UPVC Type B Handle Butterfly Valve DN40-200
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A butterfly valve is a type of flow control valve that uses a circular disk-shaped element, known as the butterfly valve, to regulate the flow of a fluid or gas. The disk is connected to a shaft that is rotated to open or close the valve. When the valve is open, the disk is perpendicular to the flow of the fluid, allowing it to pass through. When the valve is closed, the disk is parallel to the flow, blocking it.
Butterfly valves are used in a variety of industrial, commercial, and residential applications, including water treatment plants, irrigation systems, HVAC systems, and gas pipelines. They are known for their durability, low cost, and ease of maintenance. They are also relatively lightweight and compact, making them a good option for tight spaces.
Butterfly valves come in a variety of materials, such as cast iron, stainless steel, aluminum, and plastic, for different types of applications, and can be operated either manually or by actuators. Different types of butterfly valves includes wafer, lug, and double flanged types, each of which have their own unique features. They can also be classified based on the disc shape and the method of shaft sealing.
Compared to other valves, butterfly valves have a relatively lower pressure drop, making them a good choice for applications that require a moderate flow rate and relatively low pressure.