Durametallic® X-200
Experience In Motion
Cartridge dual metal bellows seal
for standard and big bore
ANSI pumps
Installation
Instructions
Congratulations
You have just purchased a reliable, long-life product manufactured by
the leading manufacturer of sealing systems in the world. With proper
installation and operation, this X-200 seal can be a valuable contributor
to your operation by signicantly reducing the mean time between
planned maintenance (MTBPM) of your rotary equipment.
Description
This X-200 seal is a cartridge mounted end face welded metal bellows
mechanical seal, designed for ease of installation. No seal setting
dimensions are required. Removable setting devices provide proper
alignment. The welded metal bellows eliminates shaft fretting and resists
clogging or hang-up. Installation according to the following steps will
assure long trouble free life of the X-200 seal.
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.
Seal Chamber Requirements Figure 1
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
2
a
a
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.
sleeve OD TIR
To first obstruction
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
X-200 Dimensional Data
Figure 2
C E
D
B
F
.03"
Seal
A
Size
Note: Washers may be required for
stud sizes smaller than G
R
ota
tio
n
C
W
outlet
J
CCW
Rotation
outlet
M (N.P.T.)
Dimensional Data for X-200 Seal, inch
Seal Size
+0.000 A B B C D E F G H J M
-0.002 ±0.001 min. max. min. max. min. (N.P.T.)
1.125 1.000 1.750 1.875 1.78 1.69 2.00 1.02 0.375 2.75 3.75 0.375
*1.250 1.125 1.750 2.000 1.78 1.69 2.00 1.02 0.500 3.00 3.88 0.375
1.375 1.250 2.000 2.125 1.97 1.88 2.00 1.02 0.500 3.12 4.25 0.375
*1.500 1.375 2.000 2.250 1.97 1.88 2.00 1.02 0.375 3.25 4.25 0.375
1.625 1.500 2.250 2.500 1.97 1.88 2.00 1.02 0.375 3.75 4.75 0.375
1.750 1.625 2.375 2.625 1.97 1.88 2.00 1.02 0.500 3.75 4.75 0.375
1.875 1.750 2.500 2.750 1.97 1.88 2.00 1.02 0.500 3.75 5.00 0.375
2.000 1.875 2.625 2.875 1.97 1.88 2.00 1.02 0.500 3.88 5.00 0.375
2.125 2.000 2.750 3.000 1.97 1.88 2.00 1.02 0.625 4.12 5.12 0.375
2.250 2.125 2.875 3.250 1.97 1.88 2.00 1.02 0.625 4.38 6.00 0.375
2.375 2.250 3.000 3.375 1.97 1.88 2.00 1.02 0.625 4.62 6.50 0.375
2.500 2.375 3.250 3.625 2.16 2.06 2.09 1.11 0.625 5.00 6.38 0.375
2.625 2.500 3.375 3.750 2.16 2.06 2.09 1.11 0.625 5.00 6.62 0.375
2.750 2.625 3.500 3.875 2.16 2.06 2.09 1.11 0.750 5.75 7.25 0.375
2.875 2.750 3.750 — 2.16 2.06 2.62 1.58 0.750
†3.000 2.750 3.875 — 2.16 2.06 2.62 1.58 0.750
3.000 2.875 3.875 — 2.16 2.06 2.62 1.58 0.750
†3.125 2.875 4.000 — 2.16 2.06 2.62 1.58 0.750
3.125 3.000 4.000 — 2.16 2.06 2.62 1.58 As 0.750
†3.250 3.000 4.125 — 2.16 2.06 2.62 1.58 0.750
3.375 3.125 4.250 — 2.16 2.06 2.62 1.58 Required 0.750
3.500 3.250 4.375 — 2.28 2.19 2.75 1.71 0.750
3.625 3.375 4.500 — 2.28 2.19 2.75 1.71 0.750
3.750 3.500 4.625 — 2.28 2.19 2.75 1.71 0.750
3.875 3.625 4.750 — 2.28 2.19 2.75 1.71 0.750
4.000 3.750 4.875 — 2.28 2.19 2.75 1.71 0.750
4.125 3.875 5.000 — 2.28 2.19 2.75 1.71 0.750
4 - G Ø studs equally spaced on H B.C.
