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 leakage is very common in life and industrial production, and the impact is very large. In the light, it will cause waste or bring danger to life. For example, the leakage of tap water valve will lead to serious consequences, such as the chemical industry. Toxic, harmful, flammable, explosive and corrosive media leakage, etc., …
Valves often have some troublesome problems during use, for example, the valve is not closed tightly or tightly. What should I do? Under normal circumstances, if it is not tightly closed, first check to see if the valve is closed in place. If there is still leakage and cannot be sealed after it has been …
On September 26, the 14th Greater Bay Area Environmental Engineering Salon and Environmental Industry Forum was held and organized by COVNA Automation Co., Ltd and other 13 companies in Dongguan Yuelai Garden Hotel. In this regard, more than 10 media reported on the forum. As the largest environmental protection industry salon in South China, it …
Gate valve, also called gate valve, is mainly composed of valve body, bonnet, gate, valve stem, valve seat and sealing packing. It is one of the most common valve types in isolation valves. The main purpose of the gate valve is to cut off the fluid. For this reason, it is usually called a cut-off …
A ball valve is a valve with a ball as a closing part, which is mainly composed of a valve body, a valve seat, a ball, a valve stem, a handle (or other driving devices, such as electric actuators, pneumatic actuators or hydraulic actuators). The valve stem drives and rotates around the axis of the …
Working principle of butterfly valve: The butterfly valve is a kind of valve that is opened and closed according to the rotating valve stem while driving the disc plate to rotate. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, mainly rotating the disc plate 90C; for …
What is valve corrosion? Corrosion of the valve is usually understood as the damage to the metal material of the valve under the action of a chemical or electrochemical environment. Since the “corrosion” phenomenon occurs in the spontaneous interaction between the metal and the surrounding environment, how to isolate the metal from the surrounding environment …
With the rapid development of many industrial fields in our country, industrial automation has completely replaced manual operating systems, especially the use of various automatic control valves. With its unique structural characteristics, electric butterfly valves have become one of the most used valve types. First, the scope of application is also the most extensive. However, …
The electric three-way control valve has been used more and more widely due to its high adjustment accuracy, stable and reliable action, and the unique characteristics of one valve for multiple uses, and has been involved in many fields. However, users often encounter many problems in the actual application process, which has a lot to do with the …