John Crane 5625, 5625P Installation, Operation & Maintenance Instructions Manual

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

oreword

F

These instructions are provided to familiarize the user with the seal
and its designated use. The instructions must be read and applied
whenever work is done on the seal, and must be kept available for
future reference.

PAGE

1

Installation, Operation & Maintenance Instructions

ATTENTION

If the seal is to be used for an application other than that originally
intended or outside the recommended performance limits, John Crane
must be contacted before its installation and use.

Any warranty may be affected by improper handling, installation, or use
of this seal. Contact John Crane for information as to exclusive product
warranty and limitations of liability.

If questions or problems arise, contact your local John Crane representative
or the original equipment manufacturer, as appropriate.

ATTENTION

These instructions are for the installation and operation of
a seal as used in rotating equipment and will help to avoid
danger and increase reliability. The information required
may change with other types of equipment or installation
arrangements. These instructions must be read in
conjunction with the instruction manuals for both the
pump and any ancillary equipment.

John Crane mechanical seals are precision products and
must be handled appropriately. Take particular care to
avoid damage to lapped sealing faces and to flexible
sealing rings. Do not excessively compress the seal
before or during installation.

Safety Instructions

1. The following designations are used in the installation instructions to
highlight instructions of particular importance.

NOTE: Refers to special information on how to install or

Refers to special information or instructions directed

ATTENTION

Refers to mandatory instructions designed to

!

2. Installation, removal and maintenance of the seal must be carried out
only by qualified personnel who have read and understood these
installation instructions.

3. The seal is designed exclusively for sealing rotating shafts. The
manufacturer cannot be held liable for use of the seal for purposes
other than this.

4. The seal must only be used in technically perfect condition and
must be operated within the recommended performance limits in
accordance with its designated use set out in these installation
instructions.

operate the seal most efficiently.

towards the prevention of damage to the seal or its
surroundings.

prevent personal injury or extensive damage to the
seal or its surroundings.

Before Starting the Equipment

1. Check the pump at the coupling for proper alignment of the driver
or motor.

2. Ensure that the gland plate nuts/bolts are securely tightened
according to the pump manual instructions, and that all screws are
securely fastened.

3. Complete the assembly of the pump, and turn the shaft (by hand if
possible) to ensure free rotation.

4. Consult all available equipment operating instructions to check for
correctness of all piping and connections, particularly regarding seal
recirculation/flush, heating or cooling requirements, and services
external to the seal.

This mechanical seal is designed to operate in a liquid

ATTENTION

5. Check that the seal chamber fluid lines are open and free of any
obstruction, and ensure that the seal chamber is properly vented
and filled with liquid - refer to the pump instruction manual.

so the heat energy it creates is adequately removed.
Therefore, the following check should be carried out
not only after seal installation, but also after any
period of equipment inactivity.

5. If the pumped fluid is hazardous or toxic, appropriate precautions
must be taken to ensure that any seal leakage is adequately
contained. Further information on sealing hazardous or toxic fluids
should be obtained from John Crane prior to seal installation.

6. Fluorocarbon components should never be burned or incinerated
as the fumes and residues are highly toxic. If fluorocarbons are
accidentally heated above 400˚C/750˚F, they can decompose.
Protective gloves should be worn as hydrofluoric acid may be present.

7. PTFE components should never be burned or incinerated as the
fumes are highly toxic.

ATTENTION

!

WARNING: Seal installation should be handled only by qualified

Dry-running - often indicated by a squealing noise from
the seal area - will cause overheating and scoring or other
damage to the sealing surfaces, resulting in excessive
leakage or a much shortened seal life.

Before start-up, ensure that all personnel and
assembly equipment have been moved to a safe
distance so there is no contact with rotating parts
on the pump, seal, coupling, or motor.

personnel. If questions arise, contact the local
John Crane representative. Improper use and/or
installation of this product could result in injury to
the person and/or harmful emissions to
the environment, and may affect any warranty
on the product. Please contact John Crane for
information as to exclusive product warranty
and limitations of liability.

63



BORE

SHAFT OR SLEEVE

0.040 LG. X 20˚ CHAM.

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

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63

0D +0.000"

- 0.002"

0.040"

20˚

MOVE SHAFT IN AXIAL DIRECTION
BY HAND. NOTE MEASUREMENT
ON DIAL INDICATOR

MOUNT
DIAL INDICATOR
ON SHAFT

























TURN SHAFT BY HAND AND NOTE
MEASUREMENT ON DIAL INDICATOR

MOUNT
DIAL INDICATOR
ON SHAFT

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



TURN SHAFT BY HAND AND NOTE
MEASUREMENT ON DIAL INDICATOR

MOUNT
DIAL INDICATOR
ON SEAL CHAMBER
FACE

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

eneral Instructions

G

1. Study the engineering layout drawing to confirm the proper seal

arrangement for the pump being used. Type 5625 and 5625P seals
are designed for versatility and can be assembled in various ways.
The following instructions describe the standard configurations.

