Dura-Flo Series of inverted bucket mechanical steam traps from Nicholson are used on steam lines, process equipment, steam cookers, steam-heated vats, oil preheaters and other equipment. They are made from heavy-walled cast iron bodies with hardened stainless steel valves and seats that provide corrosion resistance. A stainless steel bucket is designed to minimize the effects of water hammer. They are available in sizes from 1⁄2-in. to 21⁄2-in. NPT for pressures to 250 psig and temperatures to 450