Dorma BTS75V - Floor Closer Bo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,685.00
$1,004.78
Dormakaba Dorma BTS75V - Floor Closer Body Only, Adjustable Size 1-4, 105° Hold Open with Cement Case, Less Spindle BTS75V-105

Dorma BTS75V - Floor Closer Body Only, Adjustable Size 1-4, 105° Hold Open with Cement Case, Less Spindle

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Model: BTS75V-105

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

$1,685.00
$1,004.78
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DORMA BTS75V Series Door Closer

Floor-Concealed Door Closer

The BTS75V 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 BTS75V suitable for virtually any floor covering or threshold application.

Door closer ANSI/BHMA Grade 1 certified.

  • Concealed installation
  • Adjustable spring size 1-4
  • Non-handed for single and double-acting doors
  • Mechanical backcheck

Dormakaba BTS75V Product details

Adjustable spring sizes

Adjustable spring power from size 1–4 allows the necessary adjustment required for both barrier-free and non-barrier-free openings, giving ultimate installation flexibility.

Applications

Trouble-free performance under adverse climatic and traffic conditions makes the BTS75V 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 BTS75V floor-concealed closer.

 

Downloads & Resources

Installation Instructions, Specifications, Technical Drawings

Manufacturer Resources

Product Specs

Product Group:
Door Controls
Series:
BTS75V Series
ADA Compliant:
No
Grade:
Grade 1
Product Subgroup:
Door Closers - Floor
Commercial/Residential:
Commercial
Controlled Closing Range:
175° to 15° (Sweep Range) and 15° to 0° (Latch Range)
Maximum Door Weight:
260
Closer Action:
Single and Double Acting Doors
Door Width:
2' to 3' 6" (Interior); 2' to 3'(Exterior)
Product Type:
Floor Door Closers
Subcategory:
Floor Closers
Product Model:
BTS75V
Product Function:
105 Degree Hold Open
Spring Size Details:
Adjustable 1-4
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba BTS75V-105 – Frequently Asked Questions

