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Leak testing of components for household appliances and water and gas systems
Technical Guide to Leak Testing for Components Used in Household Appliances, Including Water Heaters, Air Conditioning Systems, Meters, Valves, Hydraulic Connections, and LP Gas Devices. Learn about leak rates, testing methods using air, helium, or hydrogen, and recommended equipment to ensure safety and efficiency.
SPECIALIZED TECHNICAL GUIDE
Selection of leak tests for household appliances and hydraulic systems
Components in household appliances and water or gas systems require reliable leak testing to ensure operational safety and regulatory compliance. From rapid air testing during production to the detection of micro-leaks using helium or hydrogen in heat exchangers and gas systems, this guide helps you identify the appropriate method, acceptable leak rate, and ideal equipment for each application.
| Component / Application | Reference leak (Criteria) |
Recommended Method | Recommended Equipment |
|---|---|---|---|
Leak test for air conditioning coupler
Technical description
A connection component in HVAC systems that requires a high level of airtightness to prevent refrigerant leakage.
|
1.0×10-6 Pa・m³/s | Helio | LDS3000 |
Leak Test for Air Conditioning Heat Exchangers
Technical description
A key component in thermal systems that transfers heat between fluids without mixing them.
|
1.0×10-6 Pa・m³/s | Air / Helium | LDS3000 / LS-R902 |
Leak test for cascade-type pump
Technical description
A pump used in hydraulic systems that requires leak control to maintain efficiency.
|
5 mL/min | Air | LS-R902 / LS-R700 |
Leak test for gas meter
Technical description
A device that measures gas consumption and requires sealing to prevent dangerous leaks.
|
0.1 mL/min | Air | LS-R700 / LS-1866 |
Leak Test for Portable Gas Stove Regulators
Technical description
It monitors gas pressure in portable stoves, requiring a high level of safety and airtightness.
|
0.5 mL/min | Air | LS-R902 / LS-R700 |
Leak test for water heater
Technical description
A device that heats water for domestic or industrial use and requires secure connections.
|
2 mL/min | Air | LS-R700 / LS-1866 |
Leak test for water purifier cartridges
Technical description
A filter element that must prevent leaks to ensure water quality.
|
5 mL/min | Air | LS-R700 / LS-1866 |
Leak test for water meters
Technical description
A device that measures water consumption and must be sealed to prevent external leaks.
|
1 mL/min | Air | LS-R700 / LS-1866 |
Leak test for water meter cover
Technical description
Protective cover that prevents the entry of contaminants and leaks.
|
0.15 mL/min | Air | LS-R902 / LS-R700 |
Leak test for a drinking water check valve
Technical description
A valve that prevents backflow in drinking water systems.
|
0.2 mL/min | Air | LS-R700 / LS-1866 |
Leak test for water connections
Technical description
Fittings used in piping systems that require an airtight seal to prevent leaks.
|
0.1 mL/min | Hydrogen | LDS3000AQ |
Sprinkler leak test
Technical description
A fire suppression system that distributes water in the event of an emergency.
|
5.0×10-5 Pa・m³/s | Air / Helium | LDS3000 / LS-R902 |
Leak test for a toilet tank
Technical description
A water tank used in restrooms that is designed to prevent water leaks.
|
3 mL/min | Hydrogen | LDS3000AQ |
Leak test for heat exchanger
Technical description
A device that transfers heat between fluids in industrial or domestic processes.
|
5.0×10-7 Pa・m³/s | Air / Helium | LDS3000 / LS-R902 |
Leak Test for Heat Exchanger (Water Heater)
Technical description
A specific heat exchanger used in heaters that requires high-precision leak testing.
|
8.3×10-4 Pa・m³/s | Helio | LDS3000AQ |
Leak test for a toilet drain tank
Technical description
A component that stores and discharges water in plumbing systems.
|
8.5 mL/min | Air | LS-R700 / LS-1866 |
Leak test for portable water heater
Technical description
Compact equipment that requires proper sealing for safe operation.
|
0.5 mL/min | Air | LS-R902 / LS-R700 |
Leak test for EcoCute components
Technical description
An efficient heat pump system that uses CO₂ as a refrigerant.
|
30 Pa | Air | LS-R700 / LS-1866 |
Leak test for LP gas safety device
Technical description
A device that controls gas flow and prevents dangerous leaks.
|
0.1 mL/min | Air | LS-R902 / LS-R700 |
LP Gas Tank Leak Test
Technical description
Liquefied gas container requiring high-precision leak testing.
|
1.0×10-4 Pa・m³/s | Helio | LDS3000 |
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