Rotary valve assembly and method

摘要: A fluid valve (2) for controlling flow/or vacuum to a plurality of ports (22) and lines in rotating member (12) has rotary phase plate (10) with apertures therein which can be brought into communication selected the by rotation one at least two rotational positions. The union adapter (20) coupling one-port (36) or roll member. both such adapters. By respect adapter, certain are more aligned adapter.