Standard Practice for
Design of Gas Turbine Generator Lubricating Oil Systems1
This standard is issued under the fixed designation D 4241; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1.1 This practice covers the design of lubricating oil systems for gas turbine-driven generator units 1000 kW and larger.
1.1.1 The lubricating oil system is defined as an assembly
which utilizes and circulates the turbine generator lubricating
oil and furnishes pressurized oil for control and seal functions.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ISO Standard:
ISO 4572 Hydraulic fluid power-fillers-multi-pass method
for evaluating filtration performance2
3. Significance and Use
3.1 This practice establishes minimum recommended design practices for gas turbine generator lubricating oil systems
to ensure that:
3.1.1 Lubrication, control, and seal functions will be performed satisfactorily by the oil mutually acceptable to the
3.1.2 Installation, cleaning, and flushing will be facilitated
Click below to download Astm D 4241 – 98 (Reapproved 2003) pdf free
Click here to download Astm D 4239 – 04 Pdf Free Download