Design
Safety pattern (Solidfront) referring to EN 837-1

Nominal size
100 and 160 mm

Measuring range (bar) Overpressure range up to … bar
-1 … 0 3
0 … 0,6 2,5
0 … 1 4
0 … 1,6 6
0 … 2,5 10
0 … 4 16
0 … 6 25
0 … 10 40
0 … 16 60
0 … 25 80
0 … 40 100

 

 

 

 

 

Accuracy class
Measuring range: 1.0
The measuring range end is marked by a triangle

Pressure limitation
Steady: end value of measuring range
Fluctuating: 0.9 x end value of measuring range
Short time: Overpressure range

Permissible temperature
Ambient:
-40 … +60°C without liquid filling
-20 … +60 °C gauges with glycerine filling (Model 233.36 )
Medium:
+200 °C maximum without liquid filling
+100 °C maximum with liquid filling (Model 233.36 )

Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C):
max. ±0.4 % / 10 K of full scale value

Ingress protection
IP 65 per EN 60529/IEC 529

 

Design
ASME B40.100 & EN 837-1

Sizes
2”, 2½” & 4” (50, 63 & 100 mm)

Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1% of span (ASME B40.100 Grade 1A)

Ranges
Vacuum / Compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 15,000 psi (1,000 bar)
Pressure from 15 psi (1 bar) to 10,000 psi (700 bar) – 2” size or other equivalent units of pressure or vacuum

Working pressure
2 & 2½”: Steady: ¾ full-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

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: +140°F (+60°C) maximum

Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F (10°K) rising or falling.

Weather protection
Weather tight (NEMA 4X / IP 66)

Pressure connection
Material: copper alloy
Lower mount (LM) or center back mount (CBM) –
Lower mount (LM) or lo er back mount (LBM) – 4”
⅛” NPT, ¼” NPT or ½” NPT limited to wrench flat area ABS (2” & 2½”) and white aluminum (4”)

 

 

Bourdon tube
2” (50 mm) ≤ 870 psi (60 bar): C-shape copper alloy
2” (50 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) ≤ 870 psi (60 bar): C-shape copper alloy
2½” (63 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) > 6,000 psi (400 bar) : Helical stainless steel
4″ (100 mm) ≤ 1,000 psi (70 bar): C-shape copper alloy
4″ (100 mm) > 1,000 psi (70 bar): Helical stainless steel

Movement
Copper alloy

Dial
White ABS (2” & 2½”) and white aluminum (4”)

Pointer
Black aluminum

Case
304 stainless steel with vent plug and stainless steel crimp ring. Suitable for liquid filling.

Case connection sealed with O-ring, (O-ring material dependent on the case fill):

• 2½”: EPDM O-ring for Glycerine case fill;
  Viton O-ring for Silicone fill
• 4”: EPDM O-ring for Glycerine or Silicone case fill;
  Viton O-ring for Halocarbon or Fluorolube fill

Window
Polycarbonate with Buna-N gasket

Case fill
Glycerine 99.7% – Type 213.53

 

Design
ISO 5171

Nominal size in mm
50

Accuracy class
2.5

Scale range
0 … 2.5 to 0 … 400 bar
or all other equivalent vacuum or combined pressure and vacuum ranges

 

 

Pressure limitation
Steady: 3/4 x full scale value
Fluctuating: 2/3 x full scale value
Short time: Full scale value

Permissible temperature
Ambient: -20 … +60 °C
Medium: +60 °C maximum

Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C):
max. ±0.4 %/10 K of the span

 

The models 612.34, 632.34 and 633.34 are high-quality capsule pressure gauges and have been designed especially for increased safety requirements within the process industry.

The capsule measurement principle is particularly suitable for low pressures. On pressurisation, the expansion of the capsule element, proportional to the incident pressure, is transmitted to the movement and indicated.

 

 

The glass-fibre reinforced POCAN^® case offers the necessary stability for reproducible measurements, even under aggressive ambient conditions.

