2 pump lubricants, Bearing sizes and capacities (5.2.2), Recommended fill quantities (see 5.2.2) – Flowserve CPX IDP User Manual
Page 19: Recommended oil lubricants (5.2.1)

CPX, CPXR, CPXN and CPXP USER INSTRUCTIONS ENGLISH 71569117 09-11
Page 19 of 44
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For oil lubricated pumps, fill the
bearing housing with correct grade of oil to the
correct level, ie sight glass [3856] or
constant level
oiler bottle [3855].
When fitted with a constant level oiler [3855], the
bearing housing [3200] should be filled by unscrewing
or hinging back the transparent bottle and filling it with
oil. Watchdog oilers are self-setting and internally vent
balanced. Where an adjustable body Denco oiler is
fitted this should be set to the height shown in the
following diagram:
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 5.2.2,
Bearing sizes and capacities.
Grease lubricated pumps and electric motors are
supplied pre-greased.
Where the ambient temperature is very low special
lubricants are required. Where oil lubrication is
utilized and the ambient is less than -5 °C (23 °F)
ensure the oil
’s pour point is at least 15 °C (27 °F)
below the ambient temperature or use oil class SAE
5W-50 or API-SJ and ensure the upper operating
range of the oil is then not exceeded. . IS0 VG 46 oil
is generally selected for an initial lubrication
schedule.
Other drivers and gearboxes, if appropriate, should
be lubricated in accordance with their manuals.
5.2 Pump lubricants
5.2.1 Recommended oil lubricants
C
e
nt
ri
fugal
pu
m
p
lubr
ic
a
ti
on
Oil
Splash / force feed / purge oil mist/ pure oil mist lubrication
Viscosity cSt
@ 40 ºC
32
46
68
Oil temperature range *
-5 to 65 ºC
(23 to 149 ºF)
-5 to 78 ºC
(23 to 172 ºF)
-5 to 80 ºC
(23 to 176 ºF)
Designation to ISO 3448
and DIN51524 part 2
ISO VG 32
32 HLP
ISO VG 46
46 HLP
ISO VG 68
68 HLP
Oi
l
c
om
pani
e
s
a
nd
lubr
ic
a
nt
s
BP Castrol
†
Energol HLP-HM 32
Energol HLP-HM 46
Energol HLP-HM 68
ESSO
†
NUTO HP 32
NUTO HP 46
NUTO HP 68
ELF/Total
†
ELFOLNA DS 32
Azolla ZS 32
ELFOLNA DS 46
Azolla ZS 46
ELFOLNA DS 68
Azolla ZS 68
LSC (for oil mist)**
LSO 32 (Synthetic oil)
LSO 46 (Synthetic oil)
LSO 68 (Synthetic oil)
ExxonMobil
†
Mobil DTE 24
Mobil DTE 25
Mobil DTE 26
Q8
†
Q8 Haydn 32
Q8 Haydn 46
Q8 Haydn 68
Shell
†
Shell Tellus 32
Shell Tellus 46
Shell Tellus 68
Chevron Texaco
†
Rando HD 32
Rando HD 46
Rando HD 68
Wintershall (BASF Group)
†
Wiolan HS32
Wiolan HS46
Wiolan HS68
Fuchs
†
Renolin CL 32
Renolin CL 46
Renolin CL 68
* Note that it normally takes 2 hours for bearing temperature to stabilize and the final temperature will depend on the ambient, r/min, pumpage
temperature and pump size. Also 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).
†
Use LSC for oil mist. Oil parameters provide flash point >166 ºC (331 ºF), density >0.87 @ 15 ºC (59 ºF), pour point of -10 ºC (14 ºF) or lower.
Normal compounded oils CANNOT be used with oil mist as anti-foam additives need to be avoided. Most oils recommended for wet splash
lubrication contain foam inhibitors as well as antioxidants and anticorrosion additives, so they are unsuitable for oil mist. Some synthetic
lubricants may attack the Nitrile seals used in a regular bearing housing. The LSC LSO oils are recommended for oil mist applications.