Air Filters and Chemical Filtration

Equal-Pressure Filter Clamping Assembly

A stainless swing-bolt and bearing-bar mechanism that applies balanced compression to a filter gasket while moving clear for element removal.

Uniform Gasket Compression
Swing-Clear Service
Tool-Controlled Adjustment
Stainless Hardware

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Product Introduction

This assembly secures box-style HEPA, ULPA or compact filters against a flat sealing flange. Threaded swing bolts pull a rigid equal-bearing bar toward the frame so the load is spread along the filter edge rather than concentrated at isolated clips. Captive pivots keep components attached during maintenance, and the bar swings or slides away from the opening when loosened. Stainless construction suits repeated use in clean and corrosive air systems.

Key Features

The bearing bar spreads clamp force along the filter edge.

Threaded adjustment accommodates small differences in gasket and frame depth.

Captive pivots prevent loose hardware from falling into the air system.

The assembly moves outside the filter envelope for unrestricted removal.

Customer Product Concerns

Uneven or improvised clamps can over-compress one gasket corner while leaving another side open to bypass.

Point clips leave low-pressure areas along a long filter edge.A rigid bearing bar distributes load over a wider sealing line.

Clamp parts are lost during overhead filter replacement.Captive bolts and pivots remain attached to the holding frame.

Different filter depths require new retaining hardware.Threaded travel allows the assembly to suit a defined range of frame and gasket heights.

The clamp blocks the filter as technicians pull it forward.Swing-clear geometry opens the complete removal path after release.

Typical Applications

Gasket-seal HEPA holding framesSide-access filter housingsBuilt-up absolute filter banksCleanroom terminal boxesIndustrial compact-filter racks

Technical Parameters

Typical material and dimensional ranges for an equal-pressure filter clamp are shown below.

Core Material	304 stainless-steel swing bolts, pivots, equal-bearing bar and captive fasteners
Panel Thickness	2.0–4.0 mm formed bearing bar and mounting plates
Effective Width	150–610 mm bearing length per filter edge
Maximum Length	Up to 650 mm overall clamp assembly length
Steel Facing Thickness	2.0–4.0 mm stainless bearing and bracket components
Core Density	Approximately 8000 kg/m³ for 304 stainless-steel parts
Thermal Conductivity	Approximately 14–17 W/(m·K) for passivated stainless clamp hardware
Surface Finish	Passivated stainless steel with smooth deburred edges
Joint Type	Captive swing-bolt pivot with threaded compression adjustment and equal-bearing retainer
Customization	Available based on the intended application and operating environment.

Available Options

Single- or dual-bolt bearing barHand knob or tool-operated nutFrame-mounted or housing-mounted bracketAlternate travel for different filter depths

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