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26

2021-03

【Technical article】 Control valve common failure analysis and solutions

The control valve is widely used in oil refining and chemical industry. It is used to control the flow rate, pressure and liquid level of the fluid in the production process...
19

2021-03

【Technical article】 How to select valve material under high temperature condition?

Working condition of high temperature including high temperature, high temperature Ⅰ Ⅱ, high temperature, high temperature Ⅲ Ⅳ, high temperature, high temperature Ⅴ level...
12

2021-03

【Industry trends】 The construction and operation of rural sewage treatment facilities in China can still reach one trillion levels

The consensus in the industry is that the market environment has indeed changed profoundly.The industry generally believes that due to the increasingly saturated urban sewage
05

2021-03

【Industry trends】 "Carbon neutrality" leads to heated discussion that a national carbon market will be launched

How to promote the construction of the national carbon emission rights trading market (referred to as the "national carbon market") and complete the related targets of carbon emission reduction on schedule.
29

2021-01

【Technical article】 Operating method of manual valve

Manual valve is a valve operated by handle and handwheel. It is a common valve used in equipment pipeline.Its handle, hand wheel rotation direction clockwise is closed, counterclockwise is open.
22

2021-01

【Technical article】 Maintenance and operation of new valve before commissioning

Pre-maintenance of new valves before operation is a progressive construction concept to protect valve seat seals from seat damage during installation, welding and commissioning
15

2021-01

【Industry trends】 The valve industry will accelerate industrial transformation and upgrading

As the control part of the fluid conveying system, the valve has the functions of cut-off, regulation, flow diversion, countercurrent prevention, diversion and pressure relief. There are many kinds and various specifications.
08

2021-01

【Technical article】 Six factors should be considered when selecting sealing surface material of valve

The sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve
25

2020-12

【Industry trends】 There are five opportunities for natural gas development during the 14th five-year Plan period

In recent years, with the large-scale development and utilization of natural gas resources in China, the consumption of natural gas has increased greatly in the fields of power generation, civil use, transportation and chemical industry.
18

2020-12

【Technical article】 Antifreeze and maintenance of valves in winter

After entering winter, the temperature drops rapidly, the valve often appears the situation of freezing.If left untreated at this point, the pipeline is vulnerable to failure.If it is in some high-risk conditions...

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