For subsequent insulation of pre-insulated
district heating pipes
COVALENCE®
Heat shrink products for district heating
Type selection
Covalence® TPSM-PE
Fields of application
For sealing of pipe joints in pre-insulated pipe systems in the ground, in the area of new installation
Material
HDPE backing; high strength, visco-elastic sealant
Properties
Low preheating temperature; dimpled structure in the backing material as an installation aid; continuous operating temperature up to 50 °C
Sizes
Heat-shrinkable sleeves for pipe diameters 90 to 560 mm
Covalence® RJS-E
Fields of application
For sealing of all-kind joint casings of pre-insulated pipe systems in the ground, in the area of new installation and for already installed pipe systems
Material
HDPE backing; thermoplastic copolymer adhesive; visco-elastic sealant
Properties
Shrink rate approx. 25%; visco-elastic sealant of perfect long-term stability; separate sealing tape; dimpled structure in the backing material as an installation aid; also available as roll material
Sizes
Prefabricated shrink sleeve for pipe OD 90 - 560 mm;
roll material for customized cut for pipe OD >560 mm
Covalence® DHEC
Fields of application
For sealing the pipe ends of pre-insulated pipes or fittings
Material
Two-layer molded part made of PE-HD backing material and high viscosity sealant strips
Properties
Several pipe sizes can be sealed per molded part; high tightness against water ingress; continuous operating temperature up to max. 120 °C (short term up to max. 140 °C)
Sizes
Tubular mold system; diameter of carrier pipe from 14 to 160 mm;
diameter of casing pipe from 63 to 250 mm
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Product Information
Features
- High strength hot melt adhesive
- Visco-elastic sealant
- Fixing zone as installation aid
- Highest abrasion resistance
Fields of application
For sealing of
- District heating pipelines
- Socket joints
- Pipe ends
- Wall penetrations
- Pre-insulated pipe systems
- Pre-formed pipe covering
- Pre-foamed pipe connections
Description
Covalence® is one of the leading manufacturers of crosslinked, heat-shrink products, which have been used successfully for several decades in the sealing or corrosion protection of pipe joints, pipe parts and fittings. All Covalence® products represent high quality materials and are manufactured as per the highest quality standards. Therefore they support effectively the application and processing by our customers.
Many Covalence® shrink products for corrosion protection and district heating have a dimpled structure in the backing material. This disappears permanently when sufficient heat energy is applied. This means that the processing quality can still be checked years after installation.
Audited services
All Covalence® products for district heating socketsealing have passed tests at independent district heating institutes in accordance with EN 489 and are registered accordingly. The performance data determined in these tests exceed the requirements and specifications of this standard.
Notes
- As with all closed solutions, it should be noted that retrofitting is not possible.
Technical Information
Product description
Suitable Accessories
Certificates
To offer our customers the best possible quality and service, we are organized according to DIN EN ISO 9001:2015 and have this continuously checked and certified.
CERTIFICATE ISO 9001:2015
This certification documents our conformity of the quality management system
AEO CERTIFICATE
Authorized Economic Operator "AEOC (customs simplification)"
District heating
FFI TEST REPORT EN 489
• Covalence®: RJS-E; FOPS
VEOLIA TEST REPORT EN 489
• Covalence®: RJS-E; TPSM-PE