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Lining material and its application scope of fluorine lined valve
Description of lining material of fluorine-lined valve With the maturity of the fluorine lining process, the varieties of fluorine lining valves are becoming more and more abundant, including fluorine diaphragm valves, fluorine butterfly valves, fluorine ball valves, fluorine check valves, fluorine globe valves, and fluorine filters. The biggest advantage of fluorine-lined valves is to control […]
Classification and selection of fluorine-lined valves
Fluorine-lined valves, anti-corrosion valves, corrosion-resistant special valves Introduction to fluorine-lined valves and corrosion-resistant valves: Fluorine-lined valve, also known as fluorine-lined plastic corrosion-resistant valve, is a method of molding (or inlaying) polytetrafluoroethylene resin and placing it on the inner wall of the valve pressure part or the outer surface of the valve inner part. (The same […]
The difference and selection of electric valve and pneumatic valve
With the progress and continuous reform of the times, my country’s valve products have also been innovated with the change of the times. At present, in the valve market where environmental protection and safety are increasingly demanded, the use of automatic control devices such as electric valves and pneumatic valves is gradually becoming impossible Optional. […]
Description and classification of valve connection
Classification and description of valve connection methods: Nowadays, the application range of valves is wider and wider, and corresponding valves should be used in different environments. The connection between the entire valve and the pipeline or equipment is different. Regardless of installation, use and maintenance, attention should be paid to the improper connection of the […]
Raised face flange and concave and convex face flange
Flange is used for the connection between two devices. The abbreviation refers to the form of the sealing surface. There are holes on it. The two flanges are connected by bolts. It is generally used for The mutual connection between the shaft and the shaft is also used for the connection between the pipe ends; […]
Comparison table of valve diameter and medium flow rate
It is well known that the flow rate and flow rate of the valve mainly depend on the diameter of the valve, and also related to the resistance of the valve structure to the medium. At the same time, it has a certain internal connection with various factors such as the valve pressure, temperature and […]
The matching function and principle of pneumatic valve accessories
Pneumatic valve is an actuator that uses compressed air to drive and operate the valve. Its opening and closing speed is relatively fast. It is often used for fast two-position cut-off and can also be used to adjust flow. Because it mainly relies on air to perform operations, so it has high practicability in flammable […]
The difference and application of stainless steel 430, 304, 316
Stainless steel 430, 304,316 are the material of valve body, valve stem/shaft, or valve disc/plate. 430 ferritic stainless steel containing more than 12% chromium can prevent oxidation caused by natural factors. It is called stainless steel. It belongs to 430 ferritic stainless steel. It has low thermal expansion rate, excellent formability and oxidation resistance. The […]
Principles of valve selection in the petroleum and chemical industry
Faced with so many valve classifications and such complex various working conditions, to choose the most suitable valve product for piping system installation, you should first understand the characteristics of the valve; secondly, you should master the steps and basis for selecting the valve; and then you should follow the choice of oil , The […]
Chinese marine valve product standard encyclopedia
Marine valves are equipment used to control the pressure, flow and flow direction of fluids in marine pipelines to meet the environmental conditions of ships. A valve is a control device for a fluid pipeline. Its basic function is to connect or cut off the flow of the pipeline medium, change the flow of the […]