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The sealing characteristics and principle of eccentric butterfly valve
Basic knowledge of eccentric butterfly valve: eccentric butterfly valve, also called offset butterfly valve; Eccentric butterfly valves can be divided into various types, generally single eccentric sealing butterfly valves, double eccentric sealing butterfly valves, and triple eccentric sealing butterfly valves. Features of single eccentric sealing butterfly valve: In order to solve the problem of squeezing […]
Butterfly valve use principle and installation instructions
Butterfly valve use principle and installation instructions The relationship between the opening of the butterfly valve and the flow rate basically changes linearly. If it is used to control flow, its flow characteristics are also closely related to the flow resistance of the piping. For example, two pipelines are installed with the same valve diameter […]
Gate valve model meaning and representation method
Gate valve model representation method | Gate valve model meaning Explanation of the meaning of the gate valve model: Gate valve is one of the more common types of shut-off valves. It is generally suitable for full-open or full-close two-position operation control. It is mainly used to close the medium in the pipeline. It is […]
Butterfly valve structure principle and application analysis
Butterfly valve (also called flap valve) is a kind of regulating valve whose closing part is circular disc or disc, mainly composed of valve body, valve stem, disc and sealing ring. The valve body is cylindrical with short axial length and built-in butterfly plate. The butterfly plate of the butterfly valve is installed in the […]
Principle of Globe Valve (Figure)
Globe Valve is also called stop valve, shut-off valve. The opening and closing part of the globe valve is a plug-shaped valve disc, the sealing surface is flat or cone, and the valve disc moves linearly along the centerline of the fluid. The movement form of the valve stem includes a lifting rod type (the […]
The difference between a float valve and a ball valve
The difference between a float valve and a ball valve, the principle of the float valve | diagram Float valve is a product of liquid level measurement and control. It is constructed by several main components such as valve body, piston, connecting rod and floating ball, and uses the principle of leverage to make the […]
Electric globe valve selection and application
Electric shut-off valve selection, Electric shut-off valve application, globe valve also named shut off valve or cut off valve. Advantages of electric shut-off valve: Once the electric shut-off valve is in the open state, there is no contact between its valve seat and the sealing surface of the disc, so its sealing surface is less […]
Ball valve installation and maintenance methods
Ball valve installation: 1. It must be confirmed that the pipeline and valve have been cleaned before operation. 2. The actuator operation of the valve drives the valve stem to complete rotation according to the size of the input signal: when it rotates 1/4 turn (900) in the forward direction, the valve is closed. When […]
The role and use of the ball valve
The function of the ball valve: The opening and closing part of the ball valve is a round sphere with a hole. The ball core rotates around the axis of the valve stem by 0-90° back and forth to achieve the purpose of opening or closing the valve. Ball valves have many functions. They are […]
Types and classifications of globe valve
Type of globe valve / Classification of globe valve The globe valve, also called the shut off valve or cut-off valve, is the most widely used valve, which is mainly composed of a valve body, a valve clack, a valve cover, and a valve stem. The valve body and valve cover are pressure-bearing parts, and […]