Features300 psi non-shock cold working pressureMaximum temperature rating 260°F at 150 psiDZR Brass body and internal componentsDisc Seat - PTFEEPDM O-RingSolder ends per ASME B16.22Use in U.S. drinking water applications is prohibited after January 3, 2014Size 1/2"With NIBCO, accurately balancing HVAC and mechanical hot and chilled water systems is quick and simple. The FLO-BOSS 1810 Series fixed orifice manual balancing valves are faster and easier to set because they do 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. NIBCO FLO-BOSS fixed orifice solder end manual balancing valves also provide an isolation function for system maintenance, with an integral memory stop feature allowing the system to be returned to its retained settings once maintenance is complete.The FLO-BOSS 1810 Series fixed orifice manual balancing valves are dezincification-resistant and feature integral pressure temperature ports and memory stop. Direct system readings are taken across the orifice, with no special calculators or meters required. The FLO-BOSS 1810 Series provides 1440-degree of throttling adjustment, resulting in precise setting of system flow, and is also capable of providing system isolation for maintenance with an integral memory stop feature allowing the system to be returned to its retained settings once maintenance is completed. The NIBCO FLO-BOSS manual balancing valves provide the ultimate solution for a wide range of mechanical and HVAC chilled and hot water application requirements to ensure a balanced system and comfortable indoor climate.