Installation
Experience In Motion
Instructions
Five Star Seal 80 Series
Single, cartridge mounted, flexible stator pusher
seal designed for general service applications
84 and 85
TM
Description
The 84/85 seals are cartridge mounted mechanical seals, designed for
ease of installation and reliable operation. No seal setting dimensions
are required. Rotatable setting devices provide proper alignment. The
exible stationary face design compensates for inadvertent misalignment
of the seal chamber face. Multiple springs provide uniform face loading
and are external of the pumpage, resisting clogging or hang-up. Installa-
tion according to the following steps will assure long trouble free life of
the 84/85 seals.
1 Equipment Check
1.1 Follow plant safety regulations prior to equipment disassembly:
• lock out motor and valves.
• wear designated personal safety equipment.
• relieve any pressure in the system.
• consult plant MSDS les for hazardous material regulations.
1.2 Disassemble equipment in accordance with equipment
manufacturer’s instructions to allow access to seal installation area.
1.3 Remove existing mechanical seal and gland or compression
packing and packing gland.
1.4 Make sure the shaft or sleeve and the seal housing face are
clean and free of burrs, cuts, dents, or corrosion that might cause
leakage past the sleeve gasket O-ring or gland gasket. See
Figures 1 & 2. Replace worn shaft or sleeve if it is worn in the
sleeve gasket area. Remove sharp edges from keyways and
threads.
1.5 Check equipment dimensions to ensure that they are within the
dimensions shown in Figures 1 and 2. Critical dimensions include
shaft or sleeve OD (A), a chamber depth of at least dimension (G),
minimum and maximum seal housing bore (C), and the minimum
distance to the rst obstruction (K). See Figure 2.
2
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.
Seal Chamber Requirements Figure 1
To first obstruction
Face of seal housing to be square to the
axis of the shaft to within 0.0005 mm/mm
(0.0005 inch/inch) of seal chamber bore TIR
and have a 1.6
Gland pilot can be at either of these
register locations, concentric to within
0.125 mm (0.005 inch) of shaft or
Seal housing bore to have 3.2 μm
(125 μinch) R finish or better
Sleeve or shaft finish to be
0.8 μm (32 μinch) R or better
• Bearings must be in good condition
• Maximum lateral or axial movement of shaft (end play) = 0.25 mm (0.010 inch) TIR
• Maximum shaft runout at face of seal housing = 0.05 mm (0.002 inch) TIR
• Maximum dynamic shaft deflection at seal housing = 0.05 mm (0.002 inch) TIR
a
a
sleeve OD TIR
1.6 Check gland bolting to ensure that bolt diameter (M) and bolt
circle diameter (L) conform to the dimensions shown in Figure 2.
1.7 Handle the 84/85 with care, it is manufactured to precise
tolerances. The stationary and rotating sealing faces are of
special importance. They are lapped at to within three light
bands (34.8 millionths of an inch). Keep the seal faces perfectly
clean at all times.
μm (63 μinch) R finish or better
Shaft or sleeve OD
+0.000 mm (+0.000 inch)
-0.050 mm (-0.002 inch)
+0.000 mm (+0.000 inch) API 610/682
-0.025 mm (-0.001 inch) DIN/ISO
a
ANSI
84/85 Dimensional Data (inches) for standard bore seal chambers
Figure 2
A
C
D
G
F
K
J
NPT Flush
E
L
M
NPT Drain
(optional)
optional
NPT Quench
(optional)
3
84/85 Dimensional Data (inches) for standard bore seal
chambers continued Figure 2
A C D E F G J K L M
Shaft & Box Bore Gasket Gland Box Depth Dist to Obst Slot Bolt Bolt
Seal Size (Min) (Max) OD OD (Min) (Min) Circle Slot Dia.
