DORMA BTS80-4Click To Copy BTS80 Concealed Floor Closer Body Only

Door CloserBTS80 Series

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.

Features:

• ANSI/BHMA Grade 1 certified

• Concealed installation

• Fixed spring sizes

• Non-handed for single and double-acting doors

• Mechanical backcheck

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.

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.

• Closer body is non-handed

• Mechanical backcheck at approximately 70º (excluding size 3, where backcheck is removed to meet barrier-free through 90° of opening for easier passage)

• 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.