Plant valves are key components essential to industrial production, used to control the flow of fluids (gases or liquids). However, valves often suffer from leakage failures due to prolonged use, improper operation or untimely maintenance.Valve leakage will not only lead to media waste, environmental pollution, but also may cause safety accidents. Therefore, it is critical to detect valve leaks in a timely and effective manner.
Imagine if a valve in a chemical plant leaks toxic gas, it will pose a serious threat to the health of people and the environment. This fully illustrates the importance of valve leakage detection.
Battery Pack Safety Valve Gas Flow Test Case
Ⅰ. Valve leakage detection methods in detail
- Visual Inspection: This is the simplest and most direct method. Check the appearance of the valve for signs of leakage, such as dripping, seepage, or liquid residue. This method is suitable for detecting larger leaks, but is not useful for small leaks.
- Auditory Inspection (AI): Determine whether there is a leak by listening for unusual hissing, dripping, etc. near the valve. This method is suitable for detecting gas leaks, but is not effective for liquid leaks.
- Smear Method: Apply a foaming agent, such as soap and water, to the valve connections or leak-prone areas and observe whether bubbles are generated. If there are bubbles, it indicates that there is a leak. This method is simple and easy to use, but can only detect larger leaks.
- Pressure Decay Method (PDM): Close the valve, then apply some pressure to one side of the valve and observe if the pressure drops. If the pressure drops, the valve is leaking. This method is suitable for detecting leaks in closed systems.
- Flow Measurement Method (FMM): Determine the size of the leak by measuring the flow rate of the leaking medium. This method can quantitatively detect leaks, but requires a specialized gas flow detector (e.g., Precision Engineering JC-LM5008).
- Tracer Gas Method (TGM): A small amount of tracer gas (e.g. helium) is added to the medium and a leak detector is used to detect any leakage of the tracer gas. This method is highly sensitive and can detect small leaks.
II. How to choose the right test method?
The choice of which detection method to use needs to be based on a combination of factors such as valve type, leakage medium, leakage size, and cost. Example:
1. For gas leaks, which can be done using an audible inspection, a smear method, or an ultrasonic leak detector.
2. For liquid leaks, visual inspection, smear method or infrared thermography can be used.
3. For small leaksIf the leak is not detected, the tracer gas method or high-precision leak detection equipment (e.g., Precision Engineering) should be used.JC-C10005).
Ⅲ. Precision Engineering: A Professional Leakage Testing Solution Provider
Conducting effective valve leakage detection can help companies find and solve leakage problems in a timely manner, reduce safety risks, minimize economic losses and improve productivity. Precision Engineering gas tightness has more than ten years of industry experience, can provide you with customized sealing inspection solutions and high-quality testing equipment, includingAirtightness Tester,Waterproof Tester,Burst Tester,Leak test equipment,Respiratory Cycle Testeretc.
We are committed to providing solutions comparable to imported quality at domestic prices to help you reduce costs and improve efficiency.
After years of development and accumulationPrecision Engineering has become a well-known domestic and internationalLeak Detector Brandsand supplier of fully automated airtightness testing solutionsWith more than 3,600 customers in Asia Pacific, Europe and North America, our products are CE certified to better serve the international market.
Choose Precision Engineering to protect your product quality and production safety from potential risks. To learn more about strength testing and seal testing, please visit our website or feel free to contact us.
