Selection of high-pressure ball valves

Friend: Hello! What is the diameter of your valve port?

For normal-temperature and high-pressure ball valves, a fixed forged steel ball valve can be selected. 1. Consider the medium to be CO, and the hazard level of the medium, a. For valve bodies & valve covers, forgings are preferred, as they have a finer microstructure and far fewer defects compared to castings ； b. To prevent CO leakage, low-leakage packing should be used; in fact, a low-leakage test can be conducted in accordance with SHELL 77/312 ； 2. Due to high pressure and large valve torque, operation is difficult, and wear occurs rapidly over time. This requires high precision in the machining and assembly of valve components; low precision can result in no leaks at first, but leaks will occur after short use, leading to a short lifespan as mentioned by the original poster. If you need to make a purchase, please contact me. Suzhou Newway Valves, Gao Zewei, 18962125332

Nanjing Youdi Fluid Control Technology Co., Ltd. is a marketing center for process automation control products established in Nanjing, Jiangsu, by Wuxi Yadi Fluid Control Technology Co., Ltd.; it is a limited liability company. Wuxi ADI Fluid is an integrated company specialized in the research, development, and production of control valves, especially custom-made control valves. The company possesses strong R&D and manufacturing capabilities, and has developed a variety of control valves suitable for a wide range of applications, in order to meet the challenges of future process automation across various industries such as the chemical industry represented by sulfur-based acid production plants, the petrochemical industry represented by oil refining and hydrocracking units, the coal chemical industry represented by methanol-to-ammonia plants, the power industry represented by supercritical power units, the steel industry represented by large blast furnaces and high-pressure oxygen generators, as well as industries such as chemicals, building materials, food and pharmaceuticals, and polysilicon. In addition to ordinary control valves, the company’s core technological products include high-temperature and high-pressure differential control valves, high-pressure gate valves, temperature and pressure reducers, PTFE-lined butterfly valves, high-pressure triple-eccentric butterfly valves, ultra-high-temperature butterfly valves (1200°C), high-temperature and high-pressure metal-sealed ball valves, and piston-type bottom valves for reactors. The company obtained ISO9001:2000 certification in 2005 ； In October 2006, it became the first in the country to obtain a **-grade control valve manufacturing license ； In April 2007, the localization of high-temperature and high-pressure differential hydrogenation control valves was selected as a project for scientific and technological innovation in Jiangsu Province ； In August 2008, the YD100G high-seal control valve was awarded a utility model patent certificate by the **Intellectual Property Office. The product offers an excellent cost-performance ratio. For inquiries, please contact: Mr. Zhang, 18913938372; E-mail: zab1568@126.com

We specialize in the production of ball valves; feel free to contact us at QQ1595253597 if you are interested

For low pressure, forged steel valves can be used; for high pressure, hard-sealed valves are preferable

This post was last edited by 19751107w on 2012-3-19 17:45. A hard-sealed ball valve is definitely the right choice. Since you say the lifespan is limited, have you found out what the main reasons for that are? Sealing surface? Valve stem? Filler? Only in this way can we take targeted actions~ Also, it’s necessary to specify the valve diameter and whether there is moisture in the medium. The hard-sealed ball valves from KAIWEIXI are good, and those from SU VALVE are also fine.