When selecting the correct type of butterfly valve for your industrial application, it is important to consider the specific requirements of the system. Two common butterfly valve types that are wi...
Tianjin Tanggu Water Seal Valve Co., Ltd. (TWS Valve) is pleased to announce that we will be attending Aquatech Amsterdam 2025! From March 11th to 14th, we will be showcasing innovative water solu...
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...
1. Defect characteristics
Unfused refers to the phenomenon that the weld metal is not completely melted and bonded with the base metal or between the layers of the weld metal.
Failure to penetrate ...
Gate valves are an important part of various industries, providing a means of controlling the flow of liquids and gases. Among the different types of gate valves available, concealed stem gate valv...
Hard seal butterfly valve
Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind of ...
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