Baumer Authorized Dealer in India · Made in Switzerland
Baumer All Stainless Steel Bourdon Tube Pressure Gauge AL Model
High-precision, all-SS 304/316L pressure gauge with socket directly welded to the case. Engineered for corrosive, hygienic, and high-purity industrial environments. Certified EN 837-1 & ASME B40.100. Dial sizes 100–250 mm. Vacuum to 1600 bar.
About The Product
What Is the Baumer All SS Pressure Gauge (AL Model)?
The Baumer AL Model is a premium all-stainless-steel Bourdon tube pressure gauge manufactured in Switzerland by the Baumer Group — a global leader in industrial sensing, process measurement, and automation technology. The “AL” designation refers to its All-SS (All Stainless Steel) construction where the case, bezel, Bourdon tube, socket, and movement are all made from corrosion-resistant stainless steel.
A distinguishing feature of the AL Model is its socket directly welded to the case using TIG Argon Arc Welding — eliminating threaded joints that can trap process media, corrode, or leak. This makes the AL Model the preferred choice in pharmaceutical, semiconductor, food & beverage, and high-purity chemical applications where crevice-free, cleanable, and contamination-resistant construction is mandatory.
Certified to EN 837-1 (European standard) and ASME B40.100 (international / US standard), with CE marking per PED 97/23/EC, the AL Model meets the most stringent global procurement specifications used by EPC contractors, plant engineers, and maintenance teams across India and internationally.
Working Principle: Bourdon tube deformation under pressure → dial reading via SS gear-lever movement
Manufacturer: Baumer Group, Switzerland (founded 1952)
Standards: EN 837-1 & ASME B40.100 | CE (PED 97/23/EC) for NS 100 & 150 mm
Accuracy: ±1.0% of Full Scale (Class 1.0)
Protection: IP 65 ingress protection — dust-tight, water-jet resistant
Unique Design: Socket directly TIG-welded to case — no threaded joints, crevice-free
Supplied by: Zebco Engineering LLP — Authorized Baumer Dealer in India
Key Features at a Glance
- Full stainless steel construction: case, Bourdon tube, socket & movement
- Socket directly welded to case (TIG Argon Arc) — no crevices
- Dial sizes: 100mm | 125mm | 150mm | 200mm | 250mm
- Pressure range: vacuum / compound up to 0–1600 bar
- Accuracy: ±1.0% of Full Scale (EN 837-1 / ASME B40.100)
- Ambient temperature: –25°C to +65°C
- Max process temperature: 300°C (with capillary/remote seal)
- IP 65 protection — dust-tight & water-jet resistant
- Dry case and liquid-filled (glycerine / silicone oil) versions
- CE marking per PED 97/23/EC (NS 100 & 150 mm)
- External zero adjustment option available
- Bottom entry or back entry, surface or panel mounting
- ATEX and EAC approvals available for hazardous areas
Product Models
Dry vs Liquid-Filled — Which AL Model Variant Fits Your Application?
Both variants use identical all-SS construction. Choose based on the vibration and pulsation level in your process environment.
Dry Case AL Model
Ideal for clean, stable process conditions with low mechanical vibration and no significant pressure pulsation.
- Clean process environments — pharmaceutical, food, lab
- Stable pipelines with minimal vibration
- Panel or wall-mounted installations
- Wide ambient temperature range — no fill fluid concerns
- Easy dial reading — no fill fogging in cold environments
- Lower cost for general-purpose applications
Glycerine / Silicone Oil Filled
For vibrating machinery, pump outlets, compressors, and hydraulic systems — liquid fill dampens needle oscillation and protects against condensation.
