Bourdon Tube Pressure Gauges
Stainless Steel Series
Type 232.53 - Dry Case
Type 233.53 - Liquid-filled Case
Applications
With liquid filled case for applications with high dynamic
pressure pulsations or vibration
Suitable for corrosive environments and gaseous or
liquid media that will not obstruct the pressure system
Process industry: chemical/petrochemical, power
stations, mining, on and offshore, environmental technology, mechanical engineering and plant construction
Special features
Excellent load-cycle stability and shock resistance
All stainless steel construction
Positive pressure ranges to 15,000 psi
Mechanical
Pressure Measurement
WIKA Datasheet 23X.53
Standard Features
Design
ASME B40.100 & EN 837-1
Sizes
2”, 2½” & 4” (50, 63 and 100 mm)
Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1.0% of span (ASME B40.100 Grade 1A)
Ranges
Vacuum / compound to 200 psi
Pressure from 15 psi to 15,000 psi
or other equivalent units of pressure or vacuum
Working pressure
2” & 2½”: Steady: 3/4 scale value
Fluctuating: 2/3 full scale value
Short time: full scale value
4 ”: Steady: full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Bourdon Tube Pressure Gauge Model 232.53
Temperature error
Additional error when temperature changes from reference
temperature of 68°F (20°C) ±0.4% for every 18°F (10°C) rising
or falling. Percentage of span.
Weather protection
Weather tight (NEMA 4X / IP65)
Pressure connection
Material: 316L stainless steel
Lower mount (LM) or center back mount (CBM)
Lower back mount (LBM) for 4” size
1/8” NPT, 1/4” NPT or 1/2” NPT limited to wrench flat area
Bourdon tube
Material: 316L stainless steel
2” & 2½”:
4”:
Movement
Stainless steel
1,000 PSI: C-type,
1,500 PSI: helical type
1,500 PSI: C-type,
2,000 PSI: helical type
Operating temperature
Ambient: -40°F to +140°F (-40°C to +60°C) - dry
-4°F to +140°F (-20°C to +60°C) - glycerine filled
-40°F to +140°F (-40°C to +60°C) - silicone filled
Medium: +212°F (+100°C) maximum
WIKA Datasheet 23X.53 · 05/2009
Dial
White aluminum with black lettering, 2” and 2½” with stop pin
Page 1 of 2
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Pointer
Black aluminum
Case
304 stainless steel with vent plug and SS crimp ring
Welded case / socket connection
Window
Polycarbonate
Liquid filling
Glycerine 99.7% - Type 233.53
Dimensions
Optional extras
SS restrictor
SS front flange
SS rear flange (2½” and 4” only)
Zinc-plated steel or SS u-clamp bracket
(field installable - see note)
Cleaned for oxygen service
Red drag pointer or mark pointer (2½” and 4” only)
External zero adjustment (4” size only)
Other pressure connections
Silicone or Fluorolube case filling
Other pressure scales available:
bar, kPa, MPa, kg/cm² and dual scales
Note: U-clamp bracket for 2” must be ordered with gauge
Size
A B C D E G H J M N S T W Weight
2” mm 55 48 30 50 12 53 - 3.6 71 60 5.5 14 0.27 lb. dry
in 2.17 1.89 1.18 1.97 0.47 2.09 - 0.14 2.80 2.36 0.22 1/4” 0.55 0.33 lb. filled
2.5” mm 69 54 32 62 13 54 - 3.6 88.1 75 6.5 14 0.36 lb. dry
in 2.69 2.13 1.26 2.45 0.51 2.13 - 0.14 3.47 2.95 0.26 1/4” 0.55 0.44 lb. filled
4” mm 107 87 48 100 15.5 79.5 30 4.8 132 116 8 22 1.10 lb. dry
in 4.21 3.43 1.89 3.91 0.61 3.13 1.18 0.19 5.20 4.57 0.31 1/2” 0.87 1.76 lb. filled
Recommended panel cutout is dimension D + 1 mm
WIKA Datasheet 23X.53 · 05/2009Page 2 of 2
Ordering information
Pressure gauge model / Nominal size / Scale range / Size of connection / Optional extras required
Specifications and dimensions given in this leaflet represent the state of engineering at the time of printing.
Modifications may take place and materials specified may be replaced by others without prior notice.
WIKA Instrument Corporation
1000 Wiegand Boulevard
Lawrenceville, GA 30043
Tel (770) 513-8200 Toll-free 1-888-WIKA-USA
Fax (770) 338-5118
E-Mail info@wika.com
www.wika.com
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