Technical article

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24

2023-03

【Technical article】 How should flange butterfly valves be selected?

Flange butterfly valves are mainly used in industrial production pipelines. Their main function is to cut off the flow of media in the pipeline, or to regulate the flow of media in the pipeline.
03

2023-03

【Technical article】 What is the difference between hard seal butterfly valve and soft seal butterfly valve?

Hard seal butterfly valve refers to the "hard seal" with metal materials or other hard materials on both sides of the sealing pair.
24

2023-02

【Technical article】 Differentiation between knife gate valve and common gate valve

Knife gate valve can only be used to cut off rather than to throttle, and gate valve can throttle or switch.
16

2022-12

【Technical article】 Installation environment and maintenance precautions of butterfly valve

Installation environment and maintenance precautions of butterfly valve
09

2022-12

【Technical article】 Causes of Rust on the Surface of Stainless Steel Valves

304 austenitic stainless steel (new standard 06Cr19Ni10 steel, old standard 0Cr18Ni9 steel) is widely used in petrochemical,
18

2022-11

【Technical article】 The last line of defense for pressure relief valves in pressure vessels shall be

The installation of safety and relief valves in pressure vessels and the use of stop valves upstream and downstream are considered to be the last line of defense for equipment with internal pressure greater than atmospheric pressure.
12

2022-11

【Technical article】 What are the working principles of electric gate valve

Electric gate valve is a widely used valve, which is mainly used in analog quantity regulation of medium flow in liquid, gas and air systems.
21

2022-10

【Technical article】 Introduction to antifreeze and maintenance of valves

In winter, the temperature drops rapidly, and the valve often freezes. At this time, if it is not handled, the pipeline will be prone to failure.
14

2022-10

【Technical article】 What problems should be avoided during the use of V-ball valve?

When using the relevant mechanical equipment, if some wrong methods are used, the equipment will be seriously injured.
17

2022-09

【Technical article】 Valve Welding Inspection

Valve welding inspection is generally divided into two parts:

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