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232.50 1
232.50
In stock at WIKA
WIKA · Pressure measurement · Family 232

Bourdon tube pressure gauge, stainless steel

For the process industry, standard version, NS 63 [2 ½"], 100 [4"] and 160 [6"]
Range
-1…1600 bar
Accuracy
1.0
Protection
IP65
CECRNEACDNVKBAMChS
Price
From €94
Confirm at order time
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Description

This high-quality Bourdon tube pressure gauge has been designed especially for the process industry.

The use of high-quality stainless steel materials and the robust design are geared to applications in the chemical and process engineering industries. Thus the instrument is suitable for liquid and gaseous media, also in aggressive environments.

Scale ranges of 0 … 0.6 to 0 … 1,600 bar [0 ... 10 to 0 ... 20,000 psi] ensure the measuring ranges required for a wide variety of applications.

For further approvals, see page 6

Bourdon tube pressure gauge, model 232.50, NS 100 [4 " ]

WIKA manufactures and qualifies the pressure gauge in accordance with the standards EN 837-1 and ASME B40.100. As a safety function, this instrument has a blow-out device with blow-out plug on the back of the case. In the event of a failure, overpressure can escape there.

The model 233.50 with liquid-filled case is suitable for high dynamic pressure loads and vibrations.

The QR code on the dial allows instrument-specific information such as the serial number, the order number, certificates and other product data to be retrieved from the internet easily and in the long term.

