About The Product
What Is the Baumer All SS Pressure Gauge (AD Model)?
The Baumer AD Model is an all-stainless-steel Bourdon tube pressure gauge manufactured by Baumer Group, built to the general requirements of EN 837-1. The case, bezel, socket, Bourdon tube and movement are all in corrosion-resistant stainless steel, giving the AD Model the rugged, long-service-life construction needed on pumps, compressors, hydraulic systems, and process plant across India.
A key structural feature of the AD Model is its 316L SS socket directly welded to the case using TIG Argon Arc welding — a rugged, corrosion-resistant joint rather than a threaded connection. Available in two dial sizes, 50 mm and 63 mm, the gauge can be specified dry (standard), dry-but-fillable in the field (option FG), or factory glycerine-filled (option PY) to suit the vibration and pulsation profile of your process.
With IP 65 ingress protection, a wide -25°C to +65°C ambient range, and pressure coverage from vacuum to 1600 bar, the AD Model is the entry-level, cost-effective choice within Baumer's all-SS Bourdon gauge range — supplied across India by Zebco Engineering LLP, an authorized Baumer dealer.
Key Features at a Glance
- All stainless steel case, Bourdon tube, socket & movement
- Socket directly welded to case — rugged, corrosion-resistant joint
- Dial sizes: 50 mm and 63 mm
- Dry, dry-but-fillable (FG), or glycerine-filled (PY) versions
- IP 65 ingress protection
- Ambient temperature: -25°C to +65°C (standard version)
- Max. process temperature: 200°C (standard) / 65°C (filled versions)
- Seven mounting styles — bottom, back, flange or bracket entry
- Bayonet-type or rolling-type case design
- Pressure range: vacuum / compound up to 0–1600 bar
Working Principle
Bourdon tube deforms under pressure, driving the dial pointer via a gear-lever movement
Manufacturer
Baumer Group — global sensor and instrumentation manufacturer
Standard
EN 837-1 general requirements for Bourdon tube pressure gauges
Accuracy
±1.6% of F.S. (NS 63 mm) & ±2.5% of F.S. (NS 50 mm)
Protection
IP 65 — dust-tight and water-jet resistant
Unique Design
316L SS socket directly TIG-welded to the bayonet-type SS case
Product Models
Standard, Fillable (FG) & Glycerine-Filled (PY) — Which AD Model Variant Fits Your Application?
All three versions share the same all-SS bayonet-type construction. Choose based on your process vibration, pulsation and ambient temperature conditions.
Standard Version
No liquid fill — the most cost-effective choice for clean, stable process conditions.
- •Accuracy ±1.6% F.S. (NS63) / ±2.5% F.S. (NS50)
- •Ambient -25°C to +65°C, process max. 200°C
- •Best for clean, low-vibration installations
- •Lower cost for general-purpose monitoring
Dry But Fillable
Ships dry, ready to be field-filled with glycerine if vibration conditions demand it later.
- •Fillable with glycerine 99.7% on site
- •Ambient & process temperature max. 65°C once filled
- •Ideal when future vibration conditions are uncertain
- •Same case, Bourdon and movement as standard version
Glycerine Filled
Factory-filled from day one — the right choice for known high-vibration installations.
- •Factory-filled with glycerine 99.7% dampening liquid
- •Ambient & process temperature max. 65°C
- •Suited to pumps, compressors, hydraulic & pulsating lines
- •Reduces pointer flutter and mechanical wear
Technical Data
Technical Specifications — Baumer AD Pressure Gauge
Full technical parameters as per Baumer datasheet 06-07-16. Zebco Engineering can supply any configuration — contact us for custom dial, connection, or fill requirements.
