NIBCO makes it easy to balance mechanical and plumbing systems with our new lead-free and dezincification-resistant manual balancing valve. Our lead-free 1805 Series fixed orifice manual balancing valve is faster and easier to set because it does not require any special calculators or meters. Integral pressure temperature ports provide a direct readout across the orifice; optimum flow is quickly and accurately determined by simply measuring the differential pressure. The NIBCO® 1805 manual balancing valves are equipped with a union end that will provide up to a double reduction in inlet connection size. A isolation feature and a memory stop is also provided for system maintenance. The integral memory stop will return the system its origional setting upon completion. NIBCO makes it easy to balance mechanical and plumbing systems with our new lead-free and dezincification-resistant manual balancing valve. Our lead-free 1805 Series fixed orifice manual balancing valve is faster and easier to set because it does not require any special calculators or meters. Integral pressure temperature ports provide a direct readout across the orifice; optimum flow is quickly and accurately determined by simply measuring the differential pressure. The NIBCO® 1805 manual balancing valves are equipped with a union end that will provide up to a double reduction in inlet connection size. A isolation feature and a memory stop is also provided for system maintenance. The integral memory stop will return the system its origional setting upon completionThe NIBCO® lead-free manual balancing valve provides the ultimate solution for a wide range of application requirements to ensure a balanced plumbing system. NIBCO valves and components are backed by the NIBCO 5-year 125% limited warranty.