SCF-6 Canister and Inline Splice Closures
Page 30
SRP 003-485 • Issue 6 • October 2006
KPA-0296
5.15
Install a Flash Test Air Valve
5.15.1
Install valve stem
Step 1
Apply a thin coat of UCN lubricant
retained previously to the threads of the
valve stem (p/n UCN-KT-FV, package
of five, purchased separately).
Step 2
Install the valve stem finger-tight, then
another half turn with a wrench, into
the grounding port as shown in
Figure 56.
5.15.2
Perform flash test
Step 1
Inject 12 to 14 psi of air into the closure
using a hand pump (Figure 57). Check
pressure regularly.
WARNING:
To avoid a potentially
hazardous situation that could result in
death or serious injury, do not exceed 14
psi (100 kpa) gauge pressure. The closure
could burst.
Step 2
Apply soapy water to the seal points and
watch closure for signs of leakage
(bubbling of soap). A correctly sealed
closure maintains pressure with no
leaks.
KPA-0295
Figure 56 — Valve Stem
Figure 57 —Pressurize Closure
KPA-0297
KPA-0289
Figure 58 — Ground Screw
Figure 59 — Ground Wire
Step 3
After the flash test has been performed and
the closure sealed correctly, carefully release
pressure, remove the air valve and allow air to
escape.
Step 4
Apply a thin coat of UCN lubricant retained
previously to the threads of a solid, two-piece
nonvented grounding screw (Figure 58).
Step 5
Install the screw into the end cap from the
outside of the end cap finger-tight, then
another half turn (approximately 40 to
60 in-lb).
5.16
Ground the Closure
Step 1
Remove the smaller insert from the grounding
screw.
Step 2
Connect a grounding cable (not supplied) to
the screw (Figure 59).
Step 3
Screw the smaller insert back into the screw.
Step 4
Tighten the insert using a small adjustable
wrench.
Step 5
Terminate the other end of the ground per
local practices.
