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Step 3A. Installation of Head Assembly
1. Align any previously placed index marks on
head assembly and vessel body. This will
ensure correct alignment for port connections.
Do not rotate head assembly after insertion into
vessel as this may cause head seal to become
detached.
2. Hold head assembly square to axis of shell and
slide it straight in until a slight resistance is
felt.
3. Using both hands, firmly push head in as far as it
will go (a sharp, forceful thrust may be necessary
to push head seal into vessel bore.) When head
is in correct position, entire retaining ring groove
will be exposed.
Installing Head Assembly by hand
In some installations it may be advisable
to tighten a system-required permeate
port nipple or fitting into the Permeate
port before the head is assembled into
the vessel.
Do not tighten a component into the
Permeate port more than one turn past
hand tight.
Step 3A. Installation using Tool
1.
Align any previously placed index marks on
head assembly and vessel body. This will
ensure
correct
connections. Do not rotate head assembly
after insertion into vessel as this may cause
head seal to become detached.
CLOSING THE VESSEL
NOTE
alignment
for
2. Hold the head assembly square to axis
of the shell and slide it straight in until a
slight resistance is felt.
3. Slide tool (p/n 50733) into shell just
behind the head.
4. Tap
circumference with a dead-blow hammer
until retaining ring groove is fully
exposed.
5. Remove tool by pulling straight out. Do
not rotate.
Step 4. Install Head Interlock
1. Carefully wipe out any debris or moisture
from the head Retaining ring groove.
The groove must be clear and dry before
proceeding.
2. With the head assembly installed in the
shell, place the tip of the head Retaining
ring in the retaining ring groove. (The
non bent tab end)
Begin pushing the retaining ring into the
3.
groove as you rotate your hand around
the I.D. of the shell.
4. Continue until the entire retaining ring is
installed in the groove.
5. Verify that the retaining ring is fully seated
in the groove before proceeding.
port
Incorrect assembly or installation can
result in EXPLOSIVE HEAD failure.
tool
alternating
Installing Head Retaining ring
CAUTION
around
Page 16 of 38
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