SENTRY shells are produced by a cold deep draw process which yields a seamless steel cylinder with a high tensile strength.Unique pre-treatment of the raw low carbon steel not only consists of a cleaning process, but also applies a special lubricant which helps keep the interior and exterior shell surfaces scratch free.. The collar and specially pre-formed bottom enclosure are MIG welded to produce a smooth, high integrity weld.4. Extinguisher shells are 100% factory air tested to a minimum of 720 psi (49.6 bar) for 5 lb, 10 lb, and 20 lb models and 375 psi (25.8 bar) for 2 1/2 lb. models.

Ansul Fire Extinguisher, Dry Chemical Extinguisher, Type A Size II, Type B/C Size II, UL Rating 4-A:80-B:C, Extinguishing Agent Sentry, Wall Hanger, 10 lb Capacity, 21 sec Discharge, 20 ft Maximum, 20-1/2 in Height, 5-1/4 in Dia, 195 psi Operating, Steel Valve, Seamless Steel Cylinder

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