Since 1825, when the British Klux invented the balanced tank water meter, the development of water meters has nearly 200 years of history, and with the development of modern science and technology and intelligent water services, the types of water meters are becoming more and more diverse, so how many types of water meters are there today.
A good performing air valve should have the following characteristics: good flow characteristics, high durability, can be used in extreme weather conditions, effectively avoid leakage and injection, and still work properly under low-pressure operation.
Today we will discuss the check valve installation position. So how is the installation position of a check valve determined? What is the difference between installing a check valve in front of the pump and after the pump, and where does the installation in front of the pump apply?
Gate valves are used for open/close operations and are designed to be fully open or fully closed. These valves are not used for throttling or flow regulation because of excessive vibration and wear in partially closed gates. Gate valves are available in solid wedge, resilient wedge, collocated wedge, and double plate styles.
The butterfly valve, as the name implies, its key components are like a butterfly, turning freely in the wind. The disc of the butterfly valve is a disc, which rotates around an axis in the valve seat. The size of the rotation angle is the opening and closing degree of the valve.