HYGIENIC Tubus Ø 101 mm with clamp connection, dead-zone free measuring

Type series DL8140

HYGIENIC Tubus Ø 101 mm with clamp connection, dead-zone free measuring - DL8140


  • Flush-mounted separating diaphragm of stainless steel, laser welded
  • With reinforced diaphragm in LTC technology (reduced temperature influence)
  • Volume optimized diaphragm base
  • 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: Flush-mounted diaphragm, laser welded; with reduced temperature influence and reinforced diaphragm in LTC technology. (LTC=Low Temperature Coefficient, fur-ther details see General technical infor-mation TA_031).
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: HYGIENIC Tubus: Ø 101 mm
Diaphragm surface: Ø 85 mm
Nominal pressure: PN 10
Gasket: - Material EPDM, FDA compliant, Temperature range: -45...150 °C
- Material FKM O-ring (Viton), Temperature range: -40...200 °C
Measuring device connection
See order details.
Material stainless steel mat.-no. 1.4301 (304)
System filling
See order details; further fillings upon request.
Further details about pressure transmission fluids see general technical information TA_038.
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.
With measuring device connection G1/2 approx. 4.5 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


  • D5-024-61

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids