Test Chamber / Seal Fixture for Leak Testing Modules

Product Specifications

Technical details and manufacturing context for Test Chamber / Seal Fixture

Definition

The Test Chamber / Seal Fixture is a critical part of a Leak Testing Module, designed to securely hold and seal the test specimen (e.g., a part, assembly, or container) during leak detection procedures. It creates an isolated volume, allowing the module to apply pressure, vacuum, or tracer gas and accurately measure any leakage, ensuring product quality and safety standards are met. The fixture is typically constructed from stainless steel or aluminum alloy, with Viton or EPDM seals to ensure reliable sealing across a range of operating conditions. Key parameters include internal dimensions from 300 to 800 mm (W×H×D), operating pressure from 1.0 to 1.6 MPa, and a maximum leak rate of 0.01 mbar·L/s (per ISO 20485). Sealing force is adjustable from 5 to 20 kN via pneumatic or hydraulic actuators, and the clamping stroke ranges from 50 to 150 mm. The fixture operates within a temperature range of -40°C to 85°C (per IEC 60068-2-14) and is rated IP54 to IP65 for dust and water protection. Seal material hardness is specified as 60 to 90 Shore A (per ASTM D2240), and material grades for stainless steel components are 304 or 316L (per ASTM A240). Cycle time for automated testing is 10 to 30 seconds, and the electrical supply is 24 V DC ±10%. Weight varies from 50 to 200 kg depending on size and material. Custom sizes are available upon request. The fixture is designed for integration into automated leak testing systems, with interfaces for sensors and control. It is essential to verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges and may vary for specific applications.

Working Principle

The fixture mechanically clamps or seals against the test specimen to isolate a specific volume (the test chamber). This sealed volume is then connected to the leak testing system, which introduces a test medium (like pressurized air or helium). Sensors monitor pressure decay or gas concentration over time to detect and quantify any leaks from the specimen. The sealing force is adjustable to ensure a proper seal without damaging the specimen, and the clamping stroke accommodates different part sizes. The fixture's design allows for precise control of the test environment, enabling accurate leak detection.

Common Materials

Stainless Steel, Aluminum Alloy, Viton/EPDM Seals

Technical Parameters

Parameter	Typical range	Notes & selection driver
Internal Dimensions (W×H×D)	300–800 mm	Custom sizes available upon request
Operating Pressure	1.0–1.6 MPa
Leak Rate	≤0.01 mbar·L/s	Helium mass spectrometer testISO 20485
Sealing Force	5–20 kN	Adjustable via pneumatic or hydraulic actuator
Temperature Range	-40–85 °C	For environmental testingIEC 60068-2-14
Seal Material Hardness	60–90 Shore A	NBR or FKMASTM D2240
Clamping Stroke	50–150 mm	Pneumatic or hydraulic
Cycle Time	10–30 s	For automated testing
Electrical Supply	24 ±10% V DC	For sensors and control
IP Rating	IP54–IP65	Dust and water protectionIEC 60529
Weight	50–200 kg	Depends on size and material
Material Grade	304/316L	Stainless steel for corrosion resistanceASTM A240

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

Clamping Mechanism
Applies force to hold the test specimen securely in place and compress the sealing gaskets.

Material: Steel
Sealing Gasket/O-Ring Part
Creates a leak-tight seal between the fixture body and the test specimen.

Material: Viton or EPDM
Pressure Port Part
Connection point for the leak testing system to introduce test medium (air, gas) into the sealed chamber.

Material: Stainless Steel
Fixture Body
The block that forms the sealed volume and carries the clamp, the gasket and the port.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Test Chamber / Seal Fixture.

Applied To / Applications

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

Leak Testing Module

View system integration details

Manufacturers of Test Chamber / Seal Fixture

Manufacturer profiles associated with Test Chamber / Seal Fixture.

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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 a Test Chamber / Seal Fixture?

It is a component of a leak testing module that holds and seals a test specimen to create an isolated volume for detecting leaks. It allows the module to apply pressure, vacuum, or tracer gas and measure leakage.

What materials are used in the construction?

Common materials include stainless steel and aluminum alloy, with Viton or EPDM seals. Material grades for stainless steel are typically 304 or 316L, but verify with the manufacturer.

What are the typical operating parameters?

Operating pressure ranges from 1.0 to 1.6 MPa, leak rate is ≤0.01 mbar·L/s, temperature range is -40°C to 85°C, and sealing force is 5-20 kN. These are reference ranges; confirm for your model.

How is the fixture integrated into a leak testing system?

The fixture is connected to the leak testing system via ports for test medium and sensors. It is designed for automated testing with cycle times of 10-30 seconds and electrical supply of 24 V DC.

Data Basis

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

Preliminary Technical Classification

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pressure:	Vacuum to 10 bar (145 psi)
other spec:	Flow Rate: 0-100 L/min, Slurry Concentration: Not applicable (sealed environment)
temperature:	-40°C to +150°C

Test Chamber / Seal Fixture

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards