Diaphram seal, clamp connection per DIN 32676, ISO 2852

Type series DL3100

Diaphram seal, clamp connection per DIN 32676, ISO 2852 - DL3100


  • Flush-mounted separating diaphragm of stainless steel, laser welded
  • Volume optimised diaphragm base
  • Clamp connection per DIN 32676 with EHEDG certificate
  • System fillings for different applications
  • Measuring device connection: directly welded, directly screwed, with temperature decoupler, with capillary


  • Material certificate acc. to 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: Flat 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: Clamp connection per:
- ISO 2852
- DIN 32676
Nominal pressure/nominal width: See table
The sealing is not included in the scope of delivery.
Measuring device connection
See order details.
Material stainless steel mat.-no. 1.4301 (304)
System filling
See order details; further upon request.
Further details about pressure transmission fluids see general technical information TA_038.
Hygienic design
The wetted surfaces made of stainless 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.
See data sheet
Installation instructions
For diaphragm seals with clamp design an operation outside the permissible nominal pressure range is only permitted when using suitable clamping rings. Please note DIN 32676 on temperature resistance.
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
DL3100, DL3200, DL3300, DL3400, DL3500, DL3130, DL3230, DL3330, DL3430, DL3500, DL4100, DL4200, DL4300, DL4400, DL4500


  • D5-026

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids