HYGIENIC Tubus Ø 76 mm with clamping flange, dead-zone free measuring

Type series DL8120

HYGIENIC Tubus Ø 76 mm with clamping flange, dead-zone free measuring - DL8120


  • Flush-mounted separating diaphragm of stainless steel or special material
  • Alternative with reinforced diaphragm in LTC technology (reduced temperature influence)
  • Volume optimized diaphragm base
  • Available with loose and fixed clamping flange
  • 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), alternative Hastelloy C276
Clamping flange: Material: Stainless steel mat.-no. 1.4435 / 1.4404 (316L)
Diaphragm: Flush-mounted diaphragm, laser welded; alternative with reduced temperature influence and reinforced diaphragm in LTC technology.
(LTC=Low Temperature Coefficient)
  Further details see General technical information TA_031.
Material wetted parts: Diaphragm: Stainless steel mat.-no. 1.4435 (316L), alternative Hastelloy C276
Further materials upon request.
  Basic body: Stainless steel mat.-no. 1.4404/1.4435 (316L), alternative Hastelloy C276
Further materials upon request.
System filling
See order details; further fillings upon request.
Further details about pressure transmission fluids see general technical information TA_038.
Process connection
Design: HYGIENIC Tubus Ø 76 mm with
- loose clamping flange
- fixed clamping flange
Nominal pressure: PN 16
Gasket: Material EPDM, FDA listed
Temperature range: -45...150 °C
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 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 .
With measuring device connection G1/2 approx. 0.8 kg
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
DL8120, DL8130


  • D5-024-6

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids