Different Types Of Pressure Gauges And Their Applications

Update:03 Sep 2018

Pressure gauges have been used in fluid power systems f […]

Pressure gauges have been used in fluid power systems for well over a hundred years. A pressure gauge is a fluid intensity measurement device. Pressure gauges are required for the set-up and tuning of fluid power machines, and are indispensable in troubleshooting them.


Without pressure gauges, fluid power systems would be both unpredictable and unreliable. Gauges help to ensure there are no leaks or pressure changes that could affect the operating condition of the hydraulic system. Here we'll introduce different types of pressure gauges.


Pneumatic or Air Pressure Gauges

These pressure gauges are specifically designed to measure the air content in an object during an operation. For example, a container such as a tire. To fill an appropriate and desired amount of air in the tire so as to receive an optimum performance, pneumatic pressure gauges are used to ensure this act.


Parallel Bourdon Tube Differential Gauge

In this type of gauge, the pinions and gears are designed to calibrate the difference between the translation to a single pointer and the flex of the two Bourdon tubes.


Hydraulic Pressure Gauges

Hydraulic pressure gauges are just ideal for recording and measuring hydraulic tool pressures. Moreover they are used to measure mechanical vibrations and pressure pulses present in the environment or required in certain applications. Gauges are equipped with specific liquid like glycerin, so that the movement of the pointer doles out to be much smoother and quicker.


Digital Pressure Gauges

Digital pressure gauges convert differential, hydraulic or pneumatic pressures into signals that exhibits numerical displays. These pressure gauges are better in accuracy, performance, size and readability and are widely used anywhere in any application necessary.


General-Purpose Bourdon Tube Gauge

This type of gauge employs a C-Bourdon tube in its built. The C-Bourdon tube is at an arc of 250 degrees, with a sealed tip end and process pressure attached to a fixed socket end. There are gears and pinion movement inside the tube that controls the response of the pointer on the dial. This general-purpose Bourdon tube is mainly used in applications which has high-pressure measurements.


Capsule-Type Gauge

When two pre-formed plates are welded together, a capsule-type gauge is formed. The expansion and contraction of the capsule gauge takes place because of the input process pressures. It's also due to these pressure gauges which translates the direction of the pointer via pinions and gears. The area of application of these instruments is on an intermediate level.


Duplex Gauge

Duplex, means there are two Bourdon tubes fixed inside the gauge casing giving two separate readings. It also suggests two related pressures in an operation.


Differential Gauges

Apart from the differences in terms of two related pressures, Differential gauges are more like Duplex gauges. Differential gauges consists of two entrance ports each of which are connected to the monitored pressure capacities. So rather than having two pressure gauges checked to calculate the difference, its best to use a differential gauge system to read the pressure differences within two points. Differential gauges are implemented in applications like HVAC, filter conditions and so on.


Piston Differential Gauge

Piston differential gauge is a diaphragm spring-based system that moves in linear movements in between the two basic pressures. The pointer location in this gauge, it is situated at the end of the magnet rotary shaft. So the gauge takes all the readings in proportion to the differential pressures. Its area of application is pretty versatile. It can be used in high-pressure processes as well as for small values.


Tire Pressure Gauge

Tire pressure gauges are categorized into three different types of gauges namely; stick gauges, digital tire pressure gauges and tire pressure gauges. The principal of all the three remains the same, what differs is their display, size and looks.


Shunhao provides high quality pressure gauge cases for every types of gauge now. Stay tuned at our site for more industry news.

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