Apollo develops butterfly valves in a lug body and wafer body. Lug style in ductile iron material include the 143 series and the LD141 with a size range from 2 to 24 inches. Similarly the wafer style in ductile iron material includes the 141 series and WD141 series in a size range from 2 to 24 inches.

Mueller Steam Specialty distributes butterfly valves in a grooved, wafer and lug style. Lug types are also offered in full lug, semi-lug and ductile iron full lug. The wafer designs are also offered in ductile iron. Full flanged butterfly valves are also offered in cast carbon steel or stainless steel.