Din 11864 1 2a 3 Aseptic Liner Clamp

A din11864 union standardizes hygienic stainless steel pipe joints engineered to eliminate fluid entrapment pockets and bacterial harborage in sterile process pipelines. The specification defines tight axial tolerances that guarantee smooth inner bore alignment and regulated elastomeric compression, ensuring aseptic fluid purity across demanding processing regimes.

Screwed Ferrule Geometries and Sealing Behavior

Pipelines assembled with din 11864 1 fittings utilize threaded ferrules coupled with slotted round nuts. Metallic stops arrest axial travel upon complete tightening, preventing elastomer intrusion into the product stream and securing smooth interior transitions.

Defined volume gaps prevent localized over-compression when operators tighten connecting collars. Thread profiles withstand repetitive washdown protocols without galling or gall-induced seizing.

Flange Face Alignments for Rigid Processing Skids

For high-pressure installations requiring rigid pipe runs, din 11864 2a specifies aseptic flanged connections featuring recessed O-ring grooves. Precision-machined interlocking spigots maintain concentric axial alignment, resisting pipeline vibration during high-velocity fluid transfers.

Recessed elastomer pockets isolate sealing rings from turbulent boundary layers. This configuration preserves joint integrity through continuous thermal sterilization runs without requiring periodic bolt re-torquing.

Structural Performance Across Aseptic Couplings

Rapid Maintenance Through Aseptic Liner Clamps

Where processing lines demand rapid disassembly without fluid contamination, din 11864 3 defines clamp assemblies featuring aseptic liner ferrules locked inside heavy-duty clamps. These liner clamp configurations distribute radial clamping forces evenly across tapered metallic flanges, producing a continuous flush conduit wall.

Two-piece hinged clamp collars allow rapid manual removal during routine inspection cycles. Machined ferrule lips lock elastomeric gaskets into concentric alignment, avoiding misalignment errors common in standard tri-clamp fittings.

Surface Micro-Finishes Preventing Biofilm Deposition

Inner tube diameters finished below Ra 0.8 micrometers eliminate microscopic crevices where organic deposits gather. Seamless bore junctions preserve laminar velocity profiles, ensuring complete chemical displacement throughout cleaning intervals.

Controlled thermal expansion prevents micro-vacuum formation during rapid ambient cool-down cycles, sealing fluid boundaries against atmospheric ingress.

Technical Data

Product Parameter