Three-quarter view of a dark EPDM pass box door gasket with one joined end

Cleanroom équipement pièces de rechange

Z Pass Box Door Gaskets par

A continuous rounded EPDM bulb gasket that restores controlled compression around a pass box door perimeter.

Continuous Perimeter Seal
Compressible Hollow Bulb
Rounded Corner Geometry
Cleanable EPDM Surface

Introduction de produit

The pass box door gasket forms the compressible perimeter interface between a transfer-chamber door and frame. Its hollow EPDM bulb deflects under latch pressure to accommodate small surface variation, while the carrier profile locates the seal along the mounting edge. Rounded corners reduce local stress and a single joined perimeter limits leakage paths. Replacement dimensions should match the existing groove or carrier, bulb height, compression allowance, corner radius and door closing force.

Key Features

A hollow bulb provides controlled recovery through repeated door cycles.

The continuous rectangular perimeter limits unnecessary joints in the sealing path.

Rounded corners avoid sharp folds that can restrict compression.

Dark EPDM provides a durable surface for routine cleanroom wipe-down.

Préoccupations du client produit

Seal performance depends on matching the profile and applying even compression around the complete door perimeter.

An undersized bulb leaves gaps where the door or frame is slightly uneven.Bulb height and compression range are selected to maintain contact around the full perimeter.

Excessive compression increases latch force and permanently deforms the seal.The installed gap is matched to the profile so the bulb works within its normal deflection range.

Poor corner forming causes kinks and localized leakage.Rounded corners preserve a consistent hollow section and smooth contact line.

An incompatible carrier profile will not remain seated during cleaning and door movement.The base geometry is matched to the existing groove, adhesive bed or mechanical retainer.

Les applications typiques

Static pass box doorsDynamic transfer chamber doorsMaterial hatch gasket replacementCleanroom cabinet perimeter sealing

Paramètres techniques

Typical material and dimensional ranges for pass box EPDM bulb gaskets are shown below.

Matériaux de base	Closed-skin EPDM elastomer with hollow compressible bulb and integral carrier
Panneau épaisseur	2-6 mm nominal carrier-wall thickness
Largeur effective	10-35 mm nominal installed profile width
Longueur maximale	Up to 6000 mm continuous cut length before joining
Acier face épaisseur	0.3-0.8 mm optional embedded steel carrier thickness
Densité Core	1050-1250 kg/m³ for solid EPDM profile sections
Conductivité thermique	0.20-0.30 W/(m·K) for EPDM elastomer
surface finie	Smooth dark-charcoal non-marking extruded EPDM skin
Type joint	Single joined rectangular loop with rounded corners and hollow bulb-on-carrier cross-section
Customisation	Disponible en fonction de l'application prévue et de l'environnement d'exploitation.

Options disponibles

Alternative bulb diameterAdhesive-backed or push-fit carrierCustom corner radiusFactory-spliced perimeter loop

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