Dorma/Dormakaba BTS80 Floor Closer - REPLACEMENT BODIES

The DORMA BTS80 Series Floor Concealed Door Closer Replacement Body is designed for replacing existing BTS80 closer bodies while reusing the existing accessories. Engineered with DORMA's proven cam and roller mechanism, the BTS80 delivers smooth, reliable door control for high-traffic commercial applications.

Suitable for both interior and exterior doors, the BTS80 provides exceptional durability, precise adjustment, and long service life.

NOTE: Replacement Body In Cement Case Only. (The spindle, cover plate, and accessories are sold separately.)

Available Closer Sizes

ANSI Size 3

• Up to 3'-0" exterior doors
• Up to 3'-6" interior doors

ANSI Size 4

• Up to 3'-6" exterior doors
• Up to 4'-0" interior doors

ANSI Size 6

• Up to 4'-0" exterior doors
• Up to 4'-6" interior doors

DOWNLOADS

Brochure

Features

• Replacement closer body for DORMA BTS80 floor closers
• Heavy-duty cam and roller mechanism
• Non-handed design
• Suitable for interior and exterior doors
• Pressure relief valve protects against abusive door closing
• Mechanical backcheck at approximately 70°
• Selectable delayed action from approximately 175° to 75°
• Adjustable hold-open release point between approximately 75° and 105°
• Field-interchangeable spindles available for various door clearances

Technical Specifications

• Maximum door weight: 660 lbs.
• Compact 2-3/8" deep closer body and cement case
• Fits thin slab concrete construction
• Adjustable within cement case:
• 1/4" lateral adjustment
• 1/4" longitudinal adjustment
• 5/32" vertical height adjustment
• Field-interchangeable spindles available for bottom door clearances from 5/16" to 2-5/16"
• Pressure relief valve protects against forced closing
• Mechanical backcheck at approximately 70°
• Selectable delayed action extends closing time for easier passage
• Delayed action functions when hold-open is disengaged
• Dual thermostatic valves ensure smooth, controlled closing from approximately 175°
• Adjustable multipoint hold-open from approximately 75° to 175°
• Adjustable delayed action/hold-open release point between approximately 75° and 105°
• Optional SC-1 sealing compound available to help prevent water and cleaning solutions from entering the cement case

Note: If adjacent walls, hardware, or other obstructions limit the door's opening angle, an auxiliary door stop should be installed to prevent damage to the closer.

Dorma/Dormakaba BTS80 Floor Closer - REPLACEMENT BODIES