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PVC Flow Control Installation <br /> The flow control device furnished with the Endura Grease Interceptor is essential to the proper <br /> operation of this unit. The flow control limits the flow to the rated capacity of the <br /> interceptor, allowing enough time for grease separation to take place inside <br /> Flow Direction Identifier <br /> the interceptor. <br /> The flow control fitting furnished with the Endura Grease Interceptor INTAKE Entrainment <br /> "MEM must be solvent welded using PVC solvent cement, upstream of the CLEANOUT <br /> o�� <br /> _1/4"---1 <br /> 'I / <br /> llig interceptor in the drain line beyond the last connection from the �fixture andasclose as possible tothe underside of thelowestMTIMMIAIIIII <br /> r <br /> �� fixture. When the discharge from two or more sinks or fixtures are —�. <br /> combined and served by one interceptor, a single flow control fitting 1''' ~111 `— <br /> should be used. <br /> The installation of a Ball Valve upstream of the clean out is recommended.A ball <br /> valve will prevent flooding if the maintenance person forgets to install the sink plugs <br /> — to alleviate head pressure. <br /> The Endura Grease Interceptor is furnished with an air intake fitting. This fitting is recommended when space is <br /> available. Introducing air to the grease effluent promotes grease separation and retention within the interceptor. The air <br /> admittance tee should be installed directly after the flow control (refer to the diagram above).The air intake should not be <br /> considered a vent. Air admittance is not a requirement of the code but is recommended. If the interceptor is installed very <br /> close to the fixtures it is serving, and space limitations inhibit both the Flow Control fitting and Air Admittance Tee from <br /> being installed,the Air Admittance Tee is not required. In tight applications such as these,there is an insufficient time interval <br /> to recognize the performance enhancement the Air Admittance Tee provides. <br /> Some local plumbing codes require that grease interceptors have an internal flow control to ensure drain lines do not bypass <br /> the grease interceptor. However, if the flow control device is located immediately upstream of an interceptor, it may be <br /> considered as forming part of the interceptor.Therefore, officials having jurisdiction may accept such design as meeting the <br /> intent of the requirement. If local codes dictate the flow control must be installed directly preceding the grease interceptor <br /> inlet, and the fixtures being served are in excess of 8 ft(2.4 m)from the interceptor,we recommend a second flow control being <br /> installed as close to the last fixture as possible. Please contact your local representative if you require further clarification. <br /> Note: Some local jurisdictions require that the interceptor service the floor drains.The floor drain must bypass the flow control <br /> to ensure the restriction does not flood the drain. Therefore, the flow control should be installed as close to the fixture as <br /> possible or directly preceding the floor drain connection. <br /> Tight Enclosures Typical Installation Optional In Floor <br /> AIR ADMITTANCE VALVE <br /> (AAV) <br /> (OPTIONAL) i i —sr— <br /> AIR INTAKE AIR INTAKE <br /> —/� AIR INTAKE _/__. NIS �— <br /> • <br /> rtim ' I>t�l,.i n��. <br /> MN <br /> 11 �;1�1i, ll\ : <br /> MINI min sr,qm <br /> MiIF I110I1111li, 11rll <br /> '11111.115111111 <br /> 2 <br />