From chemical basis to specialized chemical units, ONIS quick piping solutions are used as different manners. Frequently submitted to very severe design conditions in terms of pressure and temperature for syngas productions (fertilizer, methanol catalyst production units…) ONIS permits to limit the duration of the planned or unplanned shutdowns. As well as a very safety equipment which guarantees the tightness of positive isolation and consequently the environment of harmful or lethal products, the payback can be also optimized in batch process units as HCN, PVC or catalyst production plants. In this kind of industries some ONIS devices are motorized and can be fully automated in order to limit operators’ time exposure. All ONIS piping solutions are involved in chemical industries: Quick action line blinds, Quick action Filter changer and Quick Action Rupture disc changer. Concerned media: all chemicals products.