 

With the model 633.34, a case filling with silicone oil enables use in applications with highly dynamic pressure loads and vibration.

The model 632.50 capsule pressure gauges are completely manufactured from stainless steel and are therefore particularly suited for applications in the process industry. They are based upon the proven capsule measuring system. On pressurisation, the expansion of the capsule element, proportional to the incident pressure, is transmitted to the movement and indicated.

The modular design enables a multitude of combinations of case materials, process connections, nominal sizes and scale ranges. Due to this high variance, the instrument is suitable for use in a wide range of applications within the process industry.

For mounting in control panels, the capsule pressure gauges can, depending on the process connection, be fitted with a mounting flange or with a triangular profile ring and mounting bracket.

The model 633.50 with liquid-filled case is suitable for high dynamic pressure loads and vibrations.

 

Design
DIN 16002

Nominal size in mm
100, 160

Accuracy class
Model 532.52: 1.0
Model 532.53: 1.6
Model 532.54: 2.5
The measurement accuracy is ensured for ambient pressure fluctuations between 955 and 1,065 mbar (min. and max. of atmospheric pressure).

Scale ranges
0 … 25 mbar to 0 … 25 bar absolute pressure

Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value

 

 

Overload safety
Minimum 1 bar absolute pressure (atmospheric pressure), in addition 10 x full scale value, max. 25 bar absolute pressure

Permissible temperature
Ambient: -20 … +60 °C
Medium: +100 °C maximum

Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C):
max. ±0.8 %/10 K of full scale value

Ingress protection
IP54 per IEC/EN 60529

 

These differential pressure gauges are made of highly corrosion-resistant stainless steel. A high overpressure safety is achieved by the all-metal construction and the close-fitting design of the pressure measuring diaphragm.

With its high-grade stainless steel construction and robust design this pressure gauge is geared to chemical and process engineering applications.

 

The wetted parts for these instruments are also available in special materials such as Monel or Hastelloy.

Scale ranges of 0 … 60 mbar bar to 0 … 40 bar [0 … 0.9 to 0 … 580 psi] ensure the measuring ranges required for a wide variety of applications.

 

Design
ASME B40.100 & EN 837-1

Sizes
2”, 2½” & 4” (50, 63 & 100 mm)

Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1% of span (ASME B40.100 Grade 1A)

Ranges
Vacuum / Compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 15,000 psi (1,000 bar)
Pressure from 15 psi (1 bar) to 10,000 psi (700 bar) – 2” size or other equivalent units of pressure or vacuum

Working pressure
2 & 2½”: Steady: ¾ full-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

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: +140°F (+60°C) maximum

Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F (10°K) rising or falling.

Weather protection
Weather tight (NEMA 4X / IP 66)

Pressure connection
Material: copper alloy
Lower mount (LM) or center back mount (CBM) –
Lower mount (LM) or lo er back mount (LBM) – 4”
⅛” NPT, ¼” NPT or ½” NPT limited to wrench flat area ABS (2” & 2½”) and white aluminum (4”)

 

 

Bourdon tube
2” (50 mm) ≤ 870 psi (60 bar): C-shape copper alloy
2” (50 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) ≤ 870 psi (60 bar): C-shape copper alloy
2½” (63 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) > 6,000 psi (400 bar) : Helical stainless steel
4″ (100 mm) ≤ 1,000 psi (70 bar): C-shape copper alloy
4″ (100 mm) > 1,000 psi (70 bar): Helical stainless steel

Movement
Copper alloy

Dial
White ABS (2” & 2½”) and white aluminum (4”)

Pointer
Black aluminum

Case
304 stainless steel with vent plug and stainless steel crimp ring. Suitable for liquid filling.

