Flowserve Pump Division - 24
Mounting of Wearing Rings
Clean the ring and location where the ring is to be mounted thoroughly and examine them for physical
defects, wear, corrosion, and damage. Chill the wearing ring and mount it in the casing. If the impeller
wearing ring was furnished with the original unit, heat the wearing ring prior to mounting it in the impeller.
Ensure that the wearing rings are fully seated.
MECHANICAL SEALS
Removal of Seals
To remove mechanical seals, follow the procedure below:
1. The impeller (lower seal) or snap ring (upper seal) must be removed in order to remove
the primary ring (rotating face). The shaft should be lightly lubricated so that the bellows
will slide off the shaft. It is recommended that a soft hand soap and water mixture or
glycerin be used. Light mineral oil may be used sparingly with nitrite and fluorocarbons.
CAUTION: DO NOT USE WASHING-UP LIQUID, LIQUID SOAP OR HAND CLEANING GELS. DO
NOT USE HYDROCARBON-BASED OILS OR ANY GREASE (INCLUDING SILICONE
GREASE) ON ANY BELLOWS.
2. The seat/mating ring is removed by gently prying it from the gland plate (the adapter plate
for the lower seal and the bearing housing for the upper seal).
CAUTION: IT IS RECOMMENDED THAT MECHANICAL SEALS BE REPLACED WHENEVER
THE BEARING HOUSING IS DISASSEMBLED.
Installation of Seals
1. Inspect the primary seal and mating ring and wipe them clean.
2. Install the seal/mating ring in the gland plate (the adapter plate for the lower seal and the
bearing housing for the upper seal) by gently pushing the ring and bellows into the bore.
NOTE: IN ORDER TO APPLY EVEN PRESSURE AROUND THE ENTIRE MATING
RING A SLEEVE SHOULD BE USED. Care must be taken not to damage the seal face
during installation.
3. Clean and lightly lubricate the shaft. See the note above concerning which types of
lubrication are acceptable with elastomer bellows.
4. Carefully slide the seal along the shaft far enough that the snap ring or impeller can be
installed to hold the seal in place. The seal faces must meet perfectly or the seal will not
perform properly.
REPLACING COOLING FLUID
The cooling fluid in the bearing house should be inspected at semiannual intervals or sooner depending
upon pump use. A small amount of cooling fluid should be drained from the motor and examined. If the
fluid is clean, there is no need to replace it. If the fluid is discolored or milky, it should be drained and
replaced with fresh fluid. The fluid should be checked again 2-3 weeks later. If the fluid has become
discolored or milky the seal should be replaced. Flowserve Pump Division recommends Royal Purple
Barrier Fluid GT22 as the replacement fluid. Contact an authorized service person for replacement
cooling fluid.
CAUTION: THE OPERATION OF THE COOLING SYSTEM IS DEPENDENT UPON THE USE OF
THE PROPER COOLING FLUID. THE USE OF A NON-APPROVED COOLING FLUID
WILL INCREASE THE INTERNAL TEMPERATURE OF THE MOTOR, WHICH MAY
RESULT IN PRODUCT DAMAGE AND WILL VOID THE FACTORY WARRANTY AND
EXPLOSION PROOF CERTIFICATION.
To Next Page
Loading...