| Parameter | Specification / Options |
|---|---|
| Standard | Standard version: NS 50 mm & 63 mm, general EN 837-1 |
| Accuracy | ±1.6% of F.S. (NS 63 mm) & ±2.5% of F.S. (NS 50 mm) |
| Ambient temperature | -25°C to +65°C |
| Process temperature | Max. 200°C |
| Operating pressure | 75% of scale value |
| Overpressure limit | <100 bar: 125% of max scale · 100–600 bar: 115% · 600–1600 bar: 110% |
| Case & Bezel | AISI 304 SS (bayonet type) |
| Socket | AISI 316L SS — directly welded to case |
| Bourdon tube | AISI 316L SS |
| Movement | AISI 304 SS |
| Joints | TIG Argon Arc Welding |
| Protection | IP 65 |
| Dial | Aluminium, black graduation on white background |
| Pointer | Black coloured, fixed |
| Window | Polycarbonate glass (63mm) / Plexi glass (50mm) |
| Filling plug | Nitrile |
| Gasket | Neoprene (bayonet type) / Silicon rubber (rolling type) |
| Dry but fillable (FG) | Glycerine 99.7% · ambient & process max. 65°C |
| Glycerine filled (PY) | ±1.6% F.S. (63mm) / ±2.5% F.S. (50mm) · ambient & process max. 65°C |
Temperature effect: variation caused by ambient temperature is added to the specified accuracy per the formula ± 0.04 × (t2 − t1)% of F.S., where t1 = reference temperature (+20°C) and t2 = ambient temperature in °C.
Dimensions
Dimensions — Bayonet & Rolling Type (NS 63 mm)
Seven mounting configurations are available in both bayonet and rolling case styles. Dimensions in mm; drawings not to scale. Weights are approximate for the standard product.
| Type | Mounting Style | A (mm) | B (mm) | Ø C (mm) | Ø D (mm) | E (thread) | Weight, with box (g) |
|---|---|---|---|---|---|---|---|
| Type 1 | Wall/surface projection, bottom entry | 11 | 32 | 69.5 | 62.5 | Sq 14 | 215.0 |
| Type 2 | Direct bottom entry | 11 | 32 | 69.5 | 62.5 | Sq 14 | 190.0 |
| Type 3 | Direct lower back entry | 11 | 32 | 69.5 | 62.5 | Sq 14 | 190.0 |
| Type 4 | Direct center back entry | 11 | 32 | 69.5 | 62.5 | Sq 14 | 188.0 |
| Type 5 | Lower back entry with front flange | 11 | 32 | 69.5 | 62.5 | Sq 14 | 213.0 |
| Type 12 | Center back entry with front flange | 11 | 32 | 69.5 | 62.5 | Sq 14 | 213.0 |
Add 12 mm to dimension A for the shatterproof / safety glass option. Type 13 (center back entry with mounting bracket) is applicable to rolling-type design only. Full dimensional tables for both 50mm and 63mm dials, in bayonet and rolling styles, are available on request or in the full datasheet.
Pressure Ranges
Available Pressure Ranges — AD Model
The Baumer AD Model covers vacuum, compound and positive pressure ranges up to 1600 bar. National and international scales in kPa, MPa, bar, psi, kg/cm² and dual scales are available on request. Example ranges (psi with kg/cm²) below.
Ammonia With Temperature Scale (NS 63 mm)
| NS 63 mm | |
|---|---|
| -30" Hg / 150 psi | Available |
| -30" Hg / 300 psi | Available |
| 0/300 psi | Available |
| -1/12.5 kg/cm² | Available |
| -1/16 kg/cm² | Available |
| -1/25 kg/cm² | Available |
Accessories available: EC gauge cock, ED overload protector (gauge saver), needle valve, EG snubber, EH siphon, EB cooling tower. Refer to the valves & manifolds catalogue or contact Zebco Engineering for full specifications.
Material Options
Construction Materials & Filling Options
Every material in the AD Model is selected for durability, corrosion resistance and long service life in general industrial applications.
Case, Bezel & Movement
Robust, corrosion-resistant austenitic stainless steel for the outer case, bayonet-type bezel ring and internal movement — easy field servicing and long service life.
Bourdon Tube & Socket
Low-carbon 316L stainless steel for the Bourdon tube and socket, which is directly welded to the case using TIG Argon Arc welding for a rugged, corrosion-resistant joint.
