Document peyjXgYXrvk34zr6wBaZ6m866

CC: S. W. Ellis R. W. Fori oi nes S. H. Markette January 19, 1983 TO: 0. N. DANIELSON FROM: C. M. BECK ROLLAWAY PORTABLE DUST COLLECTOR: BIANNUAL CHECK The air intake velocity of the Tepco Model 21 Rollaway dust collector in Central Shops was checked on January 17. Ten measurements were taken at the face of the cone using the Alnor Thermo Anemometer, Type 8500. The table below compares measured results with manufacturer specifications: Air Volume Area of Cone Area of Duct Duct Velocity Cone Face Velocity Spec 686 cfm 3500 fpm Measured 663.39 cfm .687 sq. ft. .196 sq . ft. 3399.95 fpm 970 fpm The collector is performing very close to manufacturer specifications. DUP 0814682 009964