Flowserve MARK 3 GROUP 4 User Manual

Page 12

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MARK 3 GROUP 4 USER INSTRUCTIONS ENGLISH 71569286 08-12

Page 12 of

48

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2.4 Storage

2.4.1

Short-Term Storage

When it is necessary to store a pump for a short time

before it can be installed, place it in a dry, cool

location. Protect it thoroughly from moisture and

condensation. Protective flange covers should not be

removed until the pump is being installed.

Wrap the exposed portions of the shaft and coupling

to protect against sand, grit or other foreign matter.

Oil lubricated units should be lubricated (refer to

Section III) to protect the bearings. Grease

lubricated units are lubricated at the factory during

assembly. Turn the rotor over by hand at least once

a week to maintain a protective film on the bearing

components.

2.4.2

LONG-TERM STORAGE

More than precautions are required if long-term

storage in excess of 90 days from factory shipment is

unavoidable.

The internal surfaces of the pump should be sprayed

with a rust preventative such as a water soluble oil or

other suitable alternative. Particular attention should

be given to the impeller, wear plate and stuffing box.

An optional method of protection is to suspend bags

of desiccant material inside casing and completely

seal all openings from the surrounding atmosphere.

The stuffing box should be packed with clean, dry

rags. Use of this method requires that the casing be

initially free of liquid. The desiccant material should

be checked at regular intervals to ensure that it has

not absorbed excessive water vapour. A warning

instruction, advising that the desiccant must be

removed prior to installation should be wired to the

pump.

A rust inhibitor should be added to the lubricating oil

of oil lubricated units to give additional protection

without destroying the lubricating properties of the oil.

For specific recommendations, consult your

lubrication dealer. Grease lubricated units, which

can be identified by the grease fitting at each bearing

location, should be well lubricated prior to placing in

storage. Small amounts of additional grease should

be added at regular intervals during storage. Refer

to Section III for additional information related to

grease lubrication.

Storage of pumps in areas of high ambient vibration

should be avoided to prevent bearing damage due to

brinelling. The risk of such damage can be reduced

by frequent rotation of the shaft.

The pump half coupling and key should be removed

from the shaft, coated with rust preventative and

wrapped to prevent metal-to-metal contact. Exposed

surfaces of the pump shaft should be protected with

a rust preventative. All dismantled parts should be

wrapped and tagged according to pump serial

number and a record kept of their location.

Pumps covered with plastic

should not be stored in a cool environment
because resulting condensation can cause
rusting

.

2.5 Recycling and end of product life

At the end of the service life of the product or its

parts, the relevant materials and parts should be

recycled or disposed of using an environmentally

acceptable method and in accordance with local

regulations. If the product contains substances that

are harmful to the environment, these should be

removed and disposed of in accordance with current

local regulations. This also includes the liquids

and/or gases that may be used in the "seal system"

or other utilities.

Make sure that hazardous substances are

disposed of safely and that the correct personal

protective equipment is used. The safety

specifications must be in accordance with the current

local regulations at all times.

3

PUMP DESCRIPTION

3.1 Configurations

Flowserve "MARK 3" pumps are single stage, end

suction centrifugal pumps specifically designed for

the chemical process industry and consequently are

ideally suited to many process fluids. A volute type

casing with integrally cast feet and top centerline

discharge nozzle is standard. The semi-open

impeller with rear pump-out vanes is designed for

high efficiency and prevents clogging. Sealing is

provided at the impeller to shaft fit to prevent

corrosion and thereby facilitate impeller removal.

The thrust bearing housing uses a threaded

adjustment that will permits precision bearing

alignment and impeller setting. The back pull-out

feature, typical of all MARK 3 pumps, permits quick

removal of the entire rotor/frame assembly without

disturbing the casing or driver.

The pump is sealed using non-asbestos packing in

the stuffing box, various mechanical seal designs as

specified by the customer may be installed at the

factory or retrofitted in the field.

All pumps are carefully inspected and prepared for

shipment. All exterior machined surfaces are coated

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