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Dorma BTS 80 Floor Concealed Closer - REPLACEMENT BODIES ONLY

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Quick 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. 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.

Dorma BTS 80 Floor Concealed Closer

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  • Dorma BTS 80 Floor Concealed Closer

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REPLACEMENT BODIES ONLY DOWNLOADS Product Manual 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 pounds 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". Technical Data • Compact closer body and cement case 2-3/8" deep suited for thin slab concrete construction. • Accommodates doors weighing up to 660 pounds 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. • Optional sealing compound SC-1 prevents water or cleaning solvent from entering the cement case. • If door hardware or adjacent structures interfere with maximum opening, an auxiliary stop should be installed. • Closer body is non-handed. • Mechanical backcheck at approximately 70º. • Selectable delayed action between 175º and 75º. Extends the closing cycle to allow unobstructed passage. • Delayed action is functional when hold open is not engaged. • Dual thermostatic control valves combined with special hydraulic fluid provide controlled closing from 175º. • Selectable multipoint hold open between approximately 75º and 175º. • Adjustment for start of hold open range or when delayed action releases. Adjustable between 75º and 105º.

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