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Mingjiang Express

Operating Conditions Application

27

2023-02

What are the causes of damage to the sealing surface of the instrument valve?

The instrument valve manufacturer stated: During the production process, in order to ensure that parameters such as the pressure and flow of the medium meet the requirements of the process flow, it is necessary to install a regulating mechanism to adjust these parameters. The main working principle of the regulating mechanism is to adjust the above parameters by changing the flow area between the valve plug and the valve seat.

2023-02-27

17

2023-02

What are the classifications and working principles of instrument valves?

An instrument valve is a pipeline accessory; it is a device used to change the cross-section of the passage and the flow direction of the medium, and to control the flow of the conveyed medium. Its sealing performance refers to the ability of all sealing components of the product to prevent medium leakage, which is a very important technical performance indicator of the product. It has three sealing parts: the contact between the two sealing surfaces of the open and close parts and the valve seat; the matching part between the valve stem and the packing box and packing.

2023-02-17

09

2023-02

What is the method for selecting the appropriate instrument valve?

In fluid pipeline systems, instrument valves are control elements. Their main functions are to isolate equipment and pipeline systems, regulate flow, prevent backflow, and adjust and release pressure. Since selecting the appropriate valve for the pipeline system is very important, understanding the characteristics of valves as well as the steps and criteria for selecting valves is also crucial. Below is an introduction to the method of selecting instrument valves:

2023-02-09

31

2023-01

Precautions for Using Lined Valves

Precautions for Using Fluorine-Lined Valves Fluorine-lined valves, also known as fluorine-lined plastic corrosion-resistant valves, are made by molding (or embedding) polytetrafluoroethylene resin (or processed profiles) onto the inner walls of steel or iron valve pressure parts (the same method applies to linings of various pressure vessels and pipeline accessories) or the outer surfaces of valve internals, and are manufactured into various valves and pressure vessels.

2023-01-31

18

2023-01

What are the classifications and applications of fluorine-lined valves?

What are the classifications and applications of fluorine-lined valves? Fluorine-lined valves, also known as fluorine-lined plastic corrosion-resistant valves, are made by molding (or embedding) polytetrafluoroethylene resin (or processed profiles) onto the inner walls of steel or iron valve pressure parts (the same method applies to the lining of various pressure vessels and pipeline accessories) or the outer surfaces of valve internals. They are manufactured into various valves and pressure vessels and possess unique properties that resist highly corrosive media.

2023-01-18

09

2023-01

How should lined valves be selected?

How should lined fluorine valves be selected? Lined fluorine valves are specifically used to control corrosive or highly corrosive media. The inner surface of the valve body is coated with various optional fluoroplastics, suitable for different working temperatures and fluid pipelines. They have high strength and good corrosion resistance.

2023-01-09

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