ACCUAFLY™ NSF51 PE Ø6×8 Food-Grade Tube, Natural

1. Purpose and operating principle

The tube has a 6 mm internal diameter and an 8 mm external diameter. Its polyethylene construction provides a smooth internal surface. ACCUAFLY™ is manufactured by Medifly S.r.l. in Italy, and the manufacturer indicates NSF51 certification for the series.

2. Technical specifications

⚠️ Unconfirmed data for the specific Ø6×8 version: working pressure, burst pressure, minimum bending radius, weight per metre, wall thickness and coil length. These values must not be transferred from other Medifly tubes without confirmation for ACCUAFLY™ Ø6×8.

3. Construction features

• smooth internal surface;
• manufacturer-declared absence of additives;
• high chemical resistance of the material;
• surface marking every 50 cm;
• M.O.C.A. conformity documentation available on request.

Medifly warns that the polyethylene tube must not be installed with fittings that excessively deform the tube end: expansion of the end by more than approximately 15% may cause operating problems and creep.

4. Installation recommendations

1. Use fittings designed for an 8 mm external tube diameter.
2. Cut the tube square and perpendicular to its axis.
3. Do not use fittings that excessively expand or deform the tube end.
4. Follow Medifly’s warning concerning excessive expansion; approximately 15% is indicated as a reference limit.
5. When using a push-in fitting, insert the tube fully and verify secure retention by the collet.
6. Do not transfer working-pressure values from other PE/PELD tubes without checking the documentation for ACCUAFLY™ Ø6×8.
7. In food-contact installations, use components appropriate for the process and food-contact requirements.

Important: the standard ACCUAFLY™ marking indicates a maximum temperature of 80 °C. This should not automatically be interpreted as a continuous operating temperature under all conditions.

5. Alternatives and comparison

ACCUAFLY™ Ø6×8 should not be replaced with another tube solely because the dimensions are 6×8 mm. Material, application, food-contact compliance, temperature, pressure, fitting type and process requirements must be checked.

⚠️ Exact catalogue numbers for these alternatives are not confirmed in the public sources used. No specific product from another manufacturer should be considered a direct replacement without parameter verification.

Comparison within the series: Medifly manufactures ACCUAFLY™ in different diameters and versions. Another size must be selected according to actual internal/external diameters, system requirements and fitting compatibility.

6. Common mistakes

• Selecting the tube only by the 6×8 mm size without checking food-contact compliance.
• Replacing ACCUAFLY™ with ordinary PE/PA/PU pneumatic tubing without checking food-contact requirements.
• Using an unverified working-pressure value.
• Excessively expanding the polyethylene tube end during fitting installation.
• Using a push-in fitting designed for a different external diameter.
• Assessing temperature only from the PE material.
• Ignoring chemical compatibility with the conveyed medium.

7. Applications

ACCUAFLY™ NSF51 PE Ø6×8 is intended for systems transporting food products, beverages and liquids for which food-contact compliant materials are required, as well as food-processing production lines.

Actual suitability must be determined according to the medium composition, temperature, pressure, contact time and process requirements.

8. Expert opinion

Vitali Boluchevski, Lead Engineer, Acvatron SRL, 18 years of experience

For food-processing lines, tube size alone is not sufficient for selection. An important feature of ACCUAFLY™ is the NSF51 certification indicated by the manufacturer for the series and the possibility of requesting M.O.C.A. documentation with the order. For a specific installation, the internal and external diameter, material compatibility with the medium, and actual operating pressure and temperature should be checked. Matching dimensions alone do not prove interchangeability.

9. FAQ

Is ACCUAFLY™ NSF51 PE Ø6×8 suitable for food products?

The ACCUAFLY™ series is intended by Medifly for food products and beverages and carries the NSF51 certification indicated by the manufacturer.

What does Ø6×8 mean?

It means a 6 mm internal diameter and an 8 mm external diameter.

What is the maximum temperature indicated for the tube?

The standard ACCUAFLY™ Ø6×8 marking indicates MAX 80°C. Actual operating conditions and manufacturer documentation must be considered.

Can any push-in fitting be used with 6×8 tubing?

No. The fitting must be designed for an 8 mm external diameter and be compatible with the tube material and operating conditions.

Can a material certificate be obtained?

Medifly indicates that M.O.C.A. conformity documentation can be requested when placing the order.