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Air Filters and Chemical Filtration
Gasket-Seal HEPA Filter
A rigid HEPA panel fitted with a closed-cell perimeter gasket that seals against a flat housing flange under controlled compression.
- Closed-Cell Compression Gasket
- Flat-Flange Compatibility
- Simple Visual Inspection
- Replaceable Seal Option
Product Introduction
The gasket-seal HEPA filter uses a flat closed-cell neoprene, EPDM or polyurethane gasket bonded to the upstream or downstream flange of an anodized-aluminum, galvanized or wood cell. Retaining clips or a clamping mechanism compress the gasket uniformly against the housing's flat sealing face. The mini-pleat or separator-style HEPA pack is potted independently into the cell, while dovetailed or continuously poured gasket corners prevent leakage at the perimeter joints. This familiar dry-seal arrangement suits built-up banks and terminal frames with accessible, flat mating surfaces.
Key Features
A broad flat gasket face is easy to inspect for dirt, tears and incomplete contact before installation.
Dovetailed or seamless corners maintain continuity around the complete perimeter.
Upstream and downstream gasket positions accommodate different filter-bank loading directions.
Customer Product Concerns
Dry gasket seals depend on clean mating surfaces and uniform compression around every side of the filter frame.
Uneven clamp force leaves one corner of the filter unsealed.A resilient full-width gasket and distributed retaining points maintain perimeter compression.
Open-cell foam allows leakage through the gasket body.Closed-cell neoprene, EPDM or polyurethane provides a low-permeability compression barrier.
Butt-jointed gasket corners separate during filter handling.Dovetailed interlocking corners or a continuously poured gasket remove straight-through corner gaps.
Repeated replacement leaves adhesive residue and a distorted seal face.A replaceable preformed gasket and clean flat flange simplify inspection and renewal.
Typical Applications
Built-up HEPA filter banksFront-access air-handling unitsCleanroom terminal housingsHospital and laboratory ventilationPharmaceutical supply and return systems
Technical Parameters
Typical construction ranges for a compression gasket-seal HEPA filter are listed below.
| Core Material | Mini-pleated microglass or membrane HEPA media; separator pack available for full-depth cells |
|---|---|
| Panel Thickness | 70-120 mm mini-pleat panel or 150-292 mm separator cell depth |
| Effective Width | 305-610 mm modular face width |
| Maximum Length | Up to 1220 mm for reinforced mini-pleat panels |
| Steel Facing Thickness | 0.40-0.80 mm galvanized or stainless-steel protective faceguard |
| Core Density | Approximately 85-155 kg/m³ nominal assembled media-pack density |
| Thermal Conductivity | Approximately 0.034-0.041 W/(m·K) for dry gasketed microglass filter media |
| Surface Finish | Anodized aluminum, galvanized steel or sealed wood with black or white closed-cell gasket |
| Joint Type | Closed-cell perimeter gasket compressed against a clean flat housing flange |
| Customization | Available based on the intended application and operating environment. |
Available Options
H13, H14 or 99.97-99.999% at 0.3 µmNeoprene, EPDM or polyurethane gasketUpstream, downstream or dual-face gasketDovetailed preformed or seamless poured corners
Planning a Gasket-Seal HEPA Filter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
