AA Series Pressure Gauges
Baumer AA Series Utility Pressure Gauge is an economical Bourdon type pressure gauge designed for general-purpose pressure measurement in air, water, HVAC, FRL, hydraulic, pneumatic, irrigation and allied industrial applications. It is available in multiple dial sizes with copper alloy wetted parts, steel case construction and pressure ranges suitable for vacuum, pressure and compound pressure measurement.
| Dial Size Letter | Dial Size |
|---|---|
| B | 40 mm |
| C | 50 mm |
| D | 63 mm |
| F | 100 mm |
| H | 150 mm |
| J | 250 mm |
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A. Product Overview
Baumer AA Series Utility Pressure Gauge is a mechanical Bourdon type pressure gauge used for routine industrial and utility pressure monitoring. It is designed as an economical and reliable solution for applications where pressure needs to be visually checked on machines, pipelines, air lines, water systems, FRL units and process equipment.
The gauge is available in standard nominal size options of 40 mm, 50 mm, 63 mm, 100 mm, 150 mm and 250 mm. Accuracy is ±1.6 percent of full scale for 63 mm, 100 mm, 150 mm and 250 mm sizes, and ±2.5 percent of full scale for 40 mm and 50 mm sizes. The Baumer AA Series is suitable for ambient temperature from -20 degree C to 65 degree C and maximum process temperature up to 150 degree C.
The gauge uses a powder coated or painted steel case, copper alloy Bourdon tube, copper alloy socket, copper alloy movement, aluminium dial, black fixed pointer and sheet glass window. It is available with different mounting types and process connection options depending on the application requirement.
B. Working Principle
Baumer AA Series Utility Pressure Gauge works on the Bourdon tube principle. When pressure enters the gauge through the process connection, it acts inside the curved Bourdon tube. As pressure increases, the Bourdon tube tends to straighten slightly. This mechanical movement is transferred through the internal movement mechanism to the pointer.
The pointer moves over the dial and shows the pressure value in the selected scale such as bar, psi, kg per cm², kPa, MPa or dual scale. Since it is a mechanical pressure gauge, it does not require external power supply for pressure indication.
C. Why It Is Used
Baumer AA Series Utility Pressure Gauge is used when a simple, economical and dependable pressure indication is required. It helps operators and maintenance teams check whether pressure is within the safe and required operating range.
It is commonly used for:
HVAC pressure monitoring
FRL unit pressure indication
Air and water line pressure checking
Hydraulic and pneumatic system monitoring
Irrigation equipment pressure indication
Valve positioner applications
Sugar mill and process industry utility pressure measurement
General machinery and equipment pressure monitoring
The gauge is useful because it provides quick visual pressure reading, helps detect abnormal pressure conditions, supports preventive maintenance and improves operational safety.
D. Suitable Buyers
Baumer AA Series Utility Pressure Gauge is suitable for buyers who need an economical and general-purpose pressure gauge for utility and industrial applications.
Suitable buyers include:
Industrial maintenance teams
HVAC contractors
Machine manufacturers
Panel builders
System integrators
Hydraulic and pneumatic equipment suppliers
Water treatment and irrigation equipment manufacturers
Sugar mill maintenance departments
Process plant engineers
OEMs and resellers dealing in pressure instruments
This product is especially suitable for customers looking for a Baumer pressure gauge for air, water, HVAC, FRL, hydraulic and pneumatic applications.
FAQ
1. What is Baumer AA Series Pressure Gauge used for?
Baumer AA Series Pressure Gauge is used for general-purpose pressure measurement in air, water, HVAC, FRL units, hydraulic systems, pneumatic systems, irrigation equipment and allied process industries.
2. Is Baumer AA Series a Bourdon type pressure gauge?
Yes, Baumer AA Series is a Bourdon type mechanical pressure gauge. It uses a Bourdon tube to convert process pressure into pointer movement on the dial.
3. What dial sizes are available in Baumer AA Series Utility Pressure Gauge?
The standard nominal size options are 40 mm, 50 mm, 63 mm, 100 mm, 150 mm and 250 mm.
4. What is the accuracy of Baumer AA Series Pressure Gauge?
The accuracy is ±1.6 percent of full scale for 63 mm, 100 mm, 150 mm and 250 mm sizes, and ±2.5 percent of full scale for 40 mm and 50 mm sizes.
5. What is the maximum process temperature of this gauge?
The maximum process temperature is 150 degree C.
6. What materials are used in Baumer AA Series Pressure Gauge?
The gauge has a steel powder coated or painted case, copper alloy Bourdon tube, copper alloy socket, copper alloy movement, aluminium dial, black fixed pointer and sheet glass window.
7. Can Baumer AA Series be used for water pressure measurement?
Yes, it can be used for water pressure measurement where the media is compatible with copper alloy wetted parts.
8. Can Baumer AA Series be used for air and pneumatic applications?
Yes, it is suitable for air lines, pneumatic systems and FRL unit pressure indication.
9. Is this gauge suitable for corrosive chemicals?
No, this model is mainly for general-purpose applications. For corrosive media, a stainless steel pressure gauge or pressure gauge with diaphragm seal should be selected based on media compatibility.
10. What pressure ranges are available?
The AA Series supports multiple vacuum, pressure and compound ranges. Common ranges include vacuum, 0 to 1 kg per cm², 0 to 2 kg per cm², 0 to 4 kg per cm², 0 to 7 kg per cm², 0 to 10 kg per cm² and higher ranges depending on nominal size and scale requirement.