Single Action Spring Hinge

Description

Specification advice:

• For automatic closing, Meets codes for hotels, motels,
institutions, and commercial buildings.
• Maximum Door Sizes: As set forth in NFPA 80-2007, Section
6.4.3.1, unless specified in individual manufacturers published
listings, the maximum labeled fire door size allowed for use
with labeled self-closing spring hinges is 3’ x 7’.
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•
For 13/4” thick doors, the minimum hinge height is 41/2”. For
13/8” thick doors, the minimum hinge height is 41/2”. Where
spring hinges are used on labeled fire doors, at least two shall
be provided. All hinges or pivots used other than spring hinges
shall be of the ball bearing type. The hinges in sizes 41/2”x 4”
and 41/2” x 41/2” are approved for use on 4’x 8’ labeled doors
when a minimum of three (3) springs are used.
For doors up to 60” in height, two hinges are required. An
additional hinge is required for each additional 30” of height or
fraction thereof. Material – Steel with Steel components ANSI
K81071F.
• Also available in Grade 316 upon special request.