EDF Turbine Fleet Insulation Jackets
ContraFlex® high temperature insulation jackets deliver ease of maintenance for critical equipment more efficiently than conventional methods.
Turbines use “superheated steam” (steam that’s hotter than its vaporisation or boiling point at the absolute pressure where temperature is measured) which may cause health and safety risks if not insulated.
We design, manufacture and install ContraFlex® high temperature insulation jackets which operate up to 1,100°C through the use of specially selected infill materials and fabrics. Joints are staggered between the layers of insulation to provide minimal heat loss and maximum efficiency.
Typical applications include insulating intermediate pressure (IP) and high pressure (HP) turbine half joints, main boiler feed pumps (MBFP) in addition to ancillary equipment such as; stops, governors, valves and strainers including; emergency shutdown valves (ESV), vacuum tubes (VT) and idle control valves (ICV).
Our track record
The table below illustrates our work with power plants across the UK.
| Hartlepool | July 2016 |
Various jackets around the reactor, and maintenance on centre line jacket |
| Heysham 2 | October 2016 |
Maintenance on centre line jackets |
| Heysham 1 | February 2017 |
HP and IP Stop and Gov valves |
| Dungeness B | July 2017 |
Maintenance on centre line jackets |
| West Burton CCGT | July 2017 |
Maintenance on centre line jackets |
| Hartlepool | January 2018 |
MBFP live steam valve and suc tion stage, plus various jackets around reactor |
| Heysham 2 | May 2018 |
Maintenance on centre line jackets |
| Dungeness B | September 2018 |
Maintenance on centre line jackets |
| Torness | September 2018 |
Replace IP top and ½ joints |
| Hinkley Point B | March 2019 |
Replace IP top |
| Torness | June 2019 |
Supply spare set of HP jacket for site |
| Hartlepool | March 2020 |
Duplicate jackets on GT and ST (copy original OEM jackets) |
| Heysham 2 | March 2020 |
Maintenance on centre line jackets |
Benefits of using ContraFlex®
• Safely removable for inspection and maintenance – up to three times quicker than traditional methods
• Design ensures no hot spots, gaps or heat leakage
• Personnel protection and bespoke designs to fit your turbines
• Reduces noise and vibration
• Easy to repair or refit
• Jacket construction eliminates airborne fibres.
Cost savings
By reducing the removal, maintenance and reinstatement schedule from seven days using traditional insulation to three days with ContraFlex® jackets; reducing the outage time – for Hartlepool and Heysham 1, the system has provided over £5 million in cost savings.
“An all-round world class product and service, for over four years at EDF Hartlepool.” – Jason Young, Senior Project
To find out if ContraFlex® is the right solution for your installation talk to us…
T: +44 (0)1452 880 880
E: info@advancedinsulation.com