Gate valve is a relatively common general-purpose valve with a wide range of uses. It is mainly used in water conservancy, metallurgy and other industries. Its wide range of performance has been re...
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...
When the valve is fully open, a sealing device that prevents the medium from leaking to the stuffing box is called the upper sealing device.
When the gate valve, globe valve and throttle valve are ...
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In this f...
1. Basic Definition and Structure
A soft sealing flanged concentric butterfly valve (also known as a “center-line butterfly valve”) is a quarter-turn rotary valve designed for on/off or...
In many parts of the world, desalination is ceasing to be a luxury, it is becoming a necessity. Lack of drinking water is the no. 1 factor adversely affecting health in areas without water security...
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