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Dairy coupling welding part MMS

Welding part type MMS for dairy couplings to DIN 11851. The part consists of a welding liner and a swivelling union nut with female round thread (DIN 405-1). The liner is welded to the pipe, and the union nut is screwed onto a part with male thread, such as a VMS part. The welding part is made of stainless steel 1.4301 and is available for pipes with outer Ø 29 to 104 mm.

Download datasheet (PDF)

DIN 11851 Stainless steel 1.4301 Pipe Ø 29 to 104 mm
  • Stainless steel
  • DIN 11851

Technical specifications

The product's key specifications are briefly summarised below.

Type Welding liner with union nut
Material Stainless steel 1.4301
Thread Dairy round thread to DIN 405-1, female
Standard DIN 11851
Manufacturer SKU 5545

Dimensions and ordering

The table shows the standard sizes of the welding part.

Dimensions and article numbers for Dairy coupling welding part MMS
Inner Ø
[mm]
Outer Ø
[mm]
Thread Weight
[kg/pc.]
Article no.
2629Rd 52 x 1/6"0.2545545025000
3235Rd 58 x 1/6"0.3045545032000
3841Rd 65 x 1/6"0.3625545038000
5053Rd 78 x 1/6"0.4985545050000
6670Rd 95 x 1/6"0.835545063000
8185Rd 110 x 1/4"1.0695545075000
100104Rd 130 x 1/4"1.55545100000

Inner and outer Ø are the dimensions of the welding liner. The thread is dairy round thread (Rd) to DIN 405-1, given as outer diameter in mm and pitch in inches. Weight is per piece.

Frequently asked questions

Which size should I choose?

Choose by the pipe's outer diameter and wall thickness. The inner and outer Ø of the welding liner are given in the table.