Flow Paths
Flow Paths
Each box contains a group of lines that represent the flow paths the valve provides
when it is in that position. If a port is blocked, we show that by the symbol ( T ) .
If two ports are connected and air can flow, this is shown by a line drawn between
the two ports.
In the example above, the left box shows the conditions that exist at the start of the
cycle. Port 1 is blocked, and port 2 is blocked. When the valve is shifted, the flow
condition shown in the right hand box exists. Port 1 is open to port 2.
The direction in which air flows during a normal
operating cycle is shown by
putting arrowheads at the ends of the flow paths next to the ports where the air will
come out.
Example #1 - At the start of the cycle, the flow path
from port 1 to port 2 is blocked. When the valve
shifts, flow is from port 1 to port 2.
operating cycle is shown by
putting arrowheads at the ends of the flow paths next to the ports where the air will
come out.
Example #1 - At the start of the cycle, the flow path
from port 1 to port 2 is blocked. When the valve
shifts, flow is from port 1 to port 2.
Example #2 - At the start of the cycle, the flow path
from port 1 to port 2 is blocked. When the valve
shifts, port 1 is opened to port 2, but during some
part of the cycle air flows from port 1 to port 2, and
during another part of the cycle air flows from port
2 to port 1.
from port 1 to port 2 is blocked. When the valve
shifts, port 1 is opened to port 2, but during some
part of the cycle air flows from port 1 to port 2, and
during another part of the cycle air flows from port
2 to port 1.
Categories:
Pneumatics System
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