2. To assure satisfactory operation, handle seal with care. Take particular
caution to see that the lapped sealing faces are not scratched or
damaged.

PAGE

2

Installation, Operation & Maintenance Instructions

art Name

P

1 Mating Ring 7 Collar 13 Sleeve Adapter*

2 O-ring 8 Set Screws 14 Gasket

3 Seal Head Assembly 9 Spacers 15 O-ring
4 O-ring 10 Cap Screws 16 Snap Ring

5 Sleeve Assembly 11 Gland Plate Assembly 17 O-ring

6 O-ring 12 Gland Adapter 18 Snap Ring

*Or pumping ring for 5625P.

Typical Type 5625 Dual Metal Bellows Cartridge
Seal Arrangement

15

14

12

17 46 5161321813 8

Inboard

Side

Preparing the Equipment

1. Check seal chamber dimensions and finishes.

Outboard

11

Side

Typical Type 5625P (Pumping Ring) Dual Metal Bellows
Cartridge Seal Arrangement

15

14

12

9

10

7

17 46 5161321813 8

Inboard

Outboard

Side

3.Determine squareness of seal chamber face to shaft:
Rotating Mating Ring

- 0.005" FIM max.

Rotating Seal Head

- 0.002" FIM max.

Side

11

9

10

7

2. Measure axial end play (0.003" FIM max.).

NOTE: If measured dimensions exceed those values given, correct the equipment to meet specifications prior to seal installation.

4.Measure shaft runout (0.002" FIM max.).

SLOT

WIDTH

M

N

SLOT

WIDTH

M

N

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Type 5625 Dual Metal Bellows Cartridge Seal Assembly

Assemble the Type 5625 or 5625P as follows, referring to the applicable
engineering layout drawing.

NOTE: These instructions apply to a rotating mating ring configuration.

The seal assembly and mating ring positions could be reversed
should an application require.

NOTE: Elastomeric O-rings can be damaged or destroyed if care is not

taken. Prior to assembly of O-ring into groove, make sure groove
is clean and free of foreign materials. Lubricate both groove and
O-ring prior to installation with light lube oil (SAE #10 or #20) or
silicone grease (such as Dow Corning compound #4.) For ethylene
propylene elastomers, do not lubricate with petroleum products.

1. Place gland plate on table with gasket side facing up.

2. Install lubricated O-ring into outside diameter (OD) groove of mating
ring.

3. Stand sleeve on its base and slide mating ring over sleeve, align pins
and press in place.

4. Install set screws in collar.

5. Loosely attach the spacers to the collar with cap screws.

PAGE

3

Installation, Operation & Maintenance Instructions

6. Set the gland plate assembly gasket side down on table. Install collar on
gland plate assembly and engage spacers into groove, aligning spacers
with pipe taps of gland plate. Uniformly finger tighten the cap screws.
This sets the radial spacing of the cartridge.

7. Install lubricated O-ring into outside diameter (OD) groove of seal
assembly rear adapter.

8. Insert seal head assembly in gland plate adapter, align pins and press
in place.

9. Clean faces of primary and mating rings with denatured alcohol and a
lint-free cloth.

10. Stand sleeve on its base and slide seal assembly over sleeve until seal
faces touch.

11. Install lubricated O-ring into ID groove of sleeve adapter.*

12. Slide sleeve adapter over sleeve, aligning pins of adapter with pins of

sleeve. Push down to engage drive flats until adapter stops at step of
sleeve.

13. Carefully slide snap ring over the end of sleeve. Using assembly tool,
push the snap ring in place inside the sleeve adapter until it snaps in

Type 5625 Dual Metal Bellows Cartridge Seal Assembly (cont.)

place. Be careful not to scratch the sleeve adapter!

14. Install lubricated O-ring into outside diameter (OD) groove of outboard
mating ring.

15.Slide mating ring over sleeve, align pins and press in place.

16. Install lubricated O-ring into outside diameter (OD) groove of outboard seal

assembly rear adapter.

17. Place gland plate onto table with gasket side up.

18. Insert seal assembly in gland plate, align pins and press in place.

Turn gland plate over and confirm that rear adapter is flush with
end of gland plate.

