Dorma BTS80F 3 Hour Fire Rated...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,826.00
$1,668.90
Dormakaba Dorma BTS80F 3 Hour Fire Rated Concealed Floor Door Closer, 3/4" Offset Mounting BTS-80F

Dorma BTS80F 3 Hour Fire Rated Concealed Floor Door Closer, 3/4" Offset Mounting

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Model: BTS80F RH SZ5 626
$2,826.00
$1,668.90
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,826.00
$1,668.90
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OVERVIEW

The BTS80 Series of floor-concealed door closers offer adaptability to almost any installation. The closer's compact body permits its use where a larger closer would be prohibitive. Versatility allows installation in thin slab concrete subfloor construction. A wide selection of interchangeable spindles makes the BTS80 suitable for virtually any floor covering or threshold application.

Door closer ANSI/BHMA Grade 1 certified.

  • Concealed installation
  • Fixed spring sizes
  • Non-handed for single and double-acting doors
  • Mechanical backcheck

 

FEATURES

Size Specifications

Size 3 - Light Opening Force, No Backcheck;

Size 4 - No Need to Specify;

Size 5 - For use w/Fire Pkgs, No Delay, No Hold Open;

Size 6 - Strong;

Versatile and adaptable

Because the BTS80 can control exceptionally heavy single- and double-acting doors, you can incorporate the floor closer into almost any design to meet most materials, size, and weight requirements.

Applications

Trouble-free performance under adverse climatic and traffic conditions makes the BTS80 floor-concealed closer dependable and a perfect choice for even the most rigorous applications. For total control and uncompromising creativity for any door opening, specify a BTS80 floor-concealed closer.

 

RESOURCES & DOWNLOADS

Dorma BTS80 Door Closer Technical Brochure

Dorma BTS80 Door Closer Brochure

Dorma BTS80 All Downloadable Guides

Manufacturer Resources

Product Specs

Product Group:
Door Controls
Series:
BTS80 Series
Duty Level:
Heavy Duty
ADA Compliant:
No
Product Subgroup:
Door Closers - Floor
Product Type:
Floor Door Closers
Subcategory:
Floor Closers
Door Weight:
660
Door Swing:
Single Acting
Commercial/Residential:
Commercial
Hang Type:
Offset Hung
Product Model:
BTS80F
Product Size:
54"
Fire Rating:
Yes
Hold Open Feature:
Yes
Mounting Method:
Offset
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba BTS80F RH SZ5 626 – Frequently Asked Questions

