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
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.
Features: ANSI Spring Size:
- BTS80 - 3
- BTS80 - 4, 6
- BTS80 F - 5
Non-handed for both single-and doube-acting doors:
- BTS80 - yes
- BTS80 - yes
- BTS80 F - no
Controlled closing with two adjustable valves:
- BTS80 - 175°–70°70°–0°
- BTS80 - 175°–70°70°–0°
- BTS80 F - 180°–70°7°–0°
Mechanical backcheck:
- BTS80 - no
- BTS80 - yes
- BTS80 F - yes
Delayed Action:
- BTS80 - yes
- BTS80 - yes
- BTS80 F - no
Multipoint hold open between 75° and 175°:
- BTS80 - yes
- BTS80 - yes
- BTS80 F - no
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.
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 75° and 175°.
- The closers will have selectable delayed action to allow delayed closing from 175° to 75°.
- The closers will have mechanical backcheck at approximately 70°.
- Dual valve adjustment will provide controlled closing speed from approximately 175° 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".
Optional Specifications:
- The closers should be used with sealing compound SC2 to pre-vent water or cleaning solvent from entering the cement case.
- Floor-concealed door closers for all fire doors shall be DORMA BTS80 F.
- The closers shall be single-acting and have controlled closing from a full 180°.
- A sweep range of 180°– 0° and latch range of 7°– 0° will help insure positive latching of the door.
Optional Plated Finishes: Brass:
- 605 (Bright)
- 606 (Satin)
Bronze:
- 611 (Bright
- 612 (Satin)
- 613 (Oxidized Satin Oil Rubbed)
Nickel:
- 618 (Bright)
- 619 (Satin)
Chrome:
- 625 (Bright)
- 626 (Satin)
Standard Sprayed Finishes: Aluminum:
- 689
Bronze:
- 691 (Dull)
- 690 (Statuary)
- 695 (Dark Duranodic)
Gold:
- 696
Black:
- 693
- Optional DORMA Custom Color or Designer Color FinishesContact Customer Service.
Warranty:
- For details, refer to DORMA Limited Warranty on our website at go.dorma.com/terms.
BTS80 Series 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.
- Optional sealing compound SC2 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.
BTS80 Technical Details:
- Closer body is non-handed.
- Mechanical backcheck at approximately 70°.
(excluding size 3, where backcheck is removed to meet barrier-free through 90° of opening for easier passage)
- Selectable delayed action between 175° and 75°. 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 175°.
- Selectable multipoint hold open between approximately 75° and 175°.
- Adjustment for start of hold open range or when delayed action releases. Adjustable between 75° and 105°.
BTS80 F Technical Details:
- U.L. listed for use with fire doors.
- Closer body is handed.
- Non-hold open only.
- Mechanical backcheck at approximately 70°.
- Dual thermostatic control valves combined with special hydraulic fluid provide controlled closing from 180°.
- Recommended for applications using a wall magnet to hold a door open at 180°.
RESOURCES & DOWNLOADS
Dorma BTS80 Door Closer Technical Brochure
Manufacturer Resources
Product Specs
- Category:
- Door Controls
- Product Group:
- Door Controls
- Series:
- BTS80 Series
- Duty Level:
- Heavy Duty
- ADA Compliant:
- No
- Hold Open:
- Yes
- Fire Rated:
- No
- Model:
- BTS80G
- Product Subgroup:
- Door Closers - Floor
- Product Type:
- Floor Door Closers
- Subcategory:
- Floor Closers
- Door Weight:
- 660
- Handing:
- Handed
- Door Swing:
- Single Acting
- Commercial/Residential:
- Commercial
- Size:
- 54"