19. Clean faces of primary and mating rings with denatured alcohol
and a lint-free cloth.

20. Insert O-ring in face groove of gland plate.

21. Making sure seal assembly does not fall out, slide gland plate over

sleeve until seal faces touch.

22. Carefully rotate gland plate until holes in sleeve are lined up with the
collar set screws.

23. Carefully press down on gland plate and install snap ring over the end
of sleeve. Do not over compress gland plate or this may damage

the seal.

24. Tighten set screws until they start to enter the sleeve ID.

25. Uniformly tighten cap screws on spacers.

26. Install gasket and sleeve O-ring.

27. Pressure test according to John Crane Standard QA-5-0569.

*For 5625 or pumping ring for 5625P.

Typical Type 5625 Installation Dimensions Typical Type 5625P Installation Dimensions

L91 MIN. BOX DEPTH

L92

*MIN.

TURN

DIAM.

D4

D3

D1

*Oversize bore seals only

L90 MIN. NEAREST OBSTRUCTION

L56

L12

L23

L39

D26

L91 MIN. BOX DEPTH

*MIN.
TURN
DIAM.

D4

D3

D1

*Oversize bore seals only

L92

L90 MIN. NEAREST OBSTRUCTION

L56

L12

L23

L39

D26

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Installation, Operation & Maintenance Instructions

PAGE

4

Type 5625/5625P Dual Cartridge
Dimensional Data (inches)

Seal D4

Size/D1 D3 Min. Max. D26 L12 L23 L39 L56 L90 L91 L92 M N

1.000 1.564 1.625 1.889 4.000 3.705 1.353 1.954 0.531 2.000 1.876 1.751 0.525 2.805

1.125 1.689 1.750 2.015 4.125 3.851 1.446 2.062 0.531 2.125 1.914 1.789 0.525 2.933

1.250 1.812 1.875 2.294 4.250 3.851 1.446 2.062 0.531 2.125 1.914 1.789 0.525 3.213

1.375 1.939 2.000 2.421 4.375 3.851 1.446 2.062 0.531 2.125 1.914 1.789 0.525 3.338

1.500 2.187 2.250 2.680 4.875 3.995 1.487 2.125 0.593 2.187 1.995 1.870 0.525 3.599

1.625 2.312 2.375 2.812 5.000 3.995 1.487 2.125 0.593 2.187 1.995 1.870 0.562 3.766

1.750 2.420 2.480 2.918 5.250 3.995 1.487 2.125 0.593 2.187 1.995 1.870 0.562 3.875

1.875 2.562 2.625 2.918 5.250 3.995 1.487 2.125 0.593 2.187 1.995 1.870 0.562 3.875

2.000 2.687 2.750 3.015 5.500 4.355 1.601 2.312 1.063 2.375 2.167 2.042 0.562 4.000

2.125 2.812 2.875 3.360 5.859 4.355 1.601 2.312 0.593 2.375 2.167 2.042 0.687 4.469

2.250 2.937 3.000 3.485 6.500 4.355 1.601 2.312 0.593 2.375 2.167 2.042 0.687 4.566

2.375 3.062 3.125 3.610 6.500 4.545 1.717 2.466 0.625 2.528 2.204 2.079 0.687 4.719

2.500 3.312 3.375 3.891 6.750 4.545 1.717 2.563 0.625 2.625 2.107 1.982 0.687 5.000

2.625 3.562 3.625 4.062 6.750 4.594 1.625 2.500 0.625 2.562 2.219 2.094 0.687 5.170

2.750 3.562 3.625 4.062 6.750 4.594 1.625 2.500 0.625 2.562 2.219 2.094 0.687 5.170

2.875 3.687 3.750 4.186 7.000 4.594 1.725 2.500 0.625 2.562 2.219 2.094 0.687 5.312

3.000 3.937 4.000 4.469 7.750 4.594 1.787 2.562 0.685 2.625 2.157 2.032 0.812 5.720

Installing the Seal

1. Before starting the installation, read the following instructions carefully.

2. Remove the seal from its packaging, inspect for any damage, and
wipe clean.

3. The equipment should be clean and meet the specifications noted in
the “Preparing the Equipment” section. Lubricate sleeve O-ring with
lubricant recommended in chart below. Lubricate shaft sparingly.
Lubricate gland plate bolts/nuts as required.

