Cleanroom Installation Accessories

Pipe Penetration Seal

A bolted EPDM compression seal that closes the annular gap between a service pipe and a cleanroom wall sleeve.

Radial EPDM Compression
Stainless Pressure Plates
Six-Point Bolt Loading
Replaceable Mechanical Seal

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Product Introduction

The pipe penetration seal uses a thick annular EPDM element between two circular stainless pressure plates. Even tightening of six perimeter fasteners compresses the elastomer axially and drives it radially against the service pipe and sleeve bore. The removable assembly creates a controlled, cleanable transition without permanently bonding the pipe into the wall opening.

Key Features

Axial plate compression expands the EPDM ring radially against both sealing surfaces.

Six evenly spaced fasteners distribute loading around the circumference.

Stainless plates provide smooth exposed faces suitable for controlled interiors.

A mechanical assembly can be inspected, retightened or replaced when service arrangements change.

Customer Product Concerns

The annular gap around a pipe can leak air, collect residue and transmit vibration unless it is closed with a compatible flexible seal.

Irregular bolt loading leaves local leakage paths around the pipe.Six equally spaced fasteners apply controlled circumferential compression.

Rigid grout cannot accommodate pipe movement or vibration.The EPDM annulus retains elastic contact with the pipe and sleeve surfaces.

Permanent sealants complicate later pipe replacement.The bolted pressure-plate assembly can be released and removed for service.

Rough exposed filler is difficult to wipe clean.Smooth stainless face plates create defined, accessible room-side surfaces.

Typical Applications

Cleanroom process-pipe penetrationsUtility line wall sleevesConduit and service passagesHygienic partition transitionsEquipment service connections

Technical Parameters

Typical construction ranges for a stainless-plate EPDM pipe penetration compression seal are listed below.

Core Material	Black EPDM annular seal with 304 or 316 stainless compression plates and fasteners
Panel Thickness	40-200 mm compatible wall and sleeve assembly thickness
Effective Width	20-250 mm pipe opening diameter
Maximum Length	Up to 350 mm overall seal outside diameter
Steel Facing Thickness	2.00-6.00 mm stainless compression-plate thickness
Core Density	Approximately 1100-1300 kg/m³ for EPDM elastomer
Thermal Conductivity	Approximately 0.20-0.30 W/(m·K) for EPDM
Surface Finish	Black molded EPDM with brushed or satin stainless pressure plates
Joint Type	Bolted axial compression producing radial pipe-to-sleeve sealing
Customization	Available based on the intended application and operating environment.

Available Options

EPDM or silicone elastomer304 or 316 stainless hardwareSplit-ring retrofit constructionCustom pipe and sleeve diameters

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