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Cleanroom Equipment Spare Parts
AHU Drain Pan
A custom-sized Type 304 stainless steel condensate pan with a positively sloped floor and single drain connection for compatible AHU cooling-coil sections.
- Type 304 Stainless Steel
- Positively Sloped Floor
- Single Drain Outlet
- Welded Leak-Resistant Corners
Product Introduction
The AHU drain pan collects condensate below a chilled-water or direct-expansion cooling coil and directs it toward the drain connection. Its shallow Type 304 stainless steel body uses folded perimeter walls, continuously joined corners and a formed slope that converges at one low-point sump. Four external mounting ears provide defined attachment points without placing fastener penetrations inside the wetted floor. Replacement selection is based on the clear collection area, overall envelope, rim height, outlet location and connection size of the installed air-handler section.
Key Features
Type 304 stainless steel provides a smooth corrosion-resistant wetted surface suited to routine AHU inspection and cleaning.
Folded walls and continuous corner welds keep the collection boundary clear of open seams within the condensate path.
A single side outlet and four external one-hole mounting ears create straightforward hydraulic and mechanical interfaces for replacement work.
Customer Product Concerns
Effective condensate removal requires the replacement pan to fit the coil section, remain accessible for cleaning and maintain a continuous fall to the connected drain line.
A flat or incorrectly oriented pan leaves standing water away from the drain opening.The floor geometry is formed toward a defined low-point sump and the outlet side is matched to the installed airflow-section layout.
An outlet at the wrong height, side or thread size cannot reconnect to the existing trap and drain pipe.Outlet diameter, centerline, thread form and left- or right-hand position are specified from the removed pan or equipment drawing.
Fastener holes or discontinuous corner seams inside the wetted area can create difficult-to-clean leakage paths.Mounting holes remain on external ears while the collection floor and perimeter corners use uninterrupted stainless surfaces and continuous welds.
A replacement that is too shallow or too narrow can miss coil carryover and overflow during peak dehumidification.Collection width, length, rim height and drain capacity are selected together for the actual coil face and available AHU cabinet space.
Typical Applications
Cleanroom AHU cooling-coil sectionsMake-up air unit condensate collectionDehumidification air-handler modulesReplacement drain trays for custom ventilation equipment
Technical Parameters
The following ranges describe common custom-fabricated Type 304 stainless steel drain pans for modular and replacement AHU coil sections.
| Core Material | Type 304 stainless steel pan body, mounting ears and welded drain stub |
|---|---|
| Panel Thickness | 40-100 mm nominal pan depth including the upturned perimeter rim |
| Effective Width | 300-2000 mm nominal clear condensate collection width |
| Maximum Length | Up to 3000 mm overall pan length for common sectional AHU replacements |
| Steel Facing Thickness | 1.0-1.5 mm Type 304 stainless steel sheet for typical fabricated pans |
| Core Density | Approximately 7900 kg/m³ for Type 304 stainless steel |
| Thermal Conductivity | Approximately 15 W/(m·K) for Type 304 stainless steel at 20 °C |
| Surface Finish | Smooth satin-brushed stainless surface with cleaned continuous corner welds |
| Joint Type | Folded perimeter walls with continuously welded corners and one welded male threaded drain stub |
| Customization | Available based on the intended application and operating environment. |
Available Options
Custom length, width and rim heightLeft- or right-hand drain outletAlternative outlet diameter and threadOptional closed-cell external insulation
Planning a AHU Drain Pan specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
