Wika Diaphragm pressure gauge Industrial grey cast iron wika 422.12 423.12

Wika Diaphragm pressure gauge Industrial grey cast iron wika 422.12 423.12

Applications

■■ For measuring points with increased overpressure

■■ With liquid-filled case for applications with high dynamic pressure loads or vibrations 1)

■■ For gaseous and liquid media, with the open connecting flange option also for particulates-containing and viscous media

■■ For mining, environmental technology, machine building and general plant construction

Special features

■■ Compatible with switch contacts

■■ Process connection thread or open flange

■■ Scale ranges from 0 … 16 mbar

Description

Design

EN 837-3

Nominal size in mm

100, 160

Accuracy class

Model 422.12: 1.6

Model 423.12: 2.5 (option 1.6)

Scale ranges

0 ... 16 mbar to 0 ... 250 mbar (flange Ø 160 mm)

0 ... 400 mbar to 0 ... 40 bar (flange Ø 100 mm)

or all other equivalent vacuum or combined pressure and

vacuum ranges

Pressure limitation

Steady: full scale value

Fluctuating: 0.9 x full scale value