The function of manual butterfly valve
A manual butterfly valve is a type of valve that is used to regulate or control the flow of fluids such as gases or liquids. It consists of a flat circular disc or vane that rotates around a central axis, which is perpendicular to the flow direction. The disc is connected to a stem that is operated manually by a lever, wheel, or gear mechanism.
When the stem is turned, the disc rotates to either fully open or fully close the valve. The degree of rotation determines the degree of opening or closing of the valve, which allows for precise flow control. When the valve is fully open, the disc is perpendicular to the flow direction, allowing for unobstructed flow. When the valve is fully closed, the disc is parallel to the flow direction, preventing any flow from passing through.
Butterfly valves are commonly used in a variety of industries, including chemical processing, water treatment, and HVAC systems. They are often preferred over other types of valves because they are lightweight, compact, and require minimal maintenance. In addition, their simple design and ease of operation make them an attractive choice for applications where manual control is required.
