New and improved Exkop explosion isolation system is available for more applications than previous versions, such as ST 2 dusts, reduced explosion pressures (Pred) of up to 2 bar and larger pipeline diameters. System’s new Exkop Express controller also allows for greater connectivity to process safety systems. System consists of a control panel, triggering devices and one more fast-acting isolation devices. In the event of an explosion detection by either infrared optical sensor or pressure switch signals, the controller activates the connected explosion isolation systems such as the Rembe QV II or QV III quench valves or Q-Bic chemical extinguishing barrier in one or multiple pipes. The Q-Bic system can protect large-diameter pipes, and the hygienic interface is compatible with sanitary food applications such as spray dryers and pneumatic conveying.