The 4 inch butterfly valve is commonly used in a variety of industries, including HVAC, water treatment, food and beverage, and chemical processing. It is typically made of materials such as stainless steel, carbon steel, or ductile iron, and may feature a resilient seat made of EPDM rubber or a similar material to provide a tight seal against leakage.
The valve can be operated manually using a handwheel or lever, or equipped with a motorized actuator for remote operation. Some advantages of using a China 4 inch butterfly valve include its compact size, low weight, and ease of installation and maintenance. However, it is important to select the appropriate valve design and materials for the specific application to ensure optimal performance and longevity.