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 that separate fats, oils, and grease from commercial kitchen wastewater. Manufactured in Karachi and supplied across Pakistan. Standard Small, Medium, and Large sizes are listed below. If the kitchen has a consultant drawing or a custom specification, we build to that.
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 1.5″ / 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 in stock classes. Other flows and layouts are manufactured from the customer or consultant drawing.
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 detailsConsultant and customer drawings
Standard 17, 34, and 120 GPM units cover many kitchens. When the drainage design is already drawn, we manufacture the grease trap to that drawing — from the consultant, the kitchen designer, or the customer.
These descriptions are Moon Steel product positioning, not a code certification.
22″ × 15″ × 12″ · Inlet 1.5″ · Outlet 2″
24″ × 18″ × 18″ · Inlet 3″ · Outlet 3″
48″ × 24″ × 24″ · Inlet 4″ · Outlet 4″
Spin the flow wheel. 17, 34, and 120 GPM are the three sizes we usually make — those land on the catalog tank. Other flows stay rectangular in the same length-to-width ratios (22″ × 15″, 24″ × 18″, or 48″ × 24″), with a recommended height. If you already have a drawing, upload it with the quote.
Flow
Recommended size
Standard Moon Steel model
Grease Trap Small 17 GPM
22″ × 15″ × 12″ · ~17.1 gal
One of the three sizes we usually make. Cafés and light-duty sinks.
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 1.5″ / 2″ · Medium 3″ / 3″ · Large 4″ / 4″ |
| Fabrication | Custom sizes from customer or consultant drawings |
Do not allow grease and solids to accumulate until they significantly reduce the effective working volume.
Moon Steel manufactures stainless steel grease traps and grease interceptors in Karachi and supplies them across Pakistan. Use a standard Small, Medium, or Large unit when it fits. When the consultant or customer has a drawing, we build the tank to that spec.
Use the calculator for a standard size, or upload the consultant or customer drawing and we will quote the tank to that specification.