The NIBCO® bronze angle 175 PSI WWP valve features a screw-over bonnet with integral seat and renewable seat disc. The seat disc features Buna-N material. It is equipped with female threaded ends for ease of installation. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® globe valves for the most specified, versatile and economical valve option in fire protection applications. NIBCO® globe valves are backed by the NIBCO 5-year 125% limited warranty.