1) Will the Dorma BTS75V floor closer handle a 3 ft exterior entrance door?
Yes, that is within range. The BTS75V is rated for doors 2 ft to 3 ft 6 in wide on interior openings and 2 ft to 3 ft on exterior openings, with a maximum door weight of 260 lbs. An exterior door at a full 3 ft 6 in is outside what this closer is rated to control, so a wider entrance needs a larger floor closer.
2) Does the BTS75V-105 come with a spindle, and what else do I need to order to finish the install?
No spindle is included. The BTS75V-105 is supplied as the closer body with its cement case only, less spindle, so the spindle has to be specified separately to match the floor covering and threshold build-up at the opening. Dorma offers a range of interchangeable spindles for the BTS75V for exactly that reason. Top pivot and door hardware are also separate from this body-only part.
3) Do I have to order a left hand or right hand version of the Dorma BTS75V?
Handing is not a factor. The BTS75V is non-handed and works on both single-acting and double-acting doors, so one body covers left hand, right hand, and doors that swing both ways. That is useful on a building where openings are mixed, since the same part stocks for all of them.
4) Can one Dorma BTS75V be adjusted for both a light interior door and a heavier entry door?
Yes. Spring power on the BTS75V is field adjustable across sizes 1 through 4, so the same closer body covers a light barrier-free interior door and a heavier entrance without swapping the unit. Contractors carrying it on a multi-door job can set each opening after hanging rather than ordering a fixed spring size per door.
5) Is the Dorma BTS75V Grade 1, and does it meet ADA opening force?
ANSI/BHMA Grade 1 certified, which is the heaviest commercial duty rating and what most institutional and MRO specs call for. It is not an ADA compliant closer, so on an opening that has to meet ADA opening force you need a different unit or a power operator. Facilities standardizing across a building should sort their ADA openings out separately from the rest.
6) Can a floor closer go in a thin concrete slab, or do I need a deeper pour?
The BTS75V has a compact body specifically so it can be set in thin slab concrete subfloor construction, where a larger floor closer will not fit. That is the usual reason it gets specified on a renovation over an existing slab. It ships with its cement case, which is what gets set in the floor before the pour or patch.
7) The door hangs on a 3/4 inch offset pivot, not center-hung. What floor closer should be used instead of the BTS75V?
The BTS75V is a floor-concealed closer for single and double-acting doors driven from a spindle at the pivot point, and it is supplied less spindle so the spindle is matched to the floor covering and threshold. For a 3/4 inch offset hung leaf, the Norton Rixson 20 Series is a 3/4 inch offset hung floor closer with 180 degree door swing capability, and the Norton Rixson 127 Series is a heavy duty 3/4 inch offset floor closer built for deep reveal applications. Offset and center-hung geometry are not interchangeable, so the pivot layout decides this rather than the closer's power range.
8) What is the closest Grade 1 alternative to the Dorma BTS75V floor closer for a center-hung opening?
The BTS75V is a Grade 1 floor-concealed closer, non-handed for single and double-acting doors, with adjustable spring power from size 1 to 4. The nearest Grade 1 peer in floor-concealed form is the Norton Rixson H28 Series heavy duty concealed floor closer, though it is built for offset-hung doors rather than the single and double-acting range the BTS75V covers. If the door is offset-hung on pivots, the H28 is the one to spec; if the leaf swings both ways on a center-hung spindle, stay with the BTS75V.
9) Is the Norton Rixson 25 Series cement case a substitute for the Dorma BTS75V?
No. The Norton Rixson 253000 is a floor closer cement case in heavy-duty galvanized steel construction - it is the buried box the closer sits in, not a closer. The BTS75V is the closer body itself, adjustable spring size 1 to 4, and it is ordered with its cement case. Anyone replacing a worn-out closer in an existing floor pocket needs a closer body; anyone pouring new slab and setting the pocket needs the case. They are two different line items on the same install, not two ways to buy the same thing.
10) What does the 105 degree hold open on a floor closer actually do?
The BTS75V-105 holds the door open when it is pushed to roughly 105 degrees and releases when the door is pulled back off that point. It is the version to specify for openings where you want the door parked open for deliveries or move-ins. Order a non-hold-open body instead for fire-rated or egress openings that must self-close every time.
11) How much of the door swing does the BTS75V control on the way closed?
Control runs from 175 degrees down to 15 degrees in the sweep range, then 15 to 0 degrees in the latch range, so the door is under control across essentially the full swing rather than free-swinging back to near-closed. The closer also has mechanical backcheck, which cushions the door before it can slam into an adjacent wall on a windy exterior opening.
12) What is the heavy duty alternative if the BTS75V is not enough closer for the door?
For doors beyond the BTS75V's 260 lb and 3 ft 6 in interior limit, the Norton Rixson H28 Series is a heavy duty concealed floor closer for offset-hung doors, Grade 1. Norton Rixson also lists the 25 Series floor closer cement case in heavy duty galvanized steel if you are replacing the case in the floor rather than the whole closer.
13) Difference between the Norton Rixson 20 Series and the 127 Series floor closer for an offset hung door?
Both are 3/4 inch offset floor closers. The Norton Rixson 20 Series is rated standard duty and carries 180 degree door swing capability. The Norton Rixson 127 Series is rated heavy duty and is built for deep reveal applications, where the door face sits back from the frame far enough that a standard offset arm geometry will not reach. Measure the reveal at the jamb and confirm the required swing before choosing between them.
14) For a standard-duty interior door, is a heavy duty floor closer required or is there a lighter option?
The Dorma BTS75V handles interior doors 2 feet to 3 feet 6 inches wide and up to 260 pounds, with spring power adjustable across sizes 1 through 4, so one unit covers light interior leaves and heavier ones without changing model. Among the offset-hung peers, the Norton Rixson 20 Series is the standard duty option, while the 127 Series and the H28 Series are both rated heavy duty. Match the duty level to the leaf weight and traffic, and confirm the pivot type first, since the 20 Series is 3/4 inch offset hung.
15) Which floor closers meet a Grade 1 requirement on a facility spec?
The Dorma BTS75V is ANSI/BHMA Grade 1 certified. Among the floor closer peers, the Norton Rixson H28 Series concealed floor closer is Grade 1, and the Norton Rixson 253000 cement case is Grade 1 as well. For an institution standardizing on Grade 1 across a building, note that the BTS75V is a commercial closer and is not ADA compliant, so barrier-free openings governed by an ADA opening-force requirement need to be reviewed separately from the grade line on the spec.
16) Need a floor closer that holds the door open at 105 degrees - what are the options?
The Dorma BTS75V-105 is the 105 degree hold open version of the BTS75V, controlling the door through a sweep range of 175 to 15 degrees and a latch range of 15 to 0 degrees. The Norton Rixson H28 Series concealed floor closer is also offered in a 105 degree configuration, but it is an offset-hung unit. If a wider swing is what the opening actually needs rather than a hold open point, the Norton Rixson 20 Series carries 180 degree door swing capability.
17) Is the Dorma BTS75V suitable for a high traffic commercial entrance?
It is a commercial-rated closer, ANSI/BHMA Grade 1, built to run under adverse climate and traffic conditions. For a property manager, that means it belongs on a lobby or storefront door that cycles all day rather than a residential opening. Being concealed in the floor, there is also no closer body on the door or frame to get hit or tampered with.
How fast can I get the Dormakaba BTS75V-105 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 BTS75V-105 come with a warranty?
Absolutely. The Dormakaba BTS75V-105 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 BTS75V-105?
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