5552 manual ductile iron butterfly valve products are offered for sale by suppliers on Alibaba.com, of which butterfly valves accounts for 84%, valves(old) accounts for 3%, and check valves accounts for 3%.
A wide variety of manual ductile iron butterfly valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, alloy and aluminum alloy manual ductile iron butterfly valve,as well as from black, silver, and red manual ductile iron butterfly valve, and whether manual ductile iron butterfly valve is air vent, ball float, or center line.