The introduction and classification of the globe valve, as well as the selection of methods
Globe valve is a common valve, generally used to control the flow of media in the pipeline. Globe valves can be divided into many different types according to their construction and use.
1. Soft seal stop valve
Soft seal globe valve is a commonly used globe valve, with good sealing and small wear characteristics. Its valve body and valve cover made of cast steel or forged steel, between the ball and the seat using hard alloy material, sealing performance is good. Soft seal globe valve is generally suitable for low pressure, medium pressure pipeline system.
2. Hard seal the stop valve
The structure of hard seal globe valve is more complex than that of soft seal globe valve, usually composed of valve body, valve cover, ball, seat, sealing device, transmission device, etc. It has the characteristics of high temperature resistance, corrosion resistance, good sealing performance, often used in high pressure, high temperature, strong corrosive medium pipeline system.
3. Lift rod stop valve
Lifting rod stop valve is a valve, it through the lifting rod to control the lifting of the ball to achieve medium off. Lifting rod stop valve can not only control a single pipe, but also can control the whole large pipe, suitable for large industrial control system applications.
4. Electric stop valve
Electric globe valve is a valve that can automatically control medium flow and pressure. It can realize remote control and monitoring by receiving signal to transform its state, and is often used in automatic control system.
5. Manual stop valve
Manual stop valve through manual rotation of the valve, control medium on and off. Manual stop valve is simple in structure and easy to operate. It is commonly used in applications such as small pipelines and water systems in remote areas.
Method of selection:
When selecting the globe valve, the corresponding type should be selected according to the actual situation, considering the media type, working pressure, temperature, flow and pipeline structure and other factors. Also should consider the valve sealing performance, material, service life and other factors.
In short, in industrial pipeline system, globe valve as an important control device, according to the different needs, with different types and selection methods, should be selected and applied according to the actual situation. a
Post time: May-13-2023
