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Lo-Dew Generators

Lo-Dew 501/502

AFC-Holcroft patented "Lo-Dew" gas generator produces a variety of atmospheres with analyses ranging from exothermic (101/102) to endothermic (501/502). Design of this generator is based on burning a controlled ratio of gas and air in a closed chamber. The products of combustion are cooled in the same manner as in the 101 exothermic generator. A controlled amount of hydrocarbon is then added to these cooled combustion products. The resultant mixture is passed over heated nickel catalyst, as in the 302 endothermic generator, and a special endothermic atmosphere is produced by this patented process.

With a simple valve adjustment, the versatile AFC-Holcroft "Lo-Dew" generator allows heat treatments ranging from clean annealing and sintering (where a lean mixture is required); clean hardening, carbonitriding and carburizing (an intermediate mixture); to special applications requiring extremely low dew points.

The exothermic gas is a by-product of the primary heating reaction and corresponds to the vented gas from a conventional endothermic generator. A portion of this gas is available for use wherever a lean 101 type atmosphere is needed...such as purging and/or blanketing hot oil tanks, even when the generator is producing a rich finished gas.

With the growing concern for more efficient use of natural gas, the "Lo-Dew" endothermic generator offers an important advantage over the conventional type 301/302 generators. The patented "Lo-Dew" generator produces more finished atmosphere for a given gas output.

AFC-Holcroft World Headquarters

49630 Pontiac Trail 
Wixom, MI 48393 USA 
Ph. 248-624-8191

AFC-Holcroft Europe

42, rue Émile-Boéchat 
2800 Delémont 
Ph. +41 32 475 56 16

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AFC-Holcroft Asian Operations

Unit 1912-1913, Founder Tower
No. 1122 Xin Jin Qiao Road
Pudong, Shanghai 201206, P. R. China
Ph. +86 21 5899 9100