Specifies resilient-seated cast-iron eccentric plug valves, 3 in. (75 mm) through 72 in. (1,800 mm) in diameter, with .anged, grooved, or mechanical- joint ends, for water, wastewater, and reclaimed water systems having a Ph range from 6 to 12 and a temperature range from 33 degrees F to 125 degrees F (0.6 degrees C to 52 degrees C).