ELASTOMER LUBRICANT

Fluoroelastomer Vegetable Oil, Animal Oil, Mineral-Hydrocarbon Oils,
(i.e. Viton®) Soap Solution, Parker ‘Super-O-Lube’, Silicone Grease

Ethylene Propylene Vegetable Oil, Polywater®, Soap Solution, Glycerine,

Propylene Glycol, Silicone Grease

Perfluoroelastomer Vegetable Oil, Animal Oil, Mineral-Hydrocarbon Oils
(i.e. Kalrez®)

NOTE: Always use a lubricant that is compatible with your machinery and product.
Use lubricant sparingly, only enough to install seal with ease.

Viton and Kalrez are registered trademarks of DuPont.
Polywater is a registered trademark of American Polyware Co.

Type 5625/5625P Oversize Bore Dual Cartridge
Dimensional Data (inches)

Seal D4 Min.

Size/D1 D3 Min. Max. D26 L12 L23 L39 L56 L90 L91 L92 M N Turn Diam.

1.375 1.939 2.875 3.023 5.375 3.851 1.446 2.062 0.625 2.125 1.914 1.789 0.562 4.062 3.268
.750 2.420 3.500 3.925 6.500 3.995 1.487 2.125 0.656 2.187 1.995 1.870 0.687 5.093 3.885

1

.875 2.562 3.625 3.734 6.500 3.995 1.487 2.125 0.656 2.187 1.995 1.870 0.687 5.093 4.006

1

2.125 2.798 3.875 4.250 7.156 4.355 1.570 2.282 0.749 2.407 2.198 2.073 0.687 5.687 4.264

2.500 3.312 4.750 4.875 8.000 4.545 1.697 2.407 0.656 2.532 2.263 2.138 0.687 6.062 5.139

2.625 3.562 4.625 4.740 8.000 4.594 1.788 2.500 0.749 2.562 2.219 2.094 0.687 6.062 5.000
.750 3.551 4.750 4.875 8.000 4.594 1.697 2.407 0.656 2.532 2.312 2.187 0.687 6.062 5.139

2

4. Make sure the gland adapter gasket is properly positioned, and
that collar set screws do not extend past sleeve ID. Slide complete
cartridge seal assembly onto shaft. Position gland plate so pipe
connection #1 is at or near top dead center for ANSI pumps. For DIN
pumps, position gland plate so slot between pipe connections #2
and #3 is at or near top dead center. Slide cartridge onto studs (if
applicable) until gasket is flush against the face of seal chamber.
Hand tighten gland plate bolts/nuts.

5. Reassemble pump and make all necessary impeller adjustments.

6. Continue tightening gland plate bolts/nuts in an alternating pattern
until secure (1/4 turns, 180˚ apart), with gland adapter and face of
pump seal chamber metal-to-metal. Do not over-stress or distort
gland plate.

7. Tighten collar set screws evenly (1/4 turns, 180˚ apart), securing
cartridge seal to shaft.

8. Remove spacers and save.

9. Make appropriate piping connections to seal assembly.

Installing the Seal (cont.)

O-RING

GLAND BOLTS

SET SCREWS

SPACERS

CAP
SCREWS

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Installing the Seal (cont.)

The piping should follow the guidelines established in the John Crane
Manual LE-Plan 52/53-A. It is also recommended that a Plan 11 (by­pass from discharge) be used with the standard Plan 52/53. For DIN
pumps rotate gland 135˚ CCW. Use port #3 as inlet and #4 as outlet.
Plug 1 and 2.

Preferred

Port #1 - Outlet/Vent
Port #2 - Inlet
Port #3 - Plugged
Port #4 - Plugged

Clockwise

Rotation

Plugged

Outlet “O”

Inlet “I”

Option #1

Port #1 - Vent
Port #2 - Inlet
Port #3 - Plugged
Port #4 - Outlet

Outlet “O”

PAGE

5

Installation, Operation & Maintenance Instructions

Vent (Plugged)

Inlet “I”

Clockwise

Rotation

Direction of view is from

the driver end of pump.

Drain (Plugged)

Installing the Seal (cont.)

For Counter Clockwise Shaft Rotation:

The piping should follow the guidelines established in John Crane
Manual LE-Plan 52/53-A. It is also recommended that a Plan 11 (by­pass from discharge) be used with the Plan 52/53. For DIN style
bolting pattern, rotate gland 45˚ clockwise. Same porting instructions
apply, Inlet 4 and Outlet 1. Do not utilize port #2 or #3 for the outlet.

Option #1 requires
manual venting of
entrapped air through
port #1 prior to start-up.

