Wear resistant working condition
Wear resistant working condition
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Globe Pneumatic Control Valve
Bellows Control Valve
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Control valves
Venturi Angle Valves
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Control valves
Cage Type Angle Valve
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Control valves
General Angle Valve
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Globe Pneumatic Control Valve
High pressure low noise cage control valve
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Globe Pneumatic Control Valve
High Pressure Cage Control Valve
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Globe Pneumatic Control Valve
High Pressure Single Seat Control Valve
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Globe Pneumatic Control Valve
Large diameter sleeve control valve
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Wear resistant working condition
The valves can undergo wear for various and numerous causes, but the main reason that causes the deterioration of the valves is the wear of the solid particles of the conveyed medium. However, it is possible to take specific measures to improve the wear resistance of the valves. Among these we include:
Improve material hardness
Research on the resistance of materials to abrasive wear shows that abrasive wear depends on the relationship between the hardness of the metal Hm and the abrasive hardness Ha. When Hm / Ha> 0.8, the amount of wear on the metal decreases rapidly and when Hm / Ha = 1.25-1.3, the amount of wear is already very low. It can be noted that if you want to reduce abrasive wear it is necessary that the hardness Hm of the metal material is 1.25-1.3 times greater than the hardness Ha of the abrasive, that is Hm = (1.25-1.3) Has.
This data can be used to evaluate the wear rate! The amount of wear is divided into three regions corresponding to the relative hardness. However, although the sealing surfaces of the valve disc and valve seat used in our country’s alumina plants are all made of
cemented carbide, the hardness value is lower than that of the abrasive. This means that the ratio of the valve disc hardness to the valve seat to the abrasive hardness is less than 0.8, such a high wear value will cause short service life of the valve.
Surface treatment
Using various surface treatment processes, the surface characteristics of the valve disc and valve seat can be changed. This method improves the abrasive wear and also improves the surface finish. It is important to remember that in addition to abrasive wear, the disc and seat are also subject to erosive wear. In fact, when the liquid conveyed is in contact with the disc and with the valve seat, the local pressure is lower than the evaporation pressure, so bubbles will form. As these bubbles flow through the high pressure area, the pressure rises until they burst, causing great damage at such a high temperature in moments. Due to the repeated formation and bursting of bubbles, the surface of the disc and the valve seat will be increasingly worn, presenting pits and voids typical of cavitation wear.Small droplets pour onto the surface of the valve disc and valve seat at very high speed (1000 m / s), causing high stress on the surface. Under these conditions, even a little stress will cause pitting corrosion, also called pitting. The way to prevent these types of wear is to increase the hardness of the material! After years of valve technology development, the wear resistance of Xinhui valve has been greatly improved. Today our valves are able to adapt to complex and severe working conditions, remaining intact and performing.
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Why choose XinHui valve?
Customized on demand
We very much welcome customers to bring your requirements in the industry, our industrial valve solutions include customized on demand! Use the best materials to produce standard compliant valves, If you need valve customization services, please contact us immediately
Valve quality
Xinhui valve strictly controls the quality of the products in each process; on the other hand, it improves the work quality of the employees; and constantly pursues the high performance and high quality of the products, and is committed to becoming the preferred brand of valve products for the majority of users. .
Professional Services
Our salesman will answer your professional industry questions, product questions, transportation questions, etc. Our service personnel are online 7*12 hours. If you encounter time difference problems, please wait patiently for our reply, and we will reply you as soon as possible The problem.
High and new technology
As a high-tech enterprise in China, we can provide complete valve sample drawings, technical support for valve production process, technical support such as maintenance manuals, and strength calculation books. Frequently Asked Questions about Valve Operation.
R&D innovation
Xinhui Valve has invested a lot of manpower and funds in the innovative research and development of valves, and opened laboratories, inspection rooms, and R&D rooms. 20 kinds of new products are developed every year. Customized industry-specific valves for customers, dozens of products under severe valve conditions.
International Standard
The valves we produce meet various international testing indicators, and all kinds of valves are manufactured and accepted according to relevant domestic standards such as GB and JB, as well as international standards such as ANSI, API, JIS, and BS. DIN. Please contact us for special production standards.
We are not only a manufacturer of valves, but also a disseminator of industry knowledge
OEM & ODM Newinteg Butterfly valve Applications
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![Wear resistant working condition 15 D341H国标法兰式蝶阀Butterfly valve](https://xinhuivalves.com/wp-content/uploads/2022/08/D341H国标法兰式蝶阀Butterfly-valve.jpg)
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![Wear resistant working condition 15 D341H国标法兰式蝶阀Butterfly valve](https://xinhuivalves.com/wp-content/uploads/2022/08/D341H国标法兰式蝶阀Butterfly-valve.jpg)
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