Special features

  • Excellent load cycle stability and shock resistance
  • With case filling (model 233.50) for applications with high dynamic pressure loads and vibrations
  • Completely from stainless steel
  • Scale ranges from 0 ... 0.6 to 0 ... 1,600 bar or 0 ... 10 to 0 ... 20,000 psi
  • QR code on dial links to instrument-specific information
Identification
Model232.50
Product family232
SubcategoryMechanical pressure gauge
Measuring range
Pressure ranges0…0.6 bar · 0…1600 bar · 0…10 psi · 0…20000 psi · 0…0.06 MPa · 0…1.6 MPa · 0…60 kPa · 0…1 bar · 0…1.6 bar · 0…2.5 bar · 0…4 bar · 0…6 bar · 0…10 bar · 0…16 bar · 0…25 bar · 0…60 psi · 0…100 psi · 0…160 psi · 0…400 psi · 0…600 psi · 0…160000 kPa · 0…1 kg/cm2 · 0…60 kg/cm2 · 0…100 kPa · 0…160 kPa · 0…250 kPa · 0…400 kPa · 0…600 kPa · 0…1000 kPa · 0…1600 kPa · 0…2500 kPa · 0…15 psi · 0…30 psi · 0…200 psi · 0…300 psi · 0…800 psi · 0…0.1 MPa · 0…0.16 MPa · 0…0.25 MPa · 0…0.4 MPa · 0…0.6 MPa · 0…1 MPa · 0…2.5 MPa · 0…40 psi · 0…1000 psi · 0…60 bar · 0…4000 psi · 0…100 bar · 0…6000 psi · 0…160 bar · 0…10000 psi · 0…250 bar · 0…400 bar · 0…600 bar · 0…1000 bar · -0.6…0 bar · -1…5 bar · -1…0 bar · -1…9 bar · -1…0.6 bar · -1…15 bar · -1…1.5 bar · -1…24 bar · -1…3 bar · -30…0 inHg · -30…100 inHg · -30…15 inHg · -30…160 inHg · -30…30 inHg · -30…200 inHg · -30…60 inHg · -30…300 inHg · 0…4 MPa · 0…6 MPa · 0…10 MPa · 0…16 MPa · 0…25 MPa · 0…40 MPa · 0…60 MPa · 0…100 MPa · 0…160 MPa · 0…100 kg/cm2 · 0…160 kg/cm2 · 0…250 kg/cm2 · 0…400 kg/cm2 · 0…600 kg/cm2 · 0…1000 kg/cm2 · 0…1600 kg/cm2
Accuracy
Accuracy class1.0
Accuracy standardEN 837-1
Process conditions
Process connection
M12 x 1.5M20 x 1.5G ⅛ BG ¼ BG ½ BR ¼R ½¼ NPT½ NPTG⅛B, male threadG¼B, male threadG½B, male threadM12 x 1.5, male threadM20 x 1.5, male threadR ¼, male threadR ½, male thread¼NPT, male thread½NPT, male threadG 1/8 BG 1/4 BG 1/2 BR 1/4R 1/21/4 NPT1/2 NPT
Process temperature−40…+200 °C
Materials
Case materialStainless steel 1.4301 (304), Stainless steel 1.4571 (316Ti)
Wetted parts materialStainless steel 1.4404 (316L)
Sealing materialLaminated safety glass, Polycarbonate
Operating environment
Ambient temperature−40…+60 °C
IP ratingIP65
Weight0.6 kg
Certifications and approvals
Certifications
CECRNEACDNVKBAMChS
Explosion protection
ATEX: II 2G Ex h IIC T6...T1 Gb XATEX: Dust II 2D Ex h IIIC T85°C...T450°C Db XEx h Gas II 2G Ex h IIC T6 ... T1 Gb XDust II 2D Ex h IIC T85°C ... T450°C Db X
Additional details
Dial size100 mm
Datasheet languagesEN
Tables from datasheet
Basic information
Standard■ EN 837-1 ■ ASME B40.100
For information on the 'Selection, installation, handling and operation of pressure gauges', see technical information IN 00.05.
Further version■ Oil- and grease-free for oxygen ■ Per NACE 1) MR0175 / ISO 15156, use in H₂S-containing environments in oil and gas production ■ With pre-volume deflagration flame arrester 2) for mounting to zone 0 (EPL Ga); model 910.21; see data sheet AC 91.02 ■ Monel version; models 262 and 263; see data sheet PM02.33
Nominal size (NS)■ Ø63 mm[2 ½"] ■ Ø100 mm[4"] ■ Ø160 mm[6"]
Connection location■ Lower mount (radial) ■ Lower back mount ■ Centre back mount (only for NS 63 [2 ½"])
WindowLaminated safety glass (NS 63 [2 ½"]: Polycarbonate)
Case
DesignSafety level 'S1' per EN 837-1 With blow-out device at case circumference, 12 o'clock (NS 63 [2 ½"]) and on the back of the case (NS 100 [4"] and 160 [6"]) Scale ranges ≤ 0 ... 16 bar [≤ 0 ... 300 psi] with compensating valve to vent and reseal case
