Custom Fluid Control Valves Manufacturers

How to improve the high pressure and corrosion resistance of the fluid control valve of the refrigeration compressor?

In the refrigeration system, the performance of the fluid control valve directly affects the stability and safety of the system. Especially in the face of harsh working conditions such as high pressure and corrosion, how to improve its high pressure and corrosion resistance has become the focus of the industry.
Material selection: Building a basic barrier for high pressure and corrosion resistance
The performance of the material directly determines the tolerance of the fluid control valve under high pressure and corrosion environment. For the improvement of high pressure resistance, high-strength alloy materials are the key choice. For example, high-strength forged alloy steel is used as the main material of the valve body. This material is processed by a special forging process, and the internal structure is uniform and dense. It can withstand high pressure loads and effectively avoid valve body deformation and rupture under high pressure conditions. Zhejiang Jinhao Refrigeration Equipment Co. Ltd also pays attention to the selection of materials in product manufacturing to ensure the stability of the product under various working conditions.
In terms of corrosion resistance, it is necessary to select suitable corrosion-resistant materials according to the specific medium environment. For valve components that are in contact with highly corrosive media, such as valve cores and valve seats, corrosion-resistant alloys such as Hastelloy and titanium alloy can be selected. The surface of these materials can form a stable oxide film to prevent further contact between the medium and the material matrix, thereby effectively resisting corrosion. In addition, materials such as duplex stainless steel can also be used, which has the advantages of both austenitic and ferritic stainless steels and excels in corrosion resistance and strength.
Structural design: Optimizing pressure bearing and corrosion resistance
Reasonable structural design can significantly improve the high pressure resistance and corrosion resistance of fluid control valves. In terms of high pressure resistant structural design, thick wall structural design can be used to enhance the pressure resistance of the valve body, but at the same time, it is necessary to consider the lightweight of the structure to avoid excessive weight of the valve due to excessive increase in wall thickness. Multi-stage sealing structural design is also an effective means to improve high pressure resistance. By setting multiple sealing points inside the valve, multiple sealing barriers are formed to ensure that the medium will not leak under high pressure.
For corrosion resistant structural design, it is necessary to avoid the formation of dead corners in the valve structure where the medium is easily accumulated, reduce the residence time of the medium inside the valve, and thus reduce the possibility of corrosion. The flow channel design adopts CFD fluid simulation optimization technology, which can not only reduce the flow resistance of the medium and improve the transmission efficiency, but also make the medium flow more evenly in the flow channel and reduce local corrosion caused by fluid scouring. Zhejiang Jinhao Refrigeration Equipment Co. Ltd can provide such an optimization design scheme according to customer needs to ensure that the valve can better adapt to the working conditions in actual applications.
Surface treatment process: Strengthening the surface performance of materials
Surface treatment process is an important auxiliary means to improve the high pressure resistance and corrosion resistance of fluid control valves. For high pressure resistance, surface hardening treatment can improve the hardness and wear resistance of the material surface and reduce the wear and fatigue damage of the surface under high pressure. For example, heat treatment processes such as nitriding and carburizing are used to form a hardened layer on the surface of the material to improve the strength and hardness of the surface.
In terms of corrosion-resistant surface treatment, electroplating, spraying and other processes are widely used. A corrosion-resistant protective layer is formed by electroplating a layer of corrosion-resistant metals, such as nickel and chromium, on the surface of valve components. Spraying corrosion-resistant coatings is also an effective method. For example, polytetrafluoroethylene coatings have excellent corrosion resistance and can resist the erosion of a variety of strong corrosive media. In addition, the application of carbide surfacing technology in key components such as valve cores and valve seats can not only improve their wear resistance, but also enhance their corrosion resistance, ensuring good sealing performance in long-term use.
Manufacturing process control: ensuring consistency of product performance
Strict manufacturing process control is a key link to ensure the high pressure and corrosion resistance of fluid control valves. During the forging process, the forging temperature, forging pressure and number of forgings need to be accurately controlled to ensure uniform material structure and avoid forging defects. The welding process is crucial to the sealing performance and overall strength of the valve. The use of advanced welding technology and strict welding process specifications can ensure the quality of the welded joints and reduce the occurrence of defects such as welding cracks and pores.
The control of machining accuracy should not be ignored, especially the matching accuracy of the valve core and the valve seat. High-precision machining can ensure that the sealing surface between the valve core and the valve seat fits tightly, achieving zero leakage control under high pressure. Zhejiang Jinhao Refrigeration Equipment Co. Ltd has a special technical training department, where technical experts and service engineers provide customers with relevant knowledge and practical experience, which also reflects the company's emphasis on manufacturing process control and guarantees the manufacturing quality of products by improving the technical level of personnel.
Performance testing and optimization: Verify and improve performance
In order to ensure that the high pressure and corrosion resistance of the fluid control valve meet the design requirements, comprehensive performance testing is required. The high pressure test can be carried out by applying a test pressure higher than the working pressure to the valve through water pressure test, air pressure test, etc., to check whether the valve has leakage, deformation and other problems. The corrosion resistance test needs to simulate the corrosion conditions according to the actual medium environment, conduct corrosion tests on the valve components, and evaluate their corrosion resistance.
Through the accumulation of a large amount of performance test data, the design and manufacturing process of the valve can be optimized. For example, after 100,000 opening and closing life tests, the various components of the valve are inspected and analyzed to find out the weak links of wear and corrosion, and targeted improvements are made. Zhejiang Jinhao Refrigeration Equipment Co. Ltd follows the principle of continuous technological updates and always delivers the latest product information to users. This concept of continuous improvement is also applicable to the continuous improvement of the performance of fluid control valves.