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The STC4131 Automatic Door Bottom is a high-performance solution for acoustic openings. It has been independently tested and meets ANSI standards for acoustical performance. The door bottom features a smooth action positive seal mechanism and is easy to install.
Independent testing has shown that the STC Series Automatic Door Bottom has "sealed-in-place" type performance
Meets ANSI Standard S12.60-2002, Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools
Smoother action positive seal mechanism: Aluminum case encloses a movable drop-bar seal actuated by a jamb-contacting plunger during door closure, providing an effective seal
Drop-bar seal actuation mechanism (all models) ensures hinge-side actuation, preventing seal skidding and door hang up during closure
End plate kits are included. Replacement part is K4133C or K4133D
Certifications:
GREENGUARD Gold Certified
UL 1784 - Standard for Air Leakage Tests of Door Assemblies and Other Opening Protectives
Environmental Product Declaration (EPD)
UL 10C - Standard for Positive Pressure Fire Tests of Door Assemblies
ASTM E-283-04 (2012)
ASTM E 90-2009
ANSI/BHMA A156.22 Door Gasketing and Edge Seal Systems
See more about Pemko STC4131 Acoustic Automatic Door Bottom here