Descripción

Application: Concealed in floor door closer that closes a door in a controlled manner, preventing it from slamming

Spring Tension Sizes:
• Adjustable spring size 1–4
• Can be installed and adjusted to meet 8.5 lb maximum opening force requirements for exterior doors.
• Accommodates doors weighing up to 260 lb and measuring up to 3′-6″ wide interior and 3′-0″ exterior.

BTS75V Barrier Free(BF):
• Opening force 5 lb or less on interior doors/8.5 lb or less on exterior doors where door without closer attached is 1 lb opening force or less.
• Mechanical backcheck eliminated to meet the barrierfree opening force requirement through 90° of opening.
• Selectable delayed action between 175° and 70°
• All other details are the same as the BTS75V

BTS75V NHO / BTS75V BF NHO:
• Non-hold open unit is U.L. listed for use with fire rated doors when door swing is limited to 175° with an auxiliary stop.

Product Description & Features:
• Closer Body & Cement Case Only, Spindle & Parts Not Included
• Compact closer body and cement case 2″ deep suited for thin slab concrete construction.
• Closer body is non-handed.
• Mechanical backcheck at approximