The EnerG rubber seated ball valve from Val-Matic Valve & Manufacturing Corp. has a self-flushing contoured ball design that complies with AWWA C507. The Tri-Loc seat retention system provides a low-friction, wear-resistant seat that allows for adjustment or replacement without removing the valve from the line. When fully open, the valve provides 100 percent flow area. 630/941-7600; www.valmatic.com.