Flowserve Interseal SLC Series Bedienungsanleitung
Installation
Instructions
Experience In Motion
Interseal SLC Series
Self contained single cartridge
heavy duty slurry seal
TM
2
1 General Seal Installation Instructions
The following instructions are designed to simplify the installation of a typical SLC
Cartridge Slurry Seal. See Figure 1. By reading this manual and following its guide-
lines, seal performance can be improved by reducing the chances of premature failure
attributed 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. If any problems arise during
installation, Do Not Try to Force Anything.
These instructions are written for trained, experienced technicians who are familiar
with the basic principles and tools involved in the installation, care and service of
mechanical seals.
A complete reading of these instructions by personnel in contact with the equipment
is essential to safety. Incorrect installation, operation or maintenance can result in
personal injury or death to personnel and damage to the equipment.
For special problems encountered during installation, contact your nearest Flowserve
Sales and Service Representative or Authorized Distributor.
Typical SLC Cartridge Figure 1
Pin Sleeve
Stationary Face
Rotating Face
Rotating Face Body
Cone Spring
Sleeve Gasket
Spacer Ring (option)
Flange/Gland Bolt
Setting/Centering Plate
Snap Ring
U-Cup
Drive Washer Sleeve
Split Clamp/Drive Collar
Lip Seal
Snap Ring
Flange/Gland
Flange/Gland Gasket
Quench Option
Shown in Lower View
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.
3
2 Equipment Preparation for Mechanical Seal Installation
2.1 Follow plant safety regulations prior to equipment disassembly:
• lock out motor/driver and valves.
• wear designated personal safety equipment.
• relieve any pressure in the system.
• consult plant MSDS les for hazardous material regulations.
• vent and drain equipment before any work is performed in the
eld or removed to a maintenance facility.
2.2 Disassemble and clean all equipment to allow access to seal installation area.
2.3 When converting from a packed stufng box, replacement equipment parts may
be required such as taper bore covers, liners, and high efciency impellers.
These items should specically be designed for use with mechanical seals.
3 Equipment Checks
3.1 Radial and thrust bearings should be in new condition. If not, new ones should
be installed into the equipment.
3.2 The saddle ts of the bearing assembly should be checked for abnormal wear
and reconditioned if worn.
3.3 Ensure that all t locations on the pedestal and adapter are clean and free from
burrs.
3.4 Ensure that the bearing assembly is mounted correctly (central and square) to
the pump pedestal and securely fastened.
3.5 Clean dried product, rust, and oils from the pump shaft or shaft sleeve. Remove
all burrs and sharp edges from the shaft and shaft sleeve including sharp edges
of keyways and threads.
3.6 Replace worn shaft or shaft sleeve. Ensure that the shaft or shaft sleeve has a
1.57 mm (0.062 inch) x 30 degree chamber on the leading edge to help prevent
O-ring damage during seal installation.
3.7 The axial end oat of the equipment shaft must be set to the manufacturer’s
specications. As a guide 0.05 mm (0.002 inch) per inch of shaft diameter to a
maximum of 0.40 mm (0.016 inch) FIM. See Figure 2. Addition of shims or ma-
chining adjustments to the bearing end cover may be required to limit end play.
Check Axial Shaft Travel Figure 2
0.38 mm (0.015 inch) FIM (TIR) Maximum
Acceptable Axial Movement
4
3.8 Shaft radial run out should be less than 0.13 mm (0.005 inch) FIM (TIR).
See Figure 3. Turn shaft 360° and observe the movement. Excessive
movement may indicate a bent or warped shaft that needs replacement.
Check Radial Shaft Deection Figure 3
3.9 Make sure all seal housing bores, mounting surfaces, and uid line connections
are clean and free of burrs and sharp edges that might damage secondary seal-
ing elements (O-rings, V-rings, or gaskets).
4 Wet (impeller side) Cartridge Installation
This section describes the installation of the seal cartridge from the wet or impeller
side of the equipment case. If your cartridge is designed to install from the dry or bear-
ing side of the equipment case, skip to section 5.
4.1 Bolt seal adapter plate to equipment case/pedestal (hand tighten only).
4.2 Locate the seal t of the adapter to the shaft by use of a dial indicator or center-
ing jig. The equipment shaft must be concentric to the seal adapter bore to
within 0.25 mm (0.010 inch) FIM (TIR). See Figure 4. Seal life can vary with
improper alignment; poor shaft alignment will yield poor seal life.
Center Adapter Plate to Shaft Figure 4
Adapter to be Concentric with Shaft
within 0.25 mm (0.010 inch) FIM (TIR)
Centering Jig
0.13 mm (0.005 inch) FIM (TIR)
Maximum Acceptable Radial Run Out
5
4.3 For adapters provided with a centering jig, simply insert the centering jig into the
adapter and tighten adapter bolts, alternately adjusting the cover location until
the centering jig can be removed by hand.
