Air Filters and Chemical Filtration

Side-Access HEPA Filter Housing

A duct-mounted cabinet with removable side doors and a positive-pressure clamping mechanism for servicing HEPA filters from either side.

Dual-Side Service
Positive Crank Seal
Integrated Prefilter Track
Welded Weatherproof Cabinet

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Product Introduction

This housing positions HEPA or ULPA filters perpendicular to the duct and allows them to slide in from either side. A crank or lever mechanism transfers force evenly to each filter gasket, producing a repeatable seal without access from the air face. Removable gasketed doors close both service openings, and an upstream track accepts a shallow prefilter. Standing flanges, pressure taps and challenge ports simplify integration into clean manufacturing and healthcare air systems.

Key Features

Dual access doors permit service from the side with safe working clearance.

A spring-loaded crank mechanism distributes sealing pressure across each filter row.

The separate prefilter track protects the absolute filter from coarse loading.

External pressure ports support differential-pressure monitoring without opening the cabinet.

Customer Product Concerns

A ducted HEPA bank must be serviceable in a narrow plantroom while maintaining uniform gasket compression.

Only one side of the filter bank remains reachable after installation.Removable doors on both sides allow the usable service direction to be selected on site.

Hand-tightened clips apply unequal pressure around a large HEPA gasket.The crank mechanism applies coordinated sealing force across the filter row.

Coarse dust shortens expensive HEPA filter life.An integral prefilter track captures larger particles before the final filter.

A door seal leaks after repeated maintenance cycles.Square reinforced doors and high-memory perimeter gasketing maintain contact around the opening.

Typical Applications

Cleanroom air-handler final filtrationHospital supply and exhaust systemsPharmaceutical HVAC branchesLaboratory ventilationOutdoor equipment filter sections

Technical Parameters

Representative materials and dimensions for a ducted side-access HEPA housing are listed below.

Core Material	Welded galvanized or 304 stainless-steel cabinet with steel filter tracks and crank clamp
Panel Thickness	1.5–2.0 mm all-welded housing panels
Effective Width	365–3920 mm for half- to six-filter-wide assemblies
Maximum Length	Up to 3920 mm bank length in modular multi-filter arrangements
Steel Facing Thickness	1.5–2.0 mm galvanized or 304 stainless steel
Core Density	Approximately 7850 kg/m³ for galvanized-steel cabinet components
Thermal Conductivity	Approximately 45–60 W/(m·K) for galvanized-steel construction
Surface Finish	Mill-galvanized, brushed stainless steel or weather-resistant powder coat
Joint Type	Standing duct flanges, dual gasketed access doors and crank-compressed filter gasket
Customization	Available based on the intended application and operating environment.

Available Options

Galvanized or 304 stainless steelGasket- or gel-seal filter rackTwo-inch prefilter trackChallenge injection and scan ports

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