Norton Rixson H28 Series Heavy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5,401.11
$1,026.98
Norton Rixson H28 Series Heavy Duty Concealed Floor Closer for Offset-Hung Doors

Norton Rixson H28 Series Heavy Duty Concealed Floor Closer for Offset-Hung Doors

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Model: SC-H28S-105-587-LH-626
$5,401.11
$1,026.98
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$5,401.11
$1,026.98
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Norton Rixson H28 Series Heavy Duty Concealed Floor Closer for Offset-Hung Doors

Premium Concealed Door Control Solution for Commercial Applications

The Norton Rixson H28 Series Heavy Duty Floor Closer delivers powerful concealed door control engineered for demanding commercial environments. Designed specifically for offset-hung doors with 3/4" offset, this premium floor closer supports doors up to 450 lb and 4'0" width while maintaining smooth operation and proper alignment. ANSI/BHMA A156.4 Grade 1 certified construction ensures reliable performance in high-traffic facilities including hospitals, schools, airports, and commercial office buildings.

Professional Features & Benefits

  • Heavy-Duty Door Capacity: Supports doors up to 450 lb and 4'0" width for versatile commercial applications requiring robust door control.
  • Offset-Hung Door Compatibility: Engineered specifically for doors with 3/4" offset ensuring stable and controlled operation for specialized door configurations.
  • Concealed Floor Design: Preserves clean architectural lines with no overhead closers or surface hardware required, maintaining aesthetic appeal.
  • Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certification provides heavy-duty reliability for high-traffic commercial environments.
  • Adjustable Closing Control: Independent sweep and latch speed valves allow precise closing control tailored to specific environmental requirements.
  • Durable Cast Construction: Heavy-duty cast closer body with corrosion-resistant components ensures longevity in demanding commercial applications.
  • Flexible Configuration Options: Available in hold-open and non-hold-open models to match code requirements and building use specifications.
  • Manufacturer Warranty: 2 Year Limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

  • ANSI/BHMA: ANSI/BHMA A156.4, Grade 1
  • Commercial/Residential: Commercial
  • Cover Type: Cast iron cement case
  • Department: Door Hardware
  • Door Swing: Single Acting
  • Duty Level: Heavy Duty
  • Grade: Grade 1
  • Hold Open Feature: No
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Subgroup: Door Closers - Floor
  • Product Type: Floor Door Closers
  • Series: SEC27 Series
  • Subcategory: Specialty Closers
  • Traffic Rating: High Traffic
  • Warranty: 2 Year Limited

Installation & Operation

  1. Review manufacturer specifications and verify floor preparation requirements including proper mortising dimensions and structural support for the cast iron cement case.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on floor surface and ensure proper alignment with door pivot points.
  3. Prepare floor by cutting required mortise pocket and drilling mounting holes as specified in manufacturer instructions for concealed installation.
  4. Install closer body in floor mortise and secure with appropriate fasteners per manufacturer torque specifications ensuring proper depth and alignment.
  5. Adjust sweep and latch speed valves for controlled closing operation appropriate to the specific commercial application and traffic patterns.
  6. Test door operation throughout full range of motion to verify proper closing control and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Healthcare Facilities and Hospitals
  • Educational Institutions
  • Airport and Transportation Terminals
  • Commercial Office Buildings
  • High-Traffic Retail Establishments
  • Hospitality and Hotel Entrances
  • Government and Municipal Buildings

Why Choose Norton Rixson Quality?

Norton Rixson H28 Series floor closers deliver professional-grade reliability with heavy-duty cast construction and Grade 1 certification for demanding commercial applications. Engineered to support doors up to 450 lb with precise closing control, these concealed floor closers provide long-term performance in high-traffic environments. 2 Year Limited warranty ensures dependable operation where consistent door control is essential.

Manufacturer Resources

Product Specs

Subcategory:
Floor Closers
Series:
SEC27 Series
Grade:
Grade 1
Warranty:
2 Year Limited
Door Swing:
Single Acting
Traffic Rating:
High Traffic
ANSI/BHMA:
ANSI/BHMA A156.4, Grade 1
Product Group:
Door Controls
Product Subgroup:
Door Closers - Floor
Product Type:
Floor Door Closers
Duty Level:
Heavy Duty
Commercial/Residential:
Commercial
Cover Type:
Cast iron cement case
Hold Open Feature:
No
Product Category:
Door Controls
Department:
Door Hardware