* this seal size uses the N-CBR inner seal rotary unit.
† preferred design for these shaft sizes. Use whenever possible.
flush
3
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 (follower ange).
1.4 Make sure the shaft or sleeve is free of burrs, cuts, dents,
or corrosion that might cause leakage past the sleeve gasket,
as shown on the assembly drawing. Replace worn shaft or
sleeve. Remove sharp edges from keyways and threads.
1.5 Make sure the seal housing face is clean and free of burrs, cuts,
dents, or corrosion that might cause leakage the gland gasket or
misalign the seal gland.
1.6 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 (C), minimum
and maximum seal housing bore (B), and the minimum distance
to the rst obstruction, (E) plus 0.125 inch.
1.7 Check gland bolting to ensure that bolt diameter (G) and bolt
circle (H) conform to the dimensions shown in Figure 2.
1.8 Handle the X-200 seal with care, it is manufactured to precise
tolerances. The sealing faces of the rotating face and stationary
face 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.
2 X-200 Seal Installation
Tools needed:
• Open end wrench
for gland nuts
• Allen wrenches
provided
• Silicone lubricant
provided
4
Install X-200 Seal Cartridge
Figure 3
2.1 Lubricate the shaft or sleeve OD lightly with silicone lubricant
provided and slide the complete X-200 cartridge seal onto
the shaft, Figure 3, with the end with the setting devices toward
the bearing housing.
Install pump backplate
Figure 4
2.2 Install the pump back plate (stufng box), Figure 4. Position the
X-200 seal gland ush connection, port a in Figure 7, in the
3:00 o’clock position for normal installations with CW rotation
(9:00 o'clock for CCW rotation) for optimum heat removal. Alternate
positioning of the gland may be necessary with some pump
designs to permit seal piping to clear the bearing housing. Refer
to the assembly drawing that is supplied with the seal for proper
positioning. Bolt the back plate in place on the bearing housing.
2.3 Position the X-200 cartridge gland with the gland gasket in
place against the seal chamber (stufng box) face, install at
washers on the studs to prevent misalignment, and tighten the
gland nuts evenly, cross staggering the adjustment of the nuts.
Do not over tighten.
2.4 Assemble the pump, adjust the bearings, set the impeller and
connect the coupling so that the shaft is in its operating axial
position. Any subsequent axial adjustment of the shaft requires
resetting of the seal. Connect pump piping, allow no pipe strain
on the pump casing.
5
2.5 Tighten the set screws
on the X-200 cartridge
collar with the Allen
wrench provided,
Figure 5.
2.6 Remove setting
devices by removing
the cap screws with the
Allen wrench provided,
Figure 6. Save the
setting devices for use
if pump impeller must
be reset or if the X-200
is removed for maintenance.
2.7 Turn the shaft by hand
to ensure free operation.
2.8 Pipe up the gland
connections to the
X-200 seal, see
section 3.
2.9 See Operational
Recommendations,
section 4, before
starting pump.
Tighten drive collar set screws
Figure 5
Remove setting devices
Figure 6
6
3 Piping
3.1 Pipe a product bypass ush from the pump discharge to the
X-200 seal ush port, a Figure 7. To maximize seal life,
Flowserve recommends that a product bypass ush be used
whenever possible with a X-200 seal installed in conventional
stufng box. A bypass ush is not necessary when an enlarged
tapered or cylindrical seal chamber is used. If a bypass ush is
not used, plug the ush port a .
3.2 Taps b and c in the gland are buffer / barrier uid inlet and
outlet ports. Which is the inlet port depends on the direction of
shaft rotation.
