scope:

These standards cover the sanitary aspects of bag collectors for the dry filter entrapment and collection of particulates of dry food products from air exhausted from spray drying systems, instantizing systems, or other dry product systems beginning at the flanges or junctions of the product/air inlets of the bag collector and terminating at the flanges or junctions of the air exhaust and product outlets.

With respect to pressurized air, the bag collector starts at the air inlet to the pressurized air reservoir, or, in the case of an internal pressurized air receiver, it shall start at the air inlet to the bag collector.

With respect to processing air, if provided, the bag collector starts at the flange or junction of the processing air inlet(s).

If the bag collector is designed for mechanical cleaning, these standards include the cleaning solution pipelines, valves, and associated components integral to the bag collector.

These standards also include materials and fabrication criteria appropriate for bag collectors:

a. to be cleaned by a variety of methods and with different degrees of prior disassembly.

b. which have optional integral fluid bed components.

These standards do not include equipment mounted upstream from inlet flanges or junctions or downstream from the outlet flanges or junctions, including but not limited to product outlet valves, isolation valves, air ducting, fans, and blowers.

In order to conform to these 3-A Sanitary Standards, bag collectors shall conform to the following design, material, and fabrication criteria, and the applicable documents referenced herein.¹

¹ Use current revisions or editions of all referenced documents cited herein.