Profile: McWane Cast Iron Pipe is a manufacturer of iron pipes. We produce base for clean drinking water and sanitation pipes, fittings and infrastructure products. Our products are categorized into five business groups that include the ductile iron pipe group, the valve and hydrant group, the plumbing group, the waterworks fittings group & the steel fabrication group. Our iron pipes are strong enough to lie beneath foundations and resistant to expansion & contraction caused by extreme temperatures.