Before the valve is installed, the valve strength test and valve sealing test should be performed on the valve hydraulic test bench. 20% of low-pressure valves should be inspected randomly...
Valve foundation
1. The basic parameters of the valve are: nominal pressure PN and nominal diameter DN
2. Basic function of the valve: cut off the connected medium, adjust the flow rate, and change...
1. Why do pipelines need to be equipped with air release valve?
When pipes are filled with water, run, or drained, air can accumulate inside them. If it is not discharged, “air blockage”...
In the 30s, the butterfly valve was invented in United States, introduced to the Japan in the 50s, and was widely used in Japan in the 60s, and it was promoted in China after the 70s. At present, b...
In this beautiful season, Tianjin Tanggu Water-Seal Valve Co., Ltd wishes you a happy National Day and a happy Mid-Autumn Festival! On this day of reunion, we not only celebrate the prosperity of o...
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