The differences between type A, B, C and D jumbo (FIBC) fabric bags – P2

In previous part, we had learned about  type A & B jumbo (FIBC) fabric bags for structure, uses and cautions. And today, Trung Kien JSC will introduce to you two remaining kinds of FIBC fabric bags as type C and D.

The difference between types  A, B, C and D of Jumbo fabric bags (continued)

FIBC fabric bags type C

Structure: They are made from non-conductive polypropylene (PP) fabrics interwoven with conducting threads, normally sewn in a grid pattern. That connect the bag to ground via a grounding point. The connection to ground or earth during filling and discharging is critical to the safe use of type C FIBC fabric bags. As with any manual operation, ensuring interconnection and grounding of this type is subject to human error.

Bao jumbo loại C, fibc fabric bags type C - Trung Kien JSC

Illustrating about FIBC fabric bags type C.

Usage: Safely transport flammable powders.

Safely when flammable solvents or gases are present around the bulk bags

Caution: DO NOT USE when ground connection is not present or has become damaged.

FIBC fabric bags type D

Structure: These types are made from antistatic and static dissipative fabrics designed to safely prevent the occurrence of incendiary sparks, brush discharges and propagating brush discharges without the need for a connection from the bulk bag to ground. FIBC fabric bags type D can be used to safely package combustible products and to handle products in combustible and flammable environments.

Usage: Safely transport flammable powders.

Safely when flammable solvents or gases are present around the bag.

FIBC bags type d, bao jumo loại D - Trung Kien JSC

Illustrating about FIBC fabric bags type D.

Caution: DO NOT USE when the jumbo fabric bags type D surface is contaminated or covered with conductive materials, such as water or grease.

In summary, we’ll epitomize  the conditions and environments in which type A, B, C & D FIBC fabric bags can be used in the following table:

Bulk Product: MIE (Minimum Ignition Energy) of Dust Non-Flammable Atmosphere Explosive Dust Atmosphere Explosive Gas and Vapor Atmosphere
MIE > 1000 mJ (mega Joules) A,B,C,D B,C*,D C*,D
1000 mJ ≥ MIE > 3 mJ B,C,D B,C*,D C*,D
MIE ≤ 3 mJ C,D C*,D C*,D

* Type C FIBCs are safe to use under these conditions ONLY IF PROPERLY GROUNDED.

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