Din11864 1 2 3
- Model:
- Brand:
- J&O
- Material:
- SS304
- Connection:
- Female
- Working Temperature:
- -20°~120°
- Working Pressure:
- 0-10Bar
- Payment:
- T/T, L/C, Western Union
DIN11864 defines stainless steel aseptic connection systems for hygienic process piping, with Part 1 covering screwed connections, Part 2 flange connections, and Part 3 clamp connections. The DIN11864-1 union nut forms the female side of a screwed aseptic joint and works with the matching male, liner, and gasket to create a controlled sealing interface.
What DIN11864 Means in Process Piping
A DIN11864 connection is designed around cleanable geometry, controlled sealing, and compatible stainless-steel components. For aseptic service, the joint must limit product retention and maintain seal integrity through cleaning and sterilization cycles. O-ring positioning, metal contact surfaces, and orbital welding quality all affect the finished connection.
The listed union nut configuration uses SS304, a female connection, DN11-DN100 sizes, and a maximum working pressure of 10 bar. Its listed working temperature is -20°C to 120°C, while the technical table states 180°C as maximum temperature, so the exact operating limit should be confirmed for the selected assembly.
| Selection factor | What to verify | Why it matters |
|---|---|---|
| Connection form | Screw interface and mating component | Prevents incompatibility |
| Nominal size | Tube or pipe dimensions | Ensures proper fit |
| Seal material | Media, temperature, cleaning cycle | Controls sealing performance |
| Surface condition | Clean, undamaged sealing area | Reduces retention and leakage risk |
| Welding method | Manual or orbital welding suitability | Supports hygienic fabrication |
How the Three DIN Forms Differ
The din 11864 1 form uses a screwed pipe connection and suits fixed aseptic piping where a threaded joint is specified. The din 11864 2 form uses a flange connection, while the din 11864 3 form uses a clamp connection. Selection depends on the mating components already installed in the process line.
Sealing and Maintenance Considerations
A din 11864 1 assembly should be checked for correct alignment before tightening. The gasket must sit correctly, while sealing surfaces should remain free from scratches, particles, and deformation. Excessive tightening can damage the sealing components rather than improve joint performance.
For pharmaceutical, biotechnology, food, and chemical processing, attention to CIP/SIP compatibility, surface roughness, corrosion resistance, and gasket chemistry supports cleanable and stable connections through repeated production cycles.
Technical Data
| Material: | SS304 |
| Max working pressure: | 10Bar |
| Max. Working Temperature: | 180 degree C |
| Availably size: | DN11-DN100 |
| Application: | For Aseptic applications in chemical and pharmaceutical industry. |
Product Parameter
