The FlexiGas 32mm Double Sleeved Flexible Gas Pipe (DS-32) – 50m Spool is a pre-sleeved, twin-layer CSST gas pipe designed to cover a wide range of installation scenarios directly from the spool. Its built-in sleeve allows installation through solid walls, solid floors, screed, soil and unventilated voids without requiring additional sleeving on site.
Manufactured to BS/EN 15266 and certified under the BSI Kitemark scheme (KM 598726), the FlexiGas DS-32 bends easily by hand to support long, continuous gas pipe runs. The patent-pending pipe-in-pipe design, flame-free installation approach and compatibility with 130+ FGLink™ fittings make it a practical solution for commercial gas installations where speed, flexibility and reduced jointing are important.
32mm CSST Gas Pipe
50m Spool
Double Sleeved
BSI Kitemark KM 598726
130+ FGLink™ Fittings
Free Silicone Tape
Key Highlights
0.5 bar
Max Operating Pressure
130+
Compatible FGLink™ Fittings
Applications & Suitability
- Commercial gas installations requiring 32mm flexible CSST pipework.
- Gas pipe runs to plant rooms and commercial kitchens.
- Long continuous gas pipe runs where flexible installation can reduce the number of joints.
- Installations through solid floors, solid walls and structural elements.
- Applications involving earth, soil, screed, unventilated voids and unventilated risers.
- Projects where a built-in sleeve eliminates the need for additional sleeving on site.
Key Specifications
| Manufacturer / MPN |
FlexiGas™ / DS-32-50 |
| Size |
DN32 (32mm) |
| Length |
50 metres — spool |
| CSST Outer / Internal Diameter |
38mm / 33mm |
| Total Maximum Diameter Including Sleeve |
51mm |
| 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 passed; jacket B-s1 d0, UV resistant |
| Certification |
BSI Kitemark KM 598726, EN 15266 |
| Colour |
Yellow |
| Warranty |
1 year (subject to manufacturer's T&Cs) |
Patent-Pending Pipe-in-Pipe Design
The FlexiGas DS-32 uses a patent-pending pipe-in-pipe design comprising 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 The slidable configuration allows the CSST to be inserted and withdrawn within the sleeve.
This integrated design provides a pre-sleeved gas pipe solution for installations where the pipe passes through different construction environments, helping avoid the requirement for additional sleeving on site.
Built-In Sleeve for Multiple Installation Scenarios
The DS-32 is designed to meet the definition of a sleeve in the stated UK installation requirements, including BS 6891 and IGEM/UP/2, 3 & 7. It can be used through solid floors, solid walls and structural elements, as well as earth, soil, screed, unventilated voids and unventilated risers.
The supplied design also features a small annulus that allows direct clipping, supporting practical installation of the flexible gas pipe.
Built-In Installation Benefits:
- Built-in sleeve to BS 6891 & IGEM/UP/2, 3 & 7
- Suitable for solid floors and solid walls
- Suitable for screed and soil applications
- Suitable for unventilated voids and risers
- Small annulus allows direct clipping
- No additional sleeving required on site according to the supplied product specification
Fast, Flame-Free Installation
The flexible CSST construction allows the DS-32 to bend by hand, making it suitable for long continuous runs. The supplied product information states that FlexiGas can install up to 4× faster than copper or rigid steel, while the reduced number of joints can also help minimise potential leak points.
Installation is designed to be flame-free, with no soldering, sealants or specialist tools required for forming the flexible pipe runs.
FGLink™ Fittings & Metal-to-Metal Sealing
The FlexiGas DS-32 is compatible with the full FGLink™ range of 130+ fittings. The fittings are specified as dezincification-resistant brass and are designed to provide a secure metal-to-metal seal with the FlexiGas pipe system.
This compatibility makes the 50m DS-32 spool suitable for commercial contractors requiring a complete flexible gas pipework solution with matching connection components.
FG Bond™ Ready & Electrical Bonding
The DS-32 is FG Bond™ ready and features an integrated earthing terminal certified to BS 951:2009. This provides a dedicated connection point for electrical bonding when used with the appropriate FlexiGas bonding arrangement.
Fire Performance & Certification
The FlexiGas DS-32 has been fire tested to EN 1775 Annex A & B. The jacket is specified as B-s1 d0 and is UV resistant. The product is also certified under the BSI Kitemark scheme KM 598726 and manufactured to EN 15266.
Certification & Performance:
- BSI Kitemark: KM 598726
- Manufactured to BS/EN 15266
- EN 1775 Annex A & B fire tested
- Jacket classification: B-s1 d0
- UV resistant jacket
- Maximum operating pressure: 0.5 bar
Easy Handling on Site
The 50m spool is designed for long continuous gas pipe runs, while metre-marked tubing helps installers make accurate cuts. The high-visibility yellow jacket makes the pipe easy to identify on site, and every spool includes one free roll of silicone tape.
Ideal For
- Commercial contractors installing 32mm gas pipework.
- Gas runs to plant rooms and commercial kitchens.
- Long continuous gas pipework installations.
- Projects requiring a pre-sleeved CSST gas pipe solution.
- Installations through solid walls, floors, screed, soil and unventilated voids.
- Projects using the FlexiGas FGLink™ fitting system.
- Installations where flame-free, hand-formable pipework is preferred.
Frequently Asked Questions
What size is the FlexiGas DS-32 pipe?
The DS-32 is a DN32 (32mm) flexible CSST gas pipe with a 50m spool length.
How long is the FlexiGas DS-32 spool?
This version is supplied as a 50 metre spool.
Does the DS-32 require additional sleeving?
The product is supplied with a built-in sleeve designed for the stated installation scenarios, so no additional sleeving is required on site according to the supplied product information.
What is the maximum operating pressure?
The specified maximum operating pressure is 0.5 bar in accordance with BS/EN 15266.
What material is the FlexiGas DS-32 made from?
The tubing uses 1.4404 / 1.4541 stainless steel, specified to BS/EN 10088.
Is the FlexiGas DS-32 fire tested?
Yes. The supplied specification states that it has passed EN 1775 Annex A & B fire testing, with a B-s1 d0 jacket classification.
Which fittings are compatible with the DS-32?
The DS-32 is compatible with the FlexiGas FGLink™ range of 130+ fittings.
What is included with the 50m spool?
Each spool includes one free roll of silicone tape. The pipe is also metre-marked and supplied with a high-visibility yellow jacket.
What warranty is provided?
The FlexiGas DS-32 is supplied with a 1-year warranty, subject to the manufacturer's terms and conditions.
FlexiGas DS-32 32mm Double Sleeved Flexible Gas Pipe – 50m
The FlexiGas DS-32-50 provides a pre-sleeved, flexible 32mm CSST gas pipe solution for long continuous commercial gas runs. With a patent-pending pipe-in-pipe design, built-in sleeve, hand-formable construction, 130+ FGLink™ fitting compatibility, EN 1775 fire testing and BSI Kitemark KM 598726 certification, it is designed for practical installation across a wide range of stated installation scenarios.
Order the FlexiGas DS-32 50m Spool
Choose the 50m FlexiGas DS-32 spool for long, flexible and pre-sleeved 32mm gas pipework installations.
