Some years ago, I was successful in getting a sizing table written in to Chapter 10 of the UPC relating fixture units to grease interceptor size, but the IPC still does not have such a table so it remains a mystery in that code. . hb```b`0 B,@Q@g4l0>' #4pKU"[L[uM-6 z `:0 'b 78. As waste water flows through a kitchen's plumbing (3-compartment sinks, prep sinks, mop sinks, dishwashers, floor drains, etc.) The IPC approves the use of and installation requirements for AAVs under section 918.0. HGIs are generally made from lined steel and are much smaller than gravity grease interceptors. (a) connect to the interceptor at opposite ends, (c) terminate not less than 2 000 mm above ground and at elevations differing by at least 300 mm, and. in size, or can be sized in accordance with the manufacturers recommendations. [Comment: When a reference is hb``Pa``b``9a Have someone on site who can open the grease interceptor for inspection. This drawing for a PDI G101/ASME Type A grease interceptor appears to be compliant with the IPC. The only solution for compliance with the UPC is to add a vent for the trap on the fixture upstream of the vented flow control fitting. If you do provide a vent, how do you size it? If you are installing a grease interceptor, use our online tool for correct sizing. Below is a comparison between our most recent version and the prior quarterly release. HOWEVER, DO NOT PURCHASE ANY GREASE TRAP WITHOUT FIRST VERIFYING WITH OUR OFFICE THAT THE SPECIFIC MODEL WILL BE APPROVED FOR INSTALLATION! Hunters Curve doesnt work because it is intended for water flow rates, not drainage. endstream endobj 979 0 obj <. %PDF-1.6 % For engineered GGIs, specific models shall meet the following requirements: The goal for engineered GGIs is to closely comply to the concrete GGI requirements but allow slight flexibility if site conditions are not ideal for a concrete GGI. Grease Interceptor. endstream endobj startxref The approved design for GGIs shall be as follows: Exceptions to the above criteria may be considered for approval in conjunction with the Building Plan Review process. The following diagrams show some of the various approaches to common venting. HGIs greater than 500 gallons must have a 60/40 split between compartments. If a grease interceptor needs to be installed, replaced or fixtures need to be connected, call a plumber or other service provider. If you would like Metro Vancouver to review your grease interceptor installation plan, replacement plan, or fixture connection plan, please fill out this form: If the grease interceptor contained greater than 25% fats, oils, grease, and solids, you must have it pumped out and cleaned immediately, then provide us with the documentation from your service provider. processes, meat packing and food processing facilities and similar processing An "auto fry" is defined as an enclosed, ventless, self-contained individual-serving deep fryer. %%EOF By continuing to use our website, you acknowledge the use of cookies. There needs to be a trap and vent between the fixture and the vented flow control fitting. 6111.44 Interceptors and separators shall be designed so as not to become air bound. SPS 382.34(5)(c) (c) Exterior grease interceptors. 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. ASME A112.14.3 allows four types of ratings as follows: Type A - units with external flow control, with air intake (vent): directly connected, Type B - units with external flow control, without air intake (vent): directly connected, Type C - units without an external flow control: directly connected, Type D - units without an external flow control: indirectly connected. Privacy Statement . plumbing from approved fixtures as required in district standards . Grease interceptors shall be constructed of durable, corrosion-resistant materials and shall have water-tight covers securely fastened in place. In any event, a grease trap, interceptor or separator shall be fully evacuated, cleaned, and inspected at least once every 180 days. A Hydromechanical Grease Interceptor (HGI) does not require to be directly vented unless specifically mandated by local code or by law. Grease and Commercial Kitchens Brochure (English). I would argue the former since, as noted above, each connected fixture is already trapped and the vent just serves to allow for the displacement of air it is not protecting a 1'' trap seal. To separate them from water an interceptor provides a separation chamber which allows FOG to rise to the surface. Model plumbing codes require each fixture discharging into a grease interceptor be individually trapped and vented, and require the installation of a vent downstream of the grease interceptor. into a grease interceptor, the FOGS are intercepted or filtered out into a large underground holding tank. {FC?X* iFWo}'R]EXe` @ Do not purchase a grease interceptor without obtaining a building plan approval includingan Industrial Waste approval letterspecifying the size and design of the interceptor that will be required. PDI G101 mandates the installation of a vented external flow control. 