Material■ Stainless steel 1.4301 (304) ■ Stainless steel 1.4571 (316Ti)
RingBayonet ring, stainless steel
Mounting■ Without ■ Panel mounting flange, stainless steel ■ Panel mounting flange, polished stainless steel ■ Triangular profile ring with mounting bracket, polished stainless steel ■ Surface mounting flange, stainless steel
Case filling (model 233.50)■ Without ■ Glycerine ■ Glycerine-water mixture for NS 100 [4"] and 160 [6"] with scale range ≤ 0 ... 2.5 bar [≤ 0 ... 40 psi] or for NS 63 [2 ½"] with scale range ≤ 0 ... 4 bar [≤ 0 ... 60 psi] ■ Silicone oil
Movement■ Stainless steel ■ Stainless steel 1.4404 (316L) ■ everlast ® version
Measuring element
Type of measuring elementBourdon tube, C-type or helical type
MaterialStainless steel 1.4404 (316L)
Leak tightness■ Helium tested, leakage rate: < 5∙10 -3 mbar l/s ■ Helium tested, leakage rate: < 1∙10 -6 mbar l/s
Accuracy specifications
Accuracy class
NS 63 [2 ½"]■ EN 837-1Class 1.6
■ ASME B40.100±2 %│±1%│±2%ofmeasuring span (grade A)
NS 100 [4"], 160 [6"]■ EN 837-1Class 1.0
■ ASME B40.100±1 %of measuring span (grade 1A)
Temperature errorOn deviation from the reference conditions at the measuring system: ≤ ±0.4 %per 10 °C [≤ ±0.4 %per 18 °F] of full scale value
Reference conditions
Ambient temperature+20 °C [+68 °F]
bar
0 ... 0.6 1)0 ... 40
0 ... 10 ... 60
0 ... 1.60 ... 100
0 ... 2.50 ... 160
0 ... 40 ... 250
0 ... 60 ... 400
0 ... 100 ... 600
0 ... 160 ... 1,000
0 ... 250 ... 1,600
View all (20)
kPa
0 ... 60 1)0 ... 4,000
0 ... 1000 ... 6,000
0 ... 1600 ... 10,000
0 ... 2500 ... 16,000
0 ... 4000 ... 25,000
0 ... 6000 ... 40,000
0 ... 1,0000 ... 60,000
0 ... 1,6000 ... 100,000
0 ... 2,5000 ... 160,000
psi
0 ... 10 1)0 ... 1,000
0 ... 150 ... 1,500
0 ... 300 ... 2,000
0 ... 600 ... 3,000
0 ... 1000 ... 4,000
0 ... 1600 ... 5,000
0 ... 2000 ... 6,000
0 ... 3000 ... 7,500
0 ... 4000 ... 10,000
0 ... 6000 ... 15,000
0 ... 8000 ... 20,000
kg/cm 2
0 ... 0.6 1)0 ... 40
0 ... 10 ... 60
0 ... 1.60 ... 100
0 ... 2.50 ... 160
0 ... 40 ... 250
0 ... 60 ... 400
0 ... 100 ... 600
0 ... 160 ... 1,000
0 ... 250 ... 1,600
MPa
0 ... 0.06 1)0 ... 4
0 ... 0.10 ... 6
0 ... 0.160 ... 10
0 ... 0.250 ... 16
0 ... 0.40 ... 25
0 ... 0.60 ... 40
0 ... 10 ... 60
0 ... 1.60 ... 100
0 ... 2.50 ... 160
bar
-0.6 ... 0 1)-1 ...+5
-1 ... 0-1 ...+9
-1 ... +0.6-1 ...+15
-1 ... +1.5-1 ...+24
-1 ...+3-
kPa
-60 ... 0 1)-100 ...+500
-100 ... 0-100 ...+900
-100 ...+60-100 ... +1,500
-100 ...+150-100 ... +2,400
-100 ...+300-
Further details on: scale ranges
Special scale rangesOther scale ranges on request
Unit■ bar ■ psi ■ kg/cm² ■ kPa ■ MPa
Increased overload safety■ Without ■ 2 times ■ 3 times ■ 4 times ■ 5 times
Vacuum resistance■ Without ■ Vacuum-resistant to -1 bar
Dial
Scale colourBlack
MaterialAluminium
Special scale■ Without ■ With temperature scale for refrigerant, e.g. for NH 3 :R 717
Other scales or customer-specific dials, e.g. with red mark, circular arcs or circular sectors, on request
Pointer
Instrument pointerAluminium, black
Mark pointer/drag pointer■ Without ■ Red mark pointer on dial, fixed ■ Red mark pointer on window, adjustable ■ Mark pointer on bayonet ring, adjustable ■ Red drag pointer on window, adjustable
Pointer stop pin■ Without ■ At zero point (only for NS 63 [2 ½"]) ■ At 6 o&#x27;clock (only for NS 100 [4"], 160 [6"])
MPa
-0.06 ... 0 1)-0.1 ... +0.5
