Anatomy of A Pressure Gauge
Please visit our web store at http://www.fdpp.com to purchase pressure gauges and other fluid handling products such as strainers, valves and fittings.
Pressure gauges are used for many applications, however I wondered "how many people actually know how pressure gauges work?"
Pressure Gauges Are Important...
The importance of pressure gauges are often overlooked. A well designed and properly sized pressure gauge should provide accurate service for years. The performance of spray nozzles, pumps and other fluid components are often judged in part by pressure gauges in the fluid system. A quality pressure gauge will pay for itself within a short period of time by increasing the accuracy and control of your process.
The balance of this page and the next three links serve as a brief introduction to pressure gauge design. For more detailed information or customized gauges, please contact us via the "Inquiries" button Above.
 | To the left you can see the two most popular types of pressure gauges - regular and (more reliable) filled. The two most common causes for gauge failure are pipe vibration and water condensation (which can lead to freezing in colder environments). The delicate links, pivots and pinions of a regular gauge are sensitive to both condensation and vibration. Filled gauges last longer because they have fewer moving parts and the housing is filled with a viscous glycol or silicon fluid. The fill in a gauge helps dampen pointer vibration and eliminates corrosion as a result of condensed water in areas having humid air. |
Pressure gauges are classified by their precision, from Grade 4A (permissible error of 0.1% of pressure range) to Grade D (5% error).
Click here to see the insides of a typical Gauge or Return to the Main Gauge Page
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