1) Do I have to order a Dorma BTS80F left hand or right hand?
Handing has to be specified. The BTS80F is sold as a left hand or right hand unit in every size and finish combination, and it is configured for single acting swing. The BTS80 closer body itself is non-handed for single and double acting doors, but the F fire rated configuration is ordered handed and single acting, so determine the swing direction at the opening before you order.
2) Can I use the Dorma BTS80F on a fire rated door opening?
Yes, it is a fire rated floor closer, which is why the F suffix is on the model. One ordering caution comes straight from the size table: size 5 is the size specified for use with fire packages, and in that configuration there is no delay and no hold open. If your fire door needs a listed closer, size 5 is the one to spec, and you give up the hold open function to get it.
3) Is the Dorma BTS80F ADA compliant for opening force?
No. The BTS80F is not an ADA compliant closer. If the opening is on an accessible route and has to meet an ADA opening force limit, this is the wrong closer for it. Within the BTS80 sizing, the light opening force unit is size 3, but that alone does not make the product ADA compliant, so do not spec the BTS80F where accessibility opening force is a requirement.
4) What is an equivalent heavy duty concealed floor closer to the Dorma BTS80F for a 3/4 inch offset hung door?
The Norton Rixson 127 Series is a heavy duty 3/4 inch offset floor closer built for deep reveal applications, so it lands on the same 3/4 inch offset geometry the BTS80F uses. The Norton Rixson H28 Series is also a heavy duty concealed floor closer for offset-hung doors and carries an ANSI/BHMA Grade 1 rating, matching the BTS80F's Grade 1 certification. Both are concealed-in-floor units for offset hung doors rather than center hung, so the door prep and pivot line stay in the same family.
5) Does a Norton Rixson cement case work as a substitute for a Dorma BTS80F floor closer?
No. The Norton Rixson 25 Series cement case is a galvanized steel case that gets set into the floor slab; it is the housing the closer body drops into, not a closer. The BTS80F is the closer mechanism itself, with fixed spring sizes, mechanical backcheck and hold open. If a floor closer is being replaced, the case may already be in the slab and only the closer body is needed; a case on its own will not close a door.
6) Will a floor concealed closer fit a thin slab or shallow concrete subfloor?
That is one of the reasons to pick the BTS80 body over a bigger floor closer. The closer case is compact enough to be installed in thin slab concrete subfloor construction, where a larger cement case will not fit the pour depth. The BTS80 also takes a range of interchangeable spindles, so the unit adapts to the floor covering thickness or threshold you are finishing over rather than forcing the floor to suit the closer.
7) Is the Dorma BTS80 floor closer Grade 1?
Yes, the BTS80 door closer is ANSI/BHMA Grade 1 certified. For an institutional or MRO spec, that is the top commercial grade for a closer and is usually what a facility standard or a drawing calls out. Grade 1 plus the heavy duty rating is what lets it sit under high traffic entrance doors rather than interior office openings.
8) What is the difference between the Dorma BTS80F and a Norton Rixson floor closer for a 3/4 inch offset door?
All are heavy duty floor closers for offset hung doors, but they differ in what they bring. The Dorma BTS80F is the fire rated, Grade 1 unit with a 660 lb door weight rating. The Norton Rixson 127 Series is a heavy duty 3/4 inch offset closer aimed at deep reveal applications. The Norton Rixson H28 Series is a heavy duty Grade 1 concealed closer for offset hung doors. If the opening is not fire rated and the load is lighter, the Norton Rixson 20 Series is a standard duty 3/4 inch offset hung closer with 180 degree swing capability.
9) Do I need a cement case with a concealed floor closer, or is it included?
A floor concealed closer is installed in the floor, so the pour needs a case to set it in. The BTS80F is the closer unit itself. Where a job needs the case as a separate line, the Norton Rixson 25 Series floor closer cement case is a heavy duty galvanized steel Grade 1 case carried for that purpose. On a new pour, sort the case and the floor prep before the closer arrives, because the concrete work drives the schedule.
10) Is there a lighter duty floor closer than the Dorma BTS80F for a storefront door that does not see heavy traffic?
The Norton Rixson 20 Series is a standard duty 3/4 inch offset hung floor closer with 180 degree door swing capability. It sits on the same 3/4 inch offset hung arrangement as the BTS80F but is rated standard duty rather than the BTS80F's heavy duty, which is the dividing line for an opening that is not carrying a 660 pound door or continuous traffic. The BTS80F is the one to hold onto when the leaf is heavy or the entry runs all day.
11) What floor closer should be used instead of the Dorma BTS80F when the frame has a deep reveal?
The Norton Rixson 127 Series is a heavy duty 3/4 inch offset floor closer specified for deep reveal applications, which is the condition it is built around. The BTS80F is a heavy duty 3/4 inch offset hung closer whose strength is adaptability to thin slab concrete subfloor construction and a wide selection of interchangeable spindles for different floor coverings and thresholds. Pick by which condition governs the opening: reveal depth at the frame, or floor build-up and slab depth.
12) Which floor closers carry a Grade 1 rating for a facility standardizing on one closer spec?
The Dorma BTS80F is ANSI/BHMA Grade 1 certified. On the Norton Rixson side, the H28 Series concealed floor closer for offset-hung doors is Grade 1, and the 25 Series cement case is Grade 1 heavy duty construction. The Rixson 20 Series is a standard duty unit, so a facility writing Grade 1 into its hardware standard would not carry that one in the same line item.
13) What finishes does the Dorma BTS80F cover plate come in, and can I match the rest of my hardware?
Five finishes: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 625 bright chrome, and 626 satin chrome. Those are standard BHMA finish numbers, so matching them to existing lever sets, pivots, or push bars across a building is a number to number match rather than a guess. All five are available in sizes 4, 5, and 6 in both hands, with the exception that 626 satin chrome is the chrome option carried on the size 5 and 6 units as well.
14) Will a Dorma BTS80 floor closer work under an exterior door in a cold or wet climate?
Yes. The BTS80 floor concealed closer is intended for use under adverse climatic and traffic conditions, which is the usual reason a floor closer is chosen over an overhead unit at a main entrance. Combined with the heavy duty rating and the 660 lb door weight capacity, it suits high traffic exterior entrances rather than sheltered interior openings.
How fast can I get the Dormakaba BTS80F RH SZ5 626 delivered?
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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 Dormakaba BTS80F RH SZ5 626 come with a warranty?
Absolutely. The Dormakaba BTS80F RH SZ5 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 Dormakaba BTS80F RH SZ5 626?
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