01
Wastewater enters
Kitchen wastewater enters through the inlet, carrying fats, oils, grease, and food solids.
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Commercial Kitchen Drainage
Heavy-duty AISI 304 stainless steel grease traps designed to separate fats, oils, and grease from commercial kitchen wastewater. Fabricated in Karachi for restaurants, hotels, and institutional kitchens across Pakistan.
A grease trap slows wastewater and provides separation time for fats, oils, and grease (FOG) to float while heavier solids settle before wastewater leaves the unit.
Commercial kitchen
Grease-laden wastewater
Grease trap
Grease rises ↑
Flow slows
Solids settle ↓
Treated flow
01
Kitchen wastewater enters through the inlet, carrying fats, oils, grease, and food solids.
02
The inlet and baffle arrangement reduces a straight path across the tank so the flow can settle.
03
Fats, oils, and grease rise. Heavier solids settle. Relatively clearer water moves toward the outlet.
04
The outlet arrangement helps retain the floating grease layer and settled solids inside the unit.
Built as fabricated stainless steel interceptors, not generic drainage boxes.
1.50 mm nominal body thickness for corrosion resistance in commercial kitchen drainage.
Fully welded, leak-resistant tanks with smooth internal surfaces for easier cleaning.
Internal baffling slows flow so grease can rise and solids can settle before water exits.
Access for removing floating grease, settled solids, and internal components.
Small 1″ / 2″, Medium 3″ / 3″, Large 4″ / 4″ inlet and outlet. Custom sizes on request.
Serviceable baffles and a clear grease/solids layout rather than sealed compartments.
17 GPM, 34 GPM, and 120 GPM, plus custom fabrication for other flows and layouts.
Fabricated by Moon Steel for restaurants, hotels, and institutional kitchens in Pakistan.
Inlet → inlet chamber → baffle → main separation chamber → outlet baffle → outlet. The aim is to prevent incoming wastewater from taking a straight path to the outlet.
1. Inlet
Incoming wastewater from connected kitchen fixtures.
2. Inlet baffle
Reduces direct flow and turbulence at the surface.
3. Grease separation zone
Quieter volume where FOG can rise.
4. Solids collection zone
Heavier material settles toward the bottom.
5. Outlet baffle
Helps keep floating grease from leaving with the effluent.
6. Outlet
Discharges separated wastewater downstream.
Each model lists nominal GPM, overall size, and inlet/outlet. Gross tank volume is the geometric capacity of the tank.
GT-17
Compact22″ × 15″ × 12″
Cafés and light-duty sinks.
View technical details
GT-34
Commercial24″ × 18″ × 18″
Restaurants and moderate commercial kitchens.
View technical details
GI-120
Large commercial48″ × 24″ × 24″
Hotels, catering, and high-volume kitchens.
View technical detailsThese descriptions are Moon Steel product positioning, not a code certification.
22″ × 15″ × 12″ · Inlet 1″ · Outlet 2″
24″ × 18″ × 18″ · Inlet 3″ · Outlet 3″
48″ × 24″ × 24″ · Inlet 4″ · Outlet 4″
Select the required flow in GPM. Typical dimensions are planning ranges. Exact size depends on brand and model — always confirm against the manufacturer datasheet.
Required flow (GPM)
Units
Typical dimensions for a 17 GPM trap
These are typical ranges for planning space. Actual dimensions vary by manufacturer. Always check the datasheet for the model you specify.
Recommended Moon Steel model
Grease Trap Small 17 GPM
17 GPM · 22″ × 15″ × 12″ · ~17.1 gal gross volume
Sizing guidance only. Final grease trap selection should comply with the applicable plumbing authority, project specifications, and local requirements.
| Material | AISI 304 stainless steel |
| Body thickness | 1.50 mm nominal |
| Internal baffles | AISI 304 |
| Welding | TIG welded, leak-resistant |
| Cover | Removable |
| Nominal flow | Small 17 GPM · Medium 34 GPM · Large 120 GPM |
| Inlet / outlet | Small 1″ / 2″ · Medium 3″ / 3″ · Large 4″ / 4″ |
| Fabrication | Custom sizes available |
Do not allow grease and solids to accumulate until they significantly reduce the effective working volume.
We manufacture custom stainless steel grease traps to suit kitchen layout, drainage requirements, and project specifications — including inlet and outlet size, cover arrangement, and overall dimensions.
Moon Steel fabricates stainless steel grease traps and grease interceptors in Karachi for restaurant kitchens, hotels, and food-service drainage. Standard Small, Medium, and Large sizes are listed above; custom grease trap sizing is quoted from drawings.
Tell us about your kitchen and we will help determine the appropriate configuration.