The NIBCO® gate valve features a screw-in bonnet for service where infrequent maintenance is required. Non-rising stem gate valves are used when positive shutoff is required and a space saving is necessary. The gate valve is constructed of high quality lead-free* dezincification-resistant (DZR) performance bronze silicon alloy per ASTM specifications. The lead-free valve is recommended for applications that deliver water for human consumption, including commercial and residential construction. Female threaded ends allow for ease of installation. The solid wedge, integral seats and bi-directional service make the gate valve a good choice for a broad range of services. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® valves for the most specified, versatile and economical valve option in commercial and residential applications. NIBCO® valves are backed by the NIBCO INC. 5-year 125% limited warranty.