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The maintenance of the ball valve
The maintenance of the ball valve 1. It is necessary to find out that the upstream and downstream pipelines of the ball valve have indeed relieved the pressure before disassembling and disassembling. 2. Care must be taken to prevent damage to the sealing surface of parts, especially non-metal...Read more -
Ball valve installation
the installation of the ball valve Matters needing attention in ball valve installation Preparation before installation 1. The pipelines before and after the ball valve are ready. The front and rear pipes should be coaxial, and the sealing surfaces of the two flanges should be parallel. The p...Read more -
The structure, characteristics, advantages and classification of ball valves(2)
The ball valve with a fully welded body can be directly buried in the ground, so that the internal parts of the valve are not corroded, and the maximum service life can be up to 30 years. It is the most ideal valve for oil and natural gas pipelines. According to the structure of the ball va...Read more -
The structure, characteristics, advantages and classification of ball valves(1)
The ball valve is evolved from the plug valve, it has the same 90 degree rotation lift action. The ball valve can be closed tightly with only a 90-degree rotation and a small torque. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for...Read more -
What is a ball valve?
The ball valve can be closed tightly with only a 90-degree rotation and a small torque. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for the medium. It is generally considered that the ball valve is most suitable for direct opening ...Read more -
What is the Advantages of ball valve ?
The Ball valve Advantages: The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length; Simple structure, small size and light weight; It is tight and reliable. At present, the sealing surface material of the ball valve is widely used in...Read more -
What is the difference between a floating ball valve and a fixed ball valve?
The ball of the floating ball valve is floating. Under the action of the medium pressure, the ball can produce a certain displacement and press tightly on the sealing ring at the outlet end to ensure the outlet end is sealed, which is a single-sided forced seal. The ball of the fixed ball val...Read more -
Where the ball valve is applicable
Since the ball valve usually uses rubber, nylon and polytetrafluoroethylene as the seat sealing ring material, its use temperature is limited by the seat sealing ring material. The cut-off function of the ball valve is accomplished by pressing the metal ball against the plastic valve seat und...Read more -
The working principle of the ball valve
The ball valve evolved from the plug valve. It has the same 90-degree rotation action, but the difference is that the ball valve is a sphere with a circular through hole or channel passing through its axis. The ratio of the spherical surface and the channel opening should be the same, that ...Read more -
Features and advantages of Trunnion Mounted Ball Valve
A ball valve with a fixed shaft on the ball is called a Trunnion Mounted Ball Valve. The Trunnion Mounted Ball Valve is mainly used for high pressure and large diameter. According to the different installation of the seat sealing ring, the Trunnion Mounted Ball Valve can have two structures:...Read more -
Butterfly valve design and selection(2)
3 Optional 3.1 Type The butterfly valve has different structures such as single eccentric, inclined plate type, center line type, double eccentric and triple eccentric. The medium pressure acts on the valve shaft and bearing through the butterfly plate. Therefore, when the flow resistance of...Read more -
Butterfly valve design and selection(1)
1 Overview The butterfly valve is an important device in the water supply and drainage pipeline system. With the advancement of industrial technology, different requirements are put forward on the structure and performance of the butterfly valve. Therefore, the type, material and con...Read more
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