Pemko STC4131 Semi or Full Mortise Acoustic Automatic Door Bottom

Pemko STC4131 Acoustic Automatic Door Bottom

• The acoustic automatic door bottom provides excellent performance for acoustic openings
• 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
• Helps school projects earn LEED IEQ School Specific Credits for Enhanced Acoustical Performance
• Smoother action positive seal mechanism. All Pemko automatic door bottoms consist of an aluminum case which surrounds a movable drop-bar seal. The drop-bar seal is actuated by a plunger which contacts the jamb as the door is closing, forcing the drop-bar seal down against the floor / threshold.
• Installation is fast and easy because disassembly is not required to change handing: simply flip the automatic door bottom and you’ve reversed the hand.
• The drop-bar seal actuation mechanism (all models) causes the drop-bar seal to always actuate on the hinge side first. This feature prevents the seal from skidding along the floor / threshold while the door is being closed. Door hang up will not occur.
• Pemko automatic door bottoms are provided NET length

Finishes

• STC4131CPK: C – Clear Anodized Aluminum with Black PemkoPrene insert
• STC4131BSPPK: BSP – Black Suede Powder Coat with Black PemkoPrene insert
• STC4131DPK: D – Dark Bronze Anodized Aluminum with Black PemkoPrene insert

Ratings

•  Air Infiltration Tested
•  Sound Tested – Tested to meet ASTM E 90
•  BHMA Certified
•  Smoke Tested – UL1784
•  Fire Rated – UL10C – Positive Pressure
•  Underwriters Laboratory 4L10