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. 1002.1 Fixture traps. This drawing shows a semi-automatic draw-off type grease interceptor but without a vented external flow control. . a) All required grease interceptors shall comply with the following: 1) Material and Covers. 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 p* This material is COPYRIGHT QUEEN'S PRINTER FOR ONTARIO, 2008-2018. Both HGIs and GRDs are vented on the outlet. hUmo0+~"UKHKnG@6%-m}o~8]c"!B!\d\?C\,8wf2:4sg% yNpi-v[Jl6@:SyQ gnZMlVlo'sH#B*i 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. Specs and Installation. For example, you need at least 40 lb for 20 gpm. Some of these large interceptors (basically the plastic ones) come with vent connections on the tank itself. Promote longer time between cleaning to . Conceptual drawing of a City of Austin approvedgravity grease interceptordesign, View contact information for grease trap manufacturers. (8) Where an acid waste dilution tank is installed, it shall be provided with a vent pipe connected at the top of the tank and that is sized in accordance with Article 7.5.7.7. Wastewater leaving the grease interceptor must not exceed 300 mg/L of oil and grease and 600 mg/L of solids. 0 and 101 0 obj <> endobj 139 0 obj <>/Filter/FlateDecode/ID[<8100D9A72E24714CB39E4D32A0282084><7624C21409664899A744A21F2F606FC0>]/Index[101 77]/Info 100 0 R/Length 170/Prev 846138/Root 102 0 R/Size 178/Type/XRef/W[1 3 1]>>stream Since all semi-automatic draw-off grease interceptors are certified to either PDI G101 or ASME A112.14.3 Type A (that I am aware of) an external vented flow control must be shown for compliance with the IPC. 673 0 obj <> endobj It may also include more items than a specific set of plumbing plans may encompass. HyTSwoc [5laQIBHADED2mtFOE.c}088GNg9w '0 Jb Please see below for the updated requirements. h[YoG+hc` @ek= K;ZoR[&&yTVvUeA3+C+iJ Our purpose is to serve and provide for our employees by being a resilient company that offers best-in-class products and services. YLE&_| _fZ K*8Xbxl`ab8`NA!948y"vt n/9((+ K p& endstream endobj 102 0 obj <>/Metadata 3 0 R/Pages 99 0 R/StructTreeRoot 10 0 R/Type/Catalog/ViewerPreferences<>>> endobj 103 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/XObject<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 104 0 obj <>stream Both HGIs and GRDs are sized based on the flow rate of the waste stream in gpm. 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. That being the case the interceptor does not require a vented external flow control - jurisdictions unfamiliar with this type of interceptor often question drawings like this and understandably so. 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. Greases, fats and oils are about 89 or 90% of the weight of water. 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. Please turn on JavaScript and try again. Failure to service a grease interceptor on a routine and timely basis can result in complete back-up of the kitchens plumbing system. 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. endstream endobj 678 0 obj <>/ExtGState<>/ProcSet[/PDF/ImageC]/XObject<>>>/TilingType 3/Type/Pattern/XStep 2048.0/YStep 1536.0>>stream H*w6PH/2402Q0 B]s3 "s=s \ Metro Vancouver respects the diverse and distinct histories, languages, and cultures of First Nations, Mtis, and Inuit, which collectively enrich our lives and the region. 4101:3 - Board of Building Standards: Ohio Plumbing Code, Ohio Admin. the last fixture serviced, and the inlet of the interceptor. Assuming the interceptor is intended to serve as a fixture trap, there is no requirement to install an additional trap and vent between the fixture and the interceptor. 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. Proper maintenance is the key to meeting these limits. Do you have an interesting or questionable installation you can share? PDI G101 mandates the installation of a vented external flow control. A vent shall be installed downstream of hydromechanical grease interceptors in accordance with the requirements of this code. 992 0 obj <>stream Los Angeles County grease interceptor detail. %%EOF Wastes from industrial First, I would like to start by saying Happy Holidays and New Year to all. e.) Venting is recommended on both the inlet and outlet side of the interceptor, or as governed by local code. There are the large gravity grease interceptors, concrete for many years, but made of plastic in more recent years. 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. View contact information for grease trap manufacturers (Adobe PDF) that are familiar with these criteria. A space is needed at the bottom for sludge . hbbd```b``vA$S+^$Al$k9HD+D "_&) rB8H02UzeQ , ` `q'"& O@5 M_*! T! endstream endobj startxref 0 %%EOF 177 0 obj <>stream the publication as well as the name and address of the promulgating agency are level to allow for venting. All exterior interceptors shall be designed and constructed in accordance with this paragraph, so as to constitute an individual structure. Standards also come into play when it comes to determining the type and location of vents upstream of a grease interceptor. Vy@ ggJ 1G0 V`JLX_HiNg` Tj Manufacturer's are required to identify which Type their interceptor is rated to when certifying to the ASME standard. . 