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 (by-
pass 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.
Decommissioning the Equipment
1.
Ensure that the equipment is electrically isolated.
If the equipment has been used on toxic or
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.
2.
Ensure that the equipment is isolated by the appropriate valves.
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.
!
!
Clockwise
Rotation
Outlet
Port #1 - Outlet
Port #2 - Plugged
Port #3 - Plugged
Port #4 - Inlet
Inlet “I”
Clockwise
Rotation
Drain (Plugged)
Port #1 - Outlet/Vent
Port #2 - Inlet
Port #3 - Plugged
Port #4 - Plugged
Inlet “I”
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 (by-
pass 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
Plugged
Outlet “O”
Direction of view is from
the driver end of pump.
Port #1 - Vent
Port #2 - Inlet
Port #3 - Plugged
Port #4 - Outlet
Option #1
Outlet “O”
Vent (Plugged)
Option #1 requires
manual venting of
entrapped air through
port #1 prior to start-up.
Drain (Plugged)
Inlet
Counter
Clockwise
Rotation
Plugged
Installing the Seal
(cont.)
TYPE 5625/5625P
DUAL METAL BELLOWS CARTRIDGE SEAL
Installation, Operation & Maintenance Instructions
PAGE
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