- High vibration: pumps, compressors, engines, turbines
- Pulsating pressure: hydraulic & pneumatic lines
- Glycerine fill — cost-effective, most common option
- Silicone oil fill — food-grade, pharma, cryogenic service
- Reduces mechanical wear on movement for longer life
- Semiconductor & ultra-pure gas lines (silicone fill)
Technical Data
Technical Specifications — Baumer AL Model Pressure Gauge
Full technical parameters as per EN 837-1 and ASME B40.100. Zebco Engineering can supply any configuration — contact us for custom dial, connection, or fill requirements.
| Parameter | Specification / Options |
|---|---|
| Standard | EN 837-1 (NS 100, 150 & 250 mm) | ASME B40.100 | CE (PED 97/23/EC) for NS 100 & 150 mm |
| Dial Sizes (NS) | 100 mm | 125 mm | 150 mm | 200 mm | 250 mm |
| Accuracy Class | ±1.0% of Full Scale (EN 837-1 / ASME B40.100) | ±1.6% FS for general-purpose configurations |
| Pressure Range | Vacuum / compound up to 0–1600 bar (0–23,200 psi) |
| Ambient Temperature | –25°C to +65°C |
| Process Temperature | Maximum 300°C (with capillary or remote diaphragm seal) |
| Operating Pressure | Steady pressure: up to 75% of full scale |
| Fluctuating pressure: up to 66% of full scale | |
| Short-term peak: up to 100% of full scale | |
| Overpressure Limit | <100 bar ranges: up to 125% of full scale |
| 100–600 bar ranges: up to 115% of full scale | |
| 600–1600 bar ranges: up to 110% of full scale | |
| Case & Bezel | AISI 304 Stainless Steel | Bayonet-type bezel ring |
| Bourdon Tube | AISI 316L Stainless Steel |
| Socket | AISI 316L SS — directly TIG Argon Arc welded to case (no threaded joint) |
| Movement | AISI 304 Stainless Steel |
| Welding Method | TIG Argon Arc Welding (crevice-free construction) |
| Dial | Aluminium | Black graduation on white background |
| Pointer | Aluminium, black — micrometer zero adjustable |
| Window | Sheet glass (standard) | Safety glass (optional) |
| Blow-off Disc | Neoprene |
| Gasket & Filling Plug | Neoprene |
| Protection Rating | IP 65 (dust-tight and water-jet resistant) |
| Case Filling Options | Dry (no fill) |
| Glycerine (standard liquid fill) | |
| Silicone oil (food, pharma & cryogenic service) | |
| Connection / Mounting | Bottom entry (radial) | Back entry (axial) |
| Surface mounting | Panel mounting | |
| Connection sizes: G¼", G½", NPT¼", NPT½" (as specified) | |
| External Zero Adjustment | Optional (micrometer-adjustable zero pointer) |
| Special Approvals | ATEX (hazardous area) | EAC (Eurasian conformity) | NACE (H₂S service — on request) |
Pressure Ranges
Available Pressure Ranges
The Baumer AL Model covers the complete industrial pressure spectrum — from vacuum and compound ranges to ultra-high-pressure applications up to 1600 bar. National and international scales available: kPa, MPa, bar, psi, kg/cm² and dual scales on request.
Single Scale (bar / kg/cm²)
Dual Scale (PSI with KG/CM²)
| PSI | KG/CM² | PSI | KG/CM² | PSI | KG/CM² |
|---|---|---|---|---|---|
| 0 – 15 | 0 – 1 | 0 – 400 | 0 – 28 | 0 – 4000 | 0 – 280 |
| 0 – 30 | 0 – 2 | 0 – 500 | 0 – 35 | 0 – 5000 | 0 – 350 |
| 0 – 60 | 0 – 4 | 0 – 600 | 0 – 40 | 0 – 6000 | 0 – 420 |
| 0 – 100 | 0 – 7 | 0 – 1000 | 0 – 70 | 0 – 10000 | 0 – 700 |
| 0 – 150 | 0 – 10 | 0 – 1500 | 0 – 100 | 0 – 15000 | 0 – 1000 |
| 0 – 220 | 0 – 16 | 0 – 2200 | 0 – 160 | 0 – 22000 | 0 – 1600 |
| 0 – 300 | 0 – 20 | 0 – 3000 | 0 – 200 | — | — |
Vacuum & Compound Ranges
Dual Scale — inHg with psi / mmHg with kg/cm²
Single Scale Vacuum — kg/cm²
Special & Receiver Scales (Available on Request)
* Scales available in kPa, MPa, bar, psi, kg/cm² and dual combinations. Custom ranges, IBR-approved configurations, and NACE-compliant versions available on request. Contact Zebco Engineering for specifications not listed above.
