Stanley Security D-4551S - Par...
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Stanley Security D-4551S - Parallel, Multi-Sized 1-5, Door Closer with Heavy Duty Arm with Stop

Stanley Security D-4551S - Parallel, Multi-Sized 1-5, Door Closer with Heavy Duty Arm with Stop

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Model: D-4551S 695
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Stanley Security D-4551S - Parallel, Multi-Sized 1-5, Door Closer with Heavy Duty Arm with Stop

The model D4551 Series is Stanley's best performing Heavy Duty Closer. The cylinder body is manufactured using R-14 Silicon Aluminum Alloy providing superior strength and durability on institutional applications. Available in a variety of standard and heavy-duty arm configurations accommodating a broader range of today's growing architectural application requirements.

Stanley D-4551S Multi-Sized 1-5 Door Closer with Heavy Duty Arm w/ Stop (Push Side Mount)

Closing Power Adjustment:
D-4551** Size 1 5 with 35% spring power adjustment over size 5.
** Meets ADA 5lb opening force requirements. The D-4551 Series is adjusted to size 2 before leaving the factory.

Fully Hydraulic Checking Controls the door through the entire opening and closing cycles by providing adjustable backcheck upon opening and adjusting general and latch speeds through the closing cycle.

Delayed Action Optional: The D-4550DA / D-4551DA Series Door Closers are equipped with a separate hydraulic valve adjustment to delay the closing speed from 180 to 70 degrees of door opening range. To order add suffix DA to closer number.

Adjustable Spring Power: The D-4550/D-4551 Series Door Closers are designed to have the widest range of spring power adjustment available to meet the broadest range of application requirements.

All Season Fluid: All season fluid eliminates the need for seasonal adjustment.

Forged Arms: Heavy duty forged arms are interchangeable between the D-4550 and D-3550 Series Door Closers.

High Impact Cover: All D-4550 / D-4551 Series Door Closers are shipped with a high impact self-extinguishing decorative cover.

Latching Power Adjustment: The D-4550 / D-4551 Series Door Closers have the provision to adjust the leverage of the arms by changing the pivot position of the arm in the shoe. The shoe itself does not have to be removed from the door or jamb.

Non-Handed: Can be used on both RH and LH doors for both push side and pull side mounting.

Special High Silicon Aluminum Alloy Housing: All D-4550 / D-4551 Series Door Closers are constructed of "STANLEY" SR14 HIGH SILICON ALUMINUM ALLOY to exceed the ANSI/BHMA A156.4 Grade 1 requirements.

 

 

Cut Sheet

Manufacturer Resources

Product Specs

Series:
D-4551
ADA Compliant:
Yes
Mounting Detail:
Surface - Hinge Mount(Pull Side), Top Jamb Mount(Push Side), Parallel Arm Mount(Push Side)
Mounting Location:
Pull Side
Subcategory:
Surface Mounted Closers
Product Group:
Door Controls
Product Subgroup:
Door Closers - Surface Mounted
Product Type:
Surface Mounted Door Closers
Fluid Type:
All-Weather
Commercial/Residential:
Commercial
Mounting Method:
Surface Mount
Product Category:
Door Controls
Department:
Door Hardware

