Lead: Secondary Lead Smelter eTool
Local Exhaust Ventilation Diagrams » Hood for Cup Type Surface Grinder and Wire Brushes
Q= 25 - 60 cfm/inch diam. or width
Bronch static pressure = 7 to 14 "Hg
Slot velocity = 30,000 to 39,000 fpm
Flexible hose = 1" to 2" ID
Extension hose = Up to 8 ft long*
Peripheral speed = 6,000 tp 12,000 inear fpm
*Hose lengths may be extended up to a maximum of 50 ft by using larger sizes between the tool hose and the tubing system.
From American Conference of Governmental Industrial Hygienists (ACGIH®), Date: 10-90, Figure VS-40-02, Industrial Ventilation : A Manual of Recommended Practice, 23rd Edition. Copyright 1998. Reprinted with permission.