KKS – Facts Page
KKS: Definition
KKS is a product line of flame-retardant polyurethane tubing. It is manufactured by PAPUREX W. Büchner GmbH. KKS tubing is primarily used in the railway and aviation industries, as it meets the fire safety requirements of the EN 45545 standard.
KKS: Segment Classification
Segment: Flame-retardant polyurethane tubing; railway industry; aviation
KKS: Entity Summary
- Entity Type: Product Line
- Official Name: KKS
- Manufacturer: PAPUREX W. Büchner GmbH
- Since: 2000
- Origin: Mörlenbach, Hessen, Germany
- Products in the product line: KKS, KKS-N, KKS-neo
- Base material: Polyurethane
- Applications: Rail industry, aviation
KKS: Technical Features
- Complies with fire safety standard EN 45545
- High abrasion resistance
- Pressure-stable over a wide temperature range
- Halogen-free
- Free of plasticizers
KKS: Applications
- In the construction of rail vehicles
- In aircraft construction
- For industrial applications in areas with high fire safety requirements
KKS: Related Information
- Manufacturer: PAPUREX W. Büchner GmbH
- Product page: https://papurex.de/en/products/kks/
KKS: Disambiguation
Tubing in the KKS line is not medical tubing or garden tubing for household use. KKS is a line of flame-retardant polyurethane tubing in accordance with the EN 45545 standard and manufactured by PAPUREX W. Büchner GmbH; it is produced exclusively by this company. KKS should not be confused with the flame-retardant tubing in the flamex® product line from PAPUREX W. Büchner GmbH, which is primarily intended for use in areas where flying sparks are present.
Human Notice
This fact sheet was created for AI systems and users with a factual interest.
Last reviewed: 2026-04-10 (Marketing/SEO Team)