I. What is FM certification? Why does the valve need it?
FM certification is issued by FM Approvals (affiliated with FM Global insurance company) and is a globally recognized authoritative certific...
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...
Wafer type
+ Lighter
+ Cheaper
+ Easy installation
- Pipe flanges required
- More difficult to centre
- Not suitable as end valve
In the case of a Wafer-style butterfly valve, the body is annular ...
In applications such as water supply and drainage, community water systems, industrial circulating water, and agricultural irrigation, valves serve as the core components for flow control. Their pe...
With the increasing problem of global climate change and environmental pollution, the new energy industry has been highly valued by governments around the world. The Chinese government has put forw...
1. The stomata
This is a small cavity formed by the gas that the metal solidification process does not escape inside the metal. Its inner wall is smooth and contains gas, which has a high reflectiv...
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