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Lift check valve installation method and installation and maintenance
Lift check valve refers to a valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. The check valve is an automatic valve whose main function is to prevent the backflow of the medium, the reverse rotation of the pump and the dri… -
Three major characteristics of soft sealing gate valve
The soft sealing valve gate itself is a kind of valve with strong sealing performance. Its characteristics are widely reflected in other aspects. Compared with valves of other materials, it has many advantages in industrial production and can be used with confidence, so for For many manufacturers, it is a better choice.… -
Explore the reasons for the use of long-neck bonnets for cryogenic valves
The cryogenic valve adopts the long-necked bonnet superior. The output liquid low-temperature medium, such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., is not only flammable and explosive, but also needs to be gasified when heated up, and its volume expands hundreds of times when gasified. … -
The difference and connection between ball valve and plug valve
When used for cutting off, the plug valve has a slightly better adjustment ability than the ball valve, but the advantages are limited. Although the sealing surface of the plug valve is much larger than that of the ball valve, the sealing effect is good, so the torque is too large and the action is not flexible enough. Due to the influence of the weight of the cock itself, it is difficult for the … -
What are the main differences between forged steel ball valves and cast steel ball valves
Forged steel ball valves are steel used for casting castings. A type of cast alloy. Cast steel is divided into three categories: cast carbon steel, cast low alloy steel and cast special steel. Cast steel refers to a kind of steel casting produced by casting method. Cast steel is mainly used to manufacture some parts with complex shapes, which are difficult to be forged or formed by cutting and req… -
The working principle and characteristics of flange forged steel ball valve
Flanged forged steel ball valve has the function of rotating 90 degrees. The cock body is a sphere with a circular through hole or channel on the shaft. Ball valves are mainly used to block, distribute and change the flow direction of the medium in the pipeline. Just turn it 90 degrees to close the small torque tightly. Ball valves are suitable for use as on-off and globe valves, but recent develo… -
Where are the two-piece forged steel ball valves used and what are their characteristics?
The material of the two-piece forged steel ball valve is forged, and its density is much higher than that of castings. Especially suitable for the manufacture and processing of high pressure ball valves. The closing ball of the high pressure forged steel ball valve rotates around the centerline of the valve body to open and close. A ball valve is arranged at the end of the metal valve seat, in whi… -
Application range and characteristics of low temperature forged steel ball valve
Low temperature forged steel ball valves are mainly used to close or connect the pipeline medium in the pipelines of various systems of thermal power plants. Applicable medium: non-corrosive medium, such as water or steam. Compared with other valve products, the forged steel ball valve has the characteristics of high temperature and high pressure, and the unique self-sealing design makes the seal …