1.000 1.750 2.010 2.250 4.000 1.025 1.087 1.663 1.725 2.743 0.438
1.125 1.750 2.135 2.375 4.000 1.025 1.087 1.663 1.725 2.868 0.438
1.250 2.000 2.260 2.500 4.000 1.025 1.087 1.663 1.725 3.087 0.531
1.375 2.000 2.385 2.625 4.000 1.025 1.087 1.663 1.725 3.212 0.531
1.500 2.250 2.510 2.750 4.500 1.025 1.087 1.663 1.725 3.337 0.531
1.625 2.375 2.635 2.875 5.000 1.025 1.087 1.663 1.725 3.462 0.531
1.750 2.500 2.760 3.000 5.500 1.025 1.087 1.663 1.725 3.587 0.531
1.875 2.625 2.885 3.125 5.500 1.025 1.087 1.663 1.725 3.712 0.531
2.000 2.750 3.010 3.250 5.400 1.025 1.087 1.663 1.725 3.837 0.531
2.125 2.875 3.135 3.375 6.000 1.025 1.087 1.663 1.725 4.118 0.688
2.250 3.250 3.760 4.000 6.000 1.025 1.087 1.663 1.725 4.739 0.688
2.375 3.375 3.885 4.125 6.000 1.025 1.087 1.663 1.725 4.864 0.688
2.500 3.250 3.760 4.000 6.000 1.025 1.087 1.663 1.725 4.989 0.688
2.625 3.625 4.135 4.375 6.000 1.025 1.087 1.663 1.725 5.114 0.688
2.750 3.750 4.260 4.500 7.000 0.860 0.922 1.828 1.890 5.239 0.688
2.875 3.875 4.385 4.625 7.000 0.860 0.922 1.828 1.890 5.364 0.688
3.000 4.000 4.510 4.750 8.000 0.860 0.922 1.828 1.890 5.489 0.688
3.125 4.125 4.635 4.875 8.000 0.860 0.922 1.828 1.890 5.614 0.688
3.250 4.375 5.135 5.375 8.000 1.548 1.610 2.298 2.360 6.345 0.813
3.375 4.500 5.260 5.500 8.000 1.548 1.610 2.298 2.360 6.470 0.813
3.500 4.625 5.385 5.625 8.500 1.548 1.610 2.298 2.360 6.595 0.813
3.625 4.750 5.510 5.750 8.500 1.548 1.610 2.298 2.360 6.720 0.813
3.750 4.750 5.510 5.750 8.750 0.893 0.955 1.828 1.890 6.708 0.813
4.000 5.250 6.010 6.250 9.000 1.420 1.482 2.553 2.615 7.220 0.813
4.250 5.500 6.260 6.500 9.500 1.420 1.482 2.553 2.615 7.470 0.813
4.375 5.625 6.385 6.625 9.500 1.420 1.482 2.553 2.615 7.595 0.813
4.500 5.750 6.510 6.750 10.000 1.420 1.482 2.553 2.615 7.720 0.813
4.625 5.875 6.635 6.875 10.500 1.420 1.482 2.553 2.615 8.032 1.000
4.750 5.750 6.573 6.813 9.500 1.298 1.360 2.298 2.360 7.719 0.813
4.875 6.125 6.885 7.125 11.000 1.420 1.482 2.553 2.615 8.282 1.000
5.000 6.500 7.510 7.750 11.000 1.709 1.771 2.673 2.735 8.907 1.000
5.125 6.625 7.635 7.875 11.500 1.709 1.771 2.673 2.735 9.032 1.000
5.250 6.750 7.760 8.000 11.500 1.709 1.771 2.673 2.735 9.157 1.000
5.375 6.875 7.885 8.125 11.500 1.709 1.771 2.673 2.735 9.282 1.000
5.500 7.000 8.010 8.250 11.500 1.709 1.771 2.673 2.735 9.407 1.000
5.625 7.125 8.135 8.375 11.500 1.709 1.771 2.673 2.735 9.532 1.000
5.750 7.250 8.260 8.500 12.000 1.709 1.771 2.673 2.735 9.657 1.000
5.875 7.375 8.385 8.625 12.000 1.709 1.771 2.673 2.735 9.782 1.000
6.000 7.500 8.510 8.750 12.000 1.709 1.771 2.673 2.735 9.907 1.000
6.500 8.500 9.510 9.750 12.000 1.987 2.049 2.923 2.985 10.907 1.000
7.000 9.000 10.010 10.250 14.000 1.987 2.049 2.923 2.985 11.407 1.000
4
2 84/85 Installation
Note: No seal setting measurements are needed to install the 84/85
seals. Instructions are for vertically split case end-suction ANSI
pumps. Modication of the procedure may be required for other
style pumps. Consult Flowserve.
2.1 Tools needed for installation:
• An open end wrench for the gland bolt nuts
• 1/8" and 3/16" hex wrench (provided)
• 5/16" and 3/8" open end wrench (provided)
• Silicone Lubricant
2.2 Lubricate the shaft or
Bearing Frame
Setting Device
Figure 3
sleeve lightly with silicone
lubricant.
2.3 Install the complete 84/85
cartridge assembly onto the
shaft or sleeve with the
setting devices near the
bearing housing.
See Figure 3.
