The differences between a double and a triple offset butterfly valve
- Dec 02,24
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Butterfly valves are like ball valves however have a few focal points. They are small and when activated pneumatically, they open and close rapidly. The plate i
The travel of Dervos in Qinghai Province
- Dec 02,24
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Last week, Dervos organized a travel to Qinghai province, a famous place for its natural scenery and flocks of sheep and cattle. The first stop of this journey
Valve welding inspection
- Dec 02,24
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Valve welding inspection generally consists of following two parts: 1. Document review: 1.1 WPS(WELDING PROCEDURE SPECIFICATION), PQR, welder qualification WPQ
Application range and selection of ceramic ball valves
- Dec 02,24
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China is a country with an energy structure dominated by coal. Air pollution is a soot-type pollution. Dust, sulfur dioxide (SO2) and nitrogen oxides (NOX) are
DJ Total Enters Russian Arctic LNG 2 Project
- Dec 02,24
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On May 24, it was reported that the France's Total has signed a agreement with Novatek to buy a 10% stake in Russian Arctic LNG 2 Project. This move has do
Brief introduction for t-body construction globe valve
- Dec 02,24
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The basic body forms for globe valve is T-body type, Angle type, Y pattern type. But T-body type is the most widely used in industrial pipelines. T-type valve b
Datong held a signing ceremony with IMF
- Dec 02,24
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On May 29, Datong Mutual Group Co., Ltd. officially held a signing ceremony with the world's top casting equipment supplier Italy IMF (Emfo) Group Co., Ltd.
3 way sanitary butterfly valves
- Dec 02,24
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Stainless steel 3-way sanitary butterfly valves are engineered and developed for use in applications that necessitate a sterile, clean environment. Common produ
The flow direction of globe valves
- Dec 02,24
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The globe valve is designed for low inlet and high outlet. The purpose is to make the flow resistance small and save effort when opening the globe valve. At the
Lukoil puts Iran plans on hold due to threat of U.S. sanctions
- Dec 02,24
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MOSCOW, (Reuters) - Lukoil, Russia's second-biggest oil producer, said on Tuesday it had decided not to go ahead with plans to develop projects in Iran at
The first day of DERVOS 10th ANNIVERSARY
- Dec 02,24
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This is the first day of our Tenth Anniversary.It began from Guests Airport Pick-up. Wendy and Yvonne are in charge.Wendy and Yvonne spent the whole day
The Second Day of DERVOS' 10TH ANNIVERSARY
- Dec 02,24
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This is the second day of our Tenth Anniversary.Guests gathered at the hotel lobby early in the morning.Then we took a bus to Datong Reciprocity Grou