Specifying an Actuator

SPECIFYING AN ACTUATOR

PNEUMATIC ACTUATOR

1.  TYPE OF SERVICE: ON/OFF MODULATING

2.  AIR PRESSURE AVAILABLE PSI

3.  STYLE:

SPRING RETURN: AIR TO: OPEN CLOSE

DOUBLE ACTING

ELECTIC ACTUATOR

1.  ENCLOSURE RATING: NEMA 4 NEMA 7 OTHER

2.  VOLTAGE

3.  SPEED (SECONDS)

4.  FAIL SAFE: FAIL OPEN FAIL CLOSED

OPTIONS

1.  POSITIONER: PNEUMATIC – INPUT SIGNAL PSIG

ELECTROPNEUMATIC – INPUT SIGNAL

2.  LIMIT SWITCH:

NEMA RATING QUANTITY SWITCH TYPE

3.  SOLENOID VALVE:

VOLTAGE NEMA RATING NAMUR MOUNT

4.  POSITION INDICATOR:

5.  FEED BACK:

ELECTRIC ON/OFF PNEUMATIC ON/OFF 4-20 mA 1-5 VOLT

6.  SPEED CONTROL: OPENING CLOSING BOTH

7. AIR SUPPLY STATION: YES OR NO

*AIR SUPPLY STATION CONSISTS OF FILTER, REGULATOR, & LUBRICATOR

FOR USE WITH PNEUMATIC ACTUATOR PACKAGE

8. MANUAL OVERIDE: YES NO

9. HEATER & STAT (ELECTRIC ONLY): YES NO

10. MOTOR BRAKE (RECOMMENDED W/ BALL & BUTTERFLY VALVES): YES NO

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