Samson 4708-1152, Монтаж и эксплуатация

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1 Design and principle of
operation
The supply pressure regulator is used to sup-
ply pneumatic measuring and control equip-
ment with a constant air supply.
The maximum 12 bar pressure of the com-
pressed air network in a plant is reduced to
an adjustable minimum pressure of 0.2 to
1.6 bar or 0.5 to 6 bar.
At the inlet side, the supply pressure regula-
tor is equipped with a filter cartridge with a
mesh size of 20 µm. In addition, the regula-
tor can also be equipped with a filter recep-
tacle and a pressure gauge on the outlet
side.
The compressed air at the inlet flows across
the filter and through the free cross-sectional
area between the seat (1.1) and plug (1.2).
It leaves the outlet with a reduced pressure
depending on the plug position.
The output pressure to be controlled is trans-
ferred through the bore (1.3) to the operat-
ing diaphragm (2) where it is converted into
a positioning force. This force is used to
move the valve plug depending on the force
of the positioning spring (4).
Turning the set point screw (7) causes the
spring force to change and, as a result, the
required set point is adjusted.
The set point ranges of the supply pressure
regulator from 0.2 to 1.6 bar and 0.5 to
6 bar are determined by various tensions of
the installed positioning spring (4).
Condensed water contained in the com-
pressed air can be collected and drained
when the filter cartridge (9) is mounted hori-
zontally or the filter receptacle (12) is sus-
pended downwards. The stopper (10) can
be unscrewed or the manual drainage can
be activated (drain plug (15) in old versions)
to drain condensed water.
Note:
Tighten the drain plug by hand only.
The maximum permissible tightening torque
is 3 Nm.
4
EB 8546 EN
Design and principle of operation