泄压装置通常需要比其他工艺装置更频繁的检查和维护。通过提供隔离，可以在设备保持运行的情况下移除设备。然而，隔离会带来压力系统与其泄压装置意外断开的风险；因此，这种隔离需要严格控制。本出版物提供了隔离系统的设计、安装、管理和操作指南，确定了需要考虑的关键点。 这是EEMUA出版物188《确定安全阀运行周期指南》的配套卷。

In order to permit their removal and replacement without plant shutdown, pressure relieving devices may need to be isolated from the equipment they protect. However, the installation of isolating valves around protective devices is potentially hazardous as it introduces the risk of a system being left unprotected against over-pressure due to the relief path being inadvertently closed off. Existing standards offer little or no detailed guidance in this area.EEMUA Publication 184 plugs the gap by expanding on the guidance given in API RP 520 Part II and incorporating EEMUA Information Sheet 50 - The Importance of isolation management around relief systems. It outlines the case for using relief valves as a layer of protection, gives advice on managing safe isolation and stresses the importance of safe de-isolation after completion of relief system work. EEMUA 184 provides several examples in loss prevention history where the failure to adequately manage relief system isolations has been a major factor in causing process safety incidents.It is essential to conform to local statutory legislation or regulations in relation to the use, and isolation of, relief devices. In some countries, conformance to certain standards and codes may be a mandatory requirement and specific standards, such as those pertaining to boilers, may specifically prohibit the installation of isolation devices.