The FlexiGas 32mm Double Sleeved Flexible Gas Pipe (DS-32) – 100m Spool is a pre-sleeved, twin-layer CSST gas pipe designed to provide a fast, flexible and versatile solution for professional gas installations. Featuring a pipe-in-pipe construction, it can be installed directly from the spool across a wide range of installation scenarios, including solid walls, solid floors, screed, soil and unventilated voids, without requiring additional on-site sleeving. Certified under the BSI Kitemark scheme (KM 598726) and manufactured to BS/EN 15266, the system combines ease of installation with robust mechanical and fire performance.
FlexiGas DS-32 32mm CSST Double Sleeved 100m Spool BSI Kitemark Certified
0.5 bar
Maximum operating pressure
Applications & suitability
Solid walls & floors
Designed for installation through solid walls, solid floors and structural elements without requiring additional sleeving on site.
Screed & soil installations
The integrated sleeve is designed to allow the pipe system to be used through screed, earth and soil in suitable installation applications.
Unventilated voids
Suitable for specified unventilated void and riser applications, with the small annulus allowing direct clipping where appropriate.
Commercial installations
The 100m spool format is particularly suited to commercial installers and developers undertaking larger-volume 32mm gas pipework installations.
Key specifications
| Product details |
| Manufacturer |
FlexiGas |
| MPN |
DS-32-100 |
| Product |
Double Sleeved Flexible Gas Pipe |
| Size |
DN32 / 32mm |
| Length |
100 metres – spool |
| CSST outer diameter |
38mm |
| CSST internal diameter |
33mm |
| Maximum diameter including sleeve |
51mm |
| Maximum operating pressure |
0.5 bar |
| Tubing material |
1.4404 / 1.4541 stainless steel |
| Manufacturing standard |
BS/EN 15266 |
| Fire performance |
EN 1775 Annex A & B passed |
| Jacket rating |
B-s1 d0, UV resistant |
| Certification |
BSI Kitemark KM 598726 / EN 15266 |
| Colour |
Yellow |
| Warranty |
1 year, subject to manufacturer's terms and conditions |
Installation & compatibility
The FlexiGas DS-32 features a patent-pending pipe-in-pipe construction consisting of an inner corrugated stainless steel gas pipe with a yellow PE cover positioned inside a V0 fire-rated corrugated sleeve. The slidable configuration allows the CSST to be inserted and withdrawn while providing an integrated sleeve suitable for a range of installation environments. The system is compatible with the FlexiGas FGLink™ range of 130+ dezincification-resistant brass fittings. Installation must be carried out in accordance with applicable gas installation regulations and manufacturer requirements.
Design & performance benefits
Pipe-in-pipe design
The twin-layer construction combines corrugated stainless steel gas tubing with an integrated V0 fire-rated corrugated sleeve for versatile installation.
Fast, flexible installation
The flexible CSST bends by hand, allowing long continuous runs with fewer joints and reducing the need for soldering, sealants or specialist tools.
Wide installation coverage
The integrated sleeve is designed for a broad range of installation scenarios, including solid walls, solid floors, screed, soil and unventilated voids.
Professional-grade compatibility
Designed for use with the FlexiGas FGLink™ fitting range, providing a secure metal-to-metal connection solution for compatible installations.
Additional installation features
FG Bond™ ready
Can be paired with the integrated earthing terminal, certified to BS 951:2009, for convenient electrical bonding where required.
Easy identification
The high-visibility yellow jacket and metre-marked tubing help installers measure, identify and cut the required lengths efficiently on site.
Silicone tape included
Each 100m spool includes one free roll of silicone tape, providing an additional practical accessory for installation work.
Ideal for
The FlexiGas 32mm Double Sleeved Flexible Gas Pipe DS-32 100m Spool is ideal for commercial installers, developers and professional heating engineers carrying out larger-volume 32mm gas pipework installations. The generous 100m spool provides long continuous runs, precise cutting and reduced material wastage, while the integrated double-sleeve construction eliminates the need for additional sleeving across many common installation scenarios. The system is designed to work with compatible FlexiGas FGLink™ fittings and can be used across a broad range of suitable above-ground, structural and concealed gas pipework applications.
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For orders that do not qualify for free delivery, standard
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Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge. For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.
