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1.5.1 Logic Valve
No. Specification “shuttle valve”@’OR’ “dual pressure valve”@’AND’
An air signal given to either An air signal given to both simultaneously
the left-hand port 1 or the the left-hand port 1 and the right-hand port
1 Function right-hand port 1 will result in 1 will result in an output at port 2
an output at port 2
2
2
2 ISO symbol 1 1
1 1
Popular old
symbol
3. Logic Numbers.
Application Alternate switching from two
4. Safety function for stamping machine
example’s devices input.
Construction air
5
flow diagram
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