Flowserve MSS User Manual

Page 12

0.1“ (3 mm) spring gap is achieved
using the two 1/8“ Allen wrenches as
spacers. Tighten the shoulder screws
completely and lock seal drive to shaft.

Designs that incorporate set screws

in the seal drive, after tightening

sholder screws

, tighten the set

screws

to lock the seal drive to

the shaft.

The seal is now ready for operation.
See paragraph 8.0, „Starting up the
Machine“, before start-up.

Once more check the running pre-
cision as per paragraph 5..6 and the installation dimensions according the
assembly drawing.

The installation dimensions of the mechanical seal type MSS must apply to the

dimensions shown on the assembly drawing. Non-compliance of the information
shown on the assembly drawing may cause in damages.

For special problems encountered during installation, contact your nearest
Flowserve Sales and Service Representative or Authorized Distributor.

6.13 Installation of Non-Piloted MSS (see Figure 3).

6.14 Spray one end of the split gland gasket O-ring

with the adhesive accelerator

provided. Apply one drop of the adhesive provided to the other end. Position the
split O-ring around the shaft 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.

6.15 Remove the retainer halves

from the face of the gland halves

and save the

retainer halves and cap screws

for Step 6.0.

6.16 Position the gland ring halves

around the shaft and fasten them loosely together

using the shoulder screws

provided.

6.17 Use some silicone lubricant provided to hold the gland gasket O-ring in its groove

and position the gland on the seal chamber face by loosely tightening the nuts or.
(See paragraph 6.7).

6.18 Bond one of the split stationary face seat gasket O-rings

and lubricate as in

Step 6.14. Place the bonded O-ring in the gland counterbore.

Mount seal drive halves and set spring gap

Reference 6.1