Standard Dry Version
No liquid fill. Best for clean, stable environments with low mechanical vibration — general industrial, conventional and equipment monitoring applications.
FG & PY Filled Versions
Fillable (FG) or factory-filled (PY) with glycerine dampening liquid — dampens needle oscillation and protects the movement in pumps, compressors and hydraulic lines.
Applications
Where Is the Baumer AD Pressure Gauge Used?
Rugged all-SS construction, IP65 protection and EN 837-1 compliance make the AD Model suited to a wide range of industrial applications across India.
Food & Beverage
Process line pressure monitoring in food and beverage production.
Engine Compressors
Compressor discharge and system pressure monitoring, dampened for vibration.
Diesel Engines
Fuel and lubrication pressure indication on diesel engine systems.
Equipment & Presses
General industrial equipment, conventional systems and hydraulic presses.
Nuclear Power Plants
Rugged SS construction suited to power generation pressure monitoring.
Pharmaceutical
Clean, corrosion-resistant gauge for pharmaceutical process lines.
Turbines & Hydraulic
Lube-oil and hydraulic circuit pressure indication on rotating machinery.
Petrochemical & Chemical
Aggressive process media handling in chemical and petrochemical plants.
Hydro-Cleaning Machines
High-pressure water jet system monitoring for cleaning equipment.
Refrigerating Plants
Gaseous and liquid media pressure monitoring that will not obstruct the system.
Pumps
Discharge and suction pressure monitoring across pump installations.
General Industrial
Conventional process automation, machine tools and test benches.
Hydraulic & Pump Industry
Baumer AD Model for Pumps, Compressors & Hydraulic Systems
Rotating and reciprocating machinery generates continuous vibration and pressure pulsation — the two conditions that most quickly damage an unprotected Bourdon gauge. The AD Model's all-SS construction and optional glycerine fill make it a dependable choice for these demanding installations across India's pump, compressor and hydraulic OEM sector.
Why the Baumer AD Model Is Specified for Rotating Machinery
- •Glycerine-filled (PY) option: Dampens needle oscillation from pump and compressor vibration, protecting the movement and keeping the dial readable under continuous operation.
- •All-SS 304/316L construction: Resists the oils, coolants and hydraulic fluids commonly present around pump skids and hydraulic power packs.
- •Directly welded 316L SS socket: A rugged, corrosion-resistant joint that stands up to the mechanical stress transmitted through the process connection.
- •IP 65 protection: Keeps out dust and water jets in wash-down areas around compressor houses and hydraulic test benches.
- •Overpressure tolerance: Rated up to 125% of max scale value for ranges below 100 bar, absorbing transient pressure spikes from pump start-up and valve closure.
- •Wide range coverage: From low-pressure lubrication circuits to 1600 bar hydraulic systems, one gauge platform covers most rotating-equipment needs.
Typical Rotating Machinery Applications
Pump Discharge & Suction
Monitoring centrifugal and positive displacement pump pressure across process and utility lines.
Compressor Systems
Discharge pressure monitoring on reciprocating and rotary air/gas compressors.
Hydraulic Power Packs
System pressure indication on hydraulic power units feeding presses and machinery.
Diesel Engine Systems
Fuel and lubrication pressure indication on stationary and mobile diesel engines.
Turbine Lube-Oil Circuits
Continuous lubrication pressure monitoring on turbines and rotating machinery.
Hydro-Cleaning Equipment
High-pressure water-jet pump monitoring for industrial cleaning machines.
Ordering Guide
How to Order the Baumer AD Pressure Gauge
Ordering code: AD . X . X OR XX . XXX . Range . XX — nominal size, mounting type, gauge connection, range, and optional extras.
Nominal Size
Code C = 50 mm, Code D = 63 mm.
Mounting Type
Type 1 wall/surface projection, 2 direct bottom entry, 3 direct lower back entry, 4 direct center back entry, 5 lower back entry with front flange, 12 center back entry with front flange, 13 center back entry with mounting bracket (rolling type only).
