40-150 CFM Pre-engineered SX Packages are a versatile and readily available system for any industrial vacuum need. The SX Packages come as either once-through or recirculated packages with the accessories already mounted and piped for ease of installation. Built with Nash patented gas scavenging, to increase high vacuum performance, they are available from 40 to 150 ACFM (70-250 m3/hr), suitable for operation to 29" HgV (31 mbar abs), and are available in cast iron construction.