Valve Ports
Valve Ports
Every valve port, which appears on the outside of the valve, is supposed to be
shown on the symbol. But the ports are shown on only one of the boxes, the box that
represents the flow paths that exist at the start of the machine cycle. Some examples
are:
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 .
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.
Categories:
Pneumatics System,
Valve
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