Name: LCN 3131-PLATED Concealed Door Closer with Single Lever Arm Track and Plated Finish
Brand: LCN
SKU: 3131-652
Price: 662.58 USD
Availability: InStock

Product Overview
FAQs

LCN 3131 Concealed Door Closer with Single Lever Arm Track and Plated Finish

Professional Concealed Door Closer Solution

The LCN 3131 Concealed Door Closer delivers professional-grade door control with complete concealment within 1-3/4" interior doors. This Grade 1 certified closer features a forged steel single lever arm with low-friction track and roller assembly, designed for doors up to 40" wide. The 1-1/8" diameter forged steel piston and cast iron cylinder construction meet ANSI/BHMA A156.4 Grade 1 standards and ADA reduced opening force requirements for demanding commercial applications.

Professional Features & Benefits

Door Compatibility: Designed for 1-3/4" interior doors up to 40" wide with complete concealment for clean architectural appearance.
Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement low-friction bearing for exceptional durability.
Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 tested and certified for demanding commercial applications with ADA compliance.
Concealed Operation: Single lever arm with low-friction track and roller assembly provides complete concealment while maintaining optimal door control.
All-Weather Performance: All-weather fluid and tamper-resistant regulating screws ensure consistent operation in varying environmental conditions.
UL Listed Safety: UL and cUL listed for self-closing doors without hold-open for code compliance and safety assurance.
Manufacturer Warranty: 15-year limited warranty for added confidence and long-term protection.
Professional Installation: Handed design with wood and torx security screws, available in spring sizes 1-3 for proper door sizing.

Technical Specifications

ADA Compliant: Yes
BAA Qualified: Yes
Closer Size: 1
Commercial/Residential: Commercial
Default Arm/Track: Standard Arm (STDTRKARM)
Delay Function: No
Department: Door Hardware
Door Type: Interior Door
Duty Level: Medium Duty
Fasteners: Wood and Machine Screws
Finish Type: Plated
Fluid Type: All-Weather
Handle Type: Lever
Mounting Detail: Concealed - In the Door
Mounting Location: In the Door
Mounting Method: Concealed
Product Category: Door Controls
Product Group: Door Controls
Product Model: 3131
Product Subgroup: Door Closers - Overhead Concealed
Product Substrate: Iron
Product Type: Overhead Concealed Closers
Series: 3130 Series
Subcategory: Concealed Closers
Warranty: 15 Year

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 LCN Quality?

LCN 3131 door closers deliver professional-grade reliability with cast iron and forged steel construction rated to ANSI/BHMA A156.4 Grade 1 standards. Backed by a 15-year limited warranty and UL listing, this concealed closer provides the dependable performance and architectural flexibility essential for demanding commercial applications where both function and appearance matter.

Manufacturer Resources

LCN Full Line Catalog

LCN Concealed Closers catalog section

LCN 3030 Series catalog section

LCN 3130 Series catalog section

Choosing the Right Concealed Closer

LCN Installation Instructions/Templates Index

Product Specs

Series:: 3130 Series
ADA Compliant:: Yes
BAA Qualified:: Yes
Warranty:: 15 Year
Closer Size:: 1
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:: Plated
Fluid Type:: All-Weather
Fasteners:: Wood and Machine Screws
Commercial/Residential:: Commercial
Handle Type:: Lever
Product Model:: 3131
Delay Function:: No
Mounting Method:: Concealed
Product Category:: Door Controls
Product Substrate:: Iron
Department:: Door Hardware

LCN 3131-652 – Frequently Asked Questions

1) Will the LCN 3131 concealed closer work on my 1-3/4 inch interior door?

That is exactly the opening it's built for. The 3131 conceals in the door itself on 1-3/4 inch interior doors up to 40 inches wide. Two things rule it out: an exterior opening (it's specified as an interior door closer) and a door leaf wider than 40 inches. It also has to be a door that can be prepped for an in-the-door cavity, since the cylinder buries inside the leaf rather than mounting on the face.

2) Is the LCN 3131 handed, and how do I know whether to order left hand or right hand?

