Pressure Gauges/

Air Pressure Gauge

Air pressure gauges are tools used to indicate the pressure of a gas within an enclosure. Fluid pressure is the measurement of the concentration of molecules in an enclosure; that presence manifests itself in terms of the force that the molecules exert against the boundaries of their enclosure. The word “fluid” technically can be used to describe a liquid or gas, and pressure gages used to measure the concentration of liquid in an enclosure closely resemble gas pressure gauges in terms of their construction and operating principles.

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Ashcroft® Inc.
Stratford, CT
800-328-8258
The Ashcroft name is widely recognized for trusted air pressure gauges designed and manufactured for highly reliable use in wastewater treatment facilities, biotech and pharmaceutical labs, medical applications, semiconductor facilities, refineries, power generation and food processing plants, pulp and paper mills, chemical manufacturing plants and all support companies that serve these.
 
Dwyer Instruments, Inc.
Michigan City, IN
800-872-9141
As a leading manufacturer of controls and instrumentation, including air pressure gauges, Dwyer continues to grow and serve major markets such as HVAC, chemical, food, oil and gas, and pollution control, among others. We discover new applications through a cooperative effort between our team and our customers, allowing us to continue to meet market demand as a successful leader.
 
AMETEK® U.S. Gauge
Feasterville, PA
888-625-5895
AMETEK® U.S. Gauge, a pressure gauge manufacturer, has been supplying quality products and services for 100 years, including pressure, liquid filled, precision test, digital, medical equipment, process and general equipment gauges. We are one of the world's leading suppliers of high quality, competitively priced differential pressure gauges. Call our company today!
 
Tel-Tru Manufacturing Company
Rochester, NY
800-232-5335
As a world-class manufacturer, Tel-Tru Manufacturing Company can meet all of your measurement needs. Our gauge product line includes an air pressure gauge. We serve the industrial, commercial, OEM, HVAC and food service markets with our top quality products and customer service that can not be beat. Visit our website today to see why customers prefer us.
 
United Instrument Company
Northvale, NJ
800-920-8186
The world is a much different place since the United Instrument Company's founding in 1932. However, we still have not changed our philosophy of ensuring our customers quality products, a fair price and speedy delivery. Our success is based on interaction between our customers and employees. Whether you need an air pressure gauge or any other product, we can help with all your measurement needs.
 
Automation Products Group, Inc.
Logan, UT
888-525-7300
Automated Products Group designs and supplies a diverse product line. Included in the product line is an air pressure gauge. We are known across the country for our products. Most notably, our liquid level and pressure sensors have had huge success for OEM market leaders in oil and gas, automatic car wash and medical industries. We are ISO 9001 compliant. Let us know how we can help you.
 
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Industry Information

Air Pressure Gauge

While the term "air pressure gauge" is not descriptive only of pressure gauges that measure air concentrations, it is limited to the measurement of gas concentration and excludes the measurement of liquid pressure. Air pressure gauges are important to industry, commerce and even in consumer products markets. They are used to determine gas concentration levels in gas storage tanks used for industrial processes, they are used to prevent explosions in boilers and they can be used to measure tire air pressure. Gas pressure is an expression of quantity, and measuring that pressure is the means by which the fullness or emptiness of a gas container can be determined.

There are many contexts in which air pressure gauges are employed, and the number of different gauge configurations is equally large. Barometers are examples of simple air pressure gauges; they are used to measure atmospheric pressure. A firm understanding of how a barometer works lends itself to a richer understanding of how more complicated pressure gauges operate. A barometer features a fluid in a container that is partially open to air exposure. The level of the fluid in the barometer indicates the level of atmospheric pressure in the barometer's immediate area. When the pressure increases, the level of the fluid in the barometer rises; when pressure falls, the fluid level also falls. All air pressure gauges accomplish this same task, though each configuration varies in the way in which it is accomplished. Bourdon gauges, for example, involve a strip of metal that changes shape based on differences in fluid pressure. Bourdon gauges are used to measure pressures relative to ambient atmospheric pressure. This means that the idle needle position on a Bourdon gauge indicates current atmospheric pressure; any needle position relative to the idle position indicates a pressure relative to current atmospheric pressure. Other gauge configurations are capable of measuring pressure regardless of atmospheric pressure. These configurations are called absolute pressure gauges. Different configurations are appropriate for different applications.