TRIMPAC® Model B-1 and B-1B is a factory assembled trim package with an electric 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-1 and B-1B provides access doors for the emergency release (B.1) and alarm test valve (B.7) for manual operation of these trim valves. TRIMPAC® Model B-1 and B-1B is equipped with priming water pressure and water supply gauge view-ports for easy monitoring of water pressures.