This Standard establishes requirements for manually operated, quarter-turn valves in nominal sizes (NPS) 2.  These valves are intended for indoor installation as potable water shutoff valves between the meter and the supply stop.  Valves governed by this Standard are intended for service at temperatures between 34oF (1oC) and 180oF (82oC), with an allowable working pressure rating not less than 125 psi (862 kPa).