5 commissioning, start-up, operation and shutdown, 1 pre-commissioning procedure, 2 lubricants – Flowserve Twin Screw Rotary User Manual

Page 29

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TWIN SCREW PUMPS. ORIGINAL USER INSTRUCTIONS. ENGLISH. 71569243 – 07/10

Page 26 of 53

®

5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN

These operations must be carried

out by fully qualified personnel.

5.1 Pre-commissioning procedure


5.1.1 Check-list
To avoid operational difficulties and to ensure a
trouble free initial start-up, the following additional
checks should be made.
1. Check that all piping has been properly bolted,

anchored and braced. If the system is
hydrostatically tested, ensure that the pump and
other equipment is properly vented and
adequately protected against excessive pressure.
(See Sections 4.11 Protection systems and 5.9.1
Venting the pump
).

2. Flush the piping system, particularly the suction

line, to ensure that all foreign material has been
removed.

3. Check that all valves and automatic equipment

are operating properly.

4. Ensure that drivers are provided with properly set

over-load and/or overspeed protection devices as
required.

5. Check all auxiliary piping circuits.
6. Check that the gland nuts of a packed pump are

only finger tight and that the shaft can be turned
by hand.


5.1.2 Freezing
Precautions should be taken to prevent the liquid in
the pump or associated piping from freezing.


5.1.3 Lubrication

5.1.3.1 External bearing pump
Bearing lubrication is provided by lubricating oil
contained in housings located at both ends of the
pump.

Fill the bearing housings with the

correct grade of oil to the correct level, i.e. sight glass
or

constant level oiler bottle.


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.

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.

5.1.3.2 Internal bearing pump
Bearing lubrication is provided by the liquid being
pumped.

5.2 Lubricants


5.2.1 Typical oils
Company

Column “A”

Column “B”

Column “C”

Mobil

Mobil DTE Oil BB

MOBILGEAR 626

Mobil DTE Oil HH

Shell

OMALA Oil 220

OMALA Oil 68

OMALA Oil 460

Sunoco

SUNVIS 790 (220)

SUNVIS 747 (46)

SUNVIS 7150

Amoco

RYKON Oil No. 220

AMOGEAR No. 68

American Industrial Oil No. 460

Texaco

REGAL R&O 220

MEROPA 150

REGAL R&O 460

Arco

PENNANT NL 220

PENNANT NL 68

RUBILENE 460

Chevron

AW Machine Oil 220

EP Industrial Oil 46x

NL Gear Compound 460

Exxon

TERESSTIC N220

SPARTAN EP 68

TERESSTIC 460

*Esso

TERESSO N220

SPARTAN EP 68

CYLESSO TK 460

Petro Canada

GIREX 220

GIREX 68

GIREX 320

*Imperial Oil Limited (Canada)

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