Inline diaphragm seal per DIN 11864, Südmo, Guth

Type series DF6110

Inline diaphragm seal per DIN 11864, Südmo, Guth - DF6110


  • Circular diaphragm of stainless steel, slightly grooved, laser welded
  • Volume optimized diaphragm base
  • DIN 11864-1 und -3 with EHEDG certificate, aseptic connection
  • System fillings for different applications
  • Measuring device connection: directly welded, directly screwed, with temperature decoupler, with capillary


  • Material certificate acc. to DIN EN 10204-3.1
  • Electropolishing (wetted parts)
  • Hygienic design with advanced surface quality
  • Special materials upon request

Technical Data

Constructional design case
Basic body: Volume reduced diaphragm base
Material: stainless steel mat.-no. 1.4404/1.4435 (316L)
Diaphragm: Inline diaphragm
Material wetted parts: Diaphragm: Stainless steel mat.-no. 1.4435 (316L)
Further materials upon request
  Basic body: Stainless steel mat.-no. 1.4404/1.4435 (316L)
Process connection
Design: Aseptic connections per:
- DIN 11864-1, -3
- Südmo
- Guth
Nominal pressure/nominal width: See tables
Further connections upon request. The sealing is not included in the scope of delivery.
Measuring device connection
See order details.
Material stainless steel mat.-no. 1.4301 (304)
Hygienic design
The surface roughness of the wetted parts made of stain-less steel are executed according to EHEDG Doc.8 and ASME BPE SF3.
In case of choosing the additional feature HY, we guarantee the following surface roughness values:
Diaphragm foil: Ra ≤ 0.38 µm
Laser welds: Ra ≤ 0.76 µm
Turned parts: Ra ≤ 0.76 µm
Further versions of hygienic design upon request.
Temperature error
In order to optimise the system we provide a detailed error calculation upon request
System filling
See order details; further fillings upon request.
Further details about pressure transmission fluids see general technical information TA_038.
See table.
Further information about diaphragm seals see general technical information TA_031.
Flame arrester MF21xx for connection of measuring devices to zone 0 see data sheet D6-025.
Type series
DF61050-F4, DF6100-F5, DF6110-F2, DF6120-F2, DF6130-F2, DF6140-F2, DF6150-F2, DF6160-F1, DF6170-F1


  • D5-065

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids