Frame 7FA.03 1st, 2nd, 3rd Stage Buckets0 pages

In Excess of 2 Million Hours
of Successful Operational
Runtime Experience on
“F” Class Hardware.

Frame 7FA.03 1st, 2nd, 3rd Stage Buckets
Improved Design – Extending the Service Life of Your Parts

PW Power Systems (PWPS) designs the rotating components
for the hot gas path of the Frame 7FA.03 gas turbine. The
designs incorporate extensive high-temperature experience
to provide improved total life-cycle costs.

PWPS improves upon the OEM offering by leveraging
Pratt & Whitney® designed parts to minimize oxidation,
creep and metal temperature, ultimately extending part life
and reducing operating costs.
PW Power Systems Frame 7FA.03 1st Stage Bucket
Design Advantages Include:
• Directionally solidified proprietary alloy and proprietary
UDC Thermal Barrier Coating (TBC) system provide
improved creep resistance and oxidation life
™

• Improved cooling distribution reduces peak metal
temperature

• T
railing edge undercut to alleviate trailing-edge
cooling-hole cracking

• Cooled platform to resolve cracking for high-hour and
starts (corner box operationing users)

PW Power Systems Frame 7FA.03 2nd Stage Bucket
Design Advantages Include:
• Proprietary equiaxed alloy and proprietary TBC system
provide improved creep resistance and oxidation life
™

• Tip shroud 3D contouring with cutter tooth removed and
abradable coating added on shroud rail to further improve
shroud life to meet 72,000-hour cumulative life

• Improved cooling distribution and peak temperature
reduction through additional trailing-edge cooling holes
reducing trailing-edge creep while not changing total
internal cooling flow
PW Power Systems Frame 7FA.03 3rd Stage Bucket
Design Advantages Include:
• Proprietary equiaxed alloy and chromide coating system
provide improved creep resistance and corrosion life
™

• Tip shroud 3D contouring with cutter tooth removed and
abradable coating added on shroud rail to further improve
shroud life to meet 72,000-hour cumulative life