FlexiGas 40mm Double Sleeved Flexible CSST Gas Pipe - 50m Spool
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Description
FlexiGas DS Flexible Gas Pipe Range
FlexiGas 40mm Double Sleeved Flexible Gas Pipe (DS-40) – 50m Spool
A pre-sleeved DN40 CSST gas pipe designed for long, continuous gas installations, with an integrated fire-rated sleeve and flexible routing for professional contractors.
The FlexiGas 40mm Double Sleeved Flexible Gas Pipe (DS-40) – 50m Spool is a pre-sleeved, twin-layer corrugated stainless steel tubing (CSST) solution for commercial gas installations. Supplied in a 50-metre spool, it is designed to simplify long gas pipe runs while reducing the need for multiple joints compared with conventional rigid pipework.
Featuring an inner stainless steel gas pipe and an integrated V0 fire-rated corrugated sleeve, the FlexiGas DS-40 is designed for installation through solid walls, solid floors, screed, soil and unventilated voids, as described in the supplied product information. The flexible pipe can be bent by hand to help installers route it around site obstacles and create continuous runs with fewer connections.
Manufactured to BS/EN 15266 and certified under the BSI Kitemark scheme (KM 598726), this DN40 flexible gas pipe has a stated maximum operating pressure of 0.5 bar. It is compatible with the FlexiGas FGLink fitting range, with more than 25 DN40 fitting types available separately. Each spool also includes a free roll of silicone tape.
Key Product Highlights
Pipe Size
DN40
40mm nominal size
Spool Length
50 Metres
For extended continuous runs
Max Operating Pressure
0.5 bar
As specified for BS/EN 15266
Warranty
1 Year
Subject to manufacturer's terms and conditions
Key Features
1. Patent-Pending Pipe-in-Pipe Design
Combines an inner corrugated stainless steel gas pipe with a yellow PE cover inside a V0 fire-rated corrugated sleeve in a slidable configuration, allowing the CSST to be inserted and withdrawn.
2. Integrated Protective Sleeve
Designed for a range of installation scenarios, including solid walls, solid floors, structural elements, screed, soil, unventilated voids and unventilated risers, subject to applicable installation requirements.
3. Flexible, Flame-Free Installation
Bends by hand to help create long continuous runs with fewer joints. The supplied product information states that installation can be up to four times faster than copper, without soldering or specialist pipe-bending tools.
4. Compatible FGLink Fittings
Compatible with the FlexiGas FGLink range, which offers more than 25 DN40 fitting types. The range uses dezincification-resistant brass fittings with metal-to-metal sealing; fittings are available separately.
5. FG Bond Ready
Can be paired with the FG Bond integrated earthing terminal, stated as certified to BS 951:2009, to support a tidy bonding installation. Bonding components are not listed as included with this spool.
6. Clear On-Site Identification
The yellow jacket and metre markings help with identification and measuring during installation. One roll of silicone tape is included for use as directed by the manufacturer's installation instructions.
What's Included?
FlexiGas DS-40 Pipe Spool
One 50-metre spool of DN40 (40mm) double-sleeved flexible CSST gas pipe with an integrated protective sleeve.
Silicone Tape
One free roll of yellow silicone tape, for application in accordance with the product's installation instructions.
Ideal Applications
- Commercial gas installations requiring long DN40 (40mm) pipe runs.
- Plant rooms and commercial kitchens where flexible routing can help simplify installation.
- Projects routing pipework through walls, floors, screed and other specified installation locations, subject to applicable regulations and manufacturer guidance.
- Installations requiring accurately measured lengths from a continuous 50-metre spool.
- Projects using compatible FlexiGas FGLink DN40 fittings, DS end caps and the FlexiGas spool roller, available separately.
Technical Specifications
| Manufacturer | FlexiGas™ |
| Manufacturer Part Number (MPN) | DS-40-50 |
| Nominal Pipe Size | DN40 (40mm) |
| Spool Length | 50 metres |
| CSST Outer Diameter / Internal Diameter | 50mm / 41mm |
| Maximum Diameter Including Sleeve | 63mm |
| Maximum Operating Pressure | 0.5 bar (BS/EN 15266) |
| Tubing Material | 1.4404 / 1.4541 stainless steel (BS/EN 10088) |
| Fire Performance | EN 1775 Annex A & B tested; jacket rated B-s1 d0 and UV resistant, as specified in the supplied information |
| Certification | BSI Kitemark KM 598726; BS/EN 15266 |
| Colour | Yellow |
| What's Included | 50m DS-40 pipe spool and one roll of silicone tape |
| Warranty | 1 year, subject to manufacturer's terms and conditions |
Frequently Asked Questions
What is the FlexiGas DS-40-50 spool used for?
It is a 50-metre spool of DN40 (40mm) double-sleeved CSST flexible gas pipe intended for suitable commercial gas installations, including long runs to plant rooms and commercial kitchens.
Does the pipe have a built-in sleeve?
Yes. The product features an integrated corrugated sleeve around the inner CSST pipe. Installation must follow the manufacturer's instructions and applicable gas installation requirements for the specific location.
What is the maximum operating pressure?
The supplied specification lists a maximum operating pressure of 0.5 bar under BS/EN 15266. Confirm suitability for the intended system and installation before use.
Are fittings included with the 50m spool?
The listed contents include the 50-metre pipe spool and one roll of silicone tape. Compatible FlexiGas FGLink fittings, DS end caps and the spool roller are available separately.
How long is the warranty?
The supplied product information states a 1-year warranty, subject to the manufacturer's terms and conditions.
Order FlexiGas DS-40-50 from GetPlumb
Shop FlexiGas flexible gas pipe and compatible fittings for professional gas installation projects.
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