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Dunnage Direct » PPPPD by AAR

PPPPD by AAR

Product Performance Profile for Pneumatic Dunnage (PPPPD)

Association of American Railroad

Product Performance Profile for Pneumatic Dunnage
  • General Information Bulletin No. 9
  • Effective July 1, 2005
  • Replace K,AAR Pamphlet #14

Product Performance Profile for Pneumatic Dunnage
  • Level 1: Pneumatic dunnage used as lateral (crosswire) void filler (Intermodal)
  • Levels 2-4: Pneumatic dunnage used as lengthwise void fillers in flat platen type applications (Boxcar)
  • Level 5: Pneumatic dunnage used as lengthwise void fillers in horizontal application between concave surfaces (Boxcar)

Product Performance Profile for Pneumatic Dunnage

 

Dunnage Air Bag Type

Maximum useable inflation pressure

Maximum load in pounds

Maximum testing pressure & void size

Level 1

2 Ply

2.5 PSI

40,000 lbs max per load

8 PSI

Level 2

4 Ply

5PSI

Less than 75,000 lbs in a railcar

17 PSI

Level 3

6 Ply Medium Polywoven         (5.2 oz sq/ft)

8 PSI

Between 75,000 and 160,000 lbs in a railcar

25 PSI

Level 4

8 Ply Heavy Polywoven (6.8 oz sq/ft)

10 PSI

Between 160,000 and 205,000 lbs in a railcar

30 PSI

Level 5

Heavy Polywoven (8.5 oz sq/ft)

10 PSI

Between 160,000 and 205,000 lbs in a railcar

21 PSI (18" Void Horizontal)
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