CPC B08B 9/0322 (2013.01) [F16K 11/074 (2013.01); F16K 11/0743 (2013.01); F16K 11/085 (2013.01); Y10T 137/0419 (2015.04); Y10T 137/4259 (2015.04); Y10T 137/86501 (2015.04)] | 3 Claims |
1. A system comprising:
a valve having a plurality of material inlet ports, a flushing inlet port, and an outlet port;
respective supplies of at last two different liquid materials, the supplies each being connected to a respective one of the material inlet ports of the valve;
a supply of flushing medium connected to the flushing inlet port;
an inlet port disk in the valve having a plurality of disk inlet ports and a flushing disk inlet port;
a movable valve body in the valve, having a passage, and shiftable between a plurality of positions in each of which a respective one of the inlet ports of the valve is connected to the outlet port via the passage, the inlet port disk and the movable valve body interfacing without interposition of a seal; and
control means for moving the valve body between the positions such that, after each time the valve body is in a position connecting one of the material inlet ports to the outlet port and material has passed through the passage, the valve body is moved into a position connecting the passage with the flushing inlet port for flushing out the passage.
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