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How to choose a valve in the chemical industry
The media transported in various pipelines in the chemical industry are usually corrosive, such as sulfuric acid, hydrochloric acid, nitric acid and other corrosive media. All corrosion protection is the most basic requirement of chemical equipment. Chemical valves are of course no exception, and the selection of valve materials must be corrosion-resistant. If the chemical […]
Gate valve structure diagram and working principle
Gate valve structure; Working principle of gate valve Gate valve /stop valve structure: The gate valve refers to a valve in which the gate closing member moves along the vertical direction of the center line of the passage. Generally, it consists of valve body, valve seat, valve stem, gate, valve cover, and sealing ring. It […]
Non-rising stem(NRS) and rising stem(RS) gate valve
structures and differences of Non-rising stem(NRS) gate valve and rising stem(RS) gate valve RS gate valve structure picture, NRS gate valve structure picture RS gate valve and NRS gate valve are different from the transmission mode. RS gate valve is a handwheel that drives a nut to rotate in place, and the stem is linearly […]
electric butterfly valve code naming method
Electric butterfly valve model preparation method, electric butterfly valve code naming method, only suitable in China. With the increase in demand for valves in my country’s industrial manufacturing industry, electric butterfly valves have become a more prominent one among many valves. However, due to the wide variety of electric butterfly valves, and the difference in […]
Pneumatic butterfly valve model name coding method
Pneumatic butterfly valve model preparation method, code naming method, only in China Pneumatic butterfly valve is one of the most common valves in industrial piping systems. It has the functions of switch cut-off, proportional adjustment, and emergency cut-off. It also has rapid switching, simple structure and easy maintenance. It is used more and more on […]
Working principle diagram of electric butterfly valve
Working principle diagram of electric butterfly valve With the rapid development of my country’s industrial manufacturing industry, the demand for valves is also getting higher and higher, especially the use of electric butterfly valves and electric ball valves, which are the most prominent among many valves, and belong to the more common types of pipelines! […]
Types and classifications of butterfly valves
Types and classifications of butterfly valves Butterfly valves can be divided into offset plate type, vertical plate type, inclined plate type and lever type according to the structure. According to the sealing form, it is divided into two types: relatively sealed type and hard sealed type. Soft-sealed butterfly valves generally use rubber ring seals, and […]
Pneumatic gate valve model preparation method
Pneumatic gate valve model preparation method /naming method /code name modification: Pneumatic gate valve uses compressed air as the power source. Through the up and down movement of the valve stem, the gate is driven to open and close the valve. It has the advantages of reliable performance, convenient operation switching and maintenance, and has […]
electric wafer butterfly valve vs electric flange butterfly valve
The difference and selection of electric wafer butterfly valve and electric flange butterfly valve As one of the most common valves in pipelines, electric butterfly valves are used to realize the on-off and flow control of various media in the pipeline system. They have been widely used in many fields such as petroleum, chemical industry, […]
Representation method of electric gate valve model
Representation method of electric gate valve model; model name modification method; code name modification method The electric gate valve is composed of an electric actuator and a gate valve body. The gate plate is controlled by the power supply pressure to perform up and down linear operation to connect or close the fluid medium in […]