Samson 3372 User Manual

Data Sheet T 8313 EN
Edition August 2016
Fig.1: Type3372 Actuator with integrated
i/p converter mounted onto
Type3321 Valve
Fig.2: Type3372 Actuator · 120cm²
actuator area · With
Type3725 Positioner (direct
attachment)
Fig.3: Type3372 Actuator · 350cm²
actuator area · With
Type3725 Positioner (direct
attachment)
Fig.4: Type3372 Actuator (120cm²) with additional
Type4744‑2 Limit Switch
The Type3372 Electropneumatic Actuator is available in the
following versions:
• Version with integrated i/p converter, 120cm² actuator
area and 15mm rated travel (Fig.1)
• Version withType3725Positioner(directattachment),
120cm²actuator area and 15mm rated travel (Fig.2)
• Version withType3725Positioner(directattachment),
350cm²actuator area and 15 or 30mm rated travel
(Fig.3)
The actuators are suitable for attachment to Series V2001
Valves (e.g. Type3321, Type3323, Type3531, Type3535)
as well as Type3214 and Type3260 Valves. The actuators
mainly consist of two diaphragm cases, a rolling diaphragm
and internal springs. The Type3372 Electropneumatic Actua-
tor is controlled by a 4 to 20mA signal. For throttling service,
an i/p converter is integrated into the actuator or a Type3725
Positioner is mounted to the rod-type yoke using a support ele-
ment.
Furtherversions
– Permissibleoperatingtemperaturesfrom–35to+90°C
Only when a positioner is mounted
– Mechanicallyadjustablelimitstop · Only when a posi-
tioner is mounted and for 120cm² actuators
– Handwheel · Only when a positioner is mounted and for
120cm² actuators
– Explosionprotection for a mounted Type3725 Positioner
II2GExiaIICT4 according to ATEX, intrinsically safe
ExiaIICT4 according to CSAGroup, 1ExiaIICT4GbX
according to GOST
Accessories
– Type4744‑2LimitSwitch (Fig.4) · With explosion protec-
tion II2GExdbIICT6-T5 and degree of protection IP66
A clamping plate can be used to mount it · See Data Sheet
uT8367
Type3372ElectropneumaticActuator
Application
Electropneumatic linear actuators for attachment to Type3214
and Type3260 Valves as well as SeriesV2001 Valves
Ratedtravel 15and30mm
Actuator area 120and350cm²

Samson 3372 Specifications

Actuator Specifications

actuator area	120 or 350 cm²
valve travel	15 or 30 mm