37 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
37 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
37 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
Vertical Turbine Pumps
Commissioning and Operation
Document Name: 2001299-VTP-IOM-EN Page 37 of 67
Revision 3 Copyright © 2014, Weir Floway, Inc. All Rights Reserved. Issue Date: December 12, 2014
6.4 Lineshaft Lubrication
1. Open Lineshaft Bearings: are lubricated by the pumped fluid. Close coupled units (less than 40 feet
long) usually do not require pre or post lubrication.
2. Enclosed Lineshaft Bearings: are lubricated by external liquid (usually oil or clean water) which is fed to
the tension nut by either a gravity flow or pressure injection system. The gravity flow system which
utilizes oil is the most common arrangement. The oil reservoir must be kept filled with good quality light
turbine oil (about 150 S.S.U. at operating temperature) and adjusted to feed 5 to 8 drops per minute.
Injection lubrication systems are designed for each installation. The injection pressure and quantity of
lubricating liquid varies. Refer to Figure 12-8 on page 65 for injection lubrication arrangement.
Refer to Table 6-1 for turbine oils, that are recommended for enclosed lineshaft bearing lubrication under
normal operating conditions.
Refer to Table 6-2 for turbine oil that is suitable for use where FDA approved lubricating oil is required for
USDA-Classification H1.
If none of the above oils are available, procure the oil with following specifications:
• Turbine type oil with rust and oxidation inhibitors added.
• Viscosity 145-175 S.S.U. at 100°F with 90 minimum viscosity index. ISO grade 32.
• Do not use detergent type oils.
Refer to the certified outline drawing for requirements when the unit is designed for
injection lubrication.
Manufacturer Trade Name of Oil
Amoco American Industrial 32
Exxon Teresstic 32
Mobil Oil Company DTE Light
Conoco Conoco 32
Shell Oil Company Tellus 32
Chevron Chevron GST68
Texaco Texaco Regal R&O 32
Phillips 66 Magnus 32
Unocal Unocal Turbine Oil 32
Table 6-1: Recommended Lineshaft Oil
Manufacturer Trade Name of Oil
Chevron Chevron FM Lubricating Oil 32
Lyondell Petrochemical ARCO White Oil 32
Table 6-2: Recommended Lineshaft Oil
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