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. Hydrstatic test at negative temperature during construction in winter.
Consequences: because the tube freezes quickly during the hydraulic test, the tube is frozen.
Measures: try to carry out hy...
Check valve refers to the valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-...
The butterfly valve was invented in the United States in the 1930s. It was introduced to Japan in the 1950s and was not widely used in Japan until the 1960s. It was not popularized in my country un...
The Lantern Festival, also known as the Shangyuan Festival, the Little New Year’s Month, the New Year’s Day or the Lantern Festival, is held on the fifteenth day of the first lunar mont...