Dormakaba BTS80D SZ4 Concealed In-Floor Closer w/ 3/4" Offset, Size 4

Dormakaba BTS80D Grade 1 Concealed Floor Closer, 3/4 Inch Offset, Size 4, 3/4" Spindle, Handed

The BTS80 Series of floor concealed door closers offers 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. 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.

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.

ANSI Size 4: 2'-6" to 4'-0" (Interior); 2'-6" to 3'-6" (Exterior)

Spindle: 3/4" Spindle (74010)

Technical Details
Compact closer body and cement case 2-3/8" deep suited for thin slab concrete construction.
• Accommodates doors weighing up to 660 lb and 4'-6" wide interior and 4'-0" exterior.
• Closer adjustment in cement case provides lateral and longitudinal adjustment of 1/4" and height adjustment of 5/32".
• A pressure relief valve protects closer from damage caused by forced closing.
• If door hardware or adjacent structures interfere with maximum opening, an auxiliary stop should be installed.

Specifications
All floor-concealed door closers shall be DORMA BTS80 Series employing a cam and roller mechanism. The closers shall be capable of controlling interior or exterior doors weighing up to 660 lb and measuring up to 4'-0" wide exterior and 4'-6" interior. The closers will have selectable multipoint hold open between approximately 75º and 175º. The closers will have selectable delayed action to allow delayed closing from 175º to 75º. The closers will have mechanical backcheck at approximately 70º. Dual valve adjustment will provide controlled closing speed from approximately 175º opening range, even in cold temperature conditions. The closer will provide adjustment within the cement case to allow lateral and longitudinal adjustment of 1/4" and vertical height adjustment of 5/32". Field interchangeable spindles will be available to provide bottom door clearances ranging from 5/16" to 2-5/16".

Certification
The DORMA BTS80 F Series is listed by U.L. and C.U.L. under their continuing reinspection programs.

The DORMA BTS80 Series is certified to the requirements of ANSI/BHMA A156.4 for grade 1 closers.

Finishes: 605, 606, 612, 613, 619, 625, 626

Model: Dormakaba BTS80D SZ4 RH 626, BTS80D SZ4 LH 626