Brass Stop and Drain Bleeder Valves - 331D
Ball valves can be used for positive, frequent 'on' and 'off' service or for throttling. The handle can be quickly opened or closed (90° turn) and allows for easy identification from a distance of valve position. 'Full Port' ball valves permit full flow and are typically used on hard piping systems (they have similar internal dimensions to hard pipe). 'Standard Port' ball valves can be used with piping but are also suitable when used with hose as they do not restrict flow (they have the same internal dimensions of the corresponding hose size).