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Pemko 4131BSPRL Fire-Rated Surface or Semi Mortised Automatic Door Bottom, Black Suede Powder Coat, Black Sponge EPDM Insert, 3/4" Max Drop
Pemko 4131BSPRL Fire-Rated Surface and Semi Mortised Auto Door Bottom, Black Suede Powder Coat, Black Sponge EPDM Insert, 3/4" Max Drop
Lead Time:
36" Length - 0-2 Days
42" or 48" Length - 2-3 Weeks
Pemko 4131BSPRL Fire-Rated Automatic Door Bottom | Sponge Neoprene Insert
The Pemko 4131BSPRL Fire-Rated Automatic Door Bottom is a heavy-duty, versatile sealing solution designed for high-traffic commercial and industrial environments. This unique model offers the flexibility of either surface-applied or semi-mortise installation, making it a go-to choice for facility managers and contractors who need to upgrade existing wood or hollow metal doors without full disassembly.
Equipped with a premium Sponge Neoprene insert, the 4131 Series creates a slightly compressible, airtight barrier. This resilient material remains highly flexible in both extreme heat and cold while resisting deterioration from oily substances. When the door closes, the jamb-actuated plunger triggers a "smoother action" positive seal, dropping the gasket to effectively block out drafts, sound, moisture, and smoke.
Key Features & Performance
- Dual-Mount Versatility: Can be installed as a surface-applied unit on the face of the door or as a semi-mortise application for a lower profile, making it compatible with a wide range of door types.
- Sponge Neoprene Seal: Features a durable, slightly compressible rubber insert that provides a superior seal against uneven thresholds and resists harsh cleaning chemicals.
- Non-Handed Design: Reversible for easy installation on both left and right-hand doors, simplifying the mounting process on-site.
- Hinge-Side Actuation: The drop-bar mechanism ensures the seal lowers straight down upon closure, preventing "seal skidding" and ensuring a longer life for both the seal and your flooring.
- Superior Gap Coverage: Engineered to fill under-door gaps up to 3/4", significantly reducing air infiltration and sound transmission (ASTM E 90-2009).
- Field Trimmable: Provided at NET length and can be trimmed by up to 2" in the field to ensure a perfect, custom fit for your specific door width.
Technical Details & Certifications
- Base Material: High-grade Aluminum Casing.
- Dimensions: 19/32" Width x 1 27/32" Overall Height.
- Fasteners: Includes thru bolts and #8 x 1 1/4" THSMS for a robust, permanent attachment.
- UL 10C Fire Rated: Certified for Positive Pressure Fire Tests, making it a critical component for fire-rated door assemblies.
- UL 1784 Smoke Inspected: Meets rigorous air leakage standards for smoke-protective openings in hospitals, hotels, and schools.
- GREENGUARD Gold Certified: Verified for low chemical emissions to promote healthier indoor air quality.
- Standards Compliance: Meets ANSI/BHMA A156.22 and ASTM E-283-04 for architectural gasketing and edge seal systems.
| Length | 36 Inch or 42 Inch or 48 Inch |
| Brand | Pemko |
| Insert Material | Neoprene |
| Fire Rated | Fire Rated |
| Mounting Type | Surface Mounted |
| Bottom Weatherseal Type | Automatic Door Bottom |
| Housing Finish | Black Suede Powder Coat |
| Sweeps, Door Bottom or Rain Drip | Door Bottom |
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