Gauge Connection
1BM/1NM/1TM = 1/8" BSP(M)/NPT(M)/BSPT(M). 2BM/2NM/2TM = 1/4" BSP(M)/NPT(M)/BSPT(M). Metric, PT, PF, flared, UNF, G or R on request.
Pressure Range
Select from the range table — pressure, vacuum or compound, in bar, psi, kg/cm² or dual scale.
Optional Extras
RH custom dial, PS 316 SS case & bezel, FG fillable glycerine, PY glycerine filled, RR/RE IP66/IP67, PU calibration certificate, GH material test certificates, and more.
Confirm & Order
Share your configuration with Zebco Engineering for a formal quotation, lead time and documentation package.
Why Choose Us
Why India's Industries Trust Zebco Engineering for Baumer Gauges
Zebco Engineering LLP is an authorized Baumer dealer in India, supplying precision pressure and temperature instrumentation to process, machine building and industrial sectors nationwide.
Authorized Baumer Dealer
100% genuine Baumer instruments with manufacturer documentation and full traceability.
Expert Application Support
Technical guidance on dial size, mounting, connection and fill fluid for your exact requirement.
Competitive Pricing
Transparent quotations, bulk pricing for OEMs and EPCs, flexible commercial terms.
Pan India & Global Delivery
Reliable supply across India's industrial zones and export to Middle East, Southeast & South Asia.
Fast Dispatch
Stocked inventory enables short lead times for urgent maintenance and commissioning needs.
Full Documentation Support
Test reports, calibration certificates and material certificates for audit-ready procurement.
Delivery
Pan India & Global Supply
Zebco Engineering delivers Baumer AD pressure gauges to every industrial zone in India and internationally to key global markets.
🇮🇳 Pan India Delivery
Supplying Baumer AD pressure gauges to India's major industrial, process and machine building clusters.
🌐 Global Export
International supply with export documentation, commercial invoices and compliance certificates.
FAQ
Frequently Asked Questions
Common questions about the Baumer AD Model all-SS pressure gauge and how to purchase it from Zebco Engineering in India.
The Baumer AD Model is an all-stainless-steel Bourdon tube pressure gauge built to general EN 837-1 requirements, available in 50 mm and 63 mm dial sizes with a bayonet-type SS case and bezel, a directly welded 316L SS socket, and a 316L SS Bourdon tube. It is offered dry, dry-but-fillable (option FG), or factory glycerine-filled (option PY).
±1.6% of full scale for the 63 mm dial and ±2.5% of full scale for the 50 mm dial.
The standard dry version has no fill fluid. The FG (dry but fillable) version can be filled with glycerine 99.7% in the field if vibration conditions change. The PY version is factory glycerine-filled from the start, for applications with vibration or pulsation from day one.
Standard version: ambient -25°C to +65°C, maximum process temperature 200°C. FG and PY (glycerine-filled) versions: maximum ambient and process temperature 65°C.
Seven mounting types — direct bottom entry, direct lower back entry, direct center back entry, lower/center back entry with front flange, center back entry with mounting bracket, and wall/surface projection mounting — in bayonet or rolling-type case styles. Standard connections are 1/8" and 1/4" BSP(M), NPT(M) or BSPT(M).
IP 65 as standard. Case and bezel are AISI 304 stainless steel (bayonet type), the socket is AISI 316L SS directly welded to the case, the Bourdon tube is AISI 316L SS, and the movement is AISI 304 SS — joined by TIG Argon Arc welding.
Vacuum, compound and positive pressure ranges up to 1600 bar (23,200 psi), in bar, psi, kg/cm², kPa, MPa and dual scales. Ammonia-with-temperature-scale ranges are also available on the 63 mm dial.
Yes. Zebco Engineering LLP is an authorized Baumer dealer in India, supplying pan India to all major industrial zones plus international export to the Middle East, Southeast Asia and South Asia with complete documentation. Contact +91 98982 26321 or sales@zebcoeng.com.
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