Case connection sealed with O-ring, (O-ring material dependent on the case fill):

• 2½”: EPDM O-ring for Glycerine case fill;
  Viton O-ring for Silicone fill
• 4”: EPDM O-ring for Glycerine or Silicone case fill;
  Viton O-ring for Halocarbon or Fluorolube fill

Window
Polycarbonate with Buna-N gasket

Case fill
Glycerine 99.7% – Type 213.53

 

Diaphragm pressure gauges measure gauge, absolute and differential pressure. In processing industries, they can be installed in applications with highly corrosive, viscous media.

Diaphragm pressure gauges are ideal for these harsh conditions because the media can clog the narrow presure ports of threaded connections of Bourdon tube instruments as well as the internals of the tube.

To prevent such clogging, diaphragm pressure gauges are connected to the process with an open flange. This configuration provides a large pressure chamber, which prohibts media from settling.

Design
EN 837-3

Sizes
4” & 6” (100 & 160 mm)

Accuracy class
± 2.5% of span

Ranges
Vacuum / Compound to 300 psi (20 bar)
Pressure from 6” H₂O (16 mbar) to 100″ H₂O (250 mbar), 6″ (160 mm) flange diameter
Pressure from 6 psi (400 mbar) to 360 psi (25 bar),
4” (100 mm) flange diameter
or other equivalent units of pressure or vacuum

Working pressure
Steady: full-scale value
Fluctuating: 0.9 x full-scale value

Overpressure safety
5 x full-scale value, not exceeding 600 psi (40 bar)

Operating temperature
Ambient: -4°F to +140°F (-20^oC to +60^oC)
Medium: +212°F (+100^oC) maximum
Storage: -40^o to +158°F (-40^oF to +70^oC)
-4^oF to + 158^oF (-20^oC to +70^oC) for
ranges ≤25 H₂O (60mbar)

Temperature error

Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.8% of span for every 18°F (10°K) rising or falling.

 

 

 

Diaphragm pressure gauges, also called sealgauges, are suitable for low pressure and overpressure conditions.

WIKA’s standard design diaphragm pressure gauges (in stainless steel or Inconel) meet NACE 0175 standards, up to 120° C and are suitable for sour gas applications.

 

Weather protection

Weather resistant (NEMA 3 / IP54) – dry case
Weather tight (NEMA 4X / IP66) – liquid-filled case

Case and upper diaphragm housing
Material: stainless steel
Case with pressure relief disc and stainless steel bayonet ring

Pressure connection and lower diaphragm housing
Material: 316L SS
Lower mount (LM)
½” NPT female

Diaphragm element
≤ 100” H₂O (250 mbar): 316 SS with PTFE lining
> 100” H₂O (250 mbar): Inconel^® (NiCr-alloy) with PTFE lining
All ranges with FPM (Viton) sealing gasket

Movement
Material: stainless steel

Dial
White aluminum with black lettering

Pointer
Black aluminum, adjustable – Type 432.50
Black aluminum, non-adjustable – Type 433.50

Window
Laminated safety glass with Buna-N gasket

Case fill
Standard dry
Glycerine 86.5% – Type 433.50

 

The hydraulic pressure gauge model 113.13 is a liquid-filled mechanical pressure gauge with plastic case.

The liquid filling causes damping of the internal components and contributes to an increased vibration resistance and shock resistance.

The hydraulic pressure gauges are suitable for installation in machines and plants where vibrations and shocks are expected.

These hydraulic gauges are based on the proven Bourdon tube measuring system. The deflection of the Bourdon tube is transmitted to a movement and indicated.

 

 

The plastic case and the window are welded together and an O-ring seal seals the process connection at the case. In this way the instrument fulfils the high requirements for IP65 ingress protection.

With accuracy class 2.5 and the available nominal sizes 40, 50 and 63, this model is suited for a wide range of applications in industry. The mounting bracket, which is available as an option, enables the panel mounting of pressure gauges with back mount process connection. The nominal size 63 mm version with back mount process connection is alternatively offered with a mounting flange on the front of the instrument. This mounting flange is used, when, for example, panel mounting is only possible from the front.