FlexiGas DS Contractor Range
DS 40mm Contractor Kit – 15m with 2 Copper Unions
A complete gas pipe installation kit featuring 15 metres of double-sleeved CSST pipe, two copper compression unions and yellow silicone tape for professional gas installation applications.
The FlexiGas DS 40mm Contractor Kit – 15m with 2x Copper Unions (DS-CK40-15M-CC) provides a convenient, ready-to-use solution for commercial gas installation projects. Supplied with a 15-metre coil of double-sleeved FlexiGas DS corrugated stainless steel tubing (CSST), two FlexiGas-to-copper compression unions and a roll of yellow silicone tape, this contractor kit brings essential installation components together in one package.
Featuring an integrated V0 fire-rated sleeve, the FlexiGas DS pipe is designed for installation through suitable walls, floors, screed and unvented voids without requiring additional sleeving where the supplied sleeve meets the applicable installation requirements. The 15-metre pipe length supports longer gas pipework runs, while the included compression unions allow connections to compatible copper pipework at both ends.
The FlexiGas DS-40 contractor kit is specified with BSI Kitemark KM 598726 and EN 15266 certification, with the supplied information also listing fire testing to EN 1775 Annex A and B. Designed for professional gas engineers, it offers a practical pipework package for suitable commercial installations, subject to the relevant design, sizing and installation requirements.
DN40 / 40mm
15m Pipe Length
2 Copper Unions
BSI Kitemark Certified
Sleeve Included
Key Product Highlights
0.5 bar
Maximum operating pressure
Key Features
1. 15-Metre Double-Sleeved CSST Pipe
The kit includes 15 metres of 40mm FlexiGas DS corrugated stainless steel tubing with an integrated outer sleeve, providing a practical solution for suitable longer gas pipework runs in commercial installations.
2. Integrated V0 Fire-Rated Sleeve
The built-in sleeve is designed to meet the stated UK definition of a sleeve and supports installation through suitable walls, floors, screed and unvented voids, subject to applicable standards and installation requirements.
3. Two FlexiGas-to-Copper Compression Unions
The kit includes two dezincification-resistant brass compression unions designed to connect compatible FlexiGas pipework directly to copper pipework, providing connection fittings for both ends of the installation.
4. Designed for Faster Installation
The integrated sleeve and supplied connection fittings help reduce additional preparation and component sourcing. The supplied product information states installation can be up to four times faster than copper, depending on the application and installation conditions.
5. Certified Gas Pipe System
The product specification lists BSI Kitemark KM 598726 and EN 15266 certification, alongside fire testing to EN 1775 Annex A and B. Consult the manufacturer's current technical documentation for the applicable certification scope and installation requirements.
6. Silicone Tape Included
One roll of yellow silicone tape is included for wrapping the gap at the fitting tail after the gas tightness test has been completed, in accordance with the manufacturer's instructions.
What's Included in the Kit?
15m FlexiGas DS-40 Pipe
One 15-metre coil of 40mm double-sleeved CSST pipe with an integrated V0 fire-rated sleeve.
2 Copper Compression Unions
Two FlexiGas-to-copper compression unions made from dezincification-resistant brass.
Yellow Silicone Tape
One roll of silicone tape for the fitting-tail gap, to be used as directed by the manufacturer.
Ideal Applications
- Commercial gas installations requiring suitable 40mm pipework connections.
- Longer gas pipe runs through suitable walls, floors and screed.
- Commercial plant rooms and heating installations.
- Projects requiring connections between compatible FlexiGas CSST and copper pipework.
- Professional gas engineers seeking a longer pre-sleeved pipe coil with copper unions and silicone tape supplied together.
Technical Specifications
| Product Information |
| Manufacturer |
FlexiGas™ |
| Model / Manufacturer Part Number |
DS-CK40-15M-CC |
| Product Type |
Double-Sleeved CSST Contractor Kit |
| Nominal Size |
DN40 / 40mm |
| Pipe Length |
15 metres |
| Pipe Construction |
Corrugated stainless steel tubing (CSST), double-sleeved |
| Maximum Overall Diameter Including Sleeve |
63mm |
| Fittings Included |
2x FlexiGas-to-copper compression unions |
| Fitting Material |
Dezincification-resistant brass |
| Maximum Operating Pressure |
0.5 bar, as supplied |
| Certification |
BSI Kitemark KM 598726; EN 15266 |
| Additional Fire Testing |
EN 1775 Annex A and B, as supplied |
| Sleeve |
Integrated V0 fire-rated sleeve |
| Colour |
Yellow |
| Included Accessory |
1x roll of yellow silicone tape |
| Warranty |
1 year, subject to manufacturer's terms and conditions |
Frequently Asked Questions
1. What is included in the FlexiGas DS 40mm Contractor Kit?
The kit contains a 15-metre coil of 40mm double-sleeved FlexiGas DS CSST pipe, two FlexiGas-to-copper compression unions and one roll of yellow silicone tape.
2. What is the size and length of the pipe?
The supplied pipe is DN40 (40mm) and measures 15 metres in length. Its maximum overall diameter, including the sleeve, is listed as 63mm.
3. Can the FlexiGas DS kit connect directly to copper pipework?
Yes. The kit includes two FlexiGas-to-copper compression unions designed to connect compatible FlexiGas pipework directly to copper pipework. Follow the manufacturer's instructions for fitting compatibility and installation.
4. Does the pipe have a built-in sleeve?
Yes. The pipe features an integrated V0 fire-rated sleeve. Additional protection requirements depend on the installation, applicable standards and the manufacturer's instructions.
5. What is the maximum operating pressure?
The supplied product specifications state a maximum operating pressure of 0.5 bar. Confirm suitability for the intended gas installation using the manufacturer's technical documentation.
6. What certifications does the FlexiGas DS-40 kit have?
The supplied specifications list BSI Kitemark KM 598726 and EN 15266, alongside fire testing to EN 1775 Annex A and B. Refer to current manufacturer documentation for the applicable certification scope.
7. What warranty is supplied with the kit?
The supplied product information lists a 1-year warranty, subject to the manufacturer's terms and conditions.
Shop FlexiGas Pipework at GetPlumb
Explore gas pipework, copper connection fittings and installation accessories for commercial plumbing and heating projects.
Shop FlexiGas Products
At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.
🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
for selected local areas.
Eligible Postcodes Include:
- RG*
- SL*
- OX10*, OX11*, OX49*
- HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
- WD*, HA*, UB*, TW*, KT*
- W1* – W9*
- NW*, SW*
Delivery Time: 2–4 working days
Shipping Cost: £0.00
📦 Standard Shipping (Weight-Based Rates)
For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.
- For cart weight between 0–2 kg, the shipping cost is £4.50 with a delivery time of 2–4 working days.
- For cart weight between 2–24 kg, the shipping cost is £9.99 with a delivery time of 2–4 working days.
- For cart weight between 24 kg and above, the shipping cost is £60 with a delivery time of 2–4 working days.
🧱 Block Salt (Harvey’s) – Unit-Based Shipping
This rate applies only to Harvey’s block salt products.
- £7.99 is charged for every 3 items.
- The charge increases by £7.99 for each additional set of 3 items.
Examples:
- 1–3 items → £7.99
- 4–6 items → £15.98
- 7–9 items → £23.97
Delivery Time: 2–4 working days
📏 Large / Long Items (Length-Based Shipping)
For oversized items where the product length is 1.5 metres or more:
Conditions:
- Product length ≥ 1.5 m
- Cart weight ≤ 40 kg
Shipping Cost: £18.00 (flat rate)
Delivery Time: 2–4 working days
Collection from Store
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.
