Type 30 Reciprocating 80 Gal. 7.5 HP Electric 230-Volt, Single Phase Air Compressor Set your store to see localavailability D25IN 15 SCFM Refrigerated Air Dryer Impact and Ratchet Kit 429 Gal. Air Reciprocating SawF/R+L Combination Unit Port 270 Gal. HVLP Gravity Feed Spray GunDrive Super Duty Impact WrenchDrive Lug Nut Service Flip Impact Socket Set 5-Piece Hammer Chisel Set #50 Air Tool Oil D42IT 25 SCFM High Temperature Refrigerated Air Dryer Set your store to see localavailabilityYour browser is out of date This website will not look or function as originally intended in your current browser We recommend upgrading to the latest version of Which choice is right for you? Discover the best possible hardware for the job.LCN 1000 SeriesSurface mounted 1000 Series LCN closers feature and modern slim line design for easy installation of narrow head frames and top rails.LCN 4000 SeriesEasy application and superior performanceLCN Cast Aluminum SeriesThis new design features the industry’s most common hole pattern, and is an excellent choice for a range of applications — from aftermarket replacement, to aluminium store fronts, to new construction projects.
2310ME/4310ME/4410ME Series Holder/ClosersInfinitely adjustable hold-open for fire and smoke barrier doors3130SE/4040SE Series Holder/ClosersSingle point hold-open for fire and smoke barrier doorsSEH SeriesProvides single point hold-open for fire and smoke barrier doorsSEM 7800 Series MagnetsSentronic® SEM 7800 Series are heavy duty, electrically controlled door holding magnetsHSA Sentronic Electrically Controlled Closer/HolderAn electrically controlled closer/holder designed to provide easy passage for groups of pedestrians through high traffic doors 2210 SeriesWith special components to minimize tampering and vandalism4210 SeriesWith special components to minimize tampering and vandalism4510 SeriesA heavy duty, high security closer 6030 SeriesA heavy duty, double acting closer5030 SeriesProvides superior door control5010 SeriesFor institutional and high traffic applications3130 SeriesProvides complete concealment3030 SeriesSuperior door control2210 SeriesWith special components to minimize tampering and vandalism2030 SeriesA heavy duty closer2010 SeriesA heavy duty closer
2610 SeriesThe 2610 pneumatically powers multiple doors4810 SeriesDesigned for manual opening applications4820 SeriesThis low energy automatic operator provides easy access4840 SeriesThe 4840 Auto Equalizer™ is a pneumatically powered Multi-Door solution 4630 SeriesThe 4630 Auto Equalizer™ is LCN’s smart & reliable electrically powered low-energy power operator4640 SeriesThe 4640 Auto Equalizer™ is LCN’s smart & reliable electrically powered low-energy power operator BenchmarkThe Benchmark is a cost-effective solution for retrofitting an activated or manual doorSenior SwingSenior Swing operator when activated, opens doors automatically for wheelchair access, yet allows for manual operation for regular pedestrian traffic. Automatic Operator Sensors & AccessoriesThe desired function, traffic patterns and physical design of the opening will determine the type of sensors used.Automatic Operator Actuators & AccessoriesThe desired function, traffic patterns and physical design of the opening will determine the type of actuators used.
Falcon 8200 Automatic Operator VideoGet BIM ModelsLCN 1460 Green DialLCN 4000 Series Metal TemplateDoor closer adjustment is an art that requires knowledge, patience, and an ability to climb up and down a ladder several times, but with these attributes and the appropriate wrench, hex key, or screwdriver, you can do it yourself. This article is primarily about surface-mounted door closers, but the ideas here can be applied to other kinds of door closers as well. Most of the adjustments are implemented by opening and closing hydraulic valves. When it comes to turning the screws that operate these valves, a little goes a long way. A turn of five degrees can significantly increase or decrease closing speed. Do Not Completely Unscrew Hydraulic ScrewsYou will ruin the closer and void the warranty. Also, hydraulic fluid will leak out of the closer and make a mess. A door closer is a mechanical device designed to close a door slowly but firmly enough to latch. It accomplishes this by using spring tension modulated by hydraulic fluid.
