Inline diaphragm seal, flange connection, self-draining, per EN and ASME

Type series DP4100

Inline diaphragm seal, flange connection, self-draining, per EN and ASME - DP4100


  • Suited for measuring aggressive, highly viscous media and for high process temperature
  • Circular diaphragm of stainless steel, slightly grooved, laser welded
  • Volume optimized diaphragm base
  • Self-draining
  • System fillings for different applications
  • Measuring device connection: directly welded, with capillary


  • Material certificate acc. to DIN EN 10204-3.1
  • 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: See order details
  Basic body: Stainless steel mat.-no. 1.4404/1.4435 (316L)
Process connection
Design: Flange connection per EN 1092-1 and ASME B16.5
Further designs upon request.
Nominal pressure/Nominal width: See table
The sealing is not included in the scope of delivery.
Sealing surfaces
- EN 1092-1, model B1, B2, C, D
- ASME B 16.5, RFSF, RF 125-250AA, RJF
With special material surface upon request.
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.
Temperature error
In order to optimise the system we provide a detailed error calculation upon request .
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
DP4100, DP4102


  • D5-069

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids

  • KE_002

    Declaration of Conformity