Ball and butterfly valves are commonly used valves. Some situations are universal, some can only be used one of them. The main difference between the two is the principle of construction and switching. High pressure valve manufacturers provide a brief analysis:
Ball valves: the cocks are evolving and the opening is a sphere.
The fluid resistance is small, and the full size ball valve has no resistance at all.
The structure is brief, small and lightweight.
Be strong. It has two sealing covers, and now the seal of the ball valve is widely used in various kinds of plastic, the sealing is good, can complete the complete seal. It is also widely used in vacuum systems.
4. The operation is convenient, quick opening and closing, from open to close just rotate 90 °, to facilitate remote manipulation.
Repair convenience, ball valve construction is brief, sealing ring is usually active, and the replacement is convenient.
When full or closed, the sealing of the ball and seat is isolated from the medium and the medium is not corroded by the sealing surface of the valve.
The scale is wide, from small to a few millimeters, large to several meters, from high vacuum to high pressure.
Because the ball valve is scrubbed during the open and closed process, it can be used in the medium with suspended solid particles.
Butterfly valves: open and closed are round and open. Features:
1, the construction is brief, the volume is small, the device is convenient;
The resistance coefficient is small and the speed is fast.
Can be used in large-caliber valves;
Use a different sealing surface, use various kinds of environment, including powder, granular medium;
5, open and close convenient agile, energy-saving, fluid resistance is small, can operate often.
Able to carry mud and deposit liquid at the pipe.
Under low pressure, excellent sealing can be achieved.
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