In the process of designing and manufacturing hard seal butterfly valve, there is an attribute that is worth noting, that is, its pressure resistance. Hard seal butterfly valve pressure resistance to a large extent determines its service life and performance, so in the manufacturing process from all aspects to seek to improve its pressure resistance.

In the actual use of the process, a large part of the hard seal butterfly valve pressure resistance is from the hardness of the valve body, that is, the hardness of the valve to a large extent determines its pressure resistance. So in the manufacturing process, manufacturers will pay much attention to the proportion of carbon and boron elements added to the steel, these two elements are very important components to increase the hardness of the finished steel.

Secondly, the internal pressure resistance also needs to get some attention, but this point is exactly what hard seal butterfly valve is good at. Its internal hard sealing method makes the combination between sealing surface and packing very precise, and when subjected to external pressure, it can make it not to produce displacement in the way of fitting, and maintain good sealing. This can also be said to be another aspect of its excellent pressure resistance.