Samson 3241, Mounting And Operating Instructions

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EB 8012 EN 17
Design and principle of operation
Actuators
In these instructions, the preferable combina-
tion with a Type 3271 or Type 3277 Pneu-
matic Actuator is described. The pneumatic
actuator (with or without handwheel) can be
replaced by another pneumatic actuator in a
different size, but with the same travel.
Î
Observe the maximum permissible actu-
ator force.
Note:
If the travel range of the actuator is
larger than the travel range of the
valve, the spring assembly in the ac -
tuator must be preloaded so that the
travel ranges match. See associated
actuator documentation.
The basic pneumatic actuator can be re-
placed by a pneumatic actuator with addi-
tional handwheel or by an electric actuator.
3.3 Technical data
The nameplates on the valve and actuator
provide information on the control valve ver-
sion. See section 2.1 and the actuator docu-
mentation.
Note:
More information is available in Da -
ta Sheet
u
T 8012.
Compliance
The Type 3241 Valve bears both the CE and
EAC marks of conformity.
Temperature range
Depending on the version, the control valve
is designed for a temperature range from
–10 to +220 °C (14 to 428 °F). The use of
an insulating section or bellows seal extends
the temperature range from –196 to
+450 °C (–325 to +842 °F).
Leakage class
Depending on the version, the following
leakage class applies:
Seal (16 on name-
plate)
ME, ST ME, ST PT, PK
Pressure balancing
(18 on nameplate)
– D/B –
Leakage class (ac-
cording to ANSI/
FCI 70-2)
Min. IV Min. IV VI
Noise emission
SAMSON is unable to make general state-
ments about noise emission as it depends on
the valve version, plant facilities, and pro-
cess medium. On request, SAMSON can
perform calculations according to
IEC 60534, Part 8-3 and Part 8-4 or VD-
MA 24422 (edition 89).
WARNING!
Risk of hearing loss or deafness due
to loud noise.
Wear hearing protection when work-
ing near the valve.
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