Conventional woven fiberglass filter media installed in lines 2-4. Poor cake release lending to increased pulse frequency has caused numerous bag failures and increased compressed air usage. These problems have occurred in as little as 3,000 operating hours.
GORE® membrane/Teflon® B fiberglass fabric filter bags installed in line 1 have outperformed all other filter media to date. Due to the outstanding performance of line 1, lines 3 & 4 have been retrofitted with GORE® membrane/Teflon® B fiberglass fabric filter bags.
Emission measurements in February 1987 were 0.0004 gr/cf for line 1. The outlet rate was 2.5 times less than any other lines. (Measurements were performed after 9,200 operating hours/17 months.) Cost savings in compressed air usage have been substantial. GORE® membrane filter bags are pulsed at 57 psig every 15-30 minutes (load conditioned) as compared to every 5 seconds for lines 2-4. Pulse cleaning is by demand. The maximum DP for line 1 is 6.3-7.0" w.g.
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations