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LCN 3133 Concealed in Interior Door, Single Lever Arm High Security
The LCN 3130 concealed closer series is designed to mount in a 1 3⁄4" Interior door. The Single Lever Arm and roller assembly provides complete concealment and the choice of finishes and track functions meet virtually all architectural requirements.
The 3030/3130 Series Closers are designed for concealment within 1-3/4” Interior doors in medium- to high-traffic areas. Both Closer Series meet ANSI/BHMA A156.4 Grade 1 and the American Disabilities Act (ADA) reduced opening force requirements. A Concealed forged steel single-lever Arm and a low-friction track and roller assembly for the 3130 Series and an exposed forged steel Double-lever Arm for the 3030 Series create optimal Door control, with separate regulation of the general closing speed and latching speed. Joints in the 3030 Series Arm and shoe adapt to uneven trim.
Both the 3030 and 3130 Series are UL and cUL listed for self-closing doors without hold-open and carry a 15-year limited warranty. Materials for the Closers include a cast iron cylinder; one-piece forged steel piston; high-efficiency, full-complement, low-friction bearing; tamper-resistant regulating screws; and all-weather fluid.
Body construction
- Cast iron design
- 1-1/8” diameter forged steel piston
- Full-complement bearing
Quality and durability
- All-weather fluid
- Forged steel Arm
- 15-year warranty
Installation
- Handed design
- Wood and torx security screws
- For the 3030 Series, Spring sizes 1-4; for the 3130 Series, Spring sizes 1-3
Specifications
- Tested and certified under ANSI/BHMA A156.4 Grade 1
- UL and cUL listed with Regular Arm for self-closing doors
- Meets ADA requirements
- Sized cylinders for Interior doors to 4’0”
- Optional plated finish on Arm and fasteners
- Handed for right- and left-swinging doors
Designs and Finishes
- Standard or optional custom powder coat finish
- Optional plated finish
- Optional SRI primer for installations in corrosive conditions available with powder coat only
Mounting/Arm Options
The 3030 Series mounts in the Door with an exposed Arm. The 3130 Series mounts in the Door with a Concealed Arm. Visit the 3030/3130 Series catalog pages for mounting details, Arm options and accessories.
Also knows as
lcn 3133, lcn 3133 closer, lcn 3133 concealed closer, lcn 3133 concealed door closer
Manufacturer Resources
LCN Full Line Catalog
Product Specs
- Category:
- Door Controls
- Series:
- 3130 Series
- ADA Compliant:
- No
- BAA Qualified:
- Yes
- Warranty:
- 15 Year
- Mounting:
- Concealed
- Closer Size:
- 3
- Default Arm/Track:
- Standard Arm (STDTRKARM)
- Duty Level:
- Medium Duty
- Subcategory:
- Concealed Closers
- Mounting Location:
- In the Door
- Product Group:
- Door Controls
- Product Subgroup:
- Door Closers - Overhead Concealed
- Product Type:
- Overhead Concealed Closers
- Mounting Detail:
- Concealed - In the Door
- Door Type:
- Interior Door
- Finish Type:
- Powder Coat
- Fluid Type:
- All-Weather
- Delayed Action:
- No
- Fasteners:
- Wood and Machine Screws
- Substrate:
- Iron
- Commercial/Residential:
- Commercial
- Handle Type:
- Lever
- Tags:
- lcn 3133, lcn 3133 closer, lcn 3133 concealed closer, lcn 3133 concealed door closer
- Product Model:
- 3133
LCN 3133-689 – Frequently Asked Questions
1) What doors is the LCN 3133 concealed closer designed for?
The LCN 3133 is engineered for interior doors up to 250 lbs. Best suited for heavy-duty commercial interior applications including office doors, conference rooms, and institutional settings. Not recommended for exterior use or high-traffic areas requiring constant heavy use.
2) How does the single lever arm track system work?
The single lever arm connects the door to a track mounted in the frame header. As the door opens, the arm slides along the track, storing energy in the concealed spring mechanism. This provides controlled closing force while maintaining a clean appearance with minimal visible hardware.
3) Can this closer be used on both left and right hand doors?
Yes, the LCN 3133 is reversible for both left-hand and right-hand door applications. The track and arm assembly can be configured during installation. Verify door swing direction before ordering to ensure proper template alignment.
4) What is included with the powder coat finish?
Standard powder coat finish provides durable corrosion resistance for interior applications. Finish is applied to all visible components including the track and arm assembly. Color matches typical commercial door hardware finishes for consistent appearance.
5) What closing force rating does this closer provide?
The LCN 3133 delivers controlled closing force suitable for doors up to 250 lbs. Closing speed is adjustable through valve controls. Confirm door weight and width requirements with manufacturer specifications before installation.
6) Does this closer meet ADA accessibility requirements?
When properly adjusted, the LCN 3133 can meet ADA opening force requirements. Closing speed and latching speed must be set according to local accessibility codes. Verify compliance with building inspector during final inspection.
7) What installation clearances are required?
Installation requires adequate header depth for the concealed track assembly. Check manufacturer template for exact clearance requirements. Verify frame construction can support the closer mechanism before cutting any openings.
8) Are replacement parts available for the 3133?
Yes, LCN provides replacement parts including springs, seals, and adjustment valves. The lever arm and track components are also available separately. Contact manufacturer for specific part numbers and compatibility verification.
9) How are closing speed adjustments made?
Closing speed adjustments are made through accessible valve controls. Use manufacturer-specified adjustment tools to prevent damage to valve stems. Make small incremental adjustments and test door operation after each change.
10) What other LCN concealed closers are available?
LCN offers various concealed closer models for different applications. Browse our door closers section for overhead concealed and surface-mount options. Consider door weight, traffic level, and installation constraints when selecting alternatives.
11) Can the 3133 be installed in existing door frames?
Retrofit installation is possible but requires careful evaluation of existing frame construction. Header modifications are necessary to accommodate the concealed track. Consider structural integrity and aesthetic impact before proceeding with existing frame installation.
How fast can I get the LCN 3133-689 delivered?
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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 LCN 3133-689 come with a warranty?
Absolutely. The LCN 3133-689 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 LCN 3133-689?
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