A China wafer butterfly valve DN100 is a type of butterfly valve with a nominal diameter (DN) of 100 millimeters. The DN100 size is a common size for butterfly valves, and refers to the diameter of the pipeline that the valve is intended to fit.
The wafer butterfly valve is designed to be installed between two flanges in a pipeline, using bolts or studs to secure the valve in place. The valve features a disc, or butterfly, that is mounted on a shaft and rotates to control the flow of fluid through the pipeline. When the disc is turned perpendicular to the flow direction, it blocks the flow completely. When it is turned parallel to the flow direction, the valve is fully open and allows the fluid to flow freely.
The wafer design of the butterfly valve allows for easy installation and removal, as well as a low profile and lightweight construction. This makes it ideal for use in applications where space is limited or weight is a concern. The valve also provides a tight seal against leakage, thanks to its resilient seat and disc design.
Wafer butterfly valves are commonly used in a variety of industries, including HVAC, water treatment, food and beverage, and chemical processing. The DN100 size is suitable for use in pipelines with a diameter of 100 millimeters, or approximately 4 inches.