Supply Pressure Regulators For Attachment To Positioners And Actuators - Samson 4708-5352 Mounting And Operating Instructions

Mounting the supply pressure regulator
2.2 Supply pressure regulators
for attachment to positioners
and actuators
The supply pressure regulator versions in-
tended for attachment to positioners and ac-
tuators are equipped with various adapter
plates for the attachment.
If required, the installation position of the
supply pressure regulator can be changed
by turning it 180° on its adapter plate to al-
low the set point screw/adjustment knob to
face either up or down. This applies particu-
larly for positioners which can be attached
either to the left or right side of the valve
yoke to determine the operating direction
and fail-safe action of the actuator.
To turn the supply pressure regulator, pro-
ceed as described for the compact supply
pressure regulator in section 2.1.2. The reg-
ulator is turned on its adapter plate instead
of on the connecting plate.
Regulators for Types 3730/3766/3767/
3780/3785/3787 Positioners
Type 4708-53xx for Type 3271 Actuator
and Type 3277 Actuator with 120 cm² as
well as 240 to 700 cm² with hooked-up
valve accessories.
1. Insert the gasket (2) into the recess of the
adapter plate (1).
2. Place the supply pressure regulator on
the positioner on the side where the
pneumatic connections SUPPLY and
OUTPUT are located. Screw tight using
both M5 screws (3).
Type 4708-54xx for rotary actuators.
Proceed to mount as Type 4708-53xx.
10
EB 8546 EN
Type 4708-54xx has a second output
sealed with a stopper. This is intended for
reduced supply air. It can be used to supply
a second device, if required (e.g. a pilot-op-
erated solenoid valve).
Type 4708-53xx
Type 4708-54xx
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Fig. 5 · Attachment onto positioners