Shaft Rotation from Exposed End of Gland Figure 7
Clockwise Rotation (CW)
(most ANSI pumps)
Inlet Port c
Outlet Port b
b
CW
Rotation
c
Counterclockwise Rotation (CCW)
Inlet Port b
Outlet Port c
c
a
a
CCW
Rotation
b
7
3.3 For pressurized dual seal mode of operation, supply a clean
compatible barrier uid to the inlet port at a pressure at least 1.7
bar (25 psi) above the pressure of the product acting on the outside
of the inner seal. The barrier uid should be piped from the outlet
port past a pressure gauge and through a ow control valve to
waste or recovery system. The valve in the outlet line should be
adjusted to a ow adequate to remove seal generated heat and to
maintain the pressure between the X-200 inner and outer seals at
least 1.7 bar (25 psi) above the product pressure acting on the
outside of the inner seal. Flowserve can supply information on
barrier uid ow requirements based on seal size, product temperature, barrier uid characteristics, and shaft speed.
3.4 For unpressurized dual seal mode of operation, supply a clean
compatible buffer uid to the inlet port at a pressure below that of
the product acting on the outside of the inner seal. The buffer uid
should be piped from the outlet port past a pressure gauge and
through a ow control valve to waste or recovery system. The valve
in the outlet line should be adjusted to a ow adequate to remove
seal generated heat and to maintain the pressure between the
X-200 inner and outer seals below that of the product pressure
acting on the outside of the inner seal. Flowserve can supply
information on buffer uid ow requirements based on seal size,
product temperature, barrier uid characteristics, and shaft speed.
3.5 The Flowserve supply tank is designed to work with the X-200
seal to form a self-contained sealing system. The circulating
feature in the X-200 provides a positive buffer / barrier uid ow
from the seal cavity to the Supply Tank and back to the seal. In
most cases the natural cooling of the piping and tank are adequate
to remove seal generated heat. Cooling coils are available with the
supply tank to extend operating limits. The supply tank can be used
with the X-200 seal in the dual pressurized, Figure 8, or dual
unpressurized, Figure 9, operating modes.
3.6 Good piping practices:
• minimize line losses
• use large diameter tubing
• only upward sloping lines
• use long radius bends
• minimize component losses
• optimize for thermosyphon
• check rotation direction
• test for leaks
8
Dual pressurized X-200 with Supply Tank Figure 8
Bypass line
from pump
discharge
Orifice
option
Pressure source
normally open
Level switch (low)
1.2 m (4 feet)
maximum
0.45 -0.6 m
(1.5 - 2 feet)
minimum
Pressure
indicator
Pressure
switch
(low)
Supply
tank
assembly
Cooling
coils
Drain
normally
closed
Plan 11/53A
Dual unpressurized X-200 with Supply Tank Figure 9
Vent
Bypass line
from pump
discharge
Orifice
option
normally open
Level switch (high)
Level switch (low)
Pressure
indicator
Pressure
switch
(high)
Supply
tank
assembly
1.2 m (4 feet)
maximum
0.45 -0.6 m
(1.5 - 2 feet)
minimum
Cooling
coils
Drain
normally
closed
Plan 11/52
9
4 Operation
Following these recommendations will ensure maximum MTBPM of the
X-200 seal.
4.1 Do not exceed corrosion limits. The X-200 is designed to resist
corrosion by most chemicals. However, do not expose the X-200
materials of construction to products outside of their corrosion limits. The X-200 assembly drawing lists the materials of construction.
For chemical resistance ratings consult Flowserve.
4.2 Do not exceed the Pressure-Velocity (P-V) limits.
4.3 Do not exceed the temperature limits of the X-200. The materials of construction are listed on the assembly drawing. For the temperature limits of materials consult Flowserve. Turn on any cooling
water to the supply tank before start-up.
4.4 Do not start up or run the X-200 dry. Buffer / barrier uid must be
in the seal cavity at all times during pump operation.
For special problems encountered during installation, contact your
nearest Flowserve Sales and Service Representative or Authorized
Distributor.
10
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 Replace." 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.
11
TO REORDER REFER TO
flowserve.com
B/M #
F.O
.
FIS110eng REV 12/12 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.
© 2012 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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Singapore
Telephone: 65 6544 6800
Telefax: 65 6214 0541
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Telephone: 52 55 5567 7170
Telefax: 52 55 5567 4224
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