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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.

high temperature jackets

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

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