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Air line piping diagram
The diagram below is a general layout of an air-line.
a. Silencer on the Built in the quick exhaust valve (QEV)
Always connect the SMC AN40-04 silencers directly to both right and left QEVs built in the pump.
b. Piping between the built in QEV and the silencer.
Always mount the silencer directly to the exhaust port of the built in QEV without any joints.
c. Built in QEV
The built in QEV is integrated into the pump.
d. Piping between the built in QEV and the SV.
Always use the same pipe length to both right and left air lines. Use of a 1.5m or less PFA tube (10mm I.D. ×
12mm O.D.) is recommended.
e. Solenoid valve (SV)
If supply air pressure is 0.15MPa or more
, use the 5-port 2-position single solenoid valve of the SMC
SY9140-5-04-X90 or the CKD 4GB410-15-A-3.
If supply air pressure is below 0.15MPa
, use the 5-port
2-position double solenoid valve of the SMC SY9240-5 or the 5-port 2-position single solenoid valve (exter-
nal pilot operated type) of the SMC SY9140R-5 or CKD 4GB410-15-K-3. Always use the same SV model to
both the right and left air lines.
When the SMC SY9140-5-04-X90 is used, plug the normally-open out port 2(B) and exhaust port 3(R
2
).
They are not used. Connect a supply air line to the normally-closed out port 4(A).
* Air is exhausted through the normally-open out port of 5(R
1
) when the pump is stopped.
P
Pump
k
j
i
h g
f
e
d
c
b
a
l
4(A)
5(R
1
) 1(P) 3(R
2
)
2(B)
Air line piping