Pressure Gauges

Pressure gauges are analogue or digital instruments used to measure the pressure or vacuum within a fluid power system. Gauges are installed at any point within a machine where the pressure needs to be measured. By monitoring pressure levels at various points within a machine or process, you can prevent damage, downtime, and safety hazards caused by spikes in pressure.

They are indispensable tools found in a wide array of applications and industries. In industrial settings, pressure gauges play a critical role in monitoring processes, preventing equipment failure, and ensuring compliance with safety regulations. In everyday applications, such as tyre pressure monitoring, accurate pressure readings contribute to vehicle safety and optimal performance. Choosing the right pressure gauge and ensuring its accuracy is essential for maintaining a safe and productive environment.

Types of Pressure Gauges

RS NZ offers a wide range of pressure meters, including digital pressure gauges and analogue pressure gauges, to meet diverse needs and industry standards.

Analogue Pressure Gauges

This type of gauge displays a pressure measurement on a dial. The needle is controlled by a spring or a tube that changes according to the pressure. It is important to ensure that your dial can read the pressure range within your system. Some pressure gauges can read up to 5000 psi or 7500 psi. The pressure scale range is also measured in "bar".

Digital Pressure Gauges

This type of gauge uses microprocessors and sensors to display pressure readings on an integrated digital output display. Digital pressure gauges are ideal for low pressures due to resolution scales ranging from 0.001 to 0.01. Digital pressure gauges are typically bottom entry and come in various diameters. These gauges can be used for hydraulic pressure and pneumatic pressure.

Ensure Accuracy with Calibration

Calibration of your pressure gauge will ensure the instrument is operating correctly and within the manufacturer's specifications. Calibrated gauges will measure within the desired range and provide accurate readings.

Other things to consider when choosing a pressure meter include the operating temperature and the accuracy of the reading. Most gauges are mounted on a threaded connection, such as G 1/4, BSP 3/8 or NPT 1/2.

Materials Used in Pressure Gauges

Most standard pressure gauges are made from stainless steel or brass. However, there are lightweight alternatives such as plastic or aluminium options.

Applications of Digital Pressure Gauge

Pressure gauges are used in a wide range of industrial applications where it is necessary to measure whether the pressure is within normal limits. Some of the most common are:

• Air Conditioning Systems: Digital pressure gauges are used in air conditioning systems to monitor refrigerant pressure, ensuring optimal system performance and preventing potential leaks or malfunctions.
• Heating Systems: In heating systems, digital pressure gauges monitor water or gas pressure to ensure safe and efficient operation and identify potential pressure drops or leaks, preventing damage to the system and ensuring consistent heating.
• Compressors: In various industrial and commercial settings, digital pressure gauges provide the precise readings needed to prevent damage, ensure efficient operation, and maintain safety.
• Medical Engineering: Digital pressure gauges play a vital role in applications such as respiratory ventilators, blood pressure monitors, and infusion pumps, where accurate readings are directly linked to patient safety and treatment effectiveness.
• Operating Machinery: To prevent equipment failure, optimise performance, and ensure safe operation, various types of operating machinery rely on pressure monitoring. Digital pressure gauges provide accurate pressure readings in hydraulic systems, pneumatic systems, and manufacturing equipment.
• Hydraulics Systems: Across diverse industries like construction, manufacturing, and transportation, digital pressure gauges help maintain system efficiency, prevent leaks, and ensure the safe operation of hydraulic equipment.

Choose the Right Pressure Gauge for Your System Today!

As a trusted supplier and distributor of pressure measurement solutions, RS NZ offers an extensive range of highly accurate pressure gauges from leading brands, including Bourdon, Fluke, WIKA, Druck, and of course, RS PRO. Whether you need a pressure meter for industrial processes, a digital pressure gauge for specialised applications, or a Parker pressure gauge for reliable performance, we have the expertise and selection to help you find the perfect fit.

Don't compromise on accuracy or reliability. Explore our range of pressure gauges today and ensure precise pressure monitoring for your systems.

Ordering & Delivery Information for NZ

RS NZ offers a seamless online ordering process for all your pressure gauge needs and other items like thermocouples and thermostats. Simply browse our selection, choose the right product for your application, and proceed to checkout. We offer various payment options for your convenience.

We also provide fast and reliable delivery throughout NZ. For more details on delivery services and fees, please refer to our Delivery page.