Material Options
Construction Materials & Filling Options
Every material in the Baumer AL Model is specified for corrosion resistance, cleanliness, and long service life across diverse industrial and high-purity environments.
Stainless Steel 304 Case
Robust, corrosion-resistant austenitic SS for the outer case and internal movement components. Bayonet-type bezel ring for easy field servicing. Cost-effective for most industrial environments.
SS 316L Bourdon Tube & Socket
Low-carbon 316L stainless steel for all process-wetted parts. Superior resistance to chlorides, acids, and aggressive chemicals. Directly TIG-welded socket ensures zero-crevice, contamination-free construction — essential for pharma, food, and semiconductor applications.
Dry Case Version
Standard version with no liquid fill. Best for clean, stable environments with low vibration. Suitable for most general industrial, pharmaceutical laboratory, and clean room applications where liquid fill is not permitted or not required.
Glycerine Liquid Fill
The most widely used fill for vibration and pulsation damping in industrial environments. Glycerine is cost-effective and compatible with most process media. Suitable for ambient temperature ranges in process plants, compressor stations, and hydraulic systems.
Silicone Oil Liquid Fill
Preferred for food & beverage (FDA-compatible), pharmaceutical, semiconductor, and cryogenic applications. Inert, odourless, and stable across an extreme temperature range. Does not support microbial growth — critical for hygienic process environments.
TIG Argon Arc Welded Construction
The socket is permanently TIG Argon Arc welded directly to the SS case — not screwed. This is the AL Model's signature structural feature, delivering leak-proof, crevice-free joints that cannot loosen over time and meet the cleanability requirements of pharmaceutical and semiconductor standards.
Applications
Where Is the Baumer AL Model Used?
The crevice-free, all-SS welded construction and IP 65 protection make the Baumer AL Model the preferred choice wherever cleanliness, corrosion resistance, and reliable measurement are non-negotiable.
Pharmaceutical & Biotech
CIP/SIP steam lines, WFI distribution, bioreactors, autoclave vessels. Crevice-free socket weld prevents microbial entrapment — critical for cGMP compliance.
Semiconductor & Electronics
Ultra-pure gas cabinets, chemical vapor deposition (CVD), etching systems, and clean room process lines. All-SS welded construction supports ultra-high purity requirements.
Chemical & Petrochemical
Aggressive acid and solvent handling, reactor pressure monitoring, heat exchanger circuits. SS 316L wetted parts resist chlorides, acids, and corrosive process media.
Cryogenics & Refrigeration
Cryogenic gas storage (LN₂, LOX, LAr), refrigerating plants, HVAC systems. Silicone oil-filled version rated for extreme low-temperature ambient conditions.
Power Plants
Conventional and nuclear power generation — boiler steam lines, cooling circuit monitoring, turbine lube-oil systems, condenser vacuum measurement.
Hydraulic Presses & Compressors
Engine compressors, diesel engines, hydraulic power packs, pneumatic press systems. Liquid-filled version handles pulsation and vibration from high-cycle machinery.
Water Treatment & HVAC
Municipal water distribution, RO plant pressure monitoring, cooling tower circuits, HVAC refrigerant pressure measurement in commercial and industrial buildings.
General Industrial
Process automation, machine tools, lube systems, test benches, and any application requiring a clean, durable, all-SS pressure instrument with IP 65 protection.