Port #1 - Outlet
Port #2 - Plugged
Port #3 - Plugged
Port #4 - Inlet

Inlet

Drain (Plugged)

Outlet

Plugged

Counter

Clockwise

Rotation

Decommissioning the Equipment

1. Ensure that the equipment is electrically isolated.

If the equipment has been used on toxic or

2. Ensure that the equipment is isolated by the appropriate valves.

hazardous fluids, ensure that the equipment is

!

correctly decontaminated and made safe prior to
commencing work. Remember fluid is often trapped
during draining and may exist outside the seal. The
equipment instruction manual should be consulted to
check for any special precautions.

Check that the fluid is drained and pressure is fully released.

Maintenance

No maintenance of a seal is possible while installed. Therefore, it is
recommended that a spare seal unit be held in stock to allow immediate
replacement of a removed seal.

It is recommended that used seals are returned to a John Crane Seal
Rebuilding Center, as rebuilding to as-new specifications must be carried
out by qualified personnel.

It is the responsibility of the equipment user to ensure that any
parts being sent to a third party have appropriate safe

!

handling instructions externally attached to the package.

Quality Assurance

This seal has been assembled in accordance with John Crane Quality
Assurance Standards and with proper maintenance and use will give safe
and reliable operation to the maximum recommended performance as
shown in any relevant approved John Crane publication.

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Installation, Operation & Maintenance Instructions

PAGE

6

Ordering Information

1. Cartridge seal size = solid shaft or sleeve outside diameter (OD).

2. Select dual (5625) or dual with pumping ring (5625P) arrangement.

3. Determine whether standard or enlarged seal chamber configuration
is required.

4. Choose seal drawing number from chart below.

5. For other material combinations or size considerations, consult
the local John Crane representative.

Type 5625/5625P Cartridge Drawing Numbers
Standard Bore Layouts

Seal Size 5625 5625P

1.000 H-SP-39549 H-SP-39550

1.125 H-SP-37369 H-SP-37377

1.250 H-SP-39560 H-SP-39561

1.375 H-SP-37370 H-SP-37378

1.500 H-SP-39570 H-SP-39571

1.625 H-SP-39580 H-SP-39581

1.750 H-SP-37371 H-SP-37379

2.000 H-SP-37372 H-SP-39591

2.125 H-SP-37373 H-SP-37381

2.250 H-SP-39600 H-SP-39601

2.375 H-SP-39610 H-SP-39611

2.500 H-SP-37374 H-SP-37382

2.625 H-SP-37375 H-SP-37383

2.750 H-SP-37376 H-SP-37384

aterials of Construction - Standard

M

Primary Ring Carbon Graphite

Silicon Carbide (optional)
Nickel Binder Tungsten Carbide (optional)

Mating Ring Silicon Carbide

Nickel Binder Tungsten Carbide (optional)
Cartridge Hardware 316 Stainless Steel
Secondary Seal Fluoroelastomer

Operating Limits

Pressure: Operating: Up to 300 psig / 21 barg

Static: Up to 450 psig / 31 barg

Inboard seal ID/Reverse: Up to 150 psig / 10 barg

Temperature: -20˚F to 400˚F / -29˚C to 204˚C

Speed: Up to 5000 fpm / 25 mps

2.875 H-SP-39620 H-SP-39621

3.000 H-SP-39630 H-SP-39631

Type 5625/5625P Cartridge Drawing Numbers

Oversize Bore Layouts

Seal Size 5625 5625P

1.375 H-SP-38065 H-SP-38066

1.750 H-SP-38075 H-SP-38076

1.875 H-SP-38085 H-SP-38086

2.125 H-SP-39042 H-SP-39043

2.500 H-SP-39015 H-SP-39016

2.625 H-SP-38095 H-SP-38096

2.750 H-SP-39025 H-SP-39026

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Installation, Operation & Maintenance Instructions

PAGE

7

TYPE 5625/5625P

DUAL METAL BELLOWS CARTRIDGE SEAL

Installation, Operation & Maintenance Instructions

PAGE

8

North America

United States of America
Tel: [phone]

Fax: [phone]

If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to
their selection and use. In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without
prior notice. It is dangerous to smoke while handling products made from PTFE. Old and new PTFE products must not be incinerated. ISO 9001 and
ISO14001 Certified, details available on request.

©2015 John Crane

Europe

United Kingdom
Tel: [phone]

Fax: [phone]

Revised 10/15 www.johncrane.com IOM-5625/5625P

Latin America

Brazil
Tel: [phone]

Fax: [phone]

Middle East & Africa

United Arab Emirates
Tel: [phone]

Fax: [phone]

Asia Pacific

Singapore
Tel: [phone]

Fax: [phone]