- High reliability and long service life
- Up to 4 switch contacts per instrument
- Instruments with electronic contacts for PLC applications
- Contact gauges comply with DIN 16085
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- Safety version with solid baffle wall designed in compliance with the requirements and test conditions of EN 837-1
- Excellent load-cycle stability and shock resistance
- Completely from stainless steel
- Scale ranges from 0 … 0.6 to 0 … 1,600 bar
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- Excellent load-cycle stability and shock resistance
- All stainless steel construction
- German Lloyd approva
- Scale ranges up to 0 … 1,600 bar
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- Overpressure range is indicated completely on scale
- Safety version with solid baffle wall (Solidfront) designed in compliance with the requirements of EN 837-1 and ASME B40.100
- With case filling (model 233.36) for applications with high dynamic pressure loads and vibrations
- Measuring ranges from 0 … 0.6 bis 0 … 40 bar [0 ... 10 to 0 ...600 psi]
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- With case filling (model 263) for applications with high dynamic pressure loads and vibrations
- Models 262.30 and 263.30: safety version with solid baffle wall (Solidfront) designed in accordance with the requirements of EN 837-1 and ASME B40.100
- Suitability for particularly aggressive media, due to very high corrosion resistance
- EMICOgauge version, to avoid fugitive emissions
- QR code on dial links to instrument-specific information
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- Excellent load-cycle stability and shock resistance
- Safety version with solid baffle wall designed in compliance with the requirements and test conditions of ASME B 40.100
- With case filling (model 233.34) for applications with high dynamic pressure loads and vibrations
- Scale ranges from 0 … 10 to 0 … 30,000 psi [0 ... 0.6 to 0 ... 2,000 bar]
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- POLARgauge® - special instrument design for extremely low ambient temperatures down to -70 °C [-94 °F]
- Ingress protection IP66 and IP67
- Completely from stainless steel
- Measuring ranges from 0 ... 0.6 to 0 ... 1,000 bar [0 ... 10 to 0 ... 15,000 psi]
- Case also available in safety level “S3” per EN 837-1
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- Safety pressure gauge with solid baffle wall designed in compliance with the requirements and test conditions of the DIN 16001 high-pressure standard
- Wetted parts from stainless steel 316L
- Long service life with static pressure profiles
- Scale ranges: 0 ... 2,000 bar, 0 ... 2,500 bar and 0 … 3,000 bar
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- Safety pressure gauge with solid baffle wall designed in compliance with the requirements and test conditions of the DIN 16001 high-pressure standard
- High load cycle stability, even with dynamic pressure profiles
- High indication accuracy of 1 %, optionally 0.6 %
- Scale ranges from 0 ... 2,000 bar to 0 … 6,000 bar
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![WIKA Model 131.11 Bourdon tube pressure gauge, stainless steel Compact version, NS 40 [1 ½"], 50 [2"] and 63 [2 ½"]](https://www.ics-schneider.de/wp-content/uploads/2020/03/Typ-131.11-350x350.jpg?x34852)
- Case and wetted parts from stainless steel
- Version per EN 837-1 or ASME B40.100
- Cost-effective and reliable
- Scale ranges from 0 ... 1 to 0 … 1,000 bar [0 ... 15 to 0 ... 15,000 psi]
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- VCR® compatible face seal fittings
- Helium leak tested
- Electropolished case
- Process connection surface finish Ra ≤ 0.25 μm
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- Fully welded mounting ring to prevent water ingress into the control panel (ingress protection IP66)
- All stainless steel construction
- Optionally as safety version "S3" per EN 837-1
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- No configuration necessary due to “plug-and-play”
- Measuring ranges of up to 0 ... 1,000 bar or 0 ... 15,000 psi
- Easy-to-read analogue indication with nominal size 63
- Safety version with solid baffle wall (Solidfront) designed in compliance with the requirements of EN 837-1 and ASME B40.100
- Patents and property rights, e.g. US 8030990, DE 112007000980, CN 101438333
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- No configuration necessary due to "plug-and-play"
- Signal transmission per NAMUR
- Measuring ranges 0 ... 0.6 bar to 0 ... 1,600 bar
- Easy-to-read analogue display with nominal size 100 or 160
- Safety version S3 per EN 837
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The high-quality stainless steel version has proven itself for measuring gaseous, liquid and aggressive media.
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- Also available with case filling for high dynamic pressure loads or vibrations
- Instruments with inductive contacts for use in hazardous areas
- Instruments with contacts for PLC applications
- Safety version with solid baffle wall (Solidfront) available
- QR code on dial links to instrument-specific information
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Switch contacts (electrical alarm contacts) make or break circuits dependent upon the pointer position of the indicating measuring instruments.
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| User Manual (Pressure gauges with Reed contact) |
Stainless-Steel Bourdon Tube Pressure Gauges – durable, safe, process-ready
Stainless-steel Bourdon tube pressure gauges are the rugged choice for demanding media and environments. Made entirely of stainless steel 316L/1.4404, optionally with glycerin filling for vibration, available in safety design (solidfront/blow-out), and on request in hygienic or ATEX versions. Scale ranges span from vacuum to high pressure; connection variants (bottom/back, radial/axial) and nominal sizes (e.g., DN 63/100/160) can be tailored to your application.
