China Concentric - Manufacturers, Suppliers, Factory from China

China Concentric, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

What are the main factors affecting the sealing performance of butterfly valves?

Sealing is to prevent leakage, and the principle of valve sealing is also studied from leakage prevention. There are many factors that affect the sealing performance of butterfly valves, mainly inc...
The development status of China's valve industry

Recently, the Organisation for Economic Co-operation and Development (OECD) released its latest mid-term economic outlook report. The report expects global GDP growth to be 5.8% in 2021, compared w...
Valve selection principles and valve selection steps

1. Valve selection principle: The selected valve should meet the following basic principles. (1) Safety and reliability of petrochemical, power station, metallurgy and other industries require cont...
How does the air release valve work?

Air release valves are used in pipeline air of independent heating systems, central heating systems, heating boilers, central air release conditioning, floor heating and solar heating systems. &nbs...

DL Series flanged concentric butterfly valve