Long Ferrule (Type A), 1.4435 Weldtron® 0.60 µm EP
Weldtron range, Dockweiler – Tubes and fittings for ultrapure fluids
The Weldtron range is designed for conveying ultrapure fluids in the pharmaceutical and biotechnology industries. It meets the requirements of Purified Water (PW), Water for Injection (WFI), Pure Steam and Sterile Compressed Air loops.
Surface finishes and hygienic classes
| Finish | Code | DIN class | Internal Ra | External Ra |
| Bright annealed | BF | H3o | ≤ 0.80 µm (32 µin) | < 0.8 µm |
| Electropolished | EP | HE3o | ≤ 0.60 µm (24 µin) | < 0.8 µm |
Compliant with DIN 11865 and DIN 11866
Material
AISI 316L / 1.4435 BN2 stainless steel with controlled sulphur content, ensuring optimum weldability and enhanced corrosion resistance in high-purity environments.
Dimensional standards
The range is available in three dimensional standards: Metric, ISO 1127 and Imperial (compliant with DIN 11866 series A, B or C)
Traceability and packaging
Each component is supplied with its 3.1 material certificate.
Tubes and fittings are marked (grade, batch number, heat number, dimensions).
Fittings are packed in individual polyethylene bags with capped ends.
Tubes are oxygen-degreased according to ASTM A632 S3.