-0.1 ... 0-0.1 ... +0.9
-0.1 ... +0.06-0.1 ... +1.5
-0.1 ... +0.15-0.1 ... +2.4
-0.1 ... +0.3-
psi
-30 inHg ... 0-30 inHg ...+100
-30 inHg ...+15-30 inHg ...+160
-30 inHg ...+30-30 inHg ...+200
-30 inHg ...+60-30 inHg ...+300
Process connection
Standard■ EN 837-1 ■ ISO 7 ■ ANSI/B1.20.1
Size
EN 837-1■ G⅛B,male thread ■ G¼B,male thread ■ G½B,male thread ■ M12 x 1.5, male thread ■ M20 x 1.5, male thread
ISO 7■ R ¼, male thread ■ R ½, male thread
ANSI/B1.20.1■ ¼NPT, male thread ■ ½NPT, male thread
Restrictor■ Without ■ ∅0.6 mm[0.024"], stainless steel ■ ∅0.3 mm[0.012"], stainless steel
Material (wetted)
Process connectionStainless steel 1.4404 (316L)
Bourdon tubeStainless steel 1.4404 (316L)
Operating conditions
Medium temperature
Unfilled instruments-40 ...+200 °C [-40 ...+392 °F]
Instruments with glycerine filling-20 ...+100 °C [-4 ...+212 °F]
Instruments with silicone oil filling-40 ...+100 °C [-40 ...+212 °F]
Ambient temperature
Unfilled instruments or with silicone oil filling-40 ...+60 °C [-40 ...+140 °F]
Instruments with glycerine filling-20 ...+60 °C [-4 ...+140 °F]
Pressure limitation
NS 63 [2 ½"]Steady3/4 x full scale value
Fluctuating2/3 x full scale value
Short timeFull scale value
NS 100 [4"], 160 [6"]SteadyFull scale value
Fluctuating0.9 x full scale value
Short time1.3 x full scale value
Ingress protection per IEC/EN 60529■ IP65
LogoDescriptionRegion
EU declaration of conformity Pressure equipment directive PS > 200 bar, module A, pressure accessoryEuropean Union
-CRN Safety (e.g. electr. safety, overpressure, ...) For full scale value ≤ 1,000 barCanada
LogoDescriptionRegion
EU declaration of conformity ATEX directive Hazardous areas - Ex h Gas II 2G Ex h IIC T6 ...T1 Gb X Dust II 2D Ex h IIIC T85°C ...T450°C Db XEuropean Union
EAC Hazardous areasEurasian Economic Community
Ex Ukraine Hazardous areasUkraine
PAC Kazakhstan Metrology, measurement technologyKazakhstan
-MChS Permission for commissioningKazakhstan
-PAC Ukraine Metrology, measurement technologyUkraine
PAC Uzbekistan Metrology, measurement technologyUzbekistan
-PAC China Metrology, measurement technologyChina
DNV Ships, shipbuilding (e.g. offshore)International
-KBA 1) AutomotiveInternational
Hydrogen-powered motor vehicles - (EC) no. 79/2009 and (EU) no. 406/2010
Components for motor vehicles using natural gas (CNG/LNG) - UN no.R 110
LogoDescription
-Pressure Equipment Directive (PED) for maximum allowable pressure PS ≤ 200 bar
-Suitability for oxygen applications
-Suitability of wetted materials for drinking water in accordance with the European 4MS initiative
-Suitability of wetted materials for contact with food in accordance with European regulation (EC) no. 1935/2004
-Suitability of wetted materials for hydrogen
-Wetted materials free from substances of animal origin (ADI-free and therefore TSE/BSE-free)
Certificates
Certificates■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal parts, indication accuracy) ■ PCA calibration certificate, traceable and accredited in accordance with ISO/IEC 17025 ■ Calibration certificate by a national accreditation body, traceable and accredit - ed in accordance with ISO/IEC 17025 on request
Recommended calibration interval1 year (dependent on conditions of use)
Patent numberDescription
US Design D1051747S, CPC CN 01677074, DE Design 402022100171, EU Design 402022100171, IR Design DM/222416, EU 3D trademark 018659564Design patentWIKA blue identity