Flowserve 3400IQ Digital Positioner - Manual (Page 15)

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Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06
flowserve.com
5.2 Mounting to Standard Valtek Rotary Valves
(See Figure 4)
Figure 4: Standard Rotary Mounting
Positioner Bolts ¼-20 (4)*
* Located in appropriate
hole pattern as indicated on
bracket. (25, 50, 100/200)
Take-off Arm, Rotary
Lock Washer (2)
10-32 Bolt
10-32 Nut
Self-tapping Screws (2)
Spline Lever Adapter
10-32 Nut
Lock Washer
Follower Arm
Logix 3400IQ
Digital Positioner
Bracket Bolts -18 (2, not shown) 5 /
16
The standard rotary mounting applies to Valtek valve/actuator assemblies that do not have mounted
volume tanks or handwheels. 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. The tools required for the following procedure are:
• 5 ⁄
32
" Allen wrench
• 1/2" open-end wrench
• 7 ⁄
16
" open-end wrench
• 3 ⁄
8
" socket with extension
• 3 ⁄
16
" nutdriver
1. Fasten the spline lever adapter to the splined lever using two 6 x 1/2" self-tapping screws.
2. Slide the take-off arm assembly onto the spline lever adapter shaft. Insert the screw with star
washer through the take-off arm and add the second star washer and nut. Tighten nut with
socket so arm is lightly snug on the shaft but still able to rotate. This will be tightened after
linkage is correctly oriented.
3. Attach follower arm to positioner feedback shaft using the star washer and 10-32 nut.