Johnson Controls VF Series Installation Instructions Manual page 2

proper pipe alignment (see
Fig. 3).
9. If the valve is equipped with
a pneumatic piston type
actuator, remove the
strapping from the actuator.
Move the disc to its normal
position and connect the
actuator clevis to the
appropriate hole in the
crankarm using the clevis
pin provided (see Fig. 4). If
two actuators are provided,
perform the above
procedure on each actuator.
Three-way Butterfly Valve
Installation
1. Align the piping and spread
the flanges apart enough to
allow the valve bodies and
tee to be located between
the flanges without actually
contacting the flange
surfaces (see Fig. 1).
2. Remove the protective
cardboard shields from the
valve faces.
3. Place the valve and tee
between the flanges and
center the assembly.
2 VF Technical Bulletin
4. Place the appropriate
gasket between the bare
end of the tee and the
adjacent flange. Install the
flange bolts to the bare end
of the tee and hand tighten
them. Check the alignment
again to insure proper
centering of the assembly
between the adjacent pipe
flanges.
5. Slowly open the disc of the
valve on the "run" side of
the tee (see Fig. 5), making
sure that the disc does not
contact the adjacent pipe
I.D.
6. Remove the flange
spreaders on the "run" side
of the tee and hand tighten
the flange bolts or cap
screws.
7. Repeat Steps 5 and 6 on
the "branch" side of the tee.
8. If the valve is equipped with
a pneumatic piston type
actuator, remove the
strapping from the actuator.
Position the disc of the
"run" valve to its normal
position and connect the
actuator clevis to the
appropriate hole in the
crankarm using the clevis
pin provided (see Fig. 4). If
two actuators are provided,
perform the above
procedure on each actuator.
9. Position the disc of the
"branch" valve to its normal
position. Refer to Fig. 5 for
the proper orientation of the
crankarm for the "branch"
valve.
10. Unstrap the interconnecting
linkage rod and secure the
loose end of the rod to the
appropriate crankarm.
11. Slowly stroke the fully
linked three-way assembly
two complete cycles while
checking for proper disc
clearance and pipe
alignment (see Fig. 3).
Tighten all flange bolts and
cap screws securely
according to the sequence
in Fig. 2.