Flowserve MSS Series - Manual (Page 9)

3 Installation of Non-Piloted MSS
3.1 Spray one end of the split gland gasket O-ring 18 with the
adhesive accelerator provided. Apply one drop of the adhesive
provided to the other end. Position the split O-ring around the shaft
carefully aligning the two ends and bond the joint ends together.
Hold for one minute to assure a suitable bond. Lubricate the O-ring
with the silicone lubricant provided. Place the bonded O-ring on the
seal chamber (stuffing box) face.
3.2 Remove the retainer halves 142 from the face of the gland halves
and save the retainer halves and cap screws 40.3 for Step 3.8.
3.3 Position the gland ring halves (1) around the shaft and fasten
them loosely together using the shoulder screws 414.1 provided.
3.4 Use some silicone lubricant provided to hold the gland gasket
O-ring 18 in its groove and position the gland on the seal chamber
face by loosely tightening the nuts or bolts.
3.5 Bond one of the split stationary face seat gasket O-rings 13
and lubricate as in Step 3.1. Place the bonded O-ring in the gland
counter-bore.
3.6 Install the stationary face halves 14 around the shaft with the
lapped face outward (non-lapped face is identified with a groove
or part marking) away from the seal chamber face. Insert the
stationary face into the gland bore and nest it in the O-ring 13 while
making sure there is no sealing face mismatch at joints. If mismatch
is present, gently remove it.
Important: Be sure the stationary face joints are in line with the
gland ring joints.
3.7 Bond and lubricate the second stationary face mounting O-ring
13 around the shaft as in Step 3.1 and place it over the stationary
face outer shoulder.
3.8 Securely attach the retainer halves 142 to the face of the gland
using cap screws 40.3 while positioning the retainer over the outer
stationary face mounting O-ring.
3.9 Tighten the shoulder screws 414.1 in the gland ring halves while
feeling for sealing face mismatch at the stationary face joints. If any
mismatch occurs, loosen the shoulder screws 414.1 and shift the
stationary face halves to remove the mismatch then continue with
tightening the shoulder screws.
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