TYCO Model TJR Resilient-Seated Gate Valves are used in Fire Protection Systems for on/off operation. End connection configurations including Flange x Flange, Flange x Groove, and Groove x Groove are available. All of the end connection configurations have tapping bosses. The ductile Iron body weighs approximately 50% less than conventional cast iron valves, which allows easier handling on site and reduced shipping costs. The fully encapsulated EPDM ductile iron Wedge ensures bubble-tight sealing. Valve components are either inherently corrosion-resistant or protected with fusion-bonded epoxy resin coating for a long, dependable service life and enhanced UV protection in exposed installations. This valve is one of the lightest, most durable gate valves on the market today. Its design features and material selection criteria fulfill the need for a dependable, long life and easy to operate gate valve. Never remove any piping component nor correct or modify any piping deficiencies without first de-pressurizing and draining the system. Failure to do so may result in serious personal injury, property damage, and/or impaired device performance. It is the designer’s responsibility to select products suitable for the intended service and to ensure that pressure ratings and performance data are not exceeded. Material and gasket selection should be verified for compatibility with the specific application. Always read and understand the installation instructions. TYCO Gate Valves described herein must be installed and maintained in compliance with this document, in addition to the standards of any other authorities having jurisdiction.