Areas that need continuous improvement for PTFE lined valves

Nowadays, PTFE lined valve With the progress of the times, it has gradually penetrated into various industries and played an important role. Of course, although the performance of domestically produced PTFE lined valves is widely recognized by users, there is still a certain gap compared to international valve products. Therefore, continuous innovation is still needed to seek new breakthroughs in valve products.
So, what is the difference between PTFE lined valves and foreign valves? Firstly, in terms of valve processing technology, some foreign countries now have Fluorine-lined Butterfly Valve Enterprises now widely use special welding powders for cobalt free welding, and generally, preheating before welding, automatic welding, and post weld treatment are completed on a single production line in the production process. This is beneficial for better temperature control and ensuring welding quality. However, most domestic enterprises still use outdated welding methods that cannot meet the design requirements of valves. Secondly, in terms of product technology innovation, most domestic enterprises still imitate others' product technology, lacking innovation for better product performance, which affects the future development of enterprises. The latter is the gap in enterprise management awareness, where the lack of emphasis on product quality supervision and management, as well as the lack of rigorous production workmanship, are all reasons for poor product quality. Therefore, the future of PTFE lined valves still has a long way to go, and products need to constantly innovate and develop towards better performance.

What should I do if the handwheel of the PTFE lined valve does not rotate flexibly

Fluorine lined manual clamp butterfly valve D71F46-16C