ICS Schneider Messtechnik supports you with selection, materials and process connection, damping and protection, and calibration — including documentation to EN 837-1 and optional IIoT integration (e.g., parallel-mounted transmitter or switch contact). The result: reliable indication and traceable measurement quality with maximum service life.
FAQ on Stainless-Steel Bourdon Tube Gauges
Answers to common questions on selection, accuracy, installation, damping, safety, hygiene, calibration, and special options.
What are stainless-steel Bourdon tube gauges best suited for?
For corrosive media, harsh environments, outdoor use, higher temperatures, and processes with hygienic or hazardous-area requirements — wherever brass gauges reach their limits.
Which standards apply?
Typical versions follow EN 837-1 (Bourdon tube) with defined accuracy classes, overpressure ratings, safety windows, and optional solidfront per common safety concepts.
What accuracy classes are common?
| Application | Class | Note |
|---|---|---|
| General process indication | 1.6 – 2.5 | Cost-effective, good readability |
| Higher quality requirements | 1.0 | Finer scale |
| Test/reference tasks | 0.6 | Alternatively use a Digitalmanometer |
How do I choose the correct measuring range?
Select span as working pressure × 1.3–2.0. For pulsation/spikes, size larger or add damping. Use dedicated scales for vacuum/absolute pressure.
Which process connections are available?
| Connection | Standard | Orientation | Use |
|---|---|---|---|
| G 1/4 / G 1/2 | ISO 228 | bottom/back | Industry standard |
| ¼" NPT / ½" NPT | ASME | bottom/back | US / Oil & Gas |
| Tri-Clamp, Varivent®* | Hygienic | bottom | Food/pharma (with diaphragm seal) |
| Flange | EN/ASME | radial | High pressure/special media |
*Hygienic connections are typically via suitable diaphragm seals.
When is glycerin filling useful?
With vibration or pressure shocks. The fill damps pointer flutter, protects the movement, and improves readability. Observe the temperature range of the filling fluid.
How do I protect the instrument against pulsation and spikes?
Use restrictor screws/snubbers, capillaries, a siphon (for steam), or remote mounting with a diaphragm seal. Also, avoid sizing the range too tightly.
Which safety features are available?
Blow-out back (defined rupture at the rear), safety glass, and solidfront (barrier between dial and movement) for maximum personnel safety.
What temperature limits apply?
| Component | Range (typ.) | Note |
|---|---|---|
| Ambient | −20…+60 °C | Dial/mechanics |
| Medium | up to ~100 °C directly | Higher: use siphon/cooling element |
| Glycerin fill | −20…+60 °C | Other fillings on request |
How do mounting position and installation affect indication?
Position and vibration can shift zero. Mount with low vibration, avoid bending loads at the fitting, and check zero adjustment and fixation after installation.
Which materials offer media resistance?
Stainless steel 316L covers many media. For highly corrosive media, consider Hastelloy®, Monel®, Tantalum — usually with diaphragm seals and suitable seals (FKM/EPDM/PTFE).
What should I consider for hygienic applications?
Dead-leg-free connections via hygienic diaphragm seals, polished surfaces, suitable fill fluids (FDA/EU), CIP/SIP resistance, and EHEDG-compliant connections.
How do I ensure the right unit/scale?
Scales in bar, psi, kPa, or dual. Use one unit consistently; document conversions. Custom scales (e.g., % indication) available on request.
Can I measure absolute or differential pressure with a Bourdon tube?
Gauge pressure is standard. Absolute requires specific constructions. Differential is typically realized with capsule elements/DP transmitters.
How often should I calibrate?
Recommendation: annually for standard processes; for QA/safety loops semi-annually/quarterly. After overload/vibration, check immediately. Store certificates securely.
Which nominal sizes are available and why?
| Nominal size | Use | Benefit |
|---|---|---|
| DN 63 | Machinery, compact | Small, flexible |
| DN 100 | All-round/process | Good readability |
| DN 160 | Long viewing distance, vibration | Very good readability |
What options are common?
- Glycerin/silicone filling
- Safety design (solidfront, blow-out)
- Fine scale, colored marks, logo
- Adjustable/drag pointer
- Cleanable front (hygienic)
How do I integrate a gauge into IIoT/control systems?
Via a dual measuring point (gauge + transmitter) or via contact gauge/pressure switch. The transmitter provides 4–20 mA/HART/RS-485; an edge gateway publishes via MQTT/HTTPS.
What are typical fault causes?
- Pointer flutter: vibration → add filling/restrictor.
- Sluggish indication: damping too strong → check settings/hardware.
- Zero shift: temperature/overload → calibration/adjustment.
- Leaks: check gaskets/torque.
How should I store/transport correctly?
Shock-protected, dry, at moderate temperatures. Keep protective caps on fittings; store filled instruments upright.
Are Ex-area versions available?
Yes, instruments and accessories (e.g., electric contacts, limit signalers) are available in ATEX/IECEx-appropriate versions. Select by zone and protection concept.
Do you offer selection and calibration services?
Yes. We review medium/temperature, size range/damping, choose connection/materials, supply DAkkS/ISO calibrations, and complete documentation — with mounting accessories on request.