Valveco Duo Check Valves from HMA Flow & Industrial have a wafer body style that fits between table E flanges, and are FBE coated internally and externally. Features include upper and lower PTFE thrust washers, a resilient Buna-N or EPDM seat, and 316 Grade stainless steel discs, springs, and shafts.

Valveco Duo Check Valves from HMA Flow & Industrial give maximum strength, with minimum opening time. Torsion springs assist valve closure, preventing flow reversal. Thrust washers reduce fiction and wear on valve plate hinges.