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Model DPG40 Differential Pressure Gauge

Brand: WIKA Alexander Wiegand SE & Co. KG
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The differential pressure gauges of the DELTA-line product family are primarily used for the monitoring of low differential pressures where there are high requirements in terms of one-sided overpressure and static pressure.
Features
  • Robust Aluminum case with shatterproof window.
  • Low measuring range from 0 ... 160 mbar.
  • High accuracy up to 1.6 %.
  • Optionally with approvals for hazardous areas.

Specifications

Brand

Nominal Size

  • Differential Pressure indication: Ø 100 mm
  • Working Pressure indication: Ø 22 mm (Not available for ATEX versions)

Accuracy

  • Working Pressure Indication: ≤ 4 % of Span
  • Differential Pressure Indication: ≤ 2.5 % of Span (Option ≤ 1.6 %)

Scale Ranges (EN 837)

  • Differential Pressure: 0 ... 0.16 to 0 ... 10 bar

Maximum Working Pressure (Stat.)

  • 25 bar

Overpressure Safety

  • Either side Max. 25 bar

Permissible Temperature

  • Storage: -40° to +70° C
  • Medium: -10° to +90° C
  • Ambient: -10° to +70° C (At ATEX: -10° to +60° C)

Ingress Protection

  • IP65 per IEC/EN 60529

Marking Per ATEX (Option)

  • II 2D c T85° C/T100° C/T135° C X
  • II 2G c IIC T4/T5/T6 X

Media Chamber (Wetted)

  • Aluminium, EN AC-Al Si9Cu3(Fe), Black Lacquered (Option: Stainless Steel 1.4571)

Process Connections (Wetted)

  • 2 x G 1/4 Female, Lower Mount (LM), In-Line, centre distance 26 mm

Pressure Elements (Wetted)

  • Working Pressure: Bourdon Tube from Cu-Alloy
  • Differential Pressure: Compression springs from Stainless Steel 1.4310 and separating Diaphragm from FPM/FKM (Option: NBR)

Transmission Parts (Wetted)

  • Stainless Steel 1.4301, 1.4305, 1.4310, FPM/FKM (Option: NBR)

Sealings (Wetted)

  • FPM/FKM (Option: NBR)

Movement

  • Copper Alloy

Dial

  • Differential and working Pressure indication: White dial, Black Lettering

Pointer

  • Differential and working Pressure indication: Blue Pointer

Zero Adjustment for Differential Pressure Indication

  • Via Screw in the dial

Case

  • Aluminium, EN AC-Al Si9Cu3(Fe), Black Lacquered

Window

  • Plastic, with plug Screw for zero Point Adjustment

Weight

  • Approximately 1.3 kg

  • Marine boilers, pressure vessels, bilge-water collection
  • Drinking and cooling-water treatment plants
  • Pressure-boosting stations
  • Heating technology
  • Fire-extinguishing systems

Documentation

Data Sheets

Operating Instructions

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