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Pressure seal gate valve is a gate valve designed for high temperature and high pressure working environment. Under high pressure, the bonnet sealing ring of pressure seal gate valve will achieve better sealing due to the pressure of the valve itself. Simply come It is said that when the pressure is higher, the sealing performance of the Pressure seal gate valve is better.

There is a pressure relief hole at the upper end of the check valve piston lift type bonnet. When the disc rises, the medium in the guide sleeve of the bonnet will be discharged, thereby reducing the resistance. The disc of the lift check valve does not need manual operation, and the spring components inside the valve can make it work automatically.