14420 ,J For grease trap or grease interceptor routine or emergency maintenance, please give us a call! Does the unit need a running trap as shown in the 25-year-old detail by the county of Los Angeles? The grease interceptor (GI) must be constructed in accordance with the current plumbing codes adopted by the City of Austin, as amended, and installed in a manner acceptable to the Development Services Division (no exceptions); The GI shall have two compartments. grease trap shall not be made of steel or stainless steel. The sizing of common venting is specified in Table 911.3. (3) Where a secondary receiver for oil is installed in conjunction with an oil interceptor, it shall be vented in accordance with the manufacturer's recommendations, and the vent pipe shall. Most jurisdictions would say no because the interceptor is trapped internally. Schierlocated in Shawnee, Kansasis a privately-owned, 100% USA-made manufacturer of a premier lineup of high-capacity, lifetime guaranteed grease interceptors for commercial kitchens. The drawing shows a PDI G101/ASME Type A grease interceptor with an external flow control with air intake, however it also shows a trap on the fixture but no vent for the trap. wG xR^[ochg`>b$*~ :Eb~,m,-,Y*6X[F=3Y~d tizf6~`{v.Ng#{}}jc1X6fm;'_9 r:8q:O:8uJqnv=MmR 4 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. Grease interceptors are required for all Food Service Establishments (FSEs) that do not qualify for a Low Grease Discharge Waiver (LGDW). (Adobe PDF). This is not compliant with the IPC since the code does not allow double trapped fixtures. If such is the case, they should be piped to the vent system and not left plugged, otherwise it may void the interceptor warranty. Note: CSA 481.3 -12 requires dishwashers to be discharged into a dedicated grease trap. Protection Agency", or the authority in charge of the sewerage system into Hydromechanical Grease Interceptors (HGI). meet cleaning requirements. . @le&exDxX in size in areas where it may be subject to frost closure. I am hopeful that 2017 will be much better. Either adding a vent to the trap or removing the trap on the fixture altogether would solve the problem. Then again, thats how I prefaced my December 2015 article, so luck has certainly not been on my side. If such is the case, they should be piped to the vent system and not left plugged, otherwise it may void the interceptor warranty. When it comes to traps and vents for grease interceptors and the fixtures discharging to them, it's incumbent upon an engineer or contractor to identify and comply with local code requirements regardless what a manufacturer's drawing shows. This installation is compliant with both the IPC and the UPC since it shows a trapped and vented fixture discharging through an approved interceptor without external vented flow control with a vent installed downstream. This installation would be compliant with both the IPC and the UPC. (See Article 2.5.5.2 for venting requirements for oil interceptors.) dwellings. The vent on the flow control is an air intake. insize, (b) extend independently to open air, and. endstream endobj 1047 0 obj <. Exception: A grease interceptor shall be provided for proper handling of liquid wastes containing grease. 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). A grease interceptor (or grease trap) is a device that separates fats, oils and grease from wastewater and stops it from entering the sewer system. into a grease interceptor, the FOGS are intercepted or filtered out into a large underground holding tank. If you use this chart, I would use the one-minute column, or your interceptor might be undersized. 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 . Many states that adopt or adapt the UPC have added an allowance for AAVs so you will have to check with your state to see if they are approved. Manufacturer's want to provide guidance for a broad range of installations without providing detailed drawings for every single installation variable that can exist. . 4. refer to local plumbing code for venting, fixtures, and trap requirements. 2) Minimum Size. 1003.9 Venting of interceptors and separators. Book -Volume 4, Chapter 8, Grease Interceptors or CSA B481 Series-12 may also be considered. hbbd``b`$f wqu@V&FD:Ft? [ The interceptor must be cleaned whenever 25 percent of any chamber becomes filled with FOG or solids. These large central units are often buried outside or hidden in a parking garage. hbbd```b``5 )D/r`v&/A' ([bH0l-g3R ,> $^,$$ ?o 4} Sizing of gravity grease interceptors was a mystery for many years, since thePlumbing Drainage Institute (PDI) sized the units based on meals served per hour coupled with drain down time.
grease interceptor venting requirements