Three-quarter view of a stainless room-side HEPA filter retaining clamp

Cleanroom Installation Accessories

HEPA Filter Clamp

A stainless swing-bolt HEPA retaining clamp with a broad padded pressure shoe for applying controlled sealing force in room-side filter housings.

Swing-Bolt Adjustment
Broad Equi-Bearing Shoe
Tool-Free Hand Knob
Padded Stainless Contact

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Product Introduction

The clamp pivots away from the filter edge during change-out and swings back into its operating position before compression is applied with the hand knob. Its broad stainless pressure shoe spreads load across the filter frame, while a thin silicone pad protects the contact face. The two-hole base fixes the mechanism to a terminal housing or holding frame without introducing loose service parts.

Key Features

The captured swing bolt remains attached to the pivot base when released for filter removal.

A broad pressure shoe distributes retention force over more of the filter-frame edge.

The four-lobed knob permits room-side tightening without a separate wrench.

A bonded silicone pad prevents direct metal contact at the loaded surface.

Brushed stainless construction presents smooth exposed surfaces for routine wiping.

Customer Product Concerns

HEPA retainers must deliver repeatable compression without damaging the filter frame, creating loose service parts or obstructing room-side replacement.

Narrow fasteners can concentrate force and distort a light-gauge filter frame.The rectangular equi-bearing shoe spreads the applied load over a broad contact area.

Loose nuts and clips are difficult to manage during overhead filter changes.The bolt and pressure arm remain captured by the fixed pivot bracket throughout servicing.

Tool-dependent clamps lengthen room-side replacement and can lead to inconsistent tightening.The large four-lobed hand knob provides direct, visible compression adjustment.

Bare metal pressure faces may scratch coated or anodized filter frames.A bonded black silicone pad separates the stainless shoe from the filter contact surface.

Typical Applications

Room-side replaceable HEPA terminal housingsGel-seal and gasket-seal filter holding framesCleanroom ceiling filter modulesPharmaceutical exhaust filter housingsLaboratory and healthcare high-efficiency filter banks

Technical Parameters

Typical construction and dimensional ranges for a stainless room-side HEPA filter retaining clamp are listed below.

Core Material	304 stainless-steel pivot bracket, swing bolt, hand knob and pressure shoe with silicone pad
Panel Thickness	0.8-2.0 mm compatible HEPA filter frame wall thickness
Effective Width	40-100 mm pressure-shoe contact width
Maximum Length	Up to 160 mm overall clamp length
Steel Facing Thickness	2.0-4.0 mm nominal bracket and shoe thickness
Core Density	Approximately 8000 kg/m³ for 304 stainless steel
Thermal Conductivity	Approximately 14-16 W/(m·K) for 304 stainless steel
Surface Finish	Brushed or passivated stainless steel with a matte black silicone contact pad
Joint Type	Pivoting captured swing bolt with threaded hand knob and padded equi-bearing shoe
Customization	Available based on the intended application and operating environment.

Available Options

304 or 316L stainless-steel constructionM6, M8 or M10 swing-bolt sizeSilicone or EPDM contact padPressure-shoe width matched to the filter frameMounting-hole pattern matched to the terminal housing

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