The NIBCO Press System® bronze gate valve features a screw-in bonnet for service where infrequent maintenance is required. The gate valve is designed with press-to-connect end connections with an inboard bead and EPDM O-ring with leak detection for quick and easy copper to copper joinery. Properly applying pressure from a press-fit tool tightens the O-ring onto the tube, ensuring a clean, permanent, watertight seal in seconds, with no flame, solder or flux. The gate valve is constructed of highmore quality lead-free* dezincification-resistant (DZR) Performance Bronze® silicon alloy per ASTM specifications. Non-rising stem gate valves are used when positive shutoff is required and a space saving is necessary. The NIBCO Press System® is user friendly, quick and easy to install. When properly crimped a unique “N” witness mark is clearly visible. The lead free HydraPure® Performance Bronze® gate valve is specifically designed for use in systems that deliver water for human consumption. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO® Press System® applies the proven performance of press technology to NIBCO valves and fittings -- the most specified flow control products in the industry. The NIBCO Press System features a full range of precision engineered copper fittings, bronze valves, accessories, pressing tools, jaws and chains. NIBCO Press System valves are backed by a 5-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry. less