Knowledge Base
Technical know-how on pneumatic plastic hoses, materials and applications. Here you will find detailed information on materials, properties and applications of our products.
Material Detail Pages
A dedicated page per material with datasheet excerpts, typical values and application notes — based on original datasheets from the raw material manufacturers (DOW, BASF Elastollan®, Evonik VESTAMID®).
PE — Polyethylene
Lightweight, impact-resistant, acid & alkali resistant. Standard for control lines and laboratory work. Data: DOW LDPE 150E.
LD-PE DOW 150E RecyclablePUR — Polyurethane
Highly flexible, abrasion-resistant, dynamic-rated. Polyester & polyether types. Data: BASF Elastollan® 1154, 1198, C 98 A.
Elastollan® Shore A/D FoodPA 12 — Polyamide 12
Pressure- and temperature-resistant, fuel- and oil-resistant. Standard for compressed air brakes per DIN 73378. Data: Evonik VESTAMID® L2124, L2140, E55-S3.
VESTAMID® DIN 73378 PA 12-HL / PHLMore Topics
Applications
Pneumatics, robotics, food industry, automotive, welding technology and more.
Pneumatics Robotics FoodStandards & Certifications
DIN standards, material standards and fire protection classifications.
DIN 73378 UL 94Spirals — Axial vs. Radial
Difference between axial and radial winding, applications and selection criteria.
Axial Radial DUO/TRIOTemperature & Pressure Resistance
How temperature affects operating pressure, pressure diagrams and safety factors.
Pressure Bend RadiusGlossary
Technical terms in hose technology explained: OD, ID, wall thickness, bending radius, Shore hardness and more.
Terms LexiconStandards & Certifications
DIN 73378 / DIN 74324
German industrial standard for polyamide tubes in vehicles. PA 12 PHL tubes from eba pneumatic comply with these standards and are thus approved for use in compressed air brake systems, fuel and hydraulic lines.
DIN EN ISO 9001
Our quality management system is certified according to DIN EN ISO 9001.
Spirals — Axial vs. Radial
Spiral hoses are wound from straight hoses and offer the advantage of self-retracting when not in use. The choice between axial and radial winding depends on the installation situation.
Axial Winding
In axial winding, the spiral extends along the longitudinal axis. This is the standard design and is suitable for most applications where the hose is pulled out along one axis — e.g. on machines, in pneumatics and for compressed air connections.
Radial Winding
In radial winding, the spiral forms flat rings. This design is ideal for compact installation situations and tight installation spaces, as the spiral expands sideways rather than lengthwise.
Multi-Spirals (DUO, TRIO, QUADRO)
For complex pneumatic systems, multiple hoses are welded together into hose groups. DUO (2 lines), TRIO (3 lines) and QUADRO (4 lines) offer space-saving parallel line routing. The ends are separated to the required length for assembly and used exclusively with union nuts.
Temperature & Pressure Resistance
The permissible pressure load of a pneumatic hose depends significantly on the ambient and media temperature. As the temperature increases, the permissible pressure resistance decreases. All operating pressure specifications refer to a media and ambient temperature of +23 °C and include a 3x safety factor for the operating medium air.
Important Relationships
At +60 °C, the usable pressure resistance is typically only about 40–60% of the value at +23 °C. Below 0 °C, pressure resistance increases, but flexibility decreases. The minimum bending radius indicates how tightly a hose may be bent without affecting its lifespan. It varies depending on the outer diameter and material.
Glossary
| Term | Explanation |
|---|---|
| AD | Outer Diameter (OD) — the external diameter of the hose in mm |
| ID | Inner Diameter — the internal diameter of the hose in mm |
| WD | Wall Thickness — difference between OD and ID, divided by 2 |
| Bend Radius | Minimum radius to which a hose may be bent without damage |
| Operating Pressure | Maximum permissible pressure in continuous operation (at +23 °C, safety factor 3) |
| Shore-A | Hardness of a plastic — the higher the value, the harder the material. PUR hoses typically have Shore 98A. |
| Hydrolysis-resistant | Resistant to decomposition by water/moisture at elevated temperatures |
| Recovery | Ability of a hose to return to its original shape after deformation |
| Push-In / Push-Out | Push-fit quick connector system for fast assembly and disassembly without tools |
| Drag chain capable | Suitable for use in energy chain systems (drag chains) with millions of bending cycles |
| Plasticizer-free | Contains no plasticizers — therefore no aging, embrittlement or substance migration |
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