Mueller Steam Specialty manufactures a variety of wafer-style valves including butterfly valves, cast iron butterfly valves, Class 125 cast iron check valves, ductile iron butterfly valves, and silent check valves. The wafer silent check valves are available in Class 150, Class 300, and Class 600 cast stainless steel or cast carbon steel; along with Class 150 or Class 300 bronze.

Apollo Valves manufactures wafer-style butterfly valves in 2" to 24" sizes (DN 50 to DN 600). The valves feature ductile iron bodies.