Logix
®
Digital Positioners FCD LGENIM0110-0 05/16
flowserve.com
16
18.2 Mounting to Standard Valtek Rotary
Valves
The
standard
rotary
mounting
applies
to
Valtek
valve/actuator assemblies that do not have mounted
volume tanks or hand-wheels. The standard mounting uses
a linkage directly coupled to the valve shaft. This linkage
has been designed to allow for minimal misalignment
between the positioner and the actuator. Refer to
Error!
Reference source not found.
6 through 9.
1
Fasten the spline lever adapter to the splined lever
using two 6 x 1/2" self-tapping screws.
2
Attach follower arm to positioner feedback shaft using
the star washer and 10-32 nut.
3
Determine the rotation of the valve. Slide the take-off
arm onto the spline lever adapter shaft. Orient the
take-off arm to the starting point of the valve rotation
and make sure that it will match up with the rotational
range of the positioner follower arm. Insert the screw
with star washer through the take-off arm and add the
second star washer and nut and tighten.
4
Using four 1/4-20 x 1/2" bolts, fasten positioner to
universal bracket using appropriate hole pattern
(stamped on bracket).
5
Using a ½” end wrench and two 5/16-18 X ½” bolts,
attach bracket to actuator transfer case pad. Leave
these bolts slightly loose until final adjustments are
made.
6
Rotate the follower arm so the follower pin will slide
into the slot on the take-off arm. Adjust the bracket
position as needed noting the engagement of the
follower pin and the take-off arm slot. The pin should
extend approximately 2 mm past the take-off arm.
When properly adjusted, securely tighten the
bracketing bolts.
7
Rotate follower arm so the follower pin will slide into
the slot on the take-off arm. Over-rotate the follower
arm if needed so the arm moves freely through the
intended travel.
NOTE:
The feedback shaft has a clutch mechanism
that allows for over-rotation of the shaft for easy
adjustments.
8
Adjust the bracket position as needed noting the
engagement of the follower pin and the take-off arm
slot. The pin should extend approximately 1⁄16" past
the take-off arm. When properly adjusted, securely
tighten the bracketing bolts.
Figure 6: Valtek Rotary Take-Off Arm
Spline
Lever
Adapter
Take-Off
Arm
Assembly
Figure 7: Valtek Rotary Follower Arm
