1
Multi-turn actuators are high quality electro-mechanical devices. Possible damage can be avoided by
observing the following items.
Adjustment of position feedback transmitters, analog positioners and even limit switches and
mechanical stops may be required in the field after the automated valve is installed. Actuators with
digital communication boards require adjustment in the field–similar to a positioner.
1. TRANSPORT AND STORAGE
•
Transport to place of installation in sturdy packing.
•
Do not lift the actuator by the handwheel.
•
Store in well ventilated, dry room.
•
Protect against humidity from the floor by storing on a shelf or on a wooden frame.
•
Cover to protect against dust and dirt.
•
Apply corrosion protection agent to machined surfaces.
2. SERVICE CONDITIONS
AUMA multi-turn actuators can be used at following ambient conditions:
Model Temperature
SA
-20°F to +175°F (Standard)
SAL
-40°F to +140°F
SAH
+32°F to +250°F
SA(IP68)
-20°F to +175°F
SAR
-20°F to +140°F
3. MOUNTING TO THE VALVE/GEARBOX
Mounting and operation can be in any position.
•
Check whether output drive flange suits the valve/gearbox.
CAUTION:
Spigot at flanges should be loose fit!
For form A output drive the thread must correspond with thread of the valve stem. If not
ordered explicitly with thread, the stem nut is supplied unbored or with pilot bore (
Figure C
).
For machining the stem nut refer to Section 13.
Form B output drives are normally supplied with bore and one keyway (
Figure D
).
•
Check whether bore and keyway correspond with the input shaft of the valve or gearbox.
•
Degrease mounting surfaces at actuator and valve/gearbox thoroughly.
•
Apply lubricant to input shaft of the valve/gearbox.
