The wafer dual plate check valve is also a type of check valve with a rotary actuation, but it is a double disc and closes under the action of a spring. The disc is pushed open by bottom-up fluid, ...
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 ...
The process of operating the valve is also the process of inspecting and handling the valve. However, the following matters should be paid attention to when operating the valve.
①High temperature v...
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 ...
Many steps in the assembly process
Tianjin Tanggu Water-Seal Valve Co., Ltd (TWS Valve Co., Ltd)
Tianjin,CHINA
10th,July,2023
First of all, the first step is that the valve shaft should be paire...
In valve engineering, the Cv value (Flow Coefficient) of the control valve refers to the volume flow rate or mass flow rate of the pipe medium through the valve per unit time and under the test con...
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