Leak test

Everything You Need to Know About Industrial Leak Tests

How do you ensure the accuracy of the leak measurement?

LF Technologies uses high-precision differential pressure sensors and mass flow meters. Our control software processes the data to minimize the impact of ambient temperature fluctuations and improve the reliability of the results.

Do your test benches allow equipment to be tested in accordance with ISO 5208?

Yes. Our test benches can be designed to perform leak and pressure resistance tests in full compliance with the requirements of ISO 5208 (or any other standard specific to the product being tested). The test bench controller is configured to strictly apply the test protocols, pressure holding times, and acceptance criteria (leak rates A, B, C, etc.) defined by the standard for your valves.

Can a leak test be integrated into a production line?

Absolutely. As a designer of custom machinery, we develop test modules and automated stations that integrate into your production lines for efficient component inspection.

Do you offer a calibration service for your machines?

Yes. As part of our support services, we provide maintenance and periodic recalibration of the sensors. This service is essential to ensure the validity of your readings during your quality audits.

Test methods and technical specifications

The choice of testing technology depends on the operating fluid, the pressure level, and the acceptable leak rate. LF Technologies specializes in the two main approaches to verifying the quality and leak-tightness of your components:

1. Hydrostatic test (Water / Oil / Special fluids)

This is the standard method for structural strength tests and leak tests on building envelopes. Because the liquid is incompressible, pressure can be safely increased to verify the mechanical integrity of valve bodies and welds.

• Pressure: Adjusted to meet your specific needs and the capabilities of the pressure generators.
• Control: Our test benches provide automated control of pressurization cycles to ensure measurement stability.

2. Pneumatic test (Air / Nitrogen)

This method is preferred for detecting leaks in components that must remain clean and dry (plumbing fixtures, gas lines).

• Technologies: Differential pressure drop or mass flow measurement.
• Sensitivity: the detection threshold defined based on your test protocol, your acceptance criteria, and the type of component being tested.
• Software: Our control interface allows you to configure test sequences and analyze results under controlled measurement conditions.

3. Machine Specifications and Traceability

• Design: Stainless steel frame and hydraulic circuits for long-lasting durability in industrial environments.
• Safety: Safety: Secure test chambers with protective covers and enclosures.
• Software: Controlled via a touchscreen HMI developed in-house, with automatic recording of cycles (pressure curves, hold times, leak readings).
• Data: Export reports in standard formats (Excel, PDF, CSV) with the option to store them in an SQL database.

4. Compliance with standards

Our equipment allows us to validate your products in accordance with international standards such as ISO 5208 and ASTM, as well as protocols specific to your industry.