DeZURIK
3-20” BAW AWWA Butterfly Valves
D10386
Page 14
August 2013
Reassembling Valve
(Continued)
5. Connect the disc to the shaft:
•
On sizes 3–12", align and center the flat on the shaft with the tapped hole in the disc. See
Figure 4. On sizes 3–6", apply one bead of Loctite 242 along half the depth of the threads
tapped hole; on sizes 8–12", apply two beads, on opposite sides. Apply one bead to the
threads of the torque plug (A10) and screw the torque plug into the disc and tighten to the
torque shown in Table B.
Table B Plug Torque
Valve
Size
Torque,
Ft. Lbs.
3
13+/-2
4
20 +/-2
6
60+/-5
8
85+/-5
10
130+/-5
12
190+/-5
Figure 4 - Disc-to-Shaft
Connection on 3–12"
•
On sizes 14–16", align and center the
flat on the shaft with the tapped hole in
the disc. Insert the pin (A4) into the
mating hole in the disc (A2) so that the
flat on the pin is centered on the flat on
the shaft. Tap the pin firmly into
position with a hammer and punch until
the hammer bounces back when the
pin is struck. Apply one bead of
Loctite242 to the threads of set screw
(A10) and one bead along half the
depth of the threads in the tapped hole
above the pin. Tighten the set screw to
75±5 ft. lbs. See Figure 5.
Figure 5—Disc-to-Shaft
Connection on 14–20"