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 [¾Ð·Â°è]Process Pressure Gauges : 212.25

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212.25

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WIKA

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GERMANY

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Bourdon Tube Pressure Gauges
Hinged Ring Process Gauge
Brass Wetted Parts
Type 212.25


Applications

  • Pressure monitoring panels
  • Suitable for gaseous or liquid media that will not obstruct the pressure system or attack copper alloy parts
  • Process industry: chemical/petrochemical, power stations, mining, on and offshore, environmental technology, mechanical engineering and plant construction

Special features

  • Hinged ring for access to adjustable pointer
  • Durable aluminum case and ring
  • Positive pressure ranges to 1,000 psi

 



Standard Features

 

 

Design
ASME B40.100
Weather protection
Weather resistant (NEMA 3 / IP54)
Sizes
4¨ö¡± & 6¡± (115 & 147 mm) dial size
Pressure connection
Material: copper alloy
Lower back mount (LBM)
1/4¡± or 1/2¡± NPT with M4 internal tap
Accuracy class
¡¾ 0.5% of span (ASME B40.100 Grade 2A)
Bourdon tube
Material: copper alloy
C-type
Ranges
Vacuum / Compound to 200 psi
Pressure from 15 psi to 1,000 psi
or other equivalent units of pressure
or vacuum
Movement
Stainless steel. Internal stop pin at 1.3 x full scale
Working pressure
Steady: full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Dial
White aluminum with black lettering, stop pin at 6 o¡¯clock

Pointer
Black aluminum, adjustable
Operating temperature
Ambient: -40¡ÆF to +140¡ÆF (-40¡ÆC to +60¡Æ C)
Medium: +212¡ÆF (+100¡ÆC) maximum
Case
Black-painted aluminum with 3 threaded mounting bolts.
Solid front, blowout back safety case. 304 stainless steel
blowout back plate
Temperature error
Additional error when temperature changes from reference temperature of 68¡ÆF (20¡ÆC) ¡¾0.4%
for every 18¡ÆF (10¡ÆC) rising or falling.
Percentage of span.
Hinged ring
Black-painted steel with knurled clamping screw




   [¾Ð·Â°è]Process Pressure Gauges : 232.34/233.34

   [¾Ð·Â°è]Process Pressure Gauges : 232.34 NACE/233.34 NACE