KIESELMANN DN26 304/1.4301 DIN 11864-1 DN25 25.4″1.65

Kieselmann DIN 11864-1 Aseptic Pipe Union

Description

This is a high-quality aseptic screwed pipe union from Kieselmann, designed for sterile applications in the food, pharmaceutical, and biotechnology industries. It complies with the DIN 11864-1 standard, ensuring a crevice-free and hygienic connection point. The union consists of two weld-on liners and a union nut, manufactured for durability and process integrity.

Specifications

• Standard: DIN 11864-1, Form A (Screwed Pipe Connection)
• Nominal Size: DN25 / 1 inch
• Tube Dimensions: 25.4 mm OD x 1.65 mm wall thickness
• Material (Wetted Parts): Stainless Steel 316L (1.4404)
• Material (Nut): Stainless Steel 304 (1.4301)
• Connection Type: Butt-weld ends

Label Info

• Brand: KL INOXCO (Kieselmann)
• Lot No: 0000735954
• Heat No: HT:140519011

Application

Ideal for use in aseptic and hygienic process piping systems where easy disconnection for cleaning or maintenance is required, without compromising the sterility of the line.

Country of Origin

Germany

CO2 Impact

Choosing this pre-owned component saves an estimated 0.8 kg of CO2 compared to a new production. This is equivalent to the energy needed to charge a modern smartphone 96 times.

Availability

In stock. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the surface roughness (Ra) of the wetted surfaces?

Standard aseptic fittings like this typically have an internal surface roughness of Ra <= 0.8 micrometers to ensure cleanability and prevent bacterial growth, although this specific part should be measured for verification.

Is a seal/gasket included with this union?

This listing is for the metal union parts only. A compatible gasket, typically made from EPDM, Silicone, or PTFE, must be sourced separately to complete the aseptic seal.

Can this DIN 11864-1 union be connected to a DIN 11851 (dairy coupling) union?

No, DIN 11864-1 (aseptic) and DIN 11851 (hygienic) unions have different thread profiles and sealing principles. They are not directly compatible and should not be interconnected in a process line.

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Friday, March 13, 2026