StarPac Intelligent Control System FCD VLENIM0066-02 02/10
18
®
The optional rotary mounting applies to Flowserve Valtek valve/actuator assemblies that are equipped with moun-
ted volume tanks or handwheels. The optional mounting uses a four-bar linkage coupled to the valve shaft.
The follow tools are required:
• 3/8” open-end wrench
• 1/2” open-end wrench
1.
Using a 1/2” open-end wrench and two 5/16-18 x 1/2” bolts, attach bracket to actuator transfer case pads.
Leave bracket loose to allow for adjustment.
2.
Using four 5/16”-18 x 5/8” bolts and a 1/2” open-end wrench, fasten positioner to universal bracket, using the
four-hole pattern that locates the positioner the farthest from the valve. Rotate positioner 90 degrees from
normal so gauges are facing upward.
3.
Attach follower arm to positioner feedback shaft, using the star washer and 10-32 nut.
4.
Attach tripper and tripper clamp to valve shaft using two 1/4-20 bolts and two 1/4-20 locknuts. Leave tripper
loose on shaft until final adjustment.
5.
Thread ball joint linkage end to tripper and tighten (thread locking compound such as Loctite is recommended
to prevent back threading). Adjust the length of tie rod so follower arm and tripper rotate parallel to each
other (the rod must be cut to the desired length). Connect the other ball joint end to follower arm using a star
washer and 10-32 nut.
6.
Tighten bracket and tripper bolting.
7
. Check for proper operation, not direction of rotation.
WARNING
: If rotating in wrong direction, serious damage will occur to the positioner and/ or linkage. Check
air action and stroke direction carefully before initiating operation.
8.4 Tubing Positioner to Actuator
The StarPac 3 positioner is insensitive to supply pressure changes and can handle supply pressures from 30 to 150
psig. A supply regulator is recommended if the customer will be using the diagnostic features of the StarPac 3 but is
not required. In applications where the supply pressure is higher than the maximum actuator pressure rating a supply
regulator is required to lower the pressure to the actuator’s maximum rating ( not to be confused with operating range).
An air filter is highly recommended for all applications where dirty air is a possibility.
NOTE
: The air supply must conform to ISA Standard ISA 7.0.01 (a dew point at least 18°F below ambient
temperature, particle size below five microns – one
micron recommended – and oil content not to exceed one part per million).
Air-to-open and air-to-close are determined by the actuator tubing, not the software. When air action selection is made
during configuration, that selection tells the control which way the actuator has been tubed. The top output is labeled
Output 1. Output 1 should be tubed to the side of the actuator that must receive air to begin the correct action on increa-
sing signal. Verify that tubing is correct prior to a stroke calibration. Proper tubing orientation is critical for the positioner
to function correctly and have the proper failure mode. Refer to Figure 1 and follow the instructions:
STOP!
