How to check the air conditioning refrigerant leaking

1。 Fluorescent leak detection, namely using fluorescent leak detection agent in the uv/blue light leak detection will announce the principle of bright yellow green, for all kinds of system of fluid leakage testing, but everything using PAG lubricant used in the early years of the compatibility with everything is poorer, because the leaks to find oil stains, fluorescent leak detection agent also lost. 2. Soapy water leak detection, that is, to the system of filling the pressure a 0. 98 - 1. 96 mpa of nitrogen, and then the system each part coated with soap and water, bubble point is the leakage point. 3. Halogen leak detection, after will leak detection lamp lighting, the air on the handheld halogen lamp tube line close to the refrigeration system, when the pipeline leakage, flame color becomes purple blue, using this way to leak detection is open, the more risk, and flame combined with refrigerant can produce harmful gases, moreover also difficult to accurately locating funnelled. 4. Electronic leak detection, the probe will leak detection equipment to the possible leakage parts move, announced the alarm if leak detection equipment, that everything I say here. 5. Section pressure test, that is, making special joint jig, and pressure testing of equipment, pipe separation, this is a more reliable leak detection method.

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