Manufacturer Name: Belimo Product Number: B250 OEM Part Number: B250 Product Description: 2" 57Cv Ball Valve Weight:2.76lbs/1251.91g The Belimo B250 2 Inch 57Cv Ball Valve is a critical component used in HVAC systems to precisely control fluid flow. To regulate the flow of water, air, or other fluids, this ball valve rotates a spherical ball with a hole through i... https://www.partshnc.com/2-57cv-ball-valve-3