Emergency shutdown systems are lifesavers, literally and figuratively. An emergency shutdown system is designed to automatically respond to crisis conditions in order to prevent or contain the failure of a system. Different kinds of equipment that involve the use of emergency shutdown systems tend to have a few things in common. First, they all tend to be expensive, and their emergency shutdown systems are designed so that an error and the consequences of that error can be contained so as to limit damage to the system. Many varieties of equipment that involve the use of emergency shutdowns are in some way related to the safety of people, and emergency shutdowns are engaged when it is indicated that a piece of equipment threatens safety in some way.
Because different kinds of equipment that involve the use of emergency shutdowns tend to share one or more of these characteristics, it’s clear that emergency shutdowns are very valuable tools. They vary greatly in terms of their configuration from one model to the next. Many varieties involve the use of pressure switches. Pressure switches are devices that are used to measure and control pressure within an enclosed area. They work by responding to a pressure change, either by sending an electrical signal to control equipment or through direct, mechanical means. Pressure switches, because of their ability to read and control pressure levels, are integral parts of many emergency shutdown systems, especially in the context of pressurized hazardous fluids. They can respond at near-instantaneous speeds to crisis conditions in a pressurized enclosure in a number of ways, the most common of which is controlling flow and preventing the movement of hazardous materials until the crisis situation is resolved. Because they are used in many emergency shutdown contexts, pressure switches are very valuable utilities in a wide variety of contexts.