Blog

Monitoring low-pressure processes comes with unique challenges. In industries ranging from food and beverage to wastewater treatment to liquefied natural gas (LNG) transfer, even modest changes in pressure can affect efficiency, product quality, or safety. Directly exposing instruments to these processes often leads to media buildup, corrosion, or inaccurate readings. That’s where using assemblies that combine pressure gauges, transducers, or switches with diaphragm seals or isolation rings can help. Ashcroft, a leading authority in pressure and temperature instrumentation, has decades of experience helping industries overcome these challenges. As the product lead for diaphragm seals and accessories, I help customers find the best assembly for their specific needs. Read on to learn: How different industries and instruments define “low pressure” Which assemblies work best with gauges, mechanical switches and sensor-based instruments How assemblies support applications across sanitary, industrial, utility and cryogenic environments — with LNG as a primary example When you are finished, you will know how to ensure accurate measurement and keep your operations running efficiently with the right seal or isolation ring assembly.

This article was originally published on April 3, 2023, and was updated on June 9, 2025. In chemical and petrochemical systems, or any application that requires you to measure differential pressure (DP) with high static pressure and low differential pressure, reliability and corrosion resistance are crucial for safe instrumentation operation. If your pressure measuring instruments aren’t compatible with your process, you may face equipment damage and downtime. Ashcroft has been a leader in pressure instrumentation since 1852. During that time, we have answered questions from customers about differential pressure and the measurement solutions we offer. In this article, you will get a quick overview of differential pressure and learn about two of the several differential gauges we offer, including the Ashcroft® 5503 DP Gauge and Ashcroft® F5504 DP Gauge. By comparing the similarities and differences, you can determine which may be a better solution for your specific application. You will also see additional resources that you can explore to deepen your knowledge further about differential pressure and considerations for choosing pressure gauges.

Pressure gauges can be found in virtually every industry. Depending on your application, these instruments play an important role in measuring the air, gas or liquid pressure in your system to keep it running safely and smoothly. However, for optimum efficiency, you will need to make sure the pressure range you choose for your gauge aligns with your application requirements and a few other factors. Ashcroft has been in the pressure gauge business for more than a century and a half, so following the guidelines in this article can save you time and give you confidence in your purchasing decision. Read on to learn about the factors to consider when choosing the pressure range for your gauge. Then, when you are done, we will share additional information about pressure gauge selection that you can use as a reference.

This article was originally published on October 31, 2022, and updated on February 26, 2025. If you work in oil and gas, chemical and petrochemical, or any other industry that involves high heat, your challenge is to find instruments that are designed to withstand the extreme temperature conditions of the environment and your process media. For example, pressure gauges have specific temperature ranges. If your application goes beyond the instrument's limits, you may need to add an accessory to maintain the integrity and accuracy of your gauge. As the accessories product leader at Ashcroft, part of my job involves educating customers and distributors about the options available to keep their systems running safely and efficiently. In this article, you will learn how to protect your pressure gauges from getting damaged in harsh applications. You will also see links to additional articles and resources that will help deepen your knowledge of pressure gauges and the accessories that support them.

This article was originally published on August 16, 2021, and updated on February 12, 2025. Pressure gauge accessories like snubbers, dampeners, capillaries, pressure-limiting valves, and siphons play an important role in keeping your processes running safely and efficiently. However, while these devices help ensure your pressure instruments maintain optimal performance in the most challenging applications, there is an underlying concern about their potential impact on pressure measurement accuracy. As the product manager for pressure gauges and accessories at Ashcroft - a leader in pressure and temperature instrumentation, I am often asked for reassurance that these products don't interfere with gauge performance. In this article, you will learn about the factors that can affect pressure measurement accuracy, and the accessories that help, not hinder, instrument performance.

Ashcroft, a leader in pressure and temperature instrumentation, understands that you need accurate and reliable pressure gauges to keep your operation running efficiently. We also know the importance of following industry and regulatory standards for safety. However, finding the best solution to meet your unique specifications can be completely overwhelming. We created this article to help simplify the pressure gauge selection process for you and give you confidence in your purchasing decision. When you are done reading, you will know about the primary factors to consider when selecting your pressure gauge and what steps to take in the pressure gauge ordering process.