TRIMPAC® Model B-5 & B-5B is a factory assembled trim package for a double interlocked preaction system with an electric/pneumatic release module in a metal enclosure. The standard trim normally required on a deluge valve has been moved to a single cabinet. TRIMPAC® Model B-5 & B-5B provides access doors for the emergency release (B1) and alarm test valve (B7) for manual operation of these trim valves. TRIMPAC® Model B-5 & B-5B is equipped with priming water pressure and water supply gauge view-ports for easy monitoring of water pressures.