Pemko 434 Full Mortise Automat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$131.40
$100.93
Pemko Pemko 434 Full Mortise Automatic Door Bottom, 36" Length PMK-434

Pemko 434 Full Mortise Automatic Door Bottom with 1/2" Drop Seal - 36" Length

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Model: 434ARL 30
$131.40
$100.93
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$131.40
$100.93
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Pemko 434 Full Mortise Automatic Door Bottom with 1/2" Drop Seal - 36" Length

Professional Automatic Door Sealing Solution

The Pemko 434 Full Mortise Automatic Door Bottom provides reliable weatherstripping and sound control for commercial door applications. This 36" length unit features a recommended 1/2" drop with maximum 3/4" drop capability, housed in a durable aluminum case with smooth-action positive seal mechanism. The ADA-compliant design meets ANSI A117.1 and ADAAG 2010 requirements with low closing force operation for accessible door applications.

Professional Features & Benefits

  • Optimal Drop Range: Recommended 1/2" drop with maximum 3/4" drop capability provides effective sealing against air, sound, and moisture infiltration.
  • Full Mortise Installation: Completely recessed mounting eliminates threshold interference and provides clean, professional appearance with ADA compliance.
  • Smooth Action Mechanism: Positive seal mechanism with plunger-actuated drop-bar ensures reliable operation and consistent sealing performance.
  • Durable Aluminum Construction: Heavy-duty aluminum case surrounds movable drop-bar seal for long-term durability in commercial applications.
  • ADA Compliant Design: Low closing force operation satisfies ANSI A117.1 and ADAAG 2010 accessibility requirements for barrier-free access.
  • Automatic Operation: Plunger contacts jamb as door closes, forcing drop-bar seal down against floor or threshold for hands-free sealing.
  • Standard Length Options: Available in 36" and 72" lengths to accommodate standard commercial door widths.
  • Proven Pemko Quality: Manufactured by ASSA ABLOY Group brand with over 70 years of weatherstripping expertise since 1952.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness and mortise dimensions for full recessed installation.
  2. Use manufacturer-provided templates to mark mortise location accurately on door bottom edge.
  3. Prepare door by routing mortise cavity to exact specifications for flush mounting of aluminum case.
  4. Install mounting hardware and secure the device to door per manufacturer torque specifications ensuring proper alignment.
  5. Adjust plunger position and drop-bar travel for proper contact with jamb and complete seal against floor or threshold.
  6. Test device operation to verify smooth drop-bar action and effective sealing throughout door operation cycle. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Pemko Quality?

Pemko automatic door bottoms deliver professional-grade reliability with durable aluminum construction and smooth-action positive seal mechanisms engineered for demanding commercial applications. As an ASSA ABLOY Group brand with over 70 years of weatherstripping expertise since 1952, Pemko continues to develop innovative solutions for architectural door accessory requirements. The 434 series combines proven sealing performance with ADA-compliant operation where dependable weatherstripping performance is essential.

Product Documentation & Resources

Manufacturer Resources

Product Specs

Features:
Smooth Action, Positive Seal Mechanism
Warranty:
5 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Automatic Door Bottoms
Subcategory:
Door Bottoms & Door Shoes
ANSI/BHMA:
BHMA Certified, Fire Rated - UL10C, Smoke Tested - UL1784, Underwriters Laboratory 4L10, GREENGUARD Gold Certified, Sound Tested - ASTM E90
Commercial/Residential:
Commercial
Product Model:
434
Product Dimension:
L: 36", W: 27/32", H: 1-5/16"
Product Category:
Door Trim and Accessories
Product Substrate:
Aluminum
Department:
Door Hardware

Pemko 434ARL 30 – Frequently Asked Questions

1) What is the Pemko 434 full mortise automatic door bottom used for?
The Pemko 434 provides automatic sealing at the door bottom when the door closes. It mortises into the door bottom edge to create a weatherproof seal against thresholds. Commonly used on exterior doors and fire-rated assemblies.
2) What door thickness does the Pemko 434 fit?
Verify door thickness compatibility with manufacturer specifications. Most Pemko 434 units fit standard commercial door thicknesses. Check the mortise depth requirements against your door construction before ordering.
3) Does this door bottom require specific handing?
The Pemko 434 typically installs universally without hand-specific orientation. The automatic drop mechanism activates based on door position regardless of swing direction. Confirm installation requirements with the manufacturer template.
4) What finish options are available for the Pemko 434?
Pemko door bottoms come in various finishes including mill aluminum, dark bronze, and other architectural finishes. The specific finish for this 36-inch length unit should be confirmed at time of order to match your door hardware.
5) What is the duty rating for the Pemko 434?
Pemko 434 automatic door bottoms are designed for commercial duty applications. They meet requirements for high-frequency use in institutional and commercial buildings. Check project specifications for specific performance standards required.
6) Does this door bottom meet fire code requirements?
Many Pemko door bottoms are listed for use in fire-rated assemblies. Verify the specific fire rating and listing information for code compliance. Installation must follow manufacturer instructions to maintain fire rating integrity.
7) What replacement parts are available for the Pemko 434?
Pemko offers replacement seals, springs, and actuating mechanisms for their automatic door bottoms. Contact the manufacturer or browse door hardware sections for compatible replacement components.
8) How is the Pemko 434 installed in the door?
Installation requires mortising the door bottom edge to the specified depth and width. Use the manufacturer template for precise positioning. The unit fastens with through-bolts or screws depending on door construction. Professional installation recommended.
9) How do you adjust the Pemko 434 after installation?
The drop mechanism includes adjustment screws to control seal extension and retraction timing. Adjust the actuating pin position to ensure proper seal contact with the threshold. Follow manufacturer instructions for fine-tuning performance.
10) Are there similar Pemko models to the 434?
Pemko offers various automatic door bottom models including surface-mounted and concealed versions. The 434 series includes different lengths and configurations. Browse Pemko products for related weathersealing solutions.
11) What field conditions affect door bottom performance?
Extreme temperatures can affect seal flexibility and mechanism operation. Heavy debris or damage to the actuating pin impacts proper function. Regular cleaning of the threshold area prevents interference with seal operation.
12) What are the key measurements needed for installation?
Measure door width, thickness, and bottom rail height. Verify threshold height and gap requirements. The 36-inch length fits doors up to that width. Confirm mortise dimensions and fastener locations using the installation template.
How fast can I get the Pemko 434ARL 30 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko 434ARL 30 come with a warranty?
Absolutely. The Pemko 434ARL 30 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko 434ARL 30?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pemko 434ARL 30 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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