2.4 Install the pump back
plate (seal chamber) and
bolt it in place on the bearing frame. See Figure 4.
Bearing Frame
Pump
Back
Plate
Figure 4
5
2.5 Position the 84/85 with the gland tight against the seal chamber
face. Turn the gland so that the ush tap is as close to the 12:00
o’clock position as possible and so that the ush piping will clear the
bearing frame. Tighten the gland nuts evenly in a diagonal
sequence. Do not overtighten the gland nuts, as this can warp
seal parts and cause leakage.
2.6 Assemble the pump.
Avoid pipe strain.
Align coupling properly.
2.7 With the impeller, shaft,
coupling, and bearings in
their nal operating positions,
tighten the 84/85 set screws.
See Figure 5.
2.8 Rotate the setting devices
180° from the drive collar and
retighten. See Figure 6.
Loosen the hex head bolts in
the bronze centering tabs,
rotate 180° to clear the drive
collar. Retighten the hex head
bolts to store the setting device
Figure 5
on the gland.
2.9 Turn the shaft by hand to
ensure unobstructed operation.
2.10 See Operational
Recommendations
before start-up.
6
Figure 6
3 Operational Recommendations
3.1 Install an adequate seal ush system. The 84/85 requires a clean
cool environment for maximum seal life. With a clean cool product,
use a bypass ush from the pump discharge (plan 11) or a bypass
ush to the pump suction (plan 13). With clean hot product, use a
bypass ush through a cooler (plan 21). With abrasive products or
products that are incompatible with the seal, use a ush from a
clean external source (plan 32).
Note: All piping plan designations used in these instructions are from
API 682. For the corresponding ASME B73 piping plan designation,
please add a 73 in front of the referenced piping plan.
3.2 Remove lock outs on pump and valves.
3.3 Do not start up the equipment dry to check motor rotation, etc.
Open valves to ood pump with product uid. Ensure that the seal
ush system is operating. Vent air from the casing of the pump and
the seal chamber before start-up.
3.4 Observe the start-up. If the seal runs hot or squeals, check the
seal ush system. Do not allow the equipment to run for any
extended time if the seal gets hot or squeals.
4 Operational Recommendations
4.1 Do not exceed corrosion limits. The 84/85 seal is designed
to resist corrosion by most chemicals. However, do not expose
the 84/85 materials of construction to products outside of their
corrosion limits.
4.2 Do not exceed the Pressure limits of the 84/85 seal, contact your
nearest Flowserve Sales and Service Representative or Authorized
Distributor.
4.3 Do not exceed the temperature limits of the 84/85 seal. The
materials of construction are listed on the box label. Turn on
cooling water to the supply tank before start up if the tank has coils.
For special problems encountered during installation, contact your
nearest Flowserve Sales and Service Representative or Authorized
Distributor.
7
TO REORDER REFER TO
flowserve.com
B/M #
F.O
.
5 Repair
This product is a precision sealing device. The design and dimension
tolerances are critical to seal performance. Only parts supplied by
Flowserve should be used to repair a seal. To order replacement
parts, refer to the part code and B/M number. A spare backup seal
should be stocked to reduce repair time.
When seals are returned to Flowserve for repair, decontaminate
the seal assembly and include an order marked "Repair or Re-
place." A signed certicate of decontamination must be attached.
A Material Safety Data Sheet (MSDS) must be enclosed for any
product that came in contact with the seal. The seal assembly will be
inspected and, if repairable, it will be rebuilt, tested, and returned.
FIS151eng REV 10/13 Printed in USA
To find your local Flowserve representative
and find out more about Flowserve Corporation,
visit www.flowserve.com
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When
properly selected, this Flowserve product is designed to perform its intended function safely during its useful life.
However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used
in numerous applications under a wide variety of industrial service conditions. Although Flowserve can provide
general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user
must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and
maintenance of Flowserve products. The purchaser/user should read and understand the Installation Instructions
included with the product, and train its employees and contractors in the safe use of Flowserve products in connection
with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for
informative purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance
thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any
matter with respect to this product. Because Flowserve is continually improving and upgrading its product design,
the specifications, dimensions and information contained herein are subject to change without notice. Should any
question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of
its worldwide operations or offices.
© 2013 Flowserve Corporation
USA and Canada
Kalamazoo, Michigan USA
Telephone: 1 269 381 2650
Telefax: 1 269 382 8726
Europe, Middle East, Africa
Roosendaal, the Netherlands
Telephone: 31 165 581400
Telefax: 31 165 554590
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Telephone: 65 6544 6800
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