Samson 4708 Series - 6 Pneumatic Connections; Pressure Gauge

34 EB 8546 EN
Pneumaticconnections
6 Pneumaticconnections
The air connections are designed either with
G¼ or ¼-18NPT threads. On compact
supply pressure regulators, an arrow on the
adhesive label indicates the direction from
the supply air input to the output.
In supply pressure regulators with two con-
necting holes in the adapter plate (Fig.5
and Fig.6), the supply air connection is
marked SUPPLY.
The positioner's output signal is routed in
these versions over the OUTPUT port through
the adapter plate to the actuator.
6.1 Pressuregauge
When attaching the pressure gauge, make
sure that a gap of 2 to 3mm remains be-
tween the lock nut (20) and pressure gauge’s
square on tightening the lock nut.
For Types4708-12xx/13xx (compact
versions), additionally make sure that the
blanking plug (23) is only screwed in until it
is ush with the body. Otherwise, the seals
(21, 22) will be damaged. Each seal is
assigned either to the pressure gauge or to
the screw plug and must be changed
correspondingly if you change the location
of the pressure gauge and screw plug to the
other side.
6
5
4
3
2
1
0
20 22
2...3 mm 0 mm
21 23
Fig.9: Mounting the pressure gauge, e.g. Types4708-12xx/-13xx (compact version)