DormaKaba Architectural Hardware

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.

• Versatile and adaptable: 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.
• Applications: 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:

• Concealed installation
• Fixed spring sizes
• Non-handed for single and double-acting doors
• Mechanical backcheck

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.
• Closer body is non-handed.
• Mechanical backcheck at approximately 70-deg (excluding size 3, where backcheck is removed to meet barrier-free through 90-deg of opening for easier passage).
• Selectable delayed action between 175-deg and 75-deg. 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-deg.
• Selectable multipoint hold open between approximately 75-deg and 175-deg.
• Adjustment for start of hold open range or when delayed action releases. Adjustable between 75-deg and 105-deg.

Spindles:

• Offset Spindles: Spindles are available with a 3-deg offset for additional pressure to hold door in the closed position. Normally, this is only necessary for center-pivoted single acting applications. However, they can also be used with other applications to compensate for templating errors. Specify hand of offset spindle when ordering.
• Cover Plate: Universal cover plate 7410, suitable for left hand/right hand, 3/4" offset, 1-1/2" offset, and center pivoted doors. Material is stainless steel or brass depending on the plated finish specified.

Finishes:

• Optional Plated Finishes
• Brass: 605 (Bright) or 606 (Satin).
• Bronze: 611 (Bright), 612 (Satin), or 613 (Oxidized Satin Oil Rubbed).
• Nickel: 618 (Bright) or 619 (Satin).
• Chrome: 625 (Bright) or 626 (Satin).
• Standard Sprayed Finishes
• Aluminum: 689.
• Bronze: 691 (Dull), 690 (Statuary), or 695 (Dark Duranodic).
• Gold: 696.
• Black: 693.
• Optional DORMA Custom Color or Designer Color Finishes
• Special Order