Semiconductor Industry
Baumer AL Model for the Semiconductor & Electronics Manufacturing Industry
Semiconductor fabrication demands the most uncompromising standards in pressure measurement — zero contamination risk, ultra-high purity, and absolute reliability. The Baumer AL Model's crevice-free welded construction makes it one of the few Bourdon tube gauges qualified for these environments.
Why the Baumer AL Model Is Specified for Semiconductor Fabs
- Crevice-free construction: Socket directly TIG-welded to case eliminates joints where process gases or chemicals could accumulate, preventing contamination of ultra-pure media streams.
- All-SS 316L wetted parts: Full stainless-steel contact surfaces resist hydrofluoric acid (HF), sulfuric acid (H₂SO₄), and phosphoric acid (H₃PO₄) used in wafer etching and cleaning steps.
- IP 65 sealed construction: Prevents particulate contamination from the fab environment from entering the gauge internals — critical in ISO Class 5–7 clean rooms.
- Silicone oil fill option: Inert and compatible with semiconductor process media — used in process gas cabinets where glycerine fill could introduce organic contamination.
- External zero adjustment: Allows in-situ recalibration without removing the gauge from the process line — reduces downtime and contamination risk during maintenance.
- Wide pressure range coverage: From vacuum (roughing pump monitoring) to high positive pressure (gas cylinder regulators, process gas supply at 10–600 bar), a single gauge platform covers the fab's needs.
Semiconductor Process Monitoring Applications
Why Choose Us
Why India's Top Industries Trust Zebco Engineering for Baumer Gauges
Zebco Engineering LLP is an authorized Baumer dealer in India with over a decade of experience supplying precision instrumentation to pharma, semiconductor, food, chemical, and industrial sectors.
Authorized Baumer Dealer
100% genuine Baumer instruments with manufacturer documentation, test certificates, and calibration reports — full traceability from Swiss factory to your site.
Expert Application Support
Technical guidance on selecting the right AL Model configuration — dial size, pressure range, connection type, fill fluid, and certifications — for your specific process and industry requirements.
Competitive Pricing
Transparent best-value quotations on all Baumer AL Model variants. Bulk pricing, project discounts, and flexible commercial terms for EPCs, OEMs, and maintenance teams.
Pan India & Global Delivery
Reliable supply chain covering all major Indian industrial cities and international export to the Middle East, Southeast Asia, South Asia, and East Africa.
95% On-Time Delivery
We maintain a 95% on-time delivery track record — ensuring your Baumer AL Model gauges reach your site when your project needs them, with zero production delays.
Full Documentation Support
Material test reports (EN 10204 3.1), calibration certificates, CE declarations, ATEX certificates, and project-specific data books for audit-ready procurement in regulated industries.
Delivery
Pan India & Global Supply
Zebco Engineering delivers Baumer AL Model gauges to every industrial zone in India and internationally to key global markets. Fast dispatch for standard orders; competitive lead times on special configurations.
🇮🇳 Pan India Delivery
Supplying Baumer gauges to India's major pharmaceutical, semiconductor, food, and chemical industrial clusters:
Dispatched from our Gujarat warehouse. Express delivery available. We supply to pharmaceutical clusters in Ahmedabad, Baddi, Haridwar; semiconductor zones in Sanand, Jagiroad, and Narsapur.
🌐 Global Export
International supply of Baumer gauges with full export documentation, commercial invoices, country-of-origin certificates, and ATEX/CE compliance packs:
Air freight and sea freight options. FOB / CIF pricing available. Contact us for DDP pricing to Middle East and Southeast Asian destinations.
FAQ
Frequently Asked Questions
Common questions about the Baumer AL Model all-SS pressure gauge and how to purchase it from Zebco Engineering in India.