Parts & Accessories

    Stanley Security D-4551S 695 – Frequently Asked Questions

    1) Will the Stanley D-4551S door closer work on a right hand door and a left hand door?
    Non-handed. The D-4551 Series closer works on both right hand and left hand doors, and it can be mounted push side or pull side. One part number covers every opening in a building, which is why it suits a facility standardizing on a single closer across mixed swings.
    2) What mounting positions does the Stanley D-4551 closer support, and where does the S version with the stop arm mount?
    Three mountings are covered: hinge (pull side) surface mount, top jamb (push side), and parallel arm (push side). The D-4551S with the heavy duty arm and stop is the parallel arm, push side configuration, so the closer body sits on the door face on the push side and the arm brackets to the frame soffit. If your opening needs the closer on the pull side of the door instead, order the regular arm version rather than the S.
    3) Do I still need a separate door stop if I use the D-4551S closer?
    The heavy duty arm on the D-4551S has a built in stop, so the arm itself limits how far the door swings on the push side. That is the point of specifying the S version over a plain parallel arm: on an exterior opening with wind load, or a corridor door that would otherwise slam a wall, the stop is in the arm rather than in a separate wall or floor stop. Whether you keep an existing floor stop is a judgment call on the opening, but the closer arm is doing the stopping.
    4) Is the Stanley D-4551 closer ADA compliant for a 5 lb opening force?
    Yes, the D-4551 meets the ADA 5 lb opening force requirement. That is achieved by dialing the spring down within the size 1-5 range, so on an interior barrier free opening you set it low enough to hold the 5 lb pull. It leaves the factory set at size 2.
    5) What spring size does the Stanley D-4551 come set at, and do I have to adjust it on site?
    It ships adjusted to size 2. For a standard interior office or classroom door that is usually close to right, but exterior doors, wide doors and anything fighting stack pressure will need it turned up. The adjustment spans sizes 1 through 5 with a further 35 percent spring power available beyond size 5, so one closer covers a light interior leaf and a heavy exterior entrance. Expect to set it at install, not out of the box.
    6) Can I get a Stanley D-4551 door closer with delayed action for a hospital or accessible entrance?
    Delayed action is an option, ordered by adding the DA suffix to the closer number (D-4551DA). It adds a separate hydraulic valve that slows the closing between 180 and 70 degrees of opening, which is what you want where a wheelchair, a gurney or a cart needs extra seconds to clear the opening. Standard D-4551S does not include it, so specify DA at order time.
    7) Is the Stanley D-4551 heavy duty enough for a school or hospital entrance?
    It is Stanley's best performing heavy duty closer and is built for institutional traffic. The cylinder body is R-14 silicon aluminum alloy, and the housing is Stanley SR14 high silicon aluminum alloy specified to exceed ANSI/BHMA A156.4 Grade 1. For a high cycle opening (school corridor, hospital entrance, multi-family common door) that is the right class of closer. For a low traffic interior door a lighter Grade 1 like the Falcon SC81A medium duty would be the cheaper spec.
    8) I need the door to stay open on its own. Does the Stanley D-4551S hold open, and what closer does?
    The Stanley D-4551S carries a heavy duty arm with stop, which stops the door rather than holding it open, and its optional delayed action variant slows the close from 180 to 70 degrees rather than latching the door open. For a true hold open arm, the Accentra 51 Series is an industrial closer with a hold open tri-packed arm in size 1-6, and the Orca Hardware BHDC1958HO/PA is a hold open closer with a parallel bracket for 1-3/4 inch doors.
    9) What is the closest heavy duty equivalent to the Stanley D-4551S if I need to standardize an institutional opening on another brand?
    The Stanley D-4551S is a surface mounted heavy duty closer with a multi-sized 1-5 spring range, adjustable backcheck, and all-weather fluid so no seasonal adjustment is needed. For a comparable heavy duty surface closer, the BEST EHD9000 Series is an extra heavy-duty surface mounted door closer with adjustable spring sizes 1-6, the Sargent 1431 Powerglide is a heavy-duty surface closer with adjustable spring power, and the Falcon SC71A is a heavy-duty surface-mount closer rated Grade 1. Each of those covers the same heavy traffic institutional role; the spring range differs, with the BEST and Sargent reaching size 6 where the Stanley tops out at size 5.
    10) I only need a closer for a light traffic interior office door, not an institutional exterior. What is a lighter alternative to the Stanley D-4551S?
    The Stanley D-4551S is built for heavy institutional applications with an R-14 silicon aluminum alloy cylinder body. On a light traffic interior door that duty level is more closer than the opening needs. Lighter options include the LCN 1250 Series, a light-duty surface-mounted closer with sizes 1-5 and all-weather fluid, the BEST SL6000 Series, a Grade 1 light duty surface mounted closer with adjustable spring sizes, and the Arrow DC314 from the DC300 Series, a Grade 1 light duty surface mounted closer. All three mount to the door surface the same way.
