The Bajolock coupling from Smith Flow Control automatically catches any dangerous residual pressure and safely discharges it away from the worker. When no potentially harmful pressure exists, the coupling can be operated normally with a twist. Designed for use in transfer systems for pressure up to 145 psi, the stainless steel coupling is manufactured according to the European Pressure Equipment Directive and CE approved. 859/578-2395; www.smithflowcontrol.com.