Flowserve Corporation 765 South 100 East Phone: 801 373 3028
Flow Control Division Provo, Utah 84606-6160 Facsimile: 801 489 2228
Automation Business Unit www.owserve.com Email: actuators@owserve.com
© 2001, Flowserve Corporation, Provo, Utah
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Travel Stop Adjustments
The SuperNova Series actuators have unique, travel stop adjust-
ments in both the clockwise and counterclockwise directions. All
actuated valves require accurate travel-stop adjustments at both
ends of the stroke to obtain optimum performance and valve seat
life. The accumulation of tolerances in the adaption of actuators to
valves is such that there must be a range of adjustment for both
ends of the stroke to achieve the expected performance.
Ball and Plug Valves require precise adjustment at the open (CCW)
position to protect the seat from the flow media and the closed
(CW) position to assure absolute shut-off.
Butterfly Valves require precise adjustment at the closed position
to assure full shut-off, to prevent disc overtravel and damage to the
seat at the closed position and to assure maximum flow in the open
position.
Tandem Valves, where two valves are operated in tandem through
a single solenoid valve (eg., a 3-Way configuration), absolutely
require precise adjustment at both ends of the stroke to assure the
seating of both valves.
Stop Adjustments and Locations
View the actuator with the Air Ports facing you.
All actuators are factory lubricated for life, but still should be
protected from the elements and stored indoors until ready for
use. The ports of the actuator are plugged as supplied from the
factory. If actuators are stored for a long period of time prior to
installation, the units should be stroked periodically to prevent the
seals from taking a set.
Prior to assembly, check the mounting surfaces, the stem adaptor
and the bracket to assure proper fit. Manually open and close
the valve to insure freeness of operation. Be sure the valve and
Automax actuator rotate in the same direction and are in the
same position (i.e., valve open, actuator open). Secure the valve
with the stem vertical. Bolt the bracket to the valve and place the
stem adaptor on the valve stem. Position the actuator over the
valve and lower to engage the stem adaptor to the actuator shaft.
Continue to lower until the actuator seats on the bracket mount-
ing surface. In order to align the bolt holes, it may be necessary
to turn or stroke the actuator a few degrees and/or adjust the
actuator’s travel stops. Bolt the actuator to the bracket.
After consulting the valve manufacturer’s recommendations,
adjust the travel stop bolts of the actuator for the proper open and
closed valve positions. Pneumatically stroke the actuator several
times to assure proper operation with no binding of the stem
adaptor. If the actuator is equipped with an UltraSwitch or other
accessories, adjust them at this time.
To prolong actuator life use only clean, dry plant air. Lubricated
air is not required, however it is recommended particularly for
high cycle applications. Do not use lubricated air with positioners.
Both Directions
Actuator Fail Clockwise Counterclockwise
Type Position (CW) (CCW)
Double Acting Left End Cap Right End Cap
Spring Return CW Left End Cap Right End Cap
Spring Return CCW* Right End Cap Left End Turn
*The pistons are rotated 180° for CCW fail position
SuperNova SX-Series
Endcap Screw Adjustment Bolt Spring
Actuator Socket Size Socket Size Color Code
SX050 4mm 3mm white
SX063 5mm 4mm lt. green
SX085 6mm 5mm blue
SX100 6mm 6mm red
SX115 6mm 6mm yellow
SX125 8mm 6mm grey
SX150 8mm 8mm dk. green
LMR0021-1 (AUTO-6) 11/01
Page 1 of 4
Adjustment Bolt Location
(96 paginas)
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