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What is the normal pressure gauge?
 Feb 07, 2023|View:280

What is the normal pressure gauge? Pressure gauges come in a variety of styles, common ones being Bourdon tubes and bellow gauges. Different types of pipes, different sizes and different materials will lead to different pressure ranges measured by the pressure gauge. Here to explain what is the normal pressure gauge?

What is the normal pressure gauge?

Pressure gauge is a fluid strength measuring device. Pressure gauges are required for setting and adjusting fluid power machines and are indispensable in troubleshooting. Without pressure gauges, hydrodynamic systems become unpredictable and unreliable. Gauges help ensure that there are no leaks or pressure changes that could affect the health of the hydraulic system.

The hydraulic system is designed to operate within a set pressure range, so the gauge rating must be appropriate for that range. Hydraulic pressure gauges can be used to measure up to 10,000 psi, but maximum hydraulic pressure is usually in the 3,000 to 5,000 psi range. Hydraulic gauges are usually installed at or near the pump pressure port to indicate system pressure, but can also be installed anywhere on the machine where pressure needs to be monitored - especially if the sub-loop is operating at a different pressure rate than the pump pressure, such as behind a pressure reducing valve. Typically, pressure relief valves have an accessible meter port that allows you to directly monitor their downstream pressure Settings.

Pressure gauges have been used in hydrodynamic systems for over a hundred years, so it may come as a surprise that gauge designs have evolved. The development of pressure gauges for hydrodynamic applications is, in general, an increase in application-specific functions. For example, pressure gauges are now more routinely designed with hydraulically friendly pressure connections (e.g. SAE/ metric straight thread) to prevent leakage from the system. Analog gauges with custom scales are more common, and digital gauges with customizable firmware allow process measurements for pressure-based leakage measurements or other parameters such as torque, load, force, and hardness.

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