Shand & Jurs vertical and horizontal Deflagration Flame Arresters are designed to provide a positive flame stop in hori-zontal gas piping systems containing flammable vapors having a low flashpoint. The units not only provide protection against propagation of fire, but also offer maximum flow capacity. They are designed with taps to accommodate temperature-monitoring devices to activate a quick closing valve when a flame is detected. 708-236-6000; www.sandj.com; Booth 2608.