Rusco (AFV) Auto Flush ValveRusco Rusco (AFV) Auto Flush Valve Automated sediment purging for high load applications where manual flushing isn't practical Adjustable Cycle Timer 200 PSI Rated Brass Construction NEMA 4 Enclosure The Rusco AFV is designed for installations where sediment loads are high enough to require frequent manual flushingwell water, agricultural systems, industrial feeds. It automates the purge cycle on a timer you set anywhere from 5 minutes to 24 hours,