FlexiGas 28mm Double Sleeved Flexible Gas Pipe (DS-28) – 75m Spool is a pre-sleeved, double-layer corrugated stainless steel tubing (CSST) system designed for gas installations in commercial and larger domestic properties. Its flexible, hand-bendable construction supports long continuous pipe runs, helping reduce the need for multiple joints compared with conventional rigid pipework. The integrated sleeve is designed for installation through solid walls, solid floors, screed, soil and unventilated voids, subject to applicable regulations and manufacturer instructions.
Manufactured to BS/EN 15266 and certified under the BSI Kitemark scheme (KM 598726), this 28mm FlexiGas pipe features a stainless steel inner tube, a yellow polyethylene cover and a V0 fire-rated corrugated outer sleeve. It is compatible with the FlexiGas FGLink™ range of fittings and is supplied as a 75-metre spool with one free roll of silicone tape. Its stated maximum operating pressure is 0.5 bar, and the listed warranty is one year, subject to the manufacturer's terms and conditions.
28mm DN28 Pipe
75m Spool
Double-Sleeved CSST
BSI Kitemark Certified
At a Glance
Pipe Size
28mm DN28
Flexible gas pipe
Spool Length
75 metres
For extended pipe runs
Maximum Pressure
0.5 bar
As specified to BS/EN 15266
Certification
BSI Kitemark
KM 598726
About the FlexiGas 28mm Double Sleeved Flexible Gas Pipe
The FlexiGas DS-28-75 is designed to simplify gas pipework installations through its flexible stainless steel construction and integrated double-sleeved design. The corrugated inner gas tube bends by hand to accommodate installation routes, helping installers create longer continuous runs with fewer joints than many rigid pipework layouts. Its slidable outer sleeve is designed to provide protection as the pipe passes through specified building elements and installation environments.
The pipe uses 1.4404 / 1.4541 stainless steel, with a yellow polyethylene cover and a V0 fire-rated corrugated outer sleeve. It is designed for use with the FlexiGas FGLink™ range of compatible brass fittings. The product specification also identifies compatibility with the FG Bond™ earthing terminal system. Always confirm the approved components, installation method, bonding requirements and suitability for the intended gas installation before use.
Key Features
Double-Sleeved Pipe-in-Pipe Design
Features a corrugated stainless steel gas tube, yellow polyethylene cover and V0 fire-rated corrugated outer sleeve in a slidable configuration.
Designed for Multiple Installation Routes
The integrated sleeve is designed for specified routes through solid walls, floors, screed, soil and unventilated voids, subject to applicable requirements.
Flexible, Hand-Bendable Tubing
The corrugated stainless steel pipe can be bent by hand to support continuous runs and reduce the need for multiple joints.
FGLink™ Fitting Compatibility
Designed for use with the compatible FlexiGas FGLink™ range, which includes more than 130 fittings according to the supplied product information.
Standards and Fire Testing
Manufactured to BS/EN 15266, certified under BSI Kitemark KM 598726 and specified as passing EN 1775 Annex A and B fire tests.
Convenient 75m Spool
Supplied in a 75-metre spool with metre-marked tubing, a high-visibility yellow jacket and one free roll of silicone tape.
Important Installation Guidance:
Gas pipework must be installed, tested and commissioned by a suitably qualified and competent gas installer in accordance with the manufacturer's instructions, applicable regulations and relevant standards. Confirm pipe sizing, operating pressure, fitting compatibility, sleeve requirements, fire-stopping provisions and electrical bonding arrangements for the specific installation. Do not exceed the stated maximum operating pressure of 0.5 bar.
Key Specifications
| Product |
FlexiGas 28mm Double Sleeved Flexible Gas Pipe – 75m Spool |
| Manufacturer |
FlexiGas™ |
| Model / MPN |
DS-28-75 |
| Product Size |
DN28 (28mm) |
| Spool Length |
75 metres |
| CSST Outer Diameter |
32mm |
| CSST Internal Diameter |
27mm |
| Maximum Diameter Including Sleeve |
41mm |
| Maximum Operating Pressure |
0.5 bar |
| Tubing Material |
1.4404 / 1.4541 stainless steel (BS/EN 10088) |
| Sleeve Design |
Slidable corrugated outer sleeve, specified as V0 fire-rated |
| Outer Cover |
Yellow polyethylene cover |
| Fire Performance |
EN 1775 Annex A and B fire tests passed; jacket classification B-s1,d0 as specified |
| UV Resistance |
Specified as UV resistant |
| Manufacturing Standard |
BS/EN 15266 |
| Certification |
BSI Kitemark KM 598726 |
| Compatible Fittings |
FlexiGas FGLink™ compatible fitting range |
| Electrical Bonding Compatibility |
FG Bond™ system; integrated earthing terminal specified as certified to BS 951:2009 |
| Colour |
Yellow |
| Included Accessory |
One free roll of silicone tape |
| Warranty |
1 year, subject to manufacturer's terms and conditions |
Who Is This Flexible Gas Pipe For?
The FlexiGas DS-28-75 is intended for qualified gas installers and contractors working on commercial and larger domestic gas pipework requiring a 28mm flexible stainless steel gas pipe. Its 75-metre spool can support longer runs and multiple installation projects, while the integrated sleeve is designed to simplify routing through specified building elements. It can be used with compatible FGLink™ fittings and associated FlexiGas installation accessories, subject to the requirements of the project.
For installation convenience, the product can be paired with a FlexiGas spool roller, compatible DS end caps and FGLink™ fittings. Check compatibility and the required components before ordering.
Frequently Asked Questions
What is the length of the FlexiGas DS-28 spool?
The FlexiGas DS-28-75 is supplied as a 75-metre spool of 28mm DN28 double-sleeved flexible gas pipe.
What is the maximum operating pressure?
The stated maximum operating pressure is 0.5 bar. The pipe must be selected and installed within its specified operating limits and in accordance with the manufacturer's instructions.
Does the pipe come with an integrated sleeve?
Yes. It features a double-sleeved pipe-in-pipe design with a slidable corrugated outer sleeve. The intended installation method and any additional protection requirements should be confirmed against the applicable regulations and manufacturer guidance.
Which fittings are compatible with this gas pipe?
The pipe is designed for use with the compatible FlexiGas FGLink™ range. Verify the correct fitting size and type for the DS-28 pipe before installation.
What is included with the 75m spool?
The supplied product information specifies one free roll of silicone tape with every spool. Other fittings and accessories should be purchased separately unless stated otherwise in the product listing.
Flexible 28mm Gas Pipe for Professional Installations
The FlexiGas 28mm Double Sleeved Flexible Gas Pipe (DS-28-75) combines a 75-metre spool, stainless steel construction, an integrated protective sleeve and compatibility with the FGLink™ fitting range. Supplied with one free roll of silicone tape, it is designed to support efficient gas pipework installations. Confirm system suitability, compatible components and installation requirements before ordering.
