Editorial Technical Reference

HEPA Filter Housing

This page explains how HEPA Filter Housing is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A structural enclosure designed to securely hold and seal a HEPA filter within a sterile air purge system.

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Product Specifications

Technical details and manufacturing context for HEPA Filter Housing

Definition
The HEPA Filter Housing is a critical component of Sterile Air Purge systems that provides a sealed, rigid framework to contain high-efficiency particulate air (HEPA) filters. It ensures proper airflow through the filter media while maintaining sterility by preventing bypass leakage. The housing typically includes gaskets, clamping mechanisms, and pressure test ports to verify integrity. Constructed from materials such as Stainless Steel 316L, Aluminum Alloy, and EPDM gaskets, the housing is designed for demanding industrial environments. Key parameters include an operating pressure range of 1.0–1.6 MPa, operating temperature from -40 to 85°C, and a maximum leakage rate of ≤0.1% (ISO 10648-2). The housing accommodates HEPA filters with efficiency ratings of H13–H14 (EN 1822), air flow capacities of 500–2000 m³/h, and a pressure drop of ≤250 Pa at rated flow. Sealing material is EPDM, housing material is SS304 (ASTM A240), and surface finish is Ra≤0.8 μm for cleanroom applications. Dimensions range from 300×300×200 to 600×600×400 mm, with weight between 15–60 kg. Ingress protection is IP54–IP65 (IEC 60529). The housing is designed to maintain pressure differentials and prevent unfiltered air from bypassing the filter through secure sealing interfaces. It is essential to verify model-specific values and standards with the legal manufacturer or supplier before procurement. The housing is a component, not a standalone system, and its performance depends on proper installation and maintenance. Regular integrity testing and gasket replacement are necessary to ensure continued sterility and filtration efficiency. The housing is not a certified product; standards listed are for reference only.
Working Principle
The housing creates a sealed chamber around the HEPA filter element. When air flows through the system, it is forced through the filter media within the housing, which captures particles ≥0.3 microns with 99.97% efficiency. The housing maintains pressure differentials and prevents unfiltered air from bypassing the filter through secure sealing interfaces. The gaskets and clamping mechanisms ensure a tight seal, while pressure test ports allow verification of integrity. The housing is designed to operate within specified pressure and temperature ranges, and any deviation may lead to seal failure or reduced filtration performance.
Common Materials
Stainless Steel 316L, Aluminum Alloy, EPDM Gaskets
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Temperature-40–85 °COutside range seals may fail
Leakage Rate≤0.1 %Maximum allowable leakageISO 10648-2
Filter EfficiencyH13–H14H13: 99.95%, H14: 99.995%EN 1822
Air Flow Capacity500–2000 m³/hDepends on filter size
Pressure Drop≤250 PaAt rated flow
Sealing MaterialEPDMResistant to ozone and aging
Housing MaterialSS304Corrosion resistantASTM A240
Surface FinishRa≤0.8 μmFor cleanroom applications
Dimensions300×300×200–600×600×400 mmCustom sizes available
Weight15–60 kgDepends on size and material
Ingress ProtectionIP54–IP65Dust and water resistanceIEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Filter Frame
    Primary structural frame that holds the HEPA filter media in position
    Material: Stainless Steel
  • Sealing Gasket Part
    Creates an airtight seal between the filter and housing to prevent bypass leakage
    Material: EPDM or Silicone
  • Clamping Mechanism
    Securely fastens the filter in place while maintaining even pressure on gaskets
    Material: Stainless Steel
  • Pressure Test Port
    Allows for integrity testing of the filter and housing seal
    Material: Stainless Steel
  • Housing Body
    The sealed chamber around the filter; without it there is no defined air path.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Sterile Air Purge
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Aseptic Chamber Enclosure
View system integration details
Aseptic Filling Chamber
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 2.5 bar differential pressure
flow rate: Up to 5000 m³/h
temperature: -20°C to 120°C
seal integrity: 99.99% at rated pressure
Media Compatibility
✓ Pharmaceutical grade air ✓ Cleanroom HVAC systems ✓ Laboratory exhaust streams
Unsuitable: High moisture or condensing environments without proper drainage
Sizing Data Required
  • Required airflow volume (m³/h)
  • Filter dimensions (L x W x D)
  • System operating pressure (bar)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Filter media bypass
Cause: Gasket degradation or improper sealing due to thermal cycling, chemical exposure, or installation errors, allowing unfiltered air to bypass the filter media.
Structural fatigue or cracking
Cause: Cyclic pressure differentials, vibration from adjacent equipment, or material stress from improper handling, leading to housing integrity compromise.
Maintenance Indicators
  • Visible air leakage or dust accumulation around housing seams or gaskets
  • Abnormal increase in pressure drop across the filter beyond manufacturer specifications
Engineering Tips
  • Implement regular gasket inspection and replacement schedule using compatible materials resistant to operational chemicals and temperature ranges
  • Install vibration isolators and ensure proper housing support to minimize mechanical stress, coupled with periodic torque checks on fasteners

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 29463: High-efficiency filters and filter media for removing particles in air ANSI/ASHRAE 52.2: Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size EN 1822: High efficiency air filters (EPA, HEPA and ULPA)

Quoted from the published standard.

Manufacturing Precision
  • Frame squareness: +/-0.5 mm per meter
  • Gasket seating surface flatness: 0.2 mm across entire perimeter
Quality Inspection
  • Pressure decay leak test (per ISO 29463-5)
  • Particle counting efficiency test (per EN 1822-3)

Manufacturers of HEPA Filter Housing

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

HY Cleanroom Technology Co. Ltd.
Suzhou, Jiangsu, CN
Also makes: Fan Filter Unit (FFU), Filtration Chamber, Filter Unit and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
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Frequently Asked Questions

What is the operating pressure range of the HEPA Filter Housing?

The operating pressure range is 1.0–1.6 MPa. Above 1.6 MPa, seals may fail. Always verify the exact range for your specific model.

What filter efficiency grades does the housing support?

The housing supports HEPA filters with efficiency grades H13 (99.95%) and H14 (99.995%) according to EN 1822. The actual filter grade must be selected based on your application requirements.

What materials are used in the housing construction?

The housing is typically made of Stainless Steel 316L or Aluminum Alloy, with EPDM gaskets. The housing material is specified as SS304 (ASTM A240) for corrosion resistance. Confirm material compatibility with your process.

How is the housing's integrity verified?

The housing includes pressure test ports for integrity testing. The maximum allowable leakage rate is ≤0.1% as per ISO 10648-2. Regular testing is recommended to ensure no bypass leakage.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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