Design & Operation
Grease interceptors are designed to prevent greasy substances from entering plumbing systems, septic fields and wastewater treatment facilities, where they are difficult to process and can create a number of environmental problems. Grease interceptors are commonly specified in restaurant kitchens and food handling or processing areas to keep drainage systems free of problematic grease accumulations. Grease interceptors work by collecting all lighterthan-water substances, such as grease, inside the interceptor. This is accomplished through the use of a flow restrictor on the inlet side of the interceptor, which slows incoming effluent and redirects it through baffling inside the interceptor. This slowing and baffling process allows lighterthan-water substances to accumulate inside the interceptor above the static water line. Design criteria is determined by plumbing code and typically follows the guidelines set forth by the Plumbing & Drainage Institute (PDI), which tests and rates interceptors. The accepted industry and PDI standard (PDI-G101) is to maintain 90% separation efficiency, up to the rated grease retention capacity
Material & Characteristics:
Epoxy Coated Steel - Interceptor body standard 11 ga. CR steel, with oven cured, acid resistant baked gray epoxy coating, inside and out. Lid is epoxy coated 1 ⁄4" skid-proof checker plate steel, gasketted, and secured with Allen head center bolt(s). All stainless steel construction may be specified for high sanitary applications. Flow Restrictor - WD Series Interceptors are supplied with an external cast iron flow restrictor. All other interceptor models are designed with a built-in stainless steel flow restrictor plate, located just inside the inlet.
Professional installation is recommended
All Dormont Grease Interceptors are PDI Certified