Differential pressure gauge NS 100/ 160, with diaphragm, overload protection

Type series BD3200/BD3300

  • EX
Differential pressure gauge NS 100/ 160, with diaphragm, overload protection - BD3200/BD3300


  • Differential pressure gauge with diaphragm
  • Nominal ranges 0…1 to 0…25 bar
  • High quality case with bajonet ring NS 100/160
  • Case and measuring flange of stainless steel, diaphragm of Duratherm
  • Accuracy class 1.6 as per EN 837-3
  • Working pressure up to 500 bar
  • Plus- and minus sides up to max. workingpressure
  • Degree of protection IP 65
  • EAC declaration (upon request)


  • Explosion protection (ATEX) for mechanical devices
  • Certificate of measuring equipment for Russian Federation
  • Material certificate per EN 10204
  • Calibration certificate per EN 10204
  • Case with liquid filling
  • Electrical contact device, see data sheet D3-035
  • Extended temperature range
  • Connection to Zone 0
  • 3-way valve block

Technical Data

Constructional design / case
Design: High quality case with bayonet ring, material: st. steel mat.-no. 1.4301 (304)
ventilation valve, material: PUR
Nominal size: NS 100 or NS 160
Degree of protection per EN 60529: - Without case filling: IP 65
- With case filling: IP 66
Case filling: Glycerine-water. Further filling liquids upon request.
Case seal: Material gasket: NBR
Pressure chamber seal: Material: NBR, optional PTFE.
Further materials upon request.
Window: Non-splintering laminated glass.
Option: Non-splintering plastic (Macrolon)
Measuring element: Diaphragm
Movement: Stainless steel segment
Scale: Pure aluminium, white with black inscription
Optional with red marking or with fixed reference pointer. Spezial scale upon request
Pointer: Pure aluminium, black, with knife edge pointer with micro adjustment for zero point correction
Mounting: sturdy device holder
Weights: Without filling:
  - Radial or axial connection approx. 14 kg
- Valve block design approx. 17 kg
- Diaphragm seal design approx. 22 kg
Process connection
Design: - G1/2 B axial, option: G3/8 screw-in thread, adaption per EN 61518, arranged vertically to measuring flange.
  - Valve block mounting per EN 61518 possible.
  - Diaphragm seal fitting with capillary.
Material wetted parts
Measuring element: Diaphragm: Duratherm (similar resistance as mat.-no. 1.4571 (316Ti))
  Measuring flange: stainless steel mat.-no. 1.4571 (316TI)
Nominal range
See order details, further ranges upon request
Overload protection Plus and minus sides up to max. working pressure. Other designs upon request.
Accuracy class: 1.6 per EN 837-3
Temperature influence: Max. ± 0.8% / 10K of measuring span per EN 837-3.
Working pressure: 250 bar, 400 bar, 500 bar
Influence working pressure: 2 x 10 -5 % of measuring range
Temperature ranges
  without filling with filling
Ambient: -20…50 °C -20…50 °C
Media: -20…100 °C -20…100 °C
Storage: -40…70 °C -40…70 °C
Tests and certificates
See documents
Type series
BD3200, BD3240, BD3300, BD3340


  • D2-045

    Data Sheet

  • BA_008

    Operating Instruction

  • XA_005

    Ex Instructions

  • KE_009

    Declaration of Conformity