Flame-retardant
SALDAFORM®
Highly flexible twin hose for transporting acetylene, oxygen and other welding gases in oxyacetylene welding applications. Two hoses with integrated separation: blue for oxygen, red for acetylene — the classic colour convention in the welding industry. Complies with EN ISO 1307:2008 and ISO 3821:2019 (specific standard for gas hoses for welding). Made of synthetic rubber for chemical and temperature resistance.
- Twin welding hose
- Oxygen + acetylene gas
- ISO 3821:2019
- −25 °C to +65 °C
- Highly flexible
- Cut to length
Why this hose?
SALDAFORM® is a specialised twin hose for oxyacetylene welding — a hose consisting of two hoses bonded together, so oxygen and acetylene can be transported parallel in one single hose section. It is the classic welding hose construction used on handheld and mobile welding equipment.
The colour convention is international standard: blue for oxygen, red for acetylene. ISO 3821:2019 is the specific standard for gas hoses for welding and covers material selection, pressure classes and fire resistance.
Never confuse oxygen and acetylene hoses. The blue (oxygen) and red (acetylene) colour coding is not cosmetic — it is a safety convention. Incorrect connection can lead to serious accidents. If in doubt about which hose belongs to which gas, contact Particulair before installation.
Where it is used
In practice SALDAFORM® is used for welding on construction sites, mobile welding equipment and welding robots where a combined oxygen+acetylene distribution is necessary.
The formal product name is SALDAFORM®. In daily use: "the twin welding hose".
Technical specifications
Specifications are current as of 15 April 2026 and refer to 20 °C unless otherwise stated.
| Material | Synthetic rubber (core and outer cover) |
|---|---|
| Colour | Black core; blue (oxygen) and red (acetylene) outer covers |
| Wall construction | Twin construction with two integrated hoses, textile reinforcement |
| Temperature range | −25 °C to +65 °C |
| Working pressure | 20 bar |
| Burst pressure | 60 bar |
| Standard | ISO 3821:2019 (specific for welding gas hoses) |
| Cut to length | Yes |
| Manufacturer SKU (model group) | 3260 |
Dimensions and ordering
The table shows the main variants from the manufacturer's factsheet. Fields without a value (—) are not specified. Diameters, pressure values and bend radii are normative; weights and roll lengths are typical production values.
Overpressure and underpressure values are recommended operating limits; the product can be subjected to higher loads on request. Bend radius is measured along the inside of the hose bend.
Standards and compliance
The hose is certified or documented to the following standards:
- EN ISO 1307:2008. International hose format.
- ISO 3821:2019. Specific standard for welding gas hoses.
- REACH (EC 1907/2006) and RoHS 2011/65/EU. The manufacturer holds declarations of compliance.
Documentation and downloads
Additional documents about this hose, its compliance and installation. Click to download as PDF in a new tab.
Help with material selection
Even though this hose is not ATEX-relevant, these two articles provide useful background on electrical resistance and industrial safety — important if you later combine the hose with electrical equipment or work in mixed environments:
Industries that use it
The hose is used for oxyacetylene welding:
Construction, vehicle, welding and metal industries use the hose as a standard twin-gas hose for mobile welding.
Custom lengths and assemblies
The hose can be cut to length and assembled with couplings, cuffs and threaded fittings through Particulair's custom hose assemblies.
We offer guidance on material choice, coupling system and grounding, so the hose fits correctly into the overall system. If there is any doubt about zone classification or resistance requirements, a short conversation before ordering is well worth the time.
Frequently asked questions
Which gases can I transport in SALDAFORM®?
Classic: oxygen (in the blue hose) and acetylene (in the red). The hose is certified for oxyacetylene welding applications. Other welding gases (argon, CO₂) should be validated separately — contact Particulair if in doubt.
Why is the dimension table missing?
SALDAFORM®'s factsheet uses a specialised 4-column twin format with separate dimensions for the oxygen and acetylene hoses. Our standard parser cannot machine-extract this format. Contact Particulair for specific dimensions and article numbers.
Can the hose be supplied cut to length with couplings?
Yes. SALDAFORM® can be cut to length and assembled with couplings, cuffs and threaded fittings through Particulair's custom hose assemblies. We provide guidance on coupling system and sealing so the hose fits correctly into the overall installation.
How do I order the hose, and where do you deliver?
The hose is ordered through Particulair (Karlslunde, Denmark). We deliver to Denmark, the EU and selected third countries such as Norway and Switzerland. Standard dimensions can typically be delivered in 1-2 weeks; custom assemblies and larger volumes require slightly longer lead time.
What is the hose's expected service life?
Service life depends on operating conditions: loading, temperature, chemical exposure, UV and mechanical movement. In standard industrial use, expected life is 3-7 years. Aggressive conditions (high temperatures, continuous flexing, chemical vapours) reduce service life. We recommend regular visual inspection for cracks, deformation or discolouration.
How is the hose best stored before use?
Store the hose dry, at room temperature (15-25 °C) and out of direct sunlight. Avoid contact with ozone-generating equipment (welding equipment, engines). If stored on a reel, the bend must be larger than the specified minimum radius to avoid permanent deformation. Proper storage significantly extends shelf life.
What is the minimum bend radius, and what happens if I go below it?
Minimum bend radius is the smallest radius the hose can be bent to without permanent deformation or internal damage. The table above shows specific values for each dimension. Bending the hose below this limit can collapse the wall, kink the spiral or damage the inner coating. The result is reduced flow, increased pressure loss and shorter service life. Always use bend radius as a design constraint in installation.
Which chemicals is the hose resistant to?
Specific chemical resistance depends on material selection, concentration and temperature. The manufacturer maintains an extensive chemical resistance table showing compatibility for hundreds of chemicals. It can be downloaded from the Documentation section above. If in doubt about a specific chemical or mixture, contact Particulair — we can advise based on your concrete process.