Smiths John Crane 8628VL Installation, Operation & Maintenance Instructions

Foreword Foreword
This instruction manual is provided to familiarize the user with the seal
This instruction manual is provided to familiarize the user with the
and its designated use. The instructions must be read and applied
seal and its designated use. The instructions must be read and applied
whenever work is done on the seal, and must be kept available
whenever work is done on the seal, and must be kept available for future
for future reference.
reference.
ATTENTION These instructions are for the installation and operation
ATTENTION
These instructions are for the installation and operation
of a seal as used in rotating equipment. The instructions
of a seal as used in rotating equipment. The instructions
will help to avoid danger and increase reliability. The
will help to avoid danger and increase reliability. The
information required may change with other types of
information required may change with other types of
equipment or installation arrangements. This manual
equipment or installation arrangements. This manual
must be read in conjunction with the instruction manuals
must be read in conjunction with the instruction manuals
for both the pump and any ancillary equipment.
for both the pump and any ancillary equipment.
If the seal is to be used for an application other than that originally
intended or outside the recommended performance limits, John Crane
If the seal is to be used for an application other than that originally
must be contacted before its installation and use.
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
Any warranty may be affected by improper handling, installation or use
warranty and limitations of liability.
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.
If questions or problems arise, contact your local John Crane
representative or the original equipment manufacturer, as appropriate.
ATTENTION John Crane mechanical seals are precision products and
must be handled appropriately. Take particular care to
ATTENTION John Crane mechanical seals are precision products and
avoid damage to lapped sealing faces and to flexible
must be handled appropriately. Take particular care to
sealing rings. Do not excessively compress the seal
avoid damage to lapped sealing faces and to flexible
before or during installation.
sealing rings. Do not excessively compress the seal
before or during installation.
Safety Instructions
Safety Instructions
1. The following designations are used in the installation instructions to
highlight instructions of particular importance.
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 operate
the seal most efficiently.
NOTE refers to special information on how to install or operate
the seal most efficiently.
ATTENTION refers to special information or instructions
directed toward the prevention of damage to
the seal or its surroundings.
TYPE 8628VL SEAL
TYPE 8628VL SEAL
Installation, Operation & Maintenance Instructions
Installation, Operation & Maintenance Instructions
ATTENTION refers to special information or instructions directed
Refers to mandatory instructions designed to
toward the prevention of damage to the seal or its
prevent personal injury or extensive damage to
surroundings.
the seal or its surroundings.
2. Installation, removal and maintenance of the seal must be carried
Refers to mandatory instructions designed to prevent
out only by qualified personnel who have read and understood these
personal injury or extensive damage to the seal or its
installation instructions.
surroundings.
3. The seal is designed exclusively for sealing rotating shafts. The
2. Installation, removal and maintenance of the seal must be carried
manufacturer cannot be held liable for use of the seal for purposes
out only by qualified personnel who have read and understood these
other than this.
installation instructions.
4. The seal must only be used in technically perfect condition and must
3. The seal is designed exclusively for sealing rotating shafts. The
be operated within the recommended performance limits in
manufacturer cannot be held liable for use of the seal for purposes
accordance with its designated use and the instructions set out in
other than this.
these instructions.
4. The seal must only be used in technically perfect condition and
5. If the pumped fluid is hazardous or toxic, appropriate precautions must
must be operated within the recommended performance limits in
be taken to ensure that any seal leakage is adequately contained.
accordance with its designated use and the instructions set out in Further information on sealing hazardous or toxic fluids should be
obtained from John Crane prior to seal installation.
these instructions.
6. Fluorocarbon components should never be burned or incinerated as the
5. If the pumped fluid is hazardous or toxic, appropriate precautions
fumes and residues are highly toxic. If fluorocarbons are accidentally
must be taken to ensure that any seal leakage is adequately
heated above 400°C/750°F, they can decompose. Protective gloves
contained. Further information on sealing hazardous or toxic fluids
should be worn as hydrofluoric acid may be present.
should be obtained from John Crane prior to seal installation.
7. PTFE components should never be burned or incinerated as the fumes
6. Fluorocarbon components should never be burned or incinerated
are highly toxic.
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.
Before Starting the Equipment
7. PTFE components should never be burned or incinerated as the fumes
1. Check the pump at the coupling for proper alignment of the
are highly toxic.
driver or motor.
2. Ensure that the gland plate nuts/bolts are securely tightened according
Before Starting the Equipment
to the pump manual instructions, and all screws are securely fastened.
1. Check the pump at the coupling for proper alignment of the driver
3. Complete the assembly of the pump and turn the shaft (by hand if
or motor. possible) to ensure free rotation.
2. Ensure that the gland plate nuts/bolts are securely tightened 4. Consult all available equipment operating instructions to check for
correctness of all piping and connections, particularly regarding seal
according to the pump manual instructions, and all screws are
recirculation/flush, heating or cooling requirements, and services
securely fastened.
external to the seal.
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