Armstrongs developments and improvements in refrigerated purger design and function have led to significant savings in energy, time and money. Armstrong offers three configurations to meet your individual needs: mechanical purgers, electric single-point purgers and Auto-Adaptive multipoint purgers.REFRIGERATION VALVES SOLUTIONS Armstrong introduces valve solutions for refrigeration systems. Armstrongs state-of-the-art refrigeration valves are specifically designed for use in industrial ammonia and large commercial halocarbon refrigeration systems.