Adapter Plate Mounting Surface Perpendicular to Shaft Figure 5
Adapter Mounting Surface to be
Perpendicular to Shaft within
0.25 mm (0.010 inch) FIM (TIR)
4.4 Dial indicate rear face of seal t in the adapter plate. This t must be perpendic-
ular to the shaft within 0.25 mm (0.010 inch) FIM (TIR). See Figure 5. If surface
is out of tolerance, correct by machining the faces of the locating ts. Be sure to
have all ts clean of dirt, rust and/or paint.
4.5 Apply a light coating of O-ring lubricant to the index nger and thumb and pull
seal sleeve and ange/gland O-ring elements through ngers to inspect for nicks
or cuts. Install O-rings in their proper groove locations. This process will prevent
an excessive amount of lubricant from being applied to O-ring elements (non-
petroleum based grease must be used with EPDM materials).
Caution: Do not apply anti-seize or other lubrication to the equipment shaft or
shaft sleeve. Keep shaft or shaft sleeves clean and dry. The use of lubricants
will cause improper clamping pressure by the seal split clamp/drive collar.
4.6 With the seal split clamp/drive collar pointing toward the bearing assembly,
slide the complete cartridge over the equipment shaft or shaft sleeve. Push seal
ange/gland back toward adapter plate. See Figure 6.
Important: Do not hammer or push against rotary face housing or seal sleeve.
Do Not Hammer or Push
on Rotating Face Body
or Seal Sleeve
Seal Adapter
Push on Flange/Gland to Slide
the Seal Over the Shaft/Sleeve
Install Wet Side Cartridge Figure 6
6
4.7 Slide retaining bolts through the rear face of the adapter plate and screw into
seal ange/gland. Evenly tighten retaining bolts to pull the seal into the adapter
t. See Figure 7.
Draw Cartridge into Adapter Using Attachment Bolts Figure 7
With the Spacer Ring Removed
Evenly Tighten Flange/Gland Bolts
to Start the Seal into the Adapter
Insert the Spacer Ring and
Continue Even Tightening
of the Bolts until the
Flange/Gland is Properly Seated
4.8 Once the seal ange/gland has started into the adapter t, remove the retaining
bolts and insert the spacer ring. Continue even tightening of the bolts until the
seal ange/gland is properly seated. See Figure 7. Some seals do not require
the use of the spacer rings; consult job drawing.
4.9 If seal is directly mounted on shaft and not on the pump sleeve install impeller
spacer hook sleeve (possibly modied), impeller, and suction cover.
4.10 Make any necessary impeller adjustments.
Important: Loosen bearing assembly and drive belts only enough to make
adjustment. Fully tighten bearing assembly bolts after adjustment.
Torque Value Chart N-m (ft-lb) Figure 8
Split Clamp/ Group 4-5 Taper
Drive Cap Ring Clamp/ Drive Collar
Screws Drive Cap Screws Set Screws
Fastener Alloy Alloy Stainless Alloy
Size Steel Steel Steel Steel
5/16” 33 - 35 27 - 30 14 - 16 18 - 20
(24 - 26) (20 - 22) (10 - 12) (13 - 15 )
3/8” 54 - 61 33 - 37 20 - 23 30 - 34
(40 - 45) (24 - 27) (15 - 17) (22 - 25)
1/2” 122 - 136 - 43 - 49 68 - 75
(90 - 100) (32 - 36) (50 - 55)
7
4.11 For installations with a 2 piece seal split clamp/drive collar; align the seal clamp/
drive collar split lines and alignment key with the seal sleeve slots. This will
ensure maximum clamping force. See Figure 14.
4.12 Evenly tighten the split clamp/drive collar SHCS (group 1-3 standard), the 3
piece tapered ring SHCS (group 4-5 standard), or the cup point drive set screws
(special use with non-hardened shaft or shaft sleeve) to the proper torque val-
ues. See Figure 8.
4.13 Remove centering/setting plate locking bolts. With a screwdriver, pry centering/
setting plates clear of seal ange/gland. Turn centering/setting plates over and
swing outward and secure with locking bolts. Keep centering/setting plates with
seal at all times. See Figure 9.
Remove Centering/Setting Plates Prior to Operation Figure 9
Centering/Setting plate shown in the stored
position for pump operation.
Centering/setting plate shown in the
installed position for shipping, seal
installation and maintenance.
A screwdriver is used to lever
the centering/setting plate out.
Note: With motor coupling disconnected (or drive belts loosened) check equip-
ment for free shaft rotation by manually turning by hand 1-2 revolutions. This is
also a good time to check for the proper motor rotation when electrical wires are
being connected. If hard rubs occur or for any subsequent impeller or bearing
adjustments, reverse steps 4.13, 4.12, 4.11, make adjustments, and then repeat
steps 4.11, 4.12, and 4.13. Motor coupling can be reconnected (or drive belts
tightened).
