Sealed Enclosure for Calibration Chambers

Product Specifications

Technical details and manufacturing context for Sealed Enclosure

Definition

The Sealed Enclosure is a critical component of the Integrated Calibration Chamber, designed to create and maintain a precisely controlled internal environment. It protects sensitive calibration instruments from external contaminants, temperature fluctuations, humidity variations, and electromagnetic interference, ensuring accurate and repeatable calibration measurements. The enclosure is manufactured from materials such as stainless steel (e.g. 304, 316), aluminum alloy, or specialty polymers like PTFE and PEEK, selected based on application requirements. It features a leak rate of ≤1×10⁻⁹ Pa·m³/s as verified by helium mass spectrometer testing per ISO 20485, ensuring high hermeticity. The internal volume ranges from 0.5 to 5 liters, and the operating temperature spans -40 to 85°C, with extended ranges possible using special seals. The enclosure achieves an IP rating of IP67 to IP68 per IEC 60529, providing dust-tight and immersion protection. Wall thickness varies from 2 to 5 mm, affecting mechanical strength and thermal conductivity, while surface finish is Ra 0.8–1.6 μm per ISO 4287 to minimize particle retention. Weight ranges from 1 to 10 kg depending on size and material thickness. Pressure rating is 0.1 to 1.0 MPa, with higher ratings possible in reinforced designs. Electrical connectors include hermetic feedthroughs with 8 to 24 pins for signal and power. The enclosure utilizes gaskets, seals, and specialized joining techniques to create an airtight, sometimes inert gas-filled barrier. It may incorporate viewports, feedthroughs, and access ports that maintain seal integrity while allowing necessary functionality. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The enclosure achieves hermetic sealing through the use of gaskets, seals, and specialized joining techniques such as welding or brazing. These methods create an airtight barrier that prevents the ingress of contaminants and the egress of internal gases. The enclosure may be filled with an inert gas to further stabilize the internal environment. Viewports allow visual inspection, feedthroughs enable electrical connections, and access ports permit maintenance, all designed to preserve seal integrity. The sealing effectiveness is quantified by a helium mass spectrometer leak test, with a maximum leak rate of 1×10⁻⁹ Pa·m³/s per ISO 20485. The enclosure's design ensures that all penetrations maintain the required level of hermeticity, providing a controlled environment for sensitive calibration components.

Common Materials

Stainless Steel (e.g., 304, 316), Aluminum Alloy, Specialty Polymers (e.g., PTFE, PEEK)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Internal Volume	0.5–5 L	Select based on component size and required air gap.
Leak Rate	≤1×10⁻⁹ Pa·m³/s	Helium mass spectrometer test; lower is better for hermeticity.ISO 20485
Operating Temperature	-40–85 °C	Extended range available with special seals.
IP Rating	IP67–IP68	Dust-tight and protected against immersion.IEC 60529
Material	316L	Stainless steel for corrosion resistance.ASTM A240
Wall Thickness	2–5 mm	Affects mechanical strength and thermal conductivity.
Surface Finish	Ra 0.8–1.6 μm	Smoother finish reduces particle retention.ISO 4287
Weight	1–10 kg	Depends on size and material thickness.
Pressure Rating	0.1–1.0 MPa	Internal pressure capability; higher with reinforced design.
Electrical Connector	8–24 pins	Hermetic feedthroughs for signal/power.

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

Main Body/Casing Part
Primary structural frame providing the sealed volume.

Material: Stainless Steel or Aluminum
Sealing Gasket/O-Ring Part
Creates the airtight seal between mating surfaces (e.g., door and frame).

Material: Silicone, Viton, EPDM, or Metal
Access Door/Hatch Part
Removable panel for installing, maintaining, or accessing internal components while maintaining seal when closed.

Material: Same as Main Body
Electrical Feedthrough
Hermetically sealed connector allowing power/signal cables to pass into the enclosure without breaking the seal.

Material: Stainless Steel, Glass, or Ceramic
Viewport Window Part
Optically transparent, sealed window for visual inspection of internal components.

Material: Tempered Glass or Polycarbonate

Applied To / Applications

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

Integrated Calibration Chamber

View system integration details

Manufacturers of Sealed Enclosure

Manufacturer profiles associated with Sealed Enclosure.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the purpose of the Sealed Enclosure?

The Sealed Enclosure provides a controlled environment for sensitive calibration components, protecting them from contaminants, temperature changes, humidity, and electromagnetic interference to ensure accurate measurements.

What materials are available for the enclosure?

Materials on file include stainless steel (e.g., 304, 316), aluminum alloy, and specialty polymers such as PTFE and PEEK. The choice depends on application requirements like corrosion resistance and weight.

How is hermeticity verified?

Hermeticity is verified using a helium mass spectrometer leak test, with a maximum leak rate of 1×10⁻⁹ Pa·m³/s as per ISO 20485. This test ensures the enclosure meets the specified seal integrity.

What are the operating temperature and IP ratings?

The standard operating temperature range is -40 to 85°C, with extended ranges possible using special seals. The enclosure achieves an IP rating of IP67 to IP68 per IEC 60529, providing dust-tight and immersion protection.

Data Basis

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

Preliminary Technical Classification

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pressure:	0 to 2 bar absolute
other spec:	IP68/NEMA 6P ingress protection, 0% particulate ingress
temperature:	-40°C to +85°C

Sealed Enclosure

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards