiency. Plumbing systems for institutions or commercial establishments in which grease, fats, culinary oils or similar waste products from kitchens or food processing areas are wasted, or in which grease, fats or culinary oils are wasted in connection with utensil, vat, dish or floor cleaning processes shall include grease interceptors. To be honest, much of the confusion over whether a drawing shows a code compliant installation of a grease interceptor or not, can be the result of boilerplate drawings provided by manufacturers in submittals or installation instructions. The sizing of common venting is specified in Table 911.3. HyTSwoc [5laQIBHADED2mtFOE.c}088GNg9w '0 Jb Grease interceptor means an indoor device located in a food service facility or under a sink designed to collect, contain and remove food wastes and grease from the waste stream while allowing the balance of the liquid waste to discharge to the System by gravity. Keep a record of grease interceptor cleanouts and maintenance activities. 691 0 obj <>stream However, since PDI created this procedure, the health departments of the country have mandated indirect waste connections on prep sinks and the like, so drain down time cannot be controlled. Again, there is nothing wrong with this installation, though it may not be immediately obvious as to why. endstream endobj 679 0 obj <>stream As waste water flows through a kitchens plumbing (3-compartment sinks, prep sinks, mop sinks, dishwashers, floor drains, etc.) Grease Interceptor. nQt}MA0alSx k&^>0|>_',G! endstream endobj 678 0 obj <>/ExtGState<>/ProcSet[/PDF/ImageC]/XObject<>>>/TilingType 3/Type/Pattern/XStep 2048.0/YStep 1536.0>>stream If you do provide a vent, how do you size it? Enzymes, solvents, and emulsifiers are not permitted as they will only change the form of grease, allowing it to be carried out of the grease trap with the wastewater and deposited in the collection system. Interceptors and separators shall be designed so as not to become air bound. Anyway, on to happier subjects. If you are installing a grease interceptor, use our online tool for correct sizing. The vent on the flow control is an air intake. Examples of such features would include a flow diverter plate in the primary compartment, "tee" piping between the two GI compartments and "tee" piping on the tank outlet; Be constructed of concrete or non-corrodible materials; Each GI compartment shall be accessible for cleaning and inspection purposes (no exceptions). in size in areas where it may be subject to frost closure. For compliance with the UPC this drawing would have to show both a vented external flow control and a trap and vent for the fixture. GRDs are similar to HGIs except they have a motorized wheel that skims the floating grease off the top of the waste stream and deposits it in a removable container that makes maintenance quite simple. The International Plumbing Code (IPC) 1002.1 (exception 3) allows a grease interceptor to serve as a fixture trap - where it is intended by the manufacturer to serve as a trap - for a single fixture or a combination sink of not more than three compartments so long as the vertical distance from the outlet of the fixture to the inlet of the interceptor is not more than 30 inches and the developed length of the waste pipe from the most upstream fixture outlet to the inlet of the interceptor does not exceed 60 inches. Greases, fats and oils are about 89 or 90% of the weight of water. endstream endobj 979 0 obj <. Be aware that there is a maximum lift height of the vacuum pump on the service truck, so dont locate the unit more than one story below grade. Units supplied with external flow restrictors are vented on the inlet . Failure to service a grease interceptor on a routine and timely basis can result in complete back-up of the kitchens plumbing system. PDI G101 mandates the installation of an vented external flow control. PDI G101 and ASME A112.14.3 Type A certified interceptors are required to have a vented external flow control installed upstream of the interceptor. Privacy Statement of the Revised Code. Then again, thats how I prefaced my December 2015 article, so luck has certainly not been on my side. Grease interceptors must be selected according to our: The service provider can provide advice on how to configure a solution for your specific situation. Like HGIs, they can be recessed in the floor, located on the floor below, or sit on the floor next to a single fixture. A vent shall be installed downstream of hydromechanical grease interceptors in accordance with the requirements of this code. The service and maintenance cycle for a grease trap or grease interceptor can vary based upon several factors such as capacity, food type, restaurant or kitchen volume, and mandated ordinances. (2) Adjacent compartments within every oil interceptorshall be connected to each other by a vent opening. If it is a smaller indoor interceptor, some municipalities mandate servicing every 30 days. A kitchen in a B&B with more than nine rooms will need installation of a grease interceptor. Austin Waters Office of Industrial Waste (IW) modified its grease interceptor policies in April 2021. (d) do not connect to each other or any other vent pipe. (See Article 2.5.5.2 for venting requirements for oil interceptors.) The purpose of a grease interceptor is to catch and collect fats, oils, grease, and solids (FOGS) from commercial and restaurant kitchens. What's important to remember about AAVs is that they only allow for the relief of negative pressure in the drainage system. Do you have an interesting or questionable installation you can share? Hydromechanical grease interceptors shall meet the following requirements: Generally, HGIs are ideal for low FOG-producing establishments such as small sandwich shops, coffee shops, and bakeries that use disposable flatware and do not utilize an automatic dishwasher, due to the HGIs compact size. Grease interceptor means a multi - compartment . Our purpose is to serve and provide for our employees by being a resilient company that offers best-in-class products and services. This bylaw applies to commercial kitchens and operations that prepare, package, serve, sell or otherwise handle food in a way that produces fats, oils and grease. and . hb```Lf yAXarPw`vB/+2[aa&]eL3DT -ke&{:2CFGC`h B j` SD Grease Interceptor are manufactured with patented distributed flow pattern and corrosion resistant fiberglass material capturing FOG before it clogs pipes, enters the sewer waste system, or spoils a successful operation. %%EOF You can ask Metro Vancouver to review your installation plan. hbbd```b``vA$S+^$Al$k9HD+D "_&) rB8H02UzeQ , ` `q'"& O@5 M_*! T! endstream endobj startxref 0 %%EOF 177 0 obj <>stream The two traps and their fixture drains can be either at the same level or at different levels, provided that they are on the same floor. Since the interceptor comes with a flow control in the inlet, if your drainage flow rate exceeds the rating of the interceptor the waste will back up and end up on the floor. The grease interceptor (GI) must be constructed in accordance with the current plumbing codes adopted by the City of Austin, as amended, and installed in a manner acceptable to the Development Services Division (no exceptions); The GI shall have two compartments. If you operate a commercial or institutional kitchen, you must: Violations may result in re-inspection fees of up to $300 or a fine. Promote longer time between cleaning to . HGIs are generally made from lined steel and are much smaller than gravity grease interceptors. A grease interceptor or automatic grease removal device shall be required to receive the drainage from fixtures and equipment with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias and clubs.

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