Metal & Oil & Gas News –

Sealing grade and selection of valves Valve is an important component in the piping system of petrochemical plant. It is one of the main leakage sources in the plant with many kinds and large quantity. Therefore, the leakage requirement of valve is very important. Valve sealing performance ...

Let’s discuss the installation position of the check valve today. So how to determine the installation position of check valve? What is the difference between the installation before the pump and the check valve after the pump, and where is the pre ...

The essence of pipeline valve In the pipeline system, the valve is the control element, just like the human hand, so whether in life or in all walks of life, its importance is self-evident. What are its functions? How to install pipeline valve? Next, let’s ...

In the fluid pipeline system, the valve is the control element, whose main functions are opening and closing, throttling, regulating flow, isolating equipment and pipeline system, preventing medium backflow, regulating and discharging pressure, etc. There are many kinds of valves with complex varieties. ...

There are many types of valves, each with its own advantages and disadvantages. The following small series lists the advantages and disadvantages of the five major valves, including gate valves, butterfly valves, ball valves, globe valves and plug valves, I ...

Valve corrosion protection The corrosion of metals is mainly caused by chemical corrosion and electrochemical corrosion. The corrosion of non-metallic materials is generally caused by direct chemical and physical damage. 1. Chemical corrosion The surrounding medium directly reacts with the ...

Corrosion is one of the important elements that cause valve damage. Therefore, valve protection is an important issue to consider in valve protection. PetroChina and Sinopec talk about anti-corrosion: What is the corrosion of the valve? How to carry out ...