The Baumer AL Model is an all-stainless-steel Bourdon tube pressure gauge manufactured in Switzerland. What sets it apart is its socket directly TIG Argon Arc welded to the case — eliminating the threaded socket joints found on conventional gauges. This crevice-free construction prevents media entrapment, is fully cleanable (CIP/SIP), and eliminates potential leak points. Combined with all-SS 304/316L construction, IP 65 protection, and CE/EN 837-1/ASME B40.100 certification, it is uniquely suited for pharmaceutical, semiconductor, food & beverage, and high-purity industrial applications.
Five standard dial sizes are available: 100mm, 125mm, 150mm, 200mm, and 250mm. The 100mm and 150mm sizes carry CE marking as per PED 97/23/EC. Larger dial sizes (200mm and 250mm) provide improved readability for panel boards or remote reading applications. All sizes are available in both dry and liquid-filled configurations.
Yes — the Baumer AL Model is widely specified in semiconductor fabrication environments. Key reasons: (1) crevice-free TIG-welded socket construction prevents process media entrapment and contamination; (2) all-SS 316L wetted parts resist hydrofluoric acid, sulfuric acid, and other aggressive semiconductor chemicals; (3) IP 65 sealed construction prevents particulate contamination in clean rooms; (4) silicone oil fill option is inert and introduces no organic contamination into ultra-pure gas or chemical lines. It is suitable for process gas cabinets, CVD/PVD chambers, wet chemical etching lines, UPW distribution, and CMP slurry systems.
The maximum supported process temperature is 300°C — achievable with a capillary tube or remote diaphragm seal siphon that keeps high-temperature media away from the gauge internals. Without a siphon, a maximum of approximately 100°C is recommended for direct connection to protect the liquid fill in filled versions. The standard ambient temperature range is –25°C to +65°C.
Both glycerine and silicone oil fill options damp needle vibration and extend gauge service life. Glycerine is the more economical option and suits most general industrial, chemical, and process applications. Silicone oil is the preferred fill for food & beverage (FDA-compatible, odourless, non-toxic), pharmaceutical (no microbial growth), semiconductor (inert, no organic contamination), and cryogenic applications (stable at low ambient temperatures). If your application involves food contact risk, pharma cleanroom compliance, or ultra-pure gas lines, always specify silicone oil fill.
The Baumer AL Model is certified to EN 837-1 (European Bourdon tube gauge standard), ASME B40.100 (American/international standard), and carries CE marking per PED 97/23/EC for NS 100mm and 150mm sizes. Optional approvals include ATEX (hazardous area — Zones 1, 2, 21, 22), EAC (Eurasian conformity mark for Russia/CIS export), and NACE MR0175 compliance for H₂S-containing environments. Zebco Engineering can supply full manufacturer documentation including EN 10204 3.1 material certificates and calibration certificates.
Both are all-SS pressure gauges with comparable pressure range coverage and accuracy. The key differences: Baumer AL Model has a TIG-welded socket directly to the case (crevice-free, preferred for pharma, food, semiconductor), while WIKA uses a screwed connection with additional safety features like blow-out back design (preferred for oil & gas, heavy industrial). Baumer is made in Switzerland; WIKA in Germany. Baumer offers more dial sizes (100, 125, 150, 200, 250mm vs WIKA's 63, 100, 160mm). For hygienic, high-purity, and clean room applications, the Baumer AL Model is typically specified. For high-pressure oil & gas and heavy industrial safety requirements, WIKA is often preferred. Both are available from Zebco Engineering — contact us to discuss which is right for your application.
You can get a quote through: (1) Fill the enquiry form on this page, (2) Call or WhatsApp at +91 98982 26321, or (3) Email sales@zebcoeng.com. For fastest response, please provide: required dial size (100/125/150/200/250mm), pressure range, connection type (bottom/back, BSP/NPT size), fill option (dry/glycerine/silicone), quantity, and any special certifications required (ATEX, CE, NACE, 3.1 MTC). We typically respond within the same business day.
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