Application Cases | Use of Spectrometers in the Valve Industry

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In various pipeline systems, valves are known as the “throat”. The performance and quality of valves are often a crucial aspect in the manufacturing processes of enterprises. In the event of leaks, production shutdowns, or serious accidents, it can cause immeasurable losses to the normal operation of industrial production, as well as to human safety and property (such as the world-renowned Three Mile Island nuclear accident in the United States). According to relevant statistics, one-third of the major production accidents that occur worldwide each year are caused by valve quality issues. Therefore, quality inspection in the valve industry is of utmost importance; it requires manufacturing processes that meet specified standards, as well as material supplies that adhere to strict criteria. Materials that satisfy these standards are crucial for determining the strength, lifespan, sealing performance, and corrosion resistance of valves. This represents the minimum requirement in the casting industry – using qualified materials is the essential foundation for producing valves of good quality. Hitachi analytical instruments help you carry out material analysis and testing as well as grade identification easily, enabling optimal quality control and assurance. They facilitate strict inspection of materials entering the facility, preventing the use of substandard materials by ensuring quality control at the source. Ensure strict control over material testing before and after valve manufacturing: 1. Conduct a preliminary assessment of the raw materials upon their arrival at the factory to determine whether they meet the requirements and specifications for manufacturing, whether all elements are within acceptable limits, and to detect any instances of cutting corners. 2. Inspection and evaluation after product manufacturing, serving as a quality check prior to delivery from the factory to reduce risks. Quality is the lifeblood of a company’s survival, its foundation; it is the key to expanding the market and reaching the global stage. For a company to succeed in competition, it relies on excellent product quality. Any enterprise that wishes to establish itself among its numerous competitors must maintain high standards of quality. Especially for industrial equipment related to life and property safety, excellent product quality helps to reduce risks at all times, thereby minimizing losses directly or indirectly and protecting a company’s reputation and assets. Safety accidents are of utmost importance; we must remember these lessons and use them as a warning. One of the causes of accidents is problems with the material used for valve 12Cr1MOV – it’s most likely that the material of the main steam pipe is substandard, or old pipe sections are being used instead. A gas explosion occurred in the production workshop of Beijing Jingridongda Food Co., Ltd.; the cause of this accident was corrosion of the valve flange gaskets, which led to leaks and ultimately an explosion. As a result, 4 people died, 10 were injured, and the direct economic loss amounted to 14.29563 million yuan. In the case of the accident at Yantai Wanhua, the manufacturer, German company Piehler Spezialventile GmbH, confirmed that there were errors in the design, manufacturing, and configuration of elements such as the valve stoppers and valve stems. With safety accidents remaining a constant threat, only by maintaining strict quality control can companies survive in the long term. Zhejiang Yino Machinery & Electronics Co., Ltd. helps businesses improve the quality of their products. We recommend that you choose the most suitable equipment and instruments at the lowest cost, so as to enhance product quality, boost competitiveness, and reduce safety risks for your business. I. Handheld Spectrometers 1. Provides laboratory-quality analysis results within seconds, reducing testing costs and shortening the analysis time. 2. Offers reliable analysis results, with extremely high precision and accuracy. 3. Features superior performance, enabling the detection of a total of 36 elements including Mg and U. 4. Weighing only 1.5 kg, it is easy to carry, allowing for testing anytime, anywhere.

II. Optical Emission Spectrometers 1. Enables high-performance metal analysis right at the workbench. 2. Has an excellent detection range, including the ability to detect carbon and nitrogen elements. 3. Offers lower precision and lower detection limits.

III. Portable Optical Emission Spectrometers 1. Combines the portability of handheld spectrometers with the analytical advantages of optical emission spectrometers. 2. Can detect non-metallic elements as well, including carbon and nitrogen. 3. Portable design allows use in various working environments without being constrained by space limitations. 4. Enables on-site testing of large valve assemblies without the need for cutting or sampling.

I believe that with this introduction, everyone now has a basic understanding of the spectrometers required in the valve industry. Choosing the right spectrometer suitable for one’s needs is of great significance for enhancing a company’s product competitiveness. Used properly, it may allow for recouping the costs in just one attempt; it enables bypassing expensive third-party testing, avoids unreliable suppliers, and eliminates safety risks stemming from product quality issues.