Flowserve Mark 3 Sealed Metallic Durco User Manual

Page 44

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MARK 3 USER INSTRUCTIONS ENGLISH 71569102 01-13

Page 44 of 72

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other parts of the pump. For example, dirt in the
impeller threads could cause the impeller to not be
seated properly against the shaft. This, in turn, could
cause a series of other problems. For these reasons,
it is very important that proper cleanliness be
maintained. Some guidelines are listed below.

After draining the oil from the bearing housing,
periodically send it out for analysis. If it is
contaminated, determine the cause and correct.

The work area should be clean and free from
dust, dirt, oil, grease etc.

Hands and gloves should be clean.

Only clean towels, rags and tools should be
used.

6.2 Spare parts

The decision on what spare parts to stock varies greatly
depending on many factors such as the criticality of the
application, the time required to buy and receive new
spares, the erosive/corrosive nature of the application,
and the cost of the spare part. Section 8 identifies all of
the components that make up each pump addressed in
this manual. Please refer to the Flowserve Mark 3
Pump Parts Catalog
for more information. A copy of
this book can be obtained from your local Flowserve
sales engineer or distributor/representative.

Prior to resizing impellers in high

chrome iron and nickel, please consult your local
Flowserve sales representative.

6.2.1

Ordering of spare parts

Flowserve keeps records of all pumps that have been
supplied. Spare parts can be ordered from your local
Flowserve sales engineer or from a Flowserve
distributor or representative. When ordering spare
parts the following information should be supplied:

1)

Pump serial number

2)

Pump size and type

3)

Part name – see section 8

4)

Part item number – see section 8

5)

Material of construction (alloy)

6)

Number of parts required

The pump size and serial number can be found on
the nameplate located on the bearing housing. See
figure 3-1.

6.3 Recommended spares and

consumable items

Mechanical process fluid seals, bearing housing lip
seals, bearings, shafting, impeller, and gaskets.

6.4 Tools required

A typical range of tools that will be required to
maintain these pumps is listed below.
Standard hand tools SAE

Hand wrenches

Socket wrenches

Allen wrenches

Soft mallet

Screwdrivers


Specialized equipment

Bearing pullers

Bearing induction heaters

Dial indicators

Spanner wrench

Flowserve Mark 3 tool kit (see below)


To simplify maintenance, it is recommended that the
Flowserve Mark 3 tool kit (shown in figure 6-1) is
used. This tool kit includes a handy impeller wrench,
which simplifies installation and removal of the
impeller. It also contains “nose cones” which protect
shaft threads and O-rings during maintenance. This
tool kit can be ordered from your local Flowserve
sales engineer or from a Flowserve distributor or
representative.

Figure 6.1

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