日本精品aⅴ一区二区三区,另类在线视频,午夜少妇性高湖久久久久

中文|English

Your Current Position: News > Technical article

12

2019-09

【Technical article】 New 'smart actuators' for GF piping systems allow' networking 'of valves

In industrial systems, monitoring, control and maintenance of valves is a difficult task because actuators or valves are not directly available and are often difficult to obtain.
22

2019-06

【Technical article】 Comparison table of the relationship between valve size and medium velocity

It is well known that the flow rate and velocity of the valve mainly depends on the size of the valve, but also with the valve structure type of the resistance to the medium...
15

2019-06

【Technical article】 Selection design and application of ball valve for submarine pipeline

With the rapid development of offshore oil and gas industry technology and people's demand for energy, the development of deepwater oil and gas fields will become the future offshore oil industryThe focus of industry development...
04

2018-08

【Technical article】 Water treatment "year-end examination" performance eye-catching short-term industrial chain growth opportunity

In the first half of the year, the sewage treatment industry developed rapidly, integrating technology, service resources and ...
26

2018-07

【Technical article】 Analysis of Causes of Combustion Explosion of Several Common Oxygen Pipes and Valves

Over the years, with the increase in the amount of oxygen, large oxygen users have used oxygen pipelines. Due to the long length of the pipeline, the distribution is wide, plus...
14

2018-07

【Technical article】 Six strokes teach you to identify refurbished valves

Nowadays, the valve market is mixed, and unscrupulous traders are making huge profits. The counterfeit and refurbished valves are shoddy, which brings great safety hazards to the installation project.
30

2018-06

【Technical article】 Effects of valve leakage and countermeasures

Valve industry in China are rising steadily, corresponding to the traditional markets of North America and the eu as a valve product, although still occupy a larger market share of global valve market ...
23

2018-06

【Technical article】 What kind of stainless steel? Which of the 301,304,321 valves are used more?

Stainless steel is an abbreviation for stainless acid resistant steel. It is resistant to air, steam, water and other weakly corrosive media or stainless steel.
06

2018-06

【Technical article】 Meaning of De, DN, D, d, Φ

First, DN (Nominal Diameter) means the nominal diameter of the pipe, which is the average of the outside diameter and inside diameter. The value of DN = value of De - 0.5 * tube wall thickness. Note: This is ...
30

2018-05

【Technical article】 Valve leakage causes and treatment methods

If the leakage of the valve beyond the rated range occurs in the sealing valve and valve seat part of the safety valve, the loss of the medium will occur and the sealing material...

First <Previous 1 2 Next> End

TOP

+86-15963678999

sdhgfm@163.com