    11) The Stanley D-4551S has a heavy duty arm with stop. What should I use instead if the door already has a floor or wall stop?
    The D-4551S arm carries its own stop in the arm, which is the reason to choose it on a parallel arm push side mount where the door needs to be stopped at the closer. If the opening already has a separate stop, a plain non-hold-open arm closer covers the same job: the Accentra 1101BF is an industrial closer with a tri-pack mounting and a non-hold-open arm in adjustable spring sizes 1-4, the Design Hardware 116 Series is a heavy duty closer with a tri-packed non-hold open arm, and the Arrow DCN325 ships regular and parallel arm tri-pack in adjustable spring size 1-6. Tri-pack means the same closer covers regular, top jamb, and parallel arm mounting.
    12) Is a slide track or concealed track closer a substitute for the Stanley D-4551S?
    No, they mount and behave differently. The D-4551S uses a forged heavy duty arm on a surface mount, in hinge pull side, top jamb push side, or parallel arm push side configurations, with the arm projecting from the door. A track closer such as the Corbin Russwin DC5230, a Grade 1 surface closer with a slide track arm standard on pull side mounting for 1-3/4 inch doors, or the Dorma 8916-JT, a Grade 1 heavy duty jamb track closer on frame face pull side mounting in adjustable size 1-6, runs the arm in a track along the frame. The frame prep and the arm hardware are not interchangeable between the two styles, so a track closer is a design decision made before the door is prepped, not a drop-in swap.
    13) How do I adjust closing and latching speed on a Stanley D-4551 closer?
    Two separate things. The hydraulics give you adjustable backcheck on the opening swing plus independent general (sweep) and latch speed valves through the close. Latching power is different again: you change the leverage by moving the arm pivot position in the shoe, and the shoe stays where it is, no need to unscrew it from the door or jamb. That matters on a service call where a door is not pulling the latch, since you can fix it without redrilling.
    14) Will a Stanley D-4551 closer need seasonal adjustment on an exterior door in a cold climate?
    No. The D-4551 uses all season fluid, so you are not going back out in January to re-tune a door that has gone sluggish in the cold. On an exterior entrance that is the difference between one install visit and two.
    15) Can I reuse my existing Stanley closer arms when replacing with a D-4550 series closer?
    The heavy duty forged arms interchange between the D-4550 and D-3550 Series closers. If you have D-3550 closers in the building, the arm stock you already carry crosses over, which keeps a spare parts bin manageable across a mixed retrofit.
    16) What is a comparable heavy duty surface door closer to the Stanley D-4551?
    Closest in class from other brands ZenSupply carries: the BEST EHD9000 Series, an extra heavy duty Grade 1 closer with adjustable spring sizes 1-6, the Falcon SC71A Series heavy duty Grade 1, the Sargent 1431 Powerglide heavy duty Grade 1, and the LCN 1460T heavy duty Grade 1. Each of those is the same duty class for institutional openings. If your spec calls for something lighter, the Norton Rixson 8501A is Grade 1 medium duty with a 1-6 spring range.
    17) Which closer should I use if the door swings out and there is no room on the pull side?
    That is exactly the parallel arm case, and the D-4551S is set up for it: parallel arm mount, push side, with the arm running back along the door face instead of projecting into the opening. Use it where the pull side is a narrow vestibule, a corridor with traffic, or where the closer would be exposed to weather. Where the pull side is clear, a regular arm mount is the more efficient geometry and gives you more control on the door.
    18) The Stanley D-4551S exceeds ANSI/BHMA A156.4 Grade 1 and meets the ADA 5 lb opening force. Which other closers carry a Grade 1 rating for a spec that requires it?
    The Stanley D-4551S housing is high silicon aluminum alloy built to exceed ANSI/BHMA A156.4 Grade 1, and it is ADA compliant to the 5 lb opening force requirement. Other Grade 1 surface closers include the BEST HD8000 Series heavy duty, the Sargent 281 Powerglide cast iron heavy duty, the Falcon SC71A heavy-duty, the Norton Rixson 1600BC Series heavy duty aluminum storefront closer, and the Dexter DCH4000 Series tri mount. For submittals that also call out barrier free operation, the Cal-Royal 500S is a Grade 1 barrier free closer with adjustable back-check and the Cal-Royal N900PBF is a Grade 1 barrier free hydraulic surface closer.
    19) Is a drop plate or a bracket the same thing as a door closer when I am matching a Stanley D-4551S?
    No. The Stanley D-4551S is a complete surface mounted closer, cylinder body, heavy duty arm with stop, and a high impact self-extinguishing decorative cover. An item like the Arrow DCN500DP parallel drop plate for the DCN500 is a mounting plate only, with no hydraulic body, and it is specific to the closer it is made for. If a top rail or stop condition needs a filler or spacer, order the plate in addition to a closer, not in place of one.
    20) What is a medium duty alternative to the Stanley D-4551S for an interior corridor door that still needs a Grade 1 closer?
