Design for VARIVENT® in-line access unit, EHEDG certified

Type series DL8080

  • EHEDG
Design for VARIVENT® in-line access unit, EHEDG certified - DL8080

Features

  • Flush-mounted separating diaphragm of stainless steel, laser welded
  • Alternative with reinforced diaphragm in LTC technology (reduced temperature influence)
  • Volume optimized diaphragm base
  • EHEDG-certified
  • System fillings for different applications
  • Measuring device connection: directly welded, directly screwed, with temperature decoupler, with capillary

Options

  • 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: 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)
Further materials upon request
  Basic body: Stainless steel mat.-no. 1.4404/1.4435 (316L)
System filling
See order details; further fillings upon request.
Further details about pressure transmission fluids see general technical information TA_038.
Process connection
Design: VARIVENT® connection for VARINLINE®access unit
  - Form B (D = 31)
- Form F (D = 50)
- Form N (D = 68)
Nominal pressure: See table.
Sealing are 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 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 .
Weight
For process connection
Form B (D = 31): ca. 0.3 kg
Form F (D = 50): ca. 0.6 kg
Form N (D = 68): ca. 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
DL8080

Documents

Name
Description
EN
DE
  • D5-024-1

    Data Sheet

  • TA_038

    Technical Information - Pressure Transmission Fluids

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