Seal installation is complete. Skip forward to section 6 for any optional features of
your seal.
5 Dry (bearing side) Cartridge Installation
This section describes the installation of the seal cartridge from the dry or bearing side
of the equipment case. This type of cartridge is commonly used on ANSI or back pull
out bearing equipment designs. If your cartridge is designed to install from the wet or
impeller side of the equipment case, consult section 4.
5.1 Apply a light coating of O-ring lubricant to the index nger and thumb and pull
seal sleeve and ange/gland O-ring element through ngers to inspect for nicks
or cuts. Install O-rings in their proper groove locations. This process will help
prevent an excessive amount of lubricant from being applied to the O-ring ele-
ments (non-petroleum based grease must be used with EPDM materials).
Caution: Do not apply anti-seize or other lubrication to the equipment shaft or
shaft sleeve. Keep shaft or shaft sleeves clean and dry. The use of lubricants
will cause improper clamping pressure by the seal split clamp/drive collar.
5.2 With the seal split clamp/drive collar pointing toward the bearing assembly,
slide the complete cartridge over the equipment shaft or shaft sleeve. Push seal
ange/gland back toward bearing housing. See Figure 10.
Important: Do not hammer or push against rotary face housing or seal sleeve.
8
5.3 Bolt seal adapter plate to equipment casing/pedestal (hand tighten only).
5.4 Locate the seal t of the adapter to the shaft by use of a dial indicator or center-
ing jig. The equipment shaft must be concentric to the seal adapter bore to
within 0.25 mm (0.010 inch) FIM (TIR). See Figure 11. Seal life can vary with
improper alignment; poor shaft alignment will yield poor seal life.
Install Dry Side Cartridge Figure 10
Do Not Hammer or Push
on Rotating Face Body
or Seal Sleeve
Push on Flange/Gland to Slide
the Seal Over the Shaft/Sleeve
Center Adapter Plate to Shaft Figure 11
Adapter to be Concentric with Shaft
within 0.25 mm (0.010 inch) FIM (TIR)
9
5.5 For adapters provided with a centering jig, simply insert the centering jig into the
adapter and tighten adapter bolts, alternately adjusting the cover location until
the centering jig can be removed by hand.
5.6 Dial indicate front face of seal t on the adapter plate. This t must be perpen-
dicular to the shaft within 0.25 mm (0.010 inch) FIM (TIR). See Figure 12. If
surface is out of tolerance, correct by machining the faces of the locating ts. Be
sure to have all ts clean of dirt, rust and/or paint.
Adapter Plate Mounting Surface Perpendicular to Shaft Figure 12
Adapter Mounting Surface to be
Perpendicular to Shaft within
0.25 mm (0.010 inch) FIM (TIR)
5.7 If seal is directly mounted on shaft and not on the equipment sleeve, install
impeller spacer hook sleeve (possibly modied) and impeller.
5.8 Slide seal ange/gland towards adapter to engage into the locating bore of the
adapter plate. Insert retaining bolts through ange/gland holes and screw into
front face of the adapter plate. Evenly tighten retaining bolts to pull the seal up to
the adapter t. See Figure 13.
Bolt Cartridge to Adapter Plate Face Figure 13
10
5.9 Install bearing assembly into equipment case. Make any necessary impeller
adjustments.
Important: Loosen bearing assembly and drive belts only enough to make
adjustment. Fully tighten bearing assembly bolts after adjustment.
5.10 For installations with a 2 piece seal split clamp/drive collar; align the seal clamp/
drive collar split lines and alignment key with the seal sleeve slots. This will
ensure maximum clamping force. See Figure 14.
5.11 Evenly tighten the seal split clamp/drive collar SHCS (group 1-3 standard), the 3
piece tapered ring SHCS (group 4-5 standard), or the cup point drive set screws
(special use with non-hardened shaft or shaft sleeve) to the proper torque values
listed. See gure 8.
5.12 Remove centering/setting plate locking bolts. With a screwdriver, pry centering/
setting plates clear of seal ange/gland. Turn centering/setting plates over and
swing outward and secure with locking bolts. Keep centering/setting plates with
seal at all times. See Figure 9.
Note: With motor coupling disconnected (or drive belts loosened) check equip-
ment for free shaft rotation by manually turning by hand 1-2 revolutions. This is
also a good time to check for the proper motor rotation when electrical wires are
being connected. If hard rubs occur or for any subsequent impeller or bearing
adjustments, reverse steps 5.12, 5.11, 5.10, make adjustments, and then repeat
steps 5.10, 5.11, and 5.12. Motor coupling can be reconnected (or drive belts
tightened).
6 Seals Fitted with Quench and Lip Seal Option
6.1 Connect clean, low pressure water to quench inlet. See Figure 14.
Correct Flange Orientation for Quench Port Connections Figure 14
Quench Outlet
.250 NPT
Quench Inlet
.250 NPT
Alignment Key
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