Rockford RGI-500 Gravity Grease Interceptor – 500 Gallon, 2,520 lb, 250 GPM, H20 Rated
Rockford RGI-500 — Gravity Grease Interceptor, 500 Gallon / 2,520 lb / 250 GPM
The Rockford Separators RGI-500 is a high-capacity, all-welded steel gravity grease interceptor built for large-scale commercial and institutional food service operations. With a 500-gallon liquid holding volume, 2,520 lb greasy sludge capacity, and a cover rated for H20 heavy truck traffic, the RGI-500 handles up to 250 GPM intermittent flow from multiple kitchen drain lines simultaneously. The large-volume tank provides extended gravity dwell time for effective FOG separation, drastically reducing pumpout frequency compared to smaller under-sink traps. All-welded steel with bituminous exterior coating. Built to IAPMO/ANSI Z1001-2014. Custom-built to order in Rockford, IL — non-returnable.
Key Features of the Rockford RGI-500
Custom-Built to Order — Non-Returnable: The RGI-500 is fabricated to order. Confirm capacity, manway height, pipe configuration, and local plumbing code requirements with your engineer or plumbing inspector before placing your order. Returns are not accepted on custom units.
RGI-500 Specifications
| Model | RGI-500 |
|---|---|
| Series | RGI — Gravity Grease Interceptor |
| Liquid Holding Capacity | 500 Gallons |
| Greasy Sludge Capacity | 2,520 lb |
| Flow Rate (Intermittent) | 250 GPM |
| Inlet / Outlet Connection | 4" Threaded |
| Vent Connection | 3" (Dual) |
| Manway | 6" Tall (Standard — Custom Height Available) |
| Width (Front to Back) | 48" |
| Length (Side to Side) | 60" |
| Height (Floor to Top) | 54" |
| Top to Center of Inlet | 16" |
| Top to Center of Outlet | 18" |
| Bottom to Center of Inlet | 44" |
| Bottom to Center of Outlet | 42" |
| Approx. Ship Weight | 1,450 lb |
| Body Construction | All-Welded Steel, Bituminous Coating (Exterior) |
| Cover | 3/8" Nonskid Diamond Treadplate, Stainless Flat-Head Screws |
| Gasket | Heavy-Duty Leak-Proof |
| Load Rating | H20 — Heavy Truck Traffic |
| Lifting | 4 Lifting Lugs Supplied |
| Construction Standard | IAPMO/ANSI Z1001-2014 |
| Installation | Flush-with-Grade or Above-Ground |
| Order Notes | Custom-Built to Order — Non-Returnable |
| Manufacturer | Rockford Separators, Rockford, IL |
Frequently Asked Questions
What is a gravity grease interceptor and how is the RGI-500 different from an RP-series trap?
A gravity grease interceptor is a large tank that separates FOG (fats, oils, grease) from wastewater through extended dwell time and gravity separation. The RP Series are small PDI-rated under-sink traps for individual fixtures. The RGI Series are large tanks rated in gallons of liquid holding, sized to handle an entire facility's kitchen drain output in a single unit.
What is the greasy sludge capacity of the RGI-500?
The RGI-500 holds 2,520 lb of greasy sludge within its 500-gallon liquid volume — providing long intervals between service pumpouts for figh-volume commercial food service operations.
Can the RGI-500 handle heavy truck traffic?
Yes. The 3/8" nonskid diamond treadplate cover is H20 load rated — rated for commercial and highway truck traffic. The unit can be installed flush with grade in parking lots, loading areas, and service drives where vehicles cross the cover.
Is the RGI-500 returnable?
No. The RGI-500 is custom-built to order and non-returnable. Confirm capacity, manway height, pipe sizes, and local plumbing code requirements with your engineer or plumbing inspector before ordering.
Can the manway height be customized?
Yes. The standard RGI-500 ships with a 6" tall manway. If the unit will be buried deeper or installed under a paved overlay, specify the required manway height at time of order.
What construction standard does the RGI-500 meet?
The RGI-500 is built to IAPMO/ANSI Z1001-2014 — the nationally recognized construction standard for fabricated gravity grease interceptors, referenced by commercial plumbing codes across the United States.
| Brand | Rockford Seperators|Grease Traps |
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| SKU | RGI-500 |
| Brand | Rockford Seperators|Grease Traps |
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