Pemko 434APKL Full Mortised Automatic Door Bottom | PemkoPrene Insert
The Pemko 434APKL Full Mortised Automatic Door Bottom is the ultimate architectural solution for high-performance sealing without compromising door aesthetics. Specifically designed for high-end wood and metal doors, this heavy-duty unit is fully mortised into the bottom of the door, remaining completely hidden while providing an elite barrier against air, light, sound, and smoke.
Equipped with a high-quality PemkoPrene insert, the 434 Series is engineered for durability and resilience. It features a specialized low closing force mechanism, making it an ideal choice for projects that must meet ADA and ANSI A117.1 accessibility requirements. The drop-down bar is actuated by a jamb-contacting plunger, ensuring a tight, positive seal only when the door is fully latched.
Key Features & Performance
- Concealed Full Mortise Application: Seamlessly integrates into the door for a clean, flush aesthetic—preferred for luxury hotels, upscale condos, and modern commercial offices.
- PemkoPrene™ Synthetic Rubber Seal: A high-performance thermoplastic elastomer that offers the flexibility of natural rubber with superior resistance to disinfectants and cleaning fluids.
- Low Closing Force Mechanism: Designed for ease of use, ensuring the door remains easy to open and close while satisfying ADAAG 2010 accessibility standards.
- Hinge-Side Actuation: The drop-bar mechanism ensures the seal lowers straight down, preventing "seal skidding" and protecting your flooring from wear.
- Customizable Fit: Provided at NET length and is field-trimmable by up to 2" to ensure a precision fit for your specific door opening.
Technical Details & Certifications
- Base Material: Durable Mill Finish Aluminum Casing.
- Dimensions: 27/32" Width x 1 5/16" Height.
- Gap Coverage: Effectively seals under-door gaps up to 3/4".
- Fasteners: Includes thru bolts and #6 x 5/8" FHSMS for a secure, permanent installation.
- UL 10C & UL 1784: Fire-rated for positive pressure and smoke-inspected for life-safety compliance.
- Acoustic Performance: Tested to ASTM E 90-2009 to ensure significant sound transmission reduction.
- Environmental Safety: GREENGUARD Gold Certified for low chemical emissions and improved indoor air quality.
- Standard Compliance: Meets ANSI/BHMA A156.22 for door gasketing and edge seal systems.
| Length | 36 Inch or 42 Inch or 48 Inch |
| Brand | Pemko |
| Insert Material | PemkoPrene |
| Fire Rated | Fire Rated |
| Mounting Type | Full Mortise |
| Bottom Weatherseal Type | Automatic Door Bottom |
| Housing Finish | Aluminum |
| Sweeps, Door Bottom or Rain Drip | Door Bottom |
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