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WIKA · Pressure measurement · Family 422

Diaphragm pressure gauge

Diaphragm pressure gauge with grey cast iron case, suitable for low pressure ranges and applications in machine building, plant construction, and water and wastewater industry.
Range
0…400 mbar
Accuracy
1.6
Protection
IP54
GOSTMTSCHSBelGIMUkrSEPROUzstandardCPACRNKazInMetr
Price
On request
Depends on configuration
Request a quote
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Description

Diaphragm pressure gauges are preferably used for low pressure ranges. Through the large working surface of the circular, corrugated diaphragm element, small pressure ranges can be measured reliably.

The diaphragm pressure gauges are manufactured in accordance with EN 837-3. The robust design is particularly suitable for applications in machine building, plant construction and in the water and wastewater industry.

The upper measuring flange with case and the lower measuring flange are made from one cast part, respectively.

The instrument is used for the measurement of gaseous and liquid media that will not attack cast steel.

Special features

  • Compatible with switch contacts
  • Threaded or open flange process connection
  • Scale ranges from 0 … 16 mbar
Identification
Model422.12
Product family422
SubcategoryDiaphragm pressure gauge
Measuring range
Pressure ranges0…16 mbar · 0…250 mbar · 0…400 mbar · 0…40 bar
Accuracy
Accuracy class1.6
Accuracy standardEN 837-3
Process conditions
Process connection
G ½ BG ½ B (male)
Process temperature+10…+100 °C
Materials
Case materialGrey cast iron
Wetted parts materialStainless steel 1.4571, NiCr alloy (Inconel), Copper alloy, argentan, stainless steel
Sealing materialNBR
Operating environment
Ambient temperature−20…+60 °C
IP ratingIP54
Weight3.4 kg
Certifications and approvals
Certifications
GOSTMTSCHSBelGIMUkrSEPROUzstandardCPACRNKazInMetr
Additional details
Dial size100 mm
Datasheet languagesEN, DE
Tables from datasheet
LogoDescriptionCountry
GOST (option) Metrology, measurement technologyRussia
KazInMetr (option) Metrology, measurement technologyKazakhstan
-MTSCHS (option) Permission for commissioningKazakhstan
BelGIM (option) Metrology, measurement technologyBelarus
UkrSEPRO (option) Metrology, measurement technologyUkraine
Uzstandard (option) Metrology, measurement technologyUzbekistan
-CPA Metrology, measurement technologyChina
-CRN Safety (e.g. electr. safety, overpressure, ...)Canada
NSScale rangeDimensions inmmWeight
in bardabD₁D₂eGh ±2SWin kg
100≤ 0.2516015.549.51019917.5G½B135273.4
160≤ 0.2516015.549.516115917.5G½B165274.3
100> 0.2510015.549.51019917.5G½B135272.1
160> 0.2510015.549.516115917.5G½B165273.0