Aseptic Union Liner Series A DIN 11864 DIN

Key Features

• DIN 11864-1 Form A Compliance – Manufactured strictly according to German aseptic fitting standards, ensuring interchangeability and compatibility with existing systems

• Dead-Space-Free Sealing – Precision O-ring groove design eliminates crevices where product residues could accumulate, minimizing contamination risk

• 316L Stainless Steel Construction (1.4404) – Offers exceptional corrosion resistance and durability for demanding sterile applications

• Orbital Welding Ready – Extended welding ends enable seamless integration into stainless steel piping systems

• Precision Surface Finish – Available in hygiene classes H3 (Ra ≤ 0.8 µm) and H4 (Ra ≤ 0.4 µm) for superior cleanability

• Multiple O-Ring Material Options – Compatible with Viton, NBR, silicone, EPDM, Gylon, and PTFE O-rings to suit diverse process media

• Wide Size Range – Available from DN10 to DN100 (10mm to 100mm)

Key Advantages

• Maximum Sterility Assurance – Dead-space-free design prevents microbial growth and ensures product integrity in critical aseptic processes

• Superior Cleanability – Precision surface finishes support effective CIP (Clean-In-Place) and SIP (Sterilize-In-Place) procedures

• Reliable Leak-Proof Seal – O-ring sealing system provides secure, leak-free connections even under demanding process conditions

• Long Service Life – High-grade 316L stainless steel construction ensures durability and performance through repeated sterilization cycles

• Flexible Installation – Compatible with both orbital and manual welding methods, offering versatility for different fabrication requirements

• Industry Proven – Developed specifically for the food, chemical, and pharmaceutical industries to meet their exacting hygienic requirements

How It Works

The DIN 11864 Aseptic Union Liner Series A operates as part of a three-component screwed connection system-:

1. Assembly – The liner is welded to the pipe end (orbital or manual welding), while the corresponding male part is welded to the opposing pipe end

2. Sealing – An O-ring is placed in the precision-turned groove on the liner face, creating a dead-space-free seal when the two components are brought together

3. Securing – A union nut is threaded over the connection, compressing the O-ring to form a secure, leak-proof, hygienic seal

4. Sterile Flow Path – The assembled connection provides a smooth, crevice-free interior that prevents product residue accumulation and maintains sterility

5. Maintenance Access – The screwed design allows for easy disassembly for inspection, maintenance, or seal replacement

This design delivers a detachable yet highly reliable aseptic connection, combining the security of a permanent weld with the flexibility of a serviceable joint.

Why Choose Us

• Certified Quality – All our DIN 11864 Aseptic Union Liners are 3A Sanitary Standards certified and CE certified, manufactured under an ISO 9001 quality management system. Material test reports are supplied with every order-

• Premium Materials – We use only high-grade 316L stainless steel (1.4404), offering superior corrosion resistance, weldability, and longevity

• Precision Manufacturing – Every liner features precision-turned sealing surfaces with surface roughness meeting the highest hygienic standards (Ra < 0.8 µm)

• Comprehensive Size Range – From DN10 to DN100, we offer the full spectrum of sizes to meet your specific requirements

• Multiple Seal Options – We supply O-rings in Viton, NBR, silicone, EPDM, Gylon, and PTFE to suit your specific process media and temperature requirements

• Competitive Pricing – Direct manufacturing capabilities allow us to offer factory-direct pricing without compromising quality