Masoneilan VariPak Adjustable Cv Control Valves Instruction Manual
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Note: Ensure that the clevis is correctly positioned before
fitting the lever No. 1 on the bracket (108).
J. Reset adjustment knob (24) to the minimum Cv
position.
K. Couple plug stem clevis (104a) to lever No. 1 following
the normal reassembly procedure (step L. in the
"Reassembly" section on page 17).
L. Hook spring (114) in the appropriate hole in spring
clamp (115) (see figure 6).
M. Admit supply and signal pressures and complete
calibration. Refit cover (110) using the two screws
(109). If the valve is equipped with a handwheel, refit
the cover and turn the handwheel clockwise so that
it engages in lever arm stop (122). Tighten cover
screws (109).
N. Put the valve back into service.
Note:
- When replacing an Air-to-Close actuator with an Air-to-
Open actuator, do not forget to neutralize the limit stop
by screwing it down at the bottom of the piston.
- When replacing an Air-to-Open actuator with an
Air-to-Close actuator, set the limit stop to the opening
position.
AIR-TO-CLOSE ACTUATOR
AIR-TO-OPEN ACTUATOR
VariPak 28001
with single lever
VariPak 28002
with adjustable
Cv (2 levers)
*Only with type 7700 positioner
Figure 6 - Identification of lever pivot pin holes
