LCN 3131-POWDER Concealed Door...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$792.00
$539.01
LCN 3131-POWDER Concealed Door Closer with Single Lever Arm and Track, Powder Coat Finish - 689 Aluminum

LCN 3131-POWDER Concealed Door Closer with Single Lever Arm Track and Powder Coat Finish

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Model: 3131-689
$792.00
$539.01
Selected Finish is
Selected Handing is
  • LCN ADDER-LCN-3130 Series-[TRACK]=Standard Track (STDTRACK) ADDER-LCN-3130 Series-[TRACK]=Standard Track (STDTRACK)
  • LCN ADDER-LCN-3130 Series-[TRACK]=Hold-Open Track (H) ADDER-LCN-3130 Series-[TRACK]=Hold-Open Track (H)
  • LCN ADDER-LCN-3130 Series-[TRACK]=Track with Bumper (BUMP) ADDER-LCN-3130 Series-[TRACK]=Track with Bumper (BUMP)
  • LCN ADDER-LCN-3130 Series-[TRACK]=Hold Open Track with Bumper (HBMP) ADDER-LCN-3130 Series-[TRACK]=Hold Open Track with Bumper (HBMP)

In Stock (leaves warehouse same day if ordered before 3pm ET)

$792.00
$539.01
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LCN 3131 Concealed Door Closer: Single Lever Arm Track, Powder Coat Finish

The LCN 3131 Concealed Door Closer delivers professional-grade door control with complete concealment within 1-3/4" interior doors. ANSI/BHMA A156.4 Grade 1 certified, UL and cUL listed, and ADA compliant, it is engineered for medium-duty commercial applications where clean architectural appearance and code compliance are both required. Cast iron cylinder construction with a 1-1/8" diameter forged steel piston handles doors up to 4'0" wide. All-weather fluid and tamper-resistant regulating screws ensure consistent performance across temperature extremes.

Key Features

  • Door Compatibility: 1-3/4" interior doors up to 4'0" wide, fully concealed for clean architectural appearance.
  • Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement bearing.
  • Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certified; UL and cUL listed for self-closing door applications.
  • ADA Compliant: Meets reduced opening force requirements for accessible door operation.
  • BAA Qualified: Buy American Act qualified for government and federally funded projects.
  • All-Weather Fluid: Consistent closing speed across temperature variations without seasonal adjustment.
  • Tamper-Resistant Adjustments: Regulating screws resist unauthorized tampering in high-traffic environments.
  • Finish Options: Powder coat standard; optional plated finish with SRI primer available for corrosive conditions.
  • 15-Year Limited Warranty: Long-term coverage for commercial installations.

Technical Specifications

  • Series: 3130 Series
  • Model: 3131
  • Closer Size: 1
  • Mounting Method: Concealed - In the Door
  • Default Arm/Track: Standard Arm (STDTRKARM)
  • Door Type: Interior Door
  • Duty Level: Medium Duty
  • Fluid Type: All-Weather
  • Finish Type: Powder Coat
  • Fasteners: Wood and Machine Screws
  • Handle Type: Lever
  • Product Substrate: Iron
  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Commercial/Residential: Commercial
  • Warranty: 15 Year

Typical Applications

  • Commercial office buildings
  • Educational facilities
  • Healthcare institutions
  • Government and municipal buildings
  • Retail and hospitality
  • Multi-family and multi-tenant residential

Why LCN 3131?

When the spec calls for a concealed closer on an interior door and the project requires ADA compliance, BAA qualification, and a Grade 1 rating, the LCN 3131 meets all three. The 15-year limited warranty and UL listing back it up for the life of the installation.

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:
Powder Coat
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 Substrate:
Iron
Product Category:
Door Controls
Department:
Door Hardware

