The Keystone Series 221 Butterfly Valves are designed for use in various industrial applications where flow control is essential. These valves are popular in sectors such as water treatment, chemical processing, and HVAC systems. The butterfly valve design enables quick flow regulation through a rotating disc which can be fully opened or closed with minimal pressure drop. One of the unique features of the Keystone Series 221 is its lightweight construction combined with robust materials, allowing easy installation and maintenance. Additionally, the series incorporates a resilient seat that enhances sealing performance and reduces the risk of leakage. This valve is particularly suited for applications where space is limited, as its compact design takes up less room compared to traditional gate or globe valves. Overall, the Keystone Series 221 Butterfly Valves demonstrate excellent durability, reliable performance, and versatility in a wide range of environmental conditions.

Size: 3" Type: Wafer Style Pressure Rating: 150 psi Body Material: Cast Iron / Ductile Iron Disc Material: Stainless Steel Seat Material: EPDM or Nitrile Rubber Temperature Range: -20°F to 250°F End Connections: ANSI 150 Flanged Weight: Approximately 10 lbs