BX43W-1.6C asphalt special valve

Asphalt special valves (also known as plug valves) belong to the same category of valves. Its opening and closing parts (cone plug or ball) rotate around its own center line. The plug valve uses a plug body with a through hole as the opening and closing part. Through the plug body and the valve stem, The rotation of the valve realizes the opening and closing action. Asphalt special valves have a simple structure, can open and close quickly, and have low fluid resistance. As one of the earliest valves adopted by people in history, in recent years, they have not been replaced by ball valves and other types of valves, but the market has become increasingly popular.
Advantages: The inlet and outlet windows of the valve body are designed with a double groove seal ring structure. During the rotation of the cock, the sealing ratio between the seal pairs gradually changes until it reaches the fully open or fully closed position. With sufficient sealing specific pressure, the sealing pair can achieve zero leakage.
.The double-channel groove sealing ring can not only stabilize the bushing in the valve body without displacement, but also absorb the slight deformation of the bushing caused by temperature difference changes, and at the same time produce a strong wiping effect between the bushing and the cock. , and improves the service life of the sealing surface.
.The entire sealing process can be approximately considered to be independent of the pressure within the pipeline.
.In the bushing, different filling materials are used according to the operating temperature and working medium, which ensures good lubrication and long service life.
Technical parameter model Nominal pressure
Test pressure applicable medium operating temperature (℃)
Shell seal