Page 2 of Latest News, Dates, Events, Press, Articles
Check Valve Plays an Essential Role in Wastewater Treatment

Check Valve Plays an Essential Role in Wastewater Treatment

  • Nov 30, 2017
  • Hits: 16

Society's desire for a clean environment shines light on the importance of understanding the essential role wastewater treatment plants have in our communities. Technologies nowadays such as optim...

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The Seventh FlowTech International Pumps & Valves & Pipe Exhibition

The Seventh FlowTech International Pumps & Valves & Pipe Exhibition

  • Nov 30, 2017
  • Hits: 11

Shanghai International Pumps & Valves & Pipe Exhibition is a professional pumps, valves and pipes industry technology communication platform, which hosts by People's Republic of China Mini...

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Rosneft Drills World's Longest Well in Sakhalin

Rosneft Drills World's Longest Well in Sakhalin

  • Nov 27, 2017
  • Hits: 20

Rosneft, as a member of Sakhalin-1 Consortium, successfully completed drilling of the world's longest well from Orlan platform at Chaivo field in the Sea of Okhotsk.   The length of the wel...

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Characteristics and Applications of Manual Flanged Butterfly Valves

Characteristics and Applications of Manual Flanged Butterfly Valves

  • Nov 27, 2017
  • Hits: 15

The manual flanged butterfly valve is of simple structure, little space and light weight. It can be turned on or off in a short time just by rotating the lever 90°, which is very simple and conven...

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We Got the Registration Certificate of

We Got the Registration Certificate of "DVS" in EUIPO

  • Nov 20, 2017
  • Hits: 18

On November 10th, Dervos got our first Trademark in Europe. It is really a big step of us to move forward to the world.   With the rapid development of the whole world's economy, brand prote...

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Dervos for Clean Energy Projects

Dervos for Clean Energy Projects

  • Nov 20, 2017
  • Hits: 18

All the time Dervos keeps offering products with reliable quality and available solution to our customer. Our valve products are widely used in the petrochemical industry, power generation industry an...

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Plug Valves Join Our Product Range

Plug Valves Join Our Product Range

  • Nov 15, 2017
  • Hits: 21

Since foundation, DERVOS focused more on Gate, Globe, Check and Ball Valves, with our customers accumulated and reputation consolidated, facing the increasing demand from customers, we are gradually e...

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Различные принцип работы различных клапанов

Различные принцип работы различных клапанов

  • Nov 15, 2017
  • Hits: 17

Задвижка. Задвижки (шиберы) обычно используются в промышленных трубопроводных системах, когда клапан должен ...

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The Regular Polymer Materials Brief Used For Ball Valve Seat

The Regular Polymer Materials Brief Used For Ball Valve Seat

  • Nov 06, 2017
  • Hits: 22

The Regular Polymer Materials Brief Used For Ball Valve Seat 1. PTFE-F4 Teflon (PTFE-F4) has excellent heat resistance, cold resistance, non-sticky, good self-lubricating, low coefficient of friction...

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Cavitation In Control Valves - E.G. Butterfly Valve

Cavitation In Control Valves - E.G. Butterfly Valve

  • Nov 06, 2017
  • Hits: 22

When the control valves are used in liquid service, they may experience localized cavitation. Cavitation consists of the formation of liquid vapor cavities when the local static pressure drops to the ...

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