Features: Make of 304 stainless steel, combined with sealing rings, corrosion resistant and reliable. Suitable for industry such as food and beverage, dairy products, brewing, pharmaceuticals, ensuring safety and clean. The pull handle design allows you to easily adjust the valves to four different positions by simply pulling and rotating it, making it easy to quickly switches fluid states. The manually operated valves handle can be mechanically locked in three states: fully open, partially open, and closed, ensuring precise and error free fluid control. The valves handle is equipped with a nylon sleeve, which effectively reduces friction and makes the valves opens more easily and freely. Specifications: Component: Stainless Steel Inlet Pipe Outer Diameter: about 38mm/1.5inch Ferrule Outer Diameter: about 50.5mm/1.99inch Package Includes: 1pc Butterfly valves note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.