UNIREX Pump - Manual (Page 34)

MARK 3 USER INSTRUCTIONS ENGLISH 71569102 08-06
Page 34 of 68 flowserve.com
In many pumping applications lubricating oil becomes
contaminated before it loses its lubricating qualities or
breaks down. For this reason it is recommended that
the first oil change take place after approximately 160
hours of operation, at which time, the used oil should be
examined carefully for contaminants. During the initial
operating period monitor the bearing housing operating
temperature. Record the external bearing housing
temperature. See figure 5-5 for maximum acceptable
temperatures. The normal oil change interval is based
on temperature and is shown in figure 5-6.
Figure 5-2: Amount of oil required
Pump Mark 3 Mark 3A
Group 1 148 ml (5 fl. oz.) 251 ml (8.5 fl. oz.)
Group 2 560 ml (19 fl. oz.) 946 ml (32 fl. oz.)
Group 3 1419 ml (48 fl. oz.) 1419 ml (48 fl. oz.)
The maximum temperature that the
bearing can be exposed to is 105 °C (220 °F).
Figure 5-3a: Recommended oil lubricants
* Note that some oils have a greater Viscosity Index than the minimum acceptable of 95 (eg Mobil DTE13M) which may extend the
minimum temperature capability of the oil. Always check the grade capability where the ambient is less than -5 ºC (-23 ºF).
Figure 5-3b: Recommended lubricants
Mineral
oil
Quality mineral oil with rust and oxidation
inhibitors. Mobil DTE heavy/medium
(or equivalent)
Synthetic
Royal Purple or Conoco SYNCON (or equivalent).
Some synthetic lubricants require Viton O-rings.
Grease
EXXON POLYREX EM (or compatible) – horizontal
Polyurea with mineral oil
EXXON Unirex N3 (or compatible) – In-Line
Lithium Complex with mineral oil
Figure 5-4: Oil viscosity grades
Maximum oil
temperature
ISO viscosity
grade
Minimum
viscosity index
Up to 71 °C (160 °F) 46 95
71-80 °C (160-175 °F) 68 95
80-94 °C (175-200 °F) 100 95
Figure 5-5: Maximum external housing temperatures
Lubrication Temperature
Oil bath 82 °C (180 °F)
Oil mist 82 °C (180 °F)
Grease 94 °C (200 °F)
Figure 5-6: Lubrication intervals *
Lubricant
Under 71 °C
(160 °F)
71-80 °C
(160-175 °F)
80-94 °C
(175-200 °F)
Grease 6 months 3 months 1.5 months
Mineral oil 6 months 3 months 1.5 months
Synthetic oil** 18 months 18 months 18 months
* Assuming good maintenance and operation practices, and no
contamination.
** May be increased to 36 months with ANSI 3A™ power end.
*** Bearing temperatures up to 16 °C (30 °F) higher than housing.
Oil Splash / force feed / oil mist lubrication
Viscosity
cSt at 40 ºC
32 46 68
Oil temp. range * ºC
(ºF)
-5 to 65
(-23 to 149)
-5 to 78
(-23 to 172)
-5 to 80
(-23 to 176)
C
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Designation according
to DIN51502 ISO VG
HL/HLP 32 HL/HLP 46 HL/HLP 68
BP
BP Energol HL32
BP Energol HLP32
BP Energol HL46
BP Energol HLP46
BP Energol HL68
BP Energol HLP68
DEA
Anstron HL32
Anstron HLP32
Anstron HL46
Anstron HLP46
Anstron HL68
Anstron HLP68
Elf
OLNA 32
HYDRELEF 32
TURBELF 32
ELFOLNA DS32
TURBELF SA46
ELFOLNA DS46
TURBELF SA68
ELFOLNA DS68
Esso
TERESSO 32
NUTO H32
TERESSO 46
NUTO H46
TERESSO 68
NUTO H68
Mobil
Mobil DTE oil light
Mobil DTE13M
MobilDTE24
Mobil DTE oil medium
Mobil DTE15M
Mobil DTE25
Mobil DTE oil heavy medium
Mobil DTE26
Q8
Q8 Verdi 32
Q8 Haydn 32
Q8 Verdi 46
Q8 Haydn 46
Q8 Verdi 68
Q8 Haydn 68
Shell
Shell Tellus 32
Shell Tellus 37
Shell Tellus 01 C 46
Shell Tellus 01 46
Shell Tellus 01 C 68
Shell Tellus 01 68
Texaco
Rando Oil HD 32
Rando Oil HD-AZ-32
Rando Oil 46
Rando Oil HD B-46
Rando Oil 68
Rando Oil HD C-68
O
il
co
m
pa
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es
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nd
lu
br
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an
ts
Wintershall
(BASF Group)
Wiolan HN32
Wiolan HS32
Wiolan HN46
Wiolan HS46
Wiolan HN68
Wiolan HS68