Diaphragm seals, also known as isolating diaphragm seals or differential pressure seals, play a crucial role in protecting pressure instruments, transmitters, and gauges from harsh, aggressive, hazardous, or high-temperature process media. These seals act as physical barriers, isolating the process fluid from the measuring instrument, thus safeguarding its integrity and accuracy. Made from various materials like stainless steel, Hastelloy, and Monel, diaphragm seals find applications in a wide range of industries, including chemical processing, oil and gas, and food and beverage. They ensure reliable and accurate pressure measurements while extending the lifespan of the connected instrument.