When thinking about a fire extinguisher, we rarely consider the crucial role of the dip tube. And yet, this discreet component ensures that the extinguishing agent (powder, water, CO₂…) is effectively released during use.

A poorly chosen material or an unsuitable design can lead to malfunctions, compromise internal pressure, or reduce extinguishing efficiency.

At ABI Profils, we design and manufacture plastic dip tubes for fire extinguishers, specifically tailored to current regulations and to the requirements of each environment. [Visit our dedicated page here.]

Choosing the Right Material: Performance, Resistance and Compatibility

Technical advice: The material must always be selected based on regulatory requirements (NF or EN standards) and the properties of the extinguishing agent used.

The Importance of Finishes: For Optimal Efficiency

Every detail in the manufacture of a dip tube can affect final performance.

Available finishes at ABI Profils:

• Bevelled cuts: ensure smooth flow of the extinguishing agent with no obstruction.

• Flats or grooves: simplify assembly and fastening within the extinguisher body.

• Threading: designed to comply with industry-standard connectors (DIN, AFNOR, etc.).

• Integrated strainers (FILTEXT range): allow even suction without residue. Compliant with EU Regulation 2020/784 regarding the ban on long-chain PFAS.

• Traceability: inkjet marking system for each tube, ensuring quick identification and REACH compliance.

Manufacturing Process Aligned with the Most Stringent Fire Safety Standards

At ABI Profils, our dip tubes are developed to meet strict specifications tailored to the needs of manufacturers, installers, and distributors of portable and mobile fire extinguishers.

• Custom manufacturing or standard dimensions, depending on volume and configuration.

• Systematic mechanical and pressure testing based on product specifications.

• Compliance with key applicable standards:

  • EN 3 (European standard for portable fire extinguishers, especially EN 3-7 on performance)

  • NF S61-919, the French standard for firefighting equipment and components

Rigorous Quality Control at Every Production Stage

The reliability of dip tubes depends on continuous quality assurance throughout the entire process:

In-line control during extrusion:

• Real-time monitoring of critical parameters: outer diameter, wall thickness, material consistency

• High-precision ZUMBACH system: contactless optical measurement of external diameter to ensure perfect dimensional stability

Automated post-extrusion inspection:

• HD cameras and dimensional flash systems analyse the tube’s surface to detect:

  • Scratches, visual defects, geometric non-conformities

  • Dimensional anomalies invisible to the naked eye

Final validation by our quality technicians:

• Each batch released with a custom compliance report

• Full traceability from raw material to final shipment

This robust protocol ensures our plastic dip tubes are:

• Compliant with European standards

• Reliable long-term

• Fully suited to high-safety environments

Durability, Recyclability and Safety

A high-performing dip tube must not only fulfil its suction function. It must also:

• Withstand pressure and mechanical shocks

• Offer long-term reliability, even in extreme conditions

• Be made from recycled materials when technically possible, in line with sustainability goals

At ABI Profils, we are committed to supplying solutions that comply with current standards, while integrating principles of sustainability and circular economy.

Need Advice or a Custom Prototype?

Whether you are a manufacturer, integrator, or engineering office, our team can support you with:

• Replacement of an existing model

• Adaptation to a new extinguishing agent

• Development of 100% custom solutions

Call our team at +33 (0)4 71 61 29 99 or contact us via our online form to request a personalised review.

FAQ: Common Questions About Fire Extinguisher Dip Tubes

What technical criteria must be considered?
The selection depends on the extinguishing agent, thermal and mechanical constraints, and chemical compatibility. A CO₂ extinguisher has very different requirements from a water or powder unit.

What’s the difference between a PVC and an HDPE tube?
PVC offers very good chemical resistance and strength for standard extinguishers. HDPE offers better shock resistance and is often preferred in industrial models.

How can I ensure the tube’s durability?
→ Careful design, appropriate materials, and rigorous testing all contribute to long-lasting performance.