| 摘要 |
Valves for controlling pressurised fluids and assemblies of similar valves connectable so a single pressurised fluid source to provide a variable supply. The basic valve comprises a body (1) having a fluid inlet (2) which is connected to two outlets (4 and 6). The arrangement is such that fluid supplied to inlet (2) will preferentially flow out through outlet (4). A double-acting electromagnetic valve is provided which can close outlet (4) causing the fluid to exit through operational outlet (6). To provide variable control this basic arrangement is expanded so that there can be several vent outlets (53, 54, 55, 56) of differing apertures each associated with an individual electromagnetic valve. |
