Butterfly valve is widely used in urban construction, petrochemical, metallurgy, electric power and other industries in the medium pipeline to do cut off or adjust the flow of the best device. Butt...
The initial stage of the valve industry (1949-1959)
01Organize to serve the recovery of the national economy
The period from 1949 to 1952 was the period of my country’s national economic reco...
The continuous development of the valve industry (1967-1978)
01 Industry development is affected
From 1967 to 1978, due to the great changes in the social environment, the development of the valve ...
Flange butterfly valve is mainly used in industrial production pipeline, its main role is to cut off the circulation of medium in the pipeline, or adjust the size of medium flow in the pipeline. Fl...
First of all, whether it is a ball valve or a butterfly valve, etc., there are soft and hard seals, take the ball valve as an example, the use of soft and hard seals of ball valves is different, ma...
When the valve is fully open, a sealing device that prevents the medium from leaking to the stuffing box is called the upper sealing device.
When the gate valve, globe valve and throttle valve are ...