As the user opens the door, hydraulic fluid passes from one reservoir to another. As the spring pushes the door closed again, the hydraulic fluid passes back to the previous reservoir through a series of valves that control the speed. The illustration above shows the effects of the common hydraulic adjustment controls available on most commercial grade door closers. Controls for swing speed and latching speed control how fast the door closes. Many closers also feature a hydraulic control for back check that controls the last few inches of the opening the door so as to prevent the door from being slammed into an adjacent wall. Swing speed adjustment controls how fast the door closes from fully open to within about five degrees of closed. Latching speed adjustment controls how fast the door closes for those last few inches. Back check adjustment controls the amount of resistance to opening the door past a selected point. The illustration below shows the various hydraulic control valves.
These might be located in many configurations, but you will usually see the back check control located somewhat away from the latch speed and swing speed controls. There are also door closers equipped with an additonal valve for delayed action. Delayed action closers hold the door open for a longer period of time to allow persons with disabilities more time to get through the door. Notice the spring tension adjustment in the illustration above. Spring tension controls the "size" of a closer. The term is misleading, because it does not actually have anything to do with the physical dimensions of the closer. This type of size is determined by the width of a door. "Sized" closers—that is, closers that have a factory pre-determined spring tension for a particular door width—have no spring tension adjustment. Many door closers today are "non-sized," indicating that you can adjust the spring tension to fit the size of the door. It is tempting to use the spring tension adjustment to solve problems—for example, in positive pressure situations where air flow is preventing the door from closing properly.
However, the tighter you make the spring, the harder it will be to open the door. It is possible to tighten the spring tension so that some people will not be able to open the door. To adjust the door closer: Bring a step ladder tall enough so that you can easily reach the door closer from the second- or third-highest step. Climb the ladder and examine the closer. If you can't see adjustment screws, chances are the closer has a cover. Usually the cover is plastic, but it could also be metal. If you see no fasteners holding the cover on, that means the cover is held on by tension. If you do see fasteners, usually you can loosen, but not remove, the fasteners and the cover will slide off. If you find that there is oil in the cover or oil on or leaking from the closer body, stop right now. You need a new door closer. If, however, it is not leaking, you can proceed. Now that you have the cover off, you should be able to see the adjustment screws. If you are lucky, they will be marked on the closer body as to what they are or there will be a diagram inside the cover.
If not, you may have to experiment a little to see which is which. Remember, when it comes to turning door closer adjustment screws, a little goes a long way. Start with no more than 1/8 of a turn. Turn the adjustment screw clockwise to slow the door closer down, counter-clockwise to speed it up, then get down off the ladder and observe the effect. Open the door and watch it close. If it closes right the first time, check it 10 more times. If it closes correctly every time, you're done. If not, go back up the ladder and make another adjustment, until the closer is doing what you want it to do. When it closes the way you want 10 times in a row, it will probably continue to do so. Ideally a non-delayed action door closer will close and latch the door in seven to eight seconds. If you expect a door closer to consistently close the door, the door must be able to close properly. If there is a hinge problem, a warped door, or the door must swing uphill to close, a door closer will only go so far to solve the problem.
Sometimes a door must be repaired before it will close and lock automatically with a door closer. In vestibule conditions there is an exterior door, a small space, and then an interior door. The trapped air between the inside and outside door can be a factor in door closing. You may have to adjust both closers to get both to work correctly. Wherever air pressure is a factor, including negative or positive pressure situations, I have have been able to get door closers to close and latch the door consistantly by adjusting them to a slow swing-speed and a somewhat fast latch-speed. The slow swing-speed seems to give the air a chance to get out of the way and the fast latch speed gives it a very slight slam at the end to make sure it latches. If the closer stops closing the door before it's closed all the way, or actually spings back when you try to manually shut the door, the arm is probably installed on the shaft incorrectly. Download the instructions from the door closer manufacturer's web site and see if it is installed correctly.