Gate Systems 24x48 Standard (A71)

westinghouse air brake tech Gate Systems 24x48 Standard (A71)

The A71 outlet gate is commonly referred to in the industry as a 13” x 42” DDG gate.  With an opening size of 24” x 48” this gate is available in both a 32 or 64 bolt hole pattern, while bolting to a 13” x 42” nominal bolting flange.  Typically ATP recommends this gate to convert pneumatically unloaded plastic pellet cars to a gravity unloading process for DDG service.  Along with the standard AEROgate features, additional options are available.
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Recommended Commodities:

  • DDG
  • Light, clumping commoditie

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  • Bronze Glide Rails:
        - Drastically Reduces Doorplate Wear
        - Contributes to a Lower Operating Torque
  • Automatic Overhead Inertia Lock
  • High Endurance UHMW Wiper Seals
  • No Ledges or Areas for Commodity to Build Up
  • Countersunk Seal Bolts in Gate Hopper:
        - Allow Smooth Commodity Flow over Hopper Surfaces
        - Simplifies the Hopper Cleaning Process with No Surface Restrictions.

Patent Numbers:U.S. 7,171,907 B2U.S. 7,367,271 B2
Additional Options: 

  • 32 or 64 Bolt Hole Patterns
  • Various Powder Coat Options and Colors including but not limited to:
        - BRN – Brown (Federal Standards Color Code: 10076)
        - GRY – Medium Grey (Federal Standards Color Code: 26314) ATP Standard Stocked Color
        - TGY – Tan/Grey (Federal Standards Color Code: 26559)
        - TAN – Tan(Federal Standards Color Code: 13711)
        - CGY – Light Grey

Technical Specifications:

  • Industry Size Reference:  24” x 48”
  • Bolt-On Working Points: 27-1/4” x 62-7/8”
  • Actual Gate Opening Size: 24” x 48”
  • Bottom Frame Opening: 27-1/2” x 52”
  • Overall Gate Height: 10-1/2”
  • Number of Bolt Holes: 32 or 64 Holes
  • Weight: 533 lbs.
  • Centerline of Gate to End of Open Door Plate: 45-1/2”