Norton Rixson SC-H28S-105-587-LH-626 – Frequently Asked Questions

1) Will the Norton Rixson H28 floor closer work on a center-hung door?
No. The H28 Series is built for offset-hung doors with a 3/4 inch offset, and the pivot geometry is not interchangeable with center-hung. If the door pivots on its centerline, you need a center-hung floor closer instead. Check the existing top pivot and threshold plate before ordering: an offset-hung door hangs off a pivot set in from the edge, and that 3/4 inch offset is what the H28 arm and spindle are cut for.
2) Which handing and swing degree do I order for a Norton Rixson H28 floor closer?
Four combinations are built: left hand or right hand, each with a 90 degree or 105 degree swing, all in 626 satin chrome. Handing is not field-reversible on a floor closer, so stand outside the opening and note which way the door swings away from you and which side the hinges/pivots are on. Pick the swing degree from what the door can physically clear, a door that opens into a return wall or a side light usually takes the 90; the 105 buys extra opening where nothing is in the way. The closer is single acting, so it swings one direction only.
3) What is the difference between the Norton Rixson H28 and the Dorma BTS75V or BTS80 floor closer?
All three are heavy duty concealed floor closers, and the choice usually comes down to what is already in the floor. The H28 is an offset-hung closer for 3/4 inch offset doors, Grade 1, non-hold-open, ordered by hand and swing degree. The Dormakaba BTS75V is Grade 1 and non-hold-open as well, and comes as a body with cement case, less spindle, so the spindle is specified separately to suit the door. The BTS80 is offered as a body only, heavy duty, without a case, which is the part you buy when the existing Dorma case stays in the slab and only the closer is being replaced. If you are replacing a failed Dorma unit in an existing floor, staying with the matching Dorma body avoids recutting concrete.
4) Can the H28 floor closer replace an existing floor closer in my slab?
Only if the existing pocket matches. The H28 comes as a complete closer in its own cast iron cement case, so a swap into an existing case is not what it is built for, you are setting a new case. When the goal is to reuse a case already in the floor, look for a body-only closer that matches the case brand and series, the way the Dormakaba BTS80 body is sold for existing BTS80 cases. Measure the pocket and identify the case before committing either way.
5) What is the closest equivalent to the Norton Rixson H28 floor closer from another manufacturer?
The Dorma BTS80 concealed floor closer is the nearest heavy duty counterpart. Both the H28 and the BTS80 are rated Heavy Duty concealed floor closers, so both are built for the same class of high traffic entrance where the closer is buried in the floor rather than mounted on the door or frame. The H28 carries ANSI/BHMA A156.4 Grade 1 certification and is engineered for offset-hung doors with a 3/4 inch offset, supporting doors up to 450 lb and 4'0" width. The BTS80 is sold as a body only, so a cement case and spindle are separate line items, while the H28 ships as a cast iron cement case design. Confirm the offset and door weight of the opening before treating the two as interchangeable.
6) What floor prep does a concealed floor closer like the H28 need?
A cast iron cement case is set into the floor, so this is not a surface-mount job. The slab has to be cut or formed for the case at the pivot point, and on an existing concrete floor that means core cutting and patching. Best case is new construction or a slab pour where the case can be set before finish flooring goes down. In exchange, nothing shows overhead: no closer body on the door, no arm across the frame, which is why these get specified on glass entrances and lobbies where the sight lines matter. Sweep and latch speed are set at the closer through independent valves once the door is hung.
7) Should I use a floor closer or an overhead closer on a heavy entrance door?
Floor closer, if the door is heavy, the opening is glass or narrow-stile aluminum, or the architect does not want hardware showing. The H28 carries 450 lb doors from below and the pivot takes the door weight, which an overhead surface closer cannot do on a glass leaf with no top rail to mount to. Overhead is the cheaper and far easier retrofit, no slab work at all, so on a standard hollow metal door in an existing building where appearance is not driving the decision, the overhead closer is usually the right call.
8) Can I slow down the door closing on a Norton Rixson floor closer?
Yes. Sweep and latch speed are adjusted independently at the closer, so you can bring the door across most of its arc slowly and still give it enough at the last few inches to latch. That is the usual fix for a door that either slams in a corridor or stalls short of the latch in a building running positive pressure. Adjustment is made at the closer body in the floor, with the cover plate off, not from the door.
9) What should a property manager check before swapping a Norton Rixson H28 floor closer for a Dorma BTS75V across a building's entrances?
Three things decide it. First, hold open behavior: the BTS75V is a non hold open closer and the Norton Rixson H28 is likewise configured with no hold open, so the door will self close in both cases and neither will stand the door open on its own. Second, the spindle: the BTS75V is supplied less spindle, so a spindle has to be specified separately to suit the door, while the H28 comes as a complete cast iron cement case closer. Third, the hanging method: the H28 is built for offset-hung doors with a 3/4 inch offset and single acting swing, so an entrance hung on center pivots is a different geometry entirely. Matching what is already in the other doors starts with confirming the pivot type and offset at each opening.
10) Does a Dorma BTS80 or BTS75V handle a 450 lb door the way a Norton Rixson H28 does?
The Norton Rixson H28 is engineered to support doors up to 450 lb and 4'0" width, with a high traffic rating and heavy duty cast construction. The Dorma BTS80 is likewise a Heavy Duty floor closer, putting it in the same duty class, and the BTS75V is a Grade 1 floor closer. When the opening carries a heavy monumental or glass front door near the top of that weight range, size the closer against the actual door leaf weight and width for whichever unit you specify, and confirm the floor structure can carry the mortised cement case.
11) What finish does the Norton Rixson H28 floor closer come in?
626 satin chrome, on every hand and swing combination built. That is the standard commercial finish and it sits alongside satin chrome and brushed stainless trim without a visible mismatch, which matters because the top pivot and threshold plate on the same opening are typically 626 or 630. If the rest of your building standard is dark bronze or black, the exposed cover plate will not match.
How fast can I get the Norton Rixson SC-H28S-105-587-LH-626 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 Norton Rixson SC-H28S-105-587-LH-626 come with a warranty?
Absolutely. The Norton Rixson SC-H28S-105-587-LH-626 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 Norton Rixson SC-H28S-105-587-LH-626?
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 Norton Rixson SC-H28S-105-587-LH-626 from ZenSupply?
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