Newsletter
RSS Feeds
| << Return to Previous Page Lead Pot and Dross Hood  Text Version Lead Pot and Dross Hood Lead pot with dross pot and hood. Keep work openings as small as practical. Doors advisable. Door for dross pan removable. Design Criteria: Q = 100 - 200 cfm/ft2 of opening plus volume of products of combustion.* Duct velocity = 2,000 - 3,500 fpm for fume only. Duct velocity = 4,200 - 4,500 fpm for transport of dust and fume.** Entry loss = 0.50 VP * Correct for temperature ** For horizontal runs, transport velocity is necessary. Note: Separate flue required if combustion gases are not vented through the hoods. |
Scheduled Maintenance - President's Day Weekend
The U.S. Department of Labor will be conducting scheduled system maintenance beginning Friday, Feb. 15 at 5 p.m. ET through Tuesday, Feb. 19 at 8 a.m. ET. Some pages may be temporarily unavailable. To report an emergency, file a complaint with OSHA, or to ask a safety and health question, call 1-800-321-6742 (OSHA).