Leak testing of industrial components and fluid control systems
Technical guide to leak testing for components used in various industries, including compressors, tanks, pumps, coolers, and control valves. Review leak rates, air and helium testing methods, and recommended equipment to ensure operational efficiency, safety, and reliability in industrial systems.
Selection of leak tests for industrial applications
In industrial settings, leak detection is essential for maintaining system efficiency, preventing failures, and complying with safety standards. From air testing for in-line validation to helium-based micro-leak detection in critical components such as valves and pressurized tanks, this guide helps you identify the appropriate method, acceptable leak rate, and ideal equipment for each application.
| Component / Application | Leak Reference (Criteria) | Recommended Method | Recommended Equipment |
|---|---|---|---|
Leak test for an air compressor
Technical description
Equipment that compresses air for industrial applications requires leak detection to maintain efficiency and pressure.
|
0.7 mL/min | Air / Helium | LS-R740ZL / LS-R740WL / LDS3000AQ |
Air tank leak test
Technical description
A pressurized tank that stores compressed air requires high-precision leak testing.
|
1.0×10-4 Pa・m³/s | Helium | LDS3000 |
Leak test for oil cooler
Technical description
A heat exchanger that regulates the temperature of the oil in mechanical systems.
|
1 mL/min | Air | LS-R902 / LS-R700 |
Leak test for oil pump
Technical description
A pump used to circulate oil in industrial or automotive systems.
|
1 mL/min | Air | LS-R700 / LS-1866 |
Leak test for high-pressure valve
Technical description
Valve designed to operate under high-pressure conditions; requires a secure seal.
|
0.2 mL/min | Air | LS-R902 / LS-R700 |
Leak test for check valve
Technical description
A valve that allows flow in only one direction, preventing unwanted backflow.
|
1.0×10-6 Pa・m³/s | Helium | LDS3000 |
Leak test for solenoid valve
Technical description
An electrically controlled valve that regulates the flow of fluids or gases.
|
0.5 mL/min | Air | LS-R902 / LS-R700 |
Leak test for a three-way valve
Technical description
A valve that allows the flow to be redirected between three different connections.
|
0.3 mL/min | Air | LS-R902 / LS-R700 |
Leak test for a hydraulic valve
Technical description
A valve used in hydraulic systems to control fluid pressure and flow.
|
2 mL/min | Air | LS-R902 / LS-R700 |
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