Flowserve SLM-6200 User Manual
SLM-6200
Self contained cartridge
medium duty slurry seal
Installation
Instructions
Experience In Motion
1 Cartridge Installation Instructions
The following instruction manual is designed to simplify the installation of the SLM-6200
slurry seal. The SLM-6200 is a dual (pressurized double) seal with a circulating device and
2 “barrier” uid connections.
By reading this manual and following its guidelines, seal performance can be improved
by eliminating the chances of premature failure due to improper installation. In addition to
these instructions, consult the seal assembly drawing included for your specic seal design,
materials of construction, critical dimensions, and any auxiliary piping connections.
As you go through this manual you will nd some of the instructions referenced with gure
numbers. These illustrations are provided to help you visualize what the instruction is trying
to explain. If these instructions are followed faithfully, the seal installation will be successful,
and maintenance personnel will understand the proper procedures to follow when pump
adjustment is necessary.
For special problems encountered during installation, contact your nearest Flowserve Sales
and Service Representative or Authorized Distributor.
Note: The SLM-6200 has been designed to leak water barrier uid into the process at
4 liters (1 gallon) per day. Barrier uid must be compatable and able to be relled while
pressurized. If another barrier uid is used leakage will increase.
Typical Dual SLM-6200 Cartridge Seal Figure 1
Inner Side:
Gland Gasket
Spring
Stator O-ring
Stator
Rotor
Rotor O-ring
Sleeve
Rotor Pin
Set Screw
Outer Side:
Retaining Screw
Gland
Rotor
Centering Plate
Stator O-ring
Stator
Sleeve Collar
Collar Snap Ring
Stator Spring
Sleeve O-ring
Rotor Snap Ring
Stator Pin
Gland Gasket
Gland
2
Spring Retainer Screw
Spring Retainer
Rotor Snap Ring
Rotor Pin
Sleeve O-ring
Rotor O-ring
Circulating Feature
The images of parts shown in these instructions may differ visually from the actual
parts due to manufacturing processes that do not affect the part function or quality.
2 Recommendations
To ensure that your SLM-6200 Mechanical Seal will provide you with the longest possible
life, we recommend the following:
2.1 New radial and thrust bearings be installed in the pump.
2.2 The saddle ts of the bearing assembly should not be worn.
2.3 The axial end oat of the pump shaft must not exceed 0.25 mm (0.010 inch). See
Figure 2.
Check Axial Shaft Travel Figure 2
0.25 mm (0.010 inch) Maximum
Acceptable Axial Movement
2.4 Shaft radial runout should be less than 0.0005 mm per mm (0.0005 inch
per inch) of shaft/sleeve diameter. See Figure 3. Turn the shaft through
360° and observe the range of indicator movement.
Check Radial Shaft Runout Figure 3
Maximum Acceptable Radial
Runout 0.0005 mm per mm
(0.0005 inch per inch) of shaft
diameter
2.5 The shaft should deect no more than 0.30 mm (0.012 inch) at the seal chamber
face. See Figure 4.
Check Radial Shaft Deection Figure 4
Shaft should Deect no more than
0.30 mm (0.012 inch)
3
2.6 Ensure that the shaft or shaft sleeve has a 1.6 mm (0.06 inch) x 30° chamfer on the
leading edge to prevent O-ring damage at seal installation.
2.7 Hardened shaft sleeves must not be used when cartridge sleeve locking is
accomplished by set screws bearing directly into the shaft sleeve. Any of the sleeve
collars that clamp the cartridge sleeve to the shaft sleeve may be used on hardened
shaft sleeves.
3 General Instructions
3.1 Ensure that the bearing assembly is mounted correctly (central and square) to the
pump pedestal and securely fastened.
3.2 Ensure that all t locations on the pedestal are clean and free of burrs.
3.3 Clean the pump shaft/sleeve surface, making sure it is clean of product and rust and
has no burrs.
3.4 If the pump design requires it, bolt seal adapter plate to equipment case/pedestal
(hand tighten only).
3.5 Locate the seal t of the adapter to the shaft by use of a dial indicator or centering jig.
The equipment shaft must be concentric to the seal adapter bore to within 0.38 mm
(0.015 inch). See Figure 5.
Center Adapter Plate to Shaft Figure 5
Centering Jig
Adapter to be Concentric
with Shaft within 0.38 mm
(0.015 inch)
4
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