Handed, yes, and it can't be flipped in the field like a surface closer. You pick Right Hand or Left Hand when you order. Stand outside the door on the push side, the side the hinges are not on: if the hinges are on your right as the door swings away from you, it's right hand. Get this wrong on a concealed unit and the door has to come off to fix it, so confirm the swing before the order goes in.

3) Which track do I need with the LCN 3131 concealed closer, and does hold-open affect the fire rating?

Four tracks are orderable: standard track, hold-open track, track with bumper, and hold-open track with bumper. The standard arm and track (STDTRKARM) is what ships by default. The bumper option stops the door at the end of the swing where there's no wall stop to take the hit. On the fire question, the UL and cUL listing on the 3131 covers self-closing doors WITHOUT hold-open, so a hold-open track is for a non-rated opening, or one where hold-open is released by the fire alarm through separate hardware. On a fire door, order the standard or bumper track.

4) Does the LCN 3131 meet ADA opening force for an accessible entrance?

It does. The 3131 is ANSI/BHMA A156.4 Grade 1 and is listed as meeting ADA reduced opening force requirements, which is what an inspector looks for on an accessible interior opening. It's also BAA qualified, which matters on federally funded work.

5) Should I use a concealed-in-door closer like the LCN 3131 or a surface mounted closer?

Pick the 3131 when the closer can't be seen. It buries in the leaf with only the arm and track showing at the head, which is why it turns up on lobby, executive office, and healthcare corridor doors where a surface closer on the face is not acceptable. The trade-off is prep and service: the door has to be morticed for the cylinder, and adjusting or replacing it means getting into the door. A surface closer costs less to install, retrofits an existing door with no cavity, and services from a ladder. If the door is already hung and unprepped, or nobody cares what the head looks like, surface is the practical choice.

6) What spring size is the LCN 3131 and can I adjust the closing force after it's installed?

Closer size 1 is what's specified, with spring sizes 1 through 3 available for sizing to the door. Regulating screws are tamper resistant, so the valves aren't something a tenant can back off with a screwdriver. There's no delayed action on the 3131, so if you need a slow initial swing for someone using a walker or a cart, that's a different closer.

7) Is the LCN 3131 heavy duty enough for a school or hospital corridor door?

It's rated medium duty, with a cast iron cylinder, a 1-1/8 inch diameter forged steel piston, a full-complement low-friction bearing, and a forged steel single lever arm. That's Grade 1 commercial construction and it's specified for offices, schools, healthcare, retail, and government buildings. Where it stops being the right call is high-abuse traffic: heavy duty is a different closer, and the 40 inch width cap rules out wide corridor leaves.

8) Does the LCN 3131 come with mounting screws, or do I need to order fasteners separately?

Fasteners are included: wood and machine screws, along with torx security screws for the exposed points. What you do need to sort out separately is the door prep. The cylinder sits inside the leaf, so unless the door arrives factory-prepped for a 3130 series concealed closer, the mortise has to be cut, and the track sets into the frame head.

9) What finishes does the LCN 3131 concealed closer come in, and will it match the lever hardware on my other doors?

Seven plated finishes: 616 satin bronze blackened, 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, and 652 satin chrome. Those are standard BHMA finish numbers, so match by number to the levers and hinges already on the openings, not by name. Bear in mind only the arm and track are visible at the head, so the finish decision covers a small amount of exposed metal.

10) Will an LCN 3131 hold its closing speed in an unheated stairwell or a building with big temperature swings?

All-weather fluid is used in the 3131, so the closing speed doesn't drift the way a standard-fluid closer does when the temperature moves. Worth knowing that it's still specified as an interior door closer, so use it on an interior opening in an unconditioned space, not on an exterior door.

How fast can I get the LCN 3131-652 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 LCN 3131-652 come with a warranty?

Absolutely. The LCN 3131-652 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 3131-652?

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 LCN 3131-652 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.

LCN 3131-PLATED Concealed Door Closer with Single Lever Arm Track and Plated Finish

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