    The Stanley D-4551S is Stanley's heaviest duty closer in the series, built for institutional applications. An interior corridor or stairwell door with moderate traffic is often specified medium duty instead. The Sargent 1131 is a Grade 1 adjustable surface closer for medium-traffic commercial applications, the BEST HD7000 Series is a Grade 1 medium duty surface closer with adjustable spring power and backcheck control, the Falcon SC81A is a Grade 1 medium duty cast aluminum surface closer, and the Norton Rixson 1601P is a Grade 1 medium duty tri-mount closer with 180 degree swing. All hold the same Grade 1 rating with a lighter duty classification.
    21) I need delayed action so slower occupants can clear the door. What are my options besides the Stanley delayed action version?
    The Stanley D-4550DA and D-4551DA closers add a separate hydraulic valve that delays closing from 180 to 70 degrees of opening, ordered by adding the DA suffix to the closer number. On another brand, the Orca Hardware BHDC1958DA/PA is a delayed action closer with a regular arm and parallel bracket for 1-3/4 inch doors, and the Orca BHDC2011DA/PA is the same delayed action arrangement in the BHDC2011 Series.
    22) Is a Cal-Royal 400 a like-for-like replacement for a Stanley D-4551S on a school or hospital door?
    Not for a Grade 1 spec. The Cal-Royal 400 Series is a Grade 2 commercial hydraulic door closer. The Stanley D-4551S housing is built to exceed ANSI/BHMA A156.4 Grade 1. If the facility specification calls for Grade 1, the Cal-Royal Grade 1 equivalents are the 700S Series dual valve sized closer with adjustable tube arm and the 500S barrier free closer with adjustable back-check.
    23) What finish does the Stanley D-4551S door closer come in?
    695 dark bronze painted. That is the finish to match against dark bronze storefront and aluminum entrances; if the rest of your openings are aluminum or brushed, the D-4551S in 695 will read noticeably darker next to them.
    24) Does the Stanley D-4551 closer come with a cover?
    Yes, every D-4550 and D-4551 Series closer ships with a high impact, self extinguishing decorative cover. You are not ordering it separately, and you are not looking at an exposed cylinder on a finished opening.
    25) Is the Stanley D-4551 a commercial closer or will it work on a residential door?
    Commercial. The D-4551 is specified for institutional applications and Grade 1 commercial openings, and its spring range and heavy duty arm are aimed at doors that see real cycle counts. On a light residential door it will be more closer than the door needs. For lighter duty work, a Grade 1 light duty unit such as the BEST SL6000 Series or the Falcon SC91A (Grade 3 light duty) is the better match.
    26) The Stanley D-4551S ships with a decorative cover. Which comparable closers come without one?
    The D-4551S is shipped with a high impact self-extinguishing decorative cover as standard. Two Arrow closers are supplied less cover: the DCN314, a Grade 1 surface closer with regular and parallel arm tri-pack in adjustable spring size 1-4, and the DCN325, the same arrangement in adjustable spring size 1-6. The Design Hardware 316 Series is listed with a cover included, as is the Dexter DCH1000 Series, a Grade 1 tri mount closer with full cover. If the opening is exposed or the cover is part of the finish schedule, confirm the cover is included rather than assuming it.
    27) The Stanley D-4551S is non-handed. Which comparable closers also cover both left and right hand doors from one part number?
    The D-4551S is non-handed and can be used on both right hand and left hand doors, push side or pull side, which lets a property manager stock one closer for a whole building. Comparable closers that carry all three mountings in a single package include the Dexter DCM1000 Series, a Grade 1 tri mount closer for regular, parallel, or top jamb mounting, the Dexter DCL2000 Series in the same tri mount arrangement, the Norton Rixson 8501A Grade 1 tri-mount closer, and the Dormakaba 8616 AF86P FC SNB1 689, a Grade 1 heavy duty closer with a flat non-hold open arm supplied tri-pack.
    28) Does a Falcon SC91A cross to the Stanley D-4551S?
    No, they sit in different rating classes. The Falcon SC91A from the SC90A Series is a light duty cast aluminum surface-mount closer rated Grade 3. The Stanley D-4551S is built to exceed ANSI/BHMA A156.4 Grade 1 and is a heavy duty institutional closer. Within Falcon, the closer that matches the D-4551S duty class is the SC71A, a Grade 1 heavy-duty surface-mount closer.
    29) What are the Dormakaba equivalents to the Stanley D-4551S for a commercial opening?
    For a heavy duty match, the Dormakaba 8616 AF86P FC SNB1 689 is a Grade 1 heavy duty closer with a flat arm, non-hold open, supplied tri-pack, and the Dorma 8916-JT is a Grade 1 heavy duty jamb track closer in adjustable size 1-6. For a lighter opening, the DORMA 7303 Series is a Grade 1 medium duty surface-mounted closer and the Dormakaba 7414 is a Grade 1 medium duty closer in size 1-4. Note the arm style: the 8616 uses a flat arm rather than the forged heavy duty arm with stop on the Stanley.
    How fast can I get the Stanley Security D-4551S 695 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 Stanley Security D-4551S 695 come with a warranty?
    Absolutely. The Stanley Security D-4551S 695 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 Stanley Security D-4551S 695?
    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 Stanley Security D-4551S 695 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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