BH904

Description:

Single action spring hinges, for self closing single action doors.

Technical Details:

  • Wooden or metal doors with wood or metal frames
  • Door Dimensions: Refer our hinge selection chart to a certain suitability to various door dimensions
  • Material: Stainless Steel
  • Knuckles: 3
  • Bearing: 2 Anti Friction Ball Bearing
  • Finish: 630 ,626 (other finishes available upon request)
  • Options: Flush tips only

Guidelines on use of Spring Hinges:

  • Maximum doors size 3,0” x 7,0” x 914 ( ”4/3 1mm x 2134mm x 44mm)
  • NFPA requires the use of 2 spring hinges on Fire Rated Doors
  • Up to 70 lbs (32 kg) Door: 1 spring hinge with 2 ball bearing hinges. The spring hinge should be in the center location
  • Up to 90 lbs (41 kg) Doors: 2 spring hinges with 1 ball bearing hinges. The 2 spring hinges should be in the center and bottom locations
  • Up to 120 lbs (55 kg) Doors: 3 spring hinges

Please check the main Door Hinges page for How to Order instructions 

Options
H” W” Gauge of
metal in mm
Ball
bearings
4.5” 4.5” 3.4”   2 Concealed AFBB

 

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