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...
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, ...
The flow characteristics of the regulating valve are mainly four kinds of flow characteristics such as linear percentage fast opening and parabola. When installed in the actual control process, the...
Ordinary gate valves generally refer to hard-sealed gate valves. This article analyzes in detail the difference between soft-sealed gate valves and ordinary gate valves. If you are satisfied with t...
Gate Valve
Advantages
1.They can provide an unobstructed flow in the fully open position so pressure loss is minimal.
2.They are bi-directional and allow uniform linear flows.
3.No residues are lef...
(1) The valve does not operate.
The fault phenomenon and its causes are as follows:
1. No source of gas.① The air source is not open, ② due to the water content of the air source ice in winter, res...
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