SMC Networks PF2W7 Series Operation Manual page 18

●Connecting the piping
Ensure that the metal piping attachments are tightened to the required torque (refer to the table below).
If the tightening torque is exceeded, the product can be broken. If the tightening torque is insufficient, the
fittings may become loose.
When connecting piping to the product, a spanner should be used on the metal piping attachment only.
Using a spanner on other parts may damage the product.
Avoid any sealing tape from entering inside the piping.
Ensure that there is no leakage from loose piping.
Nominal thread size
Rc(NPT)3/8
Rc(NPT)1/2
Rc(NPT)3/4
Rc(NPT)1
Model
PF2W704
PF2W720
PF2W740
PF2W711
PF2W704T
PF2W720T
PF2W740T
-17-
Required torque
22 to 24 Nm
28 to 30 Nm
28 to 30 Nm
36 to 38 Nm
Width across flats of
attachment
34 mm
45 mm
34 mm
No.PF※※-OMO0012-D