Power Generation... 

Eastman Chemical

Application

Steam valve control

Customer

Eastman manufactures chemicals, fibres and plastics materials for use in a wide range of products

The Challenge

The GE turbine, driving a 7.5 megawatt electric generator, operated on 1450 psig steam. The steam flow to the turbine was controlled by seven control valves mounted in the turbine’s steam chest and operated by individual cams mounted on a 2 inch diameter cam shaft. As the cam shaft rotated approximately 200º, the cams lift opened the 7 control valves in a sequence based on the position of each cam on the shaft.

The existing actuator on the turbine was a 10 inch diameter single acting, spring return hydraulic cylinder, operating off the 150 psig turbine lube oil system through a mechanical governor operated pilot valve.

Lacking the design data on the aging system, replacing or retrofitting the existing cylinder with similar technology would be expensive, if technically possible or feasible.

The Solution

Eastman chose a direct replacement of the existing hydraulic cylinder with a linear actuator.

Results

The customer's engineers chose a GSX60 with a 10 inch stroke. The configuration required a handwheel for manual operation, with the clevis mount rotated 90º to allow unfettered access to the handwheel.

 

Unrivalled Product

 

Unrivalled Product Range

Olsen has a unique breadth and depth of the most high performance, efficient and reliable actuators on the market. We also supply an unrivalled array of supporting equipment to complement your applications, including Servo Motors & Drives, gear boxes, cables and countless options to customise to your specifications.

View All Products

Ready for Take Off - FIA 2024

The resurgence of the aerospace industry after the COVID years appears to be...
Read Full Story

Olsen Actuators & Drives at Automate UK 2024

Last week the Olsen Actuators & Drives team attended Automate UK, 18th - 19th...
Read Full Story

2 Weeks until Automation UK 2024

The Olsen Actuators & Drives team is excited to be exhibiting at Automation UK...
Read Full Story

Celebrating 20 Years of Powering Your Machines Forward!

The Olsen Actuators & Drives team celebrated 20 years of business with a few...
Read Full Story

A Successful Space Comm Expo 2024

The Olsen Actuators & Drives team attended their second Space Comm Expo, 6th -...
Read Full Story

Olsen Actuators & Drives secures UK Space Agency funding for development of lunar rover drive system

Project will deliver Proof of Concept demonstrator for a jumping lunar rover...
Read Full Story

Olsen Actuators & Drives Joins The Airship Association

Olsen Actuators & Drives are pleased to announce they are now members of The...
Read Full Story

Olsen Actuators & Drives awarded Cyber Essentials Plus

Olsen Actuators & Drives are delighted to announce the recertification of the...
Read Full Story

Visit to the UK Space Conference 2023, Belfast!

As members of UKSpace (the official trade association of the UK space...
Read Full Story