Flowserve MARK 3 GROUP 4 User Manual

Page 27

MARK 3 GROUP 4 USER INSTRUCTIONS ENGLISH 71569286 08-12

Page 27 of

flowserve.com

COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN

These operations must be carried

out by fully qualified personnel.

5.1 Pre-commissioning procedure

5.1.1

Lubrication Methods

Determine the mode of lubrication of the pump set,

eg grease, oil, product lubrication etc.

For oil lubricated pumps, fill the

bearing housing with correct grade of oil to the

correct level, ie sight glass or constant level oiler

bottle.

Other drivers and gearboxes, if appropriate, should

be lubricated in accordance with their manuals.

In the case of product lubricated

bearings the source of product supply should be

checked against the order. There may be

requirements for an external clean supply, particular

supply pressure or the commencement of lubrication

supply before pump start-up.

5.1.2

Oil Bath Lubrication

When fitted with a constant level oiler, the bearing

housing should be filled by unscrewing or hinging

back the transparent bottle and filling the bottle with

oil. Where an adjustable body Trico oiler is fitted this

should be set to the proper height.

The oil filled bottle should then be refitted so as to

return it to the upright position. Filling should be

repeated until oil remains visible within the bottle.

Approximate oil volumes are shown in section 5.2.3,

Pump and impeller data

5.1.3

Grease Lubrication

Grease lubricated pumps and electric motors are

supplied pre-greased.

5.1.4

Oil Mist Lubrication

Mk3 Group 4 pumps may be lubricated by pure or

purge oil mist. See comments below.
5.1.4.1 Purge Mist

In the case of purge mist an oil level is maintained in

the bearing frame. No changes are required to be

made to the pump, however, the oil level must be

maintained at site glass center. Excess oil must be

removed. Oil is injected outboard of each bearing.

5.1.4.2 Pure Oil Mist

In this method all oil is drained from the oil sump, this

is sometimes referred to as a dry sump. Oil is

injected outboard at each bearing. To use this

method some modifications must be made to the

pump. If pumps are shipped for standard oil or

grease lubrication the pumps must be dismantled

and reworked. All oil return grooves that permit

movement of oil from outboard of each bearing back

to the sump shall be blocked. These passages may

be blocked using epoxy filler or other compounds

compatible with the mist oil. Pressure inside the

center of the bearing frame must be controlled,

recommended pressure to be 25mm - 50mm (1”-2”)

O. Excessive will cause fogging and venting of oil

through the bearing seals. High inboard pressures

could result in poor mist distribution and could result

in bearing failure as mist is not forced through the

bearing. It is recommended that mist system operate

for 24 hrs before starting of the pump to ensure

bearing surfaces have been properly misted. Testing

completed has used an oil viscosity of 100 cSt. For

additional information refer to TR-3326, Pure Oil Mist

lubrication of FRBH and R/M Slurry Pumps. Contact

Flowserve engineering for copy or additional

information such as reclassifier sizing.