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WIKA · Pressure measurement · Family DELTA-plus

Differential pressure gauge

With integrated working pressure indication (DELTA-plus)
Range
-12.5…1000 kPa
Accuracy
1.6
Protection
IP65
CRNCEEACPAC UkrainePAC RussiaII 2G Ex h IIC T6 ... T1 Gb X
Price
On request
Depends on configuration
Request a quote
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Description

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 overload and static pressure.

Typical markets for these products are the process heating technology, the heating, ventilation and air-conditioning industries, the water/wastewater industry, and machine building and plant construction. For these, the main function of the measuring instruments is the monitoring of filters, compressors and pumps.

Often in these applications, alongside the indication of the differential pressure, the current working pressure is also relevant. A version with integrated working pressure indication is therefore available for the model DPG40. The two easily readable, mechanical on-site displays enable the simultaneous reading of the working and the differential pressure.

Special features

  • Shatterproof window and robust aluminium or stainless steel measuring chamber for increased requirements
  • Low scale ranges from 0 ... 160 mbar
  • High accuracy down to 1.6 %
  • Optionally with approvals for hazardous areas
  • Helium leak tested
Identification
ModelDPG40
Product familyDELTA-plus
SubcategoryDifferential pressure gauge
Measuring range
Pressure ranges0…160 mbar · 0…250 mbar · 0…400 mbar · 0…600 mbar · 0…1000 mbar · 0…0.25 bar · 0…0.4 bar · 0…0.6 bar · 0…1 bar · 0…1.6 bar · 0…2.5 bar · 0…4 bar · 0…6 bar · 0…10 bar · -12.5…12.5 kPa · 0…16 kPa · 0…25 kPa · 0…40 kPa · 0…60 kPa · 0…100 kPa · 0…160 kPa · 0…250 kPa · 0…400 kPa · 0…600 kPa · 0…1000 kPa · 0…0.025 MPa · 0…0.04 MPa · 0…0.06 MPa · 0…0.1 MPa · 0…0.16 MPa · 0…0.25 MPa · 0…0.4 MPa · 0…0.6 MPa · 0…1 MPa
Accuracy
Accuracy class1.6
Accuracy standardEN 837-1
Process conditions
Process connection
2 x G ¼, female thread, centre distance 26 mm2 x G ¼ B, male thread, centre distance 26 mm2 x compression fitting with ferrule for pipe ∅ 6 mm2 x compression fitting with ferrule for pipe ∅ 8 mm2 x compression fitting with ferrule for pipe ∅ 10 mm2xG1/4, female thread, centre distance 26 mm2xG1/4B, male thread, centre distance 26 mm2x compression fitting with ferrule for pipe Ø6 mm2x compression fitting with ferrule for pipe Ø8 mm2x compression fitting with ferrule for pipe Ø10 mm
Process temperature−10…+90 °C
Materials
Case materialAluminium, Stainless steel 1.4571, EN AC-AI Si9Cu3(Fe)
Wetted parts materialStainless steel 1.4571, Copper alloy, Steel, Aluminium, Aluminium, Al Si9Cu3(Fe), Aluminium, AlSi9Cu3(Fe), black painted
Sealing materialFPM/FKM, NBR
Operating environment
Ambient temperature−10…+70 °C
IP ratingIP65
Weight1.3 kg
Certifications and approvals
Certifications
CRNCEEACPAC UkrainePAC Russia
Explosion protection
II 2G Ex h IIC T6 ... T1 Gb XII 2D Ex h IIIC T85 °C T450 °C Db XEx h Gas II 2G Ex h IIC T6 ...T1 Gb XDust II 2D Ex h IIIC T85 °C T450 °C Db XEACATEX directive Hazardous areas - Ex h Gas II 2G Ex h IIC T6...T1 Gb X, Dust II 2D Ex h IIIC T85℃ T450℃ DbX
Additional details
Dial size100 mm
Datasheet languagesEN, DE
Tables from datasheet
Measuring chamber materialWorking pressure indicationEx approval
AluminiumStainless steelWithoutØ 22mm
xxOption
xx-
xxOption
Basic information
Nominal size
Differential pressure displayØ100mm
Working pressure indication■ Without ■ Ø22mm
WindowPlastic, with plug screw for switch point setting
Case versionDisplay case, aluminium, EN AC-AI Si9Cu3(Fe)
→Measuring chamber, see table 'measuring element'
Measuring element
Type of measuring element
Differential pressure displayMeasuring chamber with diaphragm and media chambers⊕and⊖
Working pressure indication■ Without ■ Bourdon tube
Material
Measuring chamber (differential pressure display)■ Aluminium, EN AC-Al Si9Cu3(Fe), black painted ■ Stainless steel 1.4571
Diaphragms, sealings■ FPM/FKM ■ NBR
Bourdon tube (working pressure indication)Copper alloy
Leak tightness of measuring chamberHelium tested, leakage rate: < 5∙10 -3 mbar l/s
Accuracy specifications
Accuracy class
Differential pressure display■ 2.5 ■ 1.6 (only selectable for scale ranges from 0 ... 1 bar to 0 ... 10 bar)
Working pressure indication4
Temperature errorOn deviation from the reference conditions at the measuring system: max. ±0.8 %/10 K of full scale value
Zero point settingExternal, via adjustment screw under the window
Reference conditions
Ambient temperature+20 °C
View all (9)
Scale range mbarpsi
0 ... 1600 ... 5
0 ... 2500 ... 15
0 ... 4000 ... 25
0 ... 6000 ... 40
0 ... 1,0000 ... 60
barkg/cm 2
0 ... 0.250 ... 0.25
0 ... 0.40 ... 0.4
0 ... 0.60 ... 0.6
0 ... 10 ... 1
0 ... 1.60 ... 1.6
0 ... 2.50 ... 2.5
0 ... 40 ... 4
0 ... 60 ... 6
0 ... 100 ... 10
kPaMPa
-12.5 ... +12.50 ... 0.025
0 ... 160 ... 0.04
0 ... 250 ... 0.06
0 ... 400 ... 0.1
0 ... 600 ... 0.16
0 ... 1000 ... 0.25
0 ... 1600 ... 0.4
0 ... 2500 ... 0.6
0 ... 4000 ... 1
0 ... 600
0 ... 1,000
LogoDescriptionCountry
-CRN Safety (e.g. electr. safety,Canada
LogoDescriptionCountry
EU declaration of conformityEuropean Union
Hazardous areas - Ex h Gas II 2G Ex h IIC T6 ...T1 Gb X Dust II 2D Ex h IIIC T85 °C T450 °C Db X EACEurasian Economic Community
Ex Ukraine Hazardous areasUkraine
PAC Russia Metrology, measurement technologyRussia
-PAC Ukraine Metrology, measurement technologyUkraine
Certificates
Certificates■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. indication accuracy)
Recommended recalibration interval1 year (dependent on conditions of use)
ModelDescriptionOrder number
-Panel mounting flange, aluminium14074004
Panel mounting flange, stainless steel14075088
910.17Sealings →See data sheet AC 09.08-
910.15Syphons →See data sheet AC 09.06-
IV3x4-way valve block, stainless steel →For dimensions see page 82043559
4-way valve block, brass →For dimensions see page 82043567
-Compression fittings with ferrule or clamp ring for pipe diameters 6, 8 and10mm 6, 8 and10mmOn request