Dry Type Dust Collectors Discharge Valves (Part 2)

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Dry Type Dust Collector Discharge Valves (Part 2):
  1. Trickle valve with hopper and curtain- For continuous removal of collected dust where hopper is under negative pressure. Curtain is kept closed by pressure differential until collected material builds up to sufficient height to overcome pressure.
  2. Rotary lock with hopper, rotary valve and drive - Motor driven multiple blade rotary valve provide air lock while continuously dumping collected material. Can be used with hoppers under either positive or negative pressure. Flanged for connection to dust disposal chute.
  3. Double dump valve with gate - Motor driven, double gate valve for continuous removal of collected dust. Gates are sequenced so only on is open at a time in order to provide air seal. Flanged for connection to dust disposal chute.
From American Conference of Governmental Industrial Hygienists (ACGIH®), Figure 4-3, Industrial Ventilation : A Manual of Recommended Practice, 23rd Edition. Copyright 1998. Reprinted with permission.