LCN 3131-689 – Frequently Asked Questions

1) Will the LCN 3131 concealed closer work on a 1-3/4 inch interior door?
That's exactly the opening the 3131 is built for. It's a size 1 closer that mounts concealed in the door itself on 1-3/4 inch interior doors up to 4'0" wide. Anything wider, or an exterior opening, is outside what this one covers. The door also has to have a top rail deep enough to take the cylinder, since the body lives inside the door leaf and the track mounts in the frame head.
2) Do I have to specify handing when ordering an LCN 3130 Series concealed closer?
Yes, and getting it wrong means the closer won't go in. The 3131 is ordered left hand or right hand, and that's a required choice, not an option. Stand outside the door on the side it swings away from: hinges on your left is left hand, hinges on your right is right hand. Unlike a surface closer you can flip and re-mount, a concealed in-door unit is cut into the leaf for one hand.
3) Which track do I order with the LCN 3131, and what does hold-open actually do?
Four track choices, and the track is a required pick: standard track, hold-open track (H), track with bumper (BUMP), or hold-open track with bumper (HBMP). Standard closes from any position. Hold-open catches the door open at a set point and holds it until someone pulls it shut, which is what you want on a door people prop for deliveries or moving carts. The bumper stops the door before it hits an adjacent wall or the leaf itself. HBMP gives you both. Default shipped arm is the standard arm (STDTRKARM).
4) Is the LCN 3131 closer ADA compliant for an accessible interior opening?
Yes. The 3131 is ADA compliant and meets the reduced opening force requirement for accessible doors. Worth knowing before you spec it: on a 3130 Series closer, dialling spring power down to hit an ADA opening force also reduces closing power, so on a door that has to latch against weatherstrip or air pressure you want to check the door width against the size selection before committing. It's a size 1 closer, which is the low end of the range.
5) Can I use the LCN 3131 concealed closer on a federally funded or government job?
It qualifies. The 3131 is Buy American Act qualified, which is what a government, municipal, or federally funded project office will ask for. It also carries an ANSI/BHMA A156.4 Grade 1 rating and is UL and cUL listed for self-closing door applications, so it covers the usual spec language on institutional work.
6) Should I use a concealed-in-door closer like the LCN 3131 or a surface mounted closer?
Pick the 3131 when nobody is supposed to see the closer. It buries the cylinder inside the door leaf with only the arm and track showing at the head, which is why it gets specified in lobbies, offices, and anywhere the architect cares what the opening looks like. The trade-off is prep: the door has to be machined for the cylinder, so it's a decision you make before the door is ordered, not after. A surface closer bolts onto the face of an existing door and can be swapped out in an hour. Also note the 3131 is an interior, medium duty, size 1 unit, so a heavy exterior entrance or a door wider than 4'0" belongs on something else.
7) Does the LCN 3131 door closer have a delayed action option?
No delay function on the 3131. The door starts closing as soon as it's released, at the speed the regulating valves are set to. If the opening needs a pause before it begins to close, say a healthcare corridor where someone is moving a bed or a wheelchair through, this isn't the closer for it and you should be looking at a unit that lists delayed action.
8) Will an LCN 3131 hold its closing speed in an unheated stairwell or a hot warehouse?
It uses all-weather fluid, so closing speed stays consistent through temperature swings without anyone going back to re-adjust it seasonally. The regulating screws are tamper-resistant too, which matters more than it sounds in a school, a dorm, or a public corridor where the closer would otherwise get a screwdriver taken to it every few months.
9) Is the LCN 3131 closer heavy duty enough for an office corridor door that gets used all day?
Medium duty is the rating, and it's a commercial closer, not a residential one. The body is a cast iron cylinder running a 1-1/8 inch diameter forged steel piston on a full-complement bearing, which is what carries it through medium to high traffic. For a fleet of interior office, retail, or multi-family corridor doors up to 4'0" wide it's the right class. A heavy exterior entrance under constant abuse is a different specification.
10) Can the LCN 3131 concealed closer be installed in a wood door as well as a hollow metal door?
It ships with both wood screws and machine screws, so it fastens into a prepped wood leaf or into metal. What decides it isn't the fastener though, it's the prep. The cylinder sits inside the door, so the leaf has to be machined and reinforced for a concealed closer, and on a hollow metal door that means factory prep and reinforcement ordered with the door. Retrofitting one into a door that was never prepped is machining work, not a swap.
11) What finishes does the LCN 3131 concealed closer come in?
Six powder coat finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Those are the standard BHMA finish numbers, so matching the closer arm and track to lever trim or hinges already on the building is a matter of matching the number. For corrosive conditions there's an optional plated finish with SRI primer instead of powder coat.
How fast can I get the LCN 3131-689 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 3131-689 come with a warranty?
Absolutely. The LCN 3131-689 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 3131-689?
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 3131-689 from ZenSupply?
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