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Types of valve accessories
Types of valve accessories: The valve itself is composed of a valve body and various operating mechanisms, which also contain many parts and accessories, including manual, pneumatic, electric and so on. The components assembled in different ways of use are also different. Valve accessories mainly include: 1. Pneumatic actuator: It is mainly divided into single-acting […]
Working principle diagram of three-way valve
What is a three-way valve? Simply put, a three-way valve has three inlets and outlets; when the three-way merges, there are two in and one out, and the three-way split is one in and two out. It is controlled according to the shape of the spool. The most obvious difference in appearance between a three-way […]
World Famous Valve Brand Ranking
If you talk about trusted brands abroad, different valves have different manufacturers, and each imported valve company is involved in different fields, and each brand has its own advantages. The explanation for imported valve brands is to let users know more about imported valve brands. It is a comprehensive selection based on the brand awareness, […]
Types and working principles of electric valves
The so-called electric valve, as its name implies, is to drive the opening and closing of the valve through the power supply. It is mainly composed of two parts. The upper part is an electric actuator and the lower part is a valve. In industrial processes, it is used to control the travel and flow […]
Valve flow characteristic curve and classification
The flow characteristic of the valve is the relationship between the relative flow of the medium flowing through the regulating valve and its opening under the condition that the pressure difference between the two ends of the valve remains constant. Flow characteristic is an important technical index and parameter of regulating valve. It is very […]
installation principle and setting of the bypass valve
Whether the valve needs to be installed with the principle and setting of the bypass valve. We occasionally see relatively large valves in some pipelines and always install bypass valves. Why is this? What is its main function? Under what circumstances does it need to be installed? And what is the size of the bypass […]
The difference of cryogenic valve and ordinary temperature valve
Cryogenic valves, as the name implies, are valves that can work in cryogenic and cryogenic conditions. The operating temperature is demarcated. Valves with operating temperatures below -40°C are usually called cryogenic valves, which are mainly used for gas liquefaction, For separation, transportation and storage equipment, the operating temperature can reach below -270℃. Currently, there are […]
Valve installation instructions and process precautions
Valve is a kind of mechanical product that is widely used in the construction of national economy. In the current market, the more commonly used valve types are butterfly valves, check valves, ball valves, globe valves, gate valves and regulating valves. For the correct installation method of the valve, the user should understand the following […]
Commonly used valve body material code description
Valve body material code description: The material of the valve body should first consider the physical properties (temperature, pressure) and chemical properties (corrosiveness) of the working medium. At the same time, you should also understand the cleanliness of the medium (with or without solid particles). In addition, it is necessary to refer to the relevant […]
Code of valve sealing or lining material
The sealing surface of the valve mainly refers to the contact surface of the valve disc and the valve seat. The sealing element plays the role of cutting off and connecting, adjusting and distributing, separating and mixing the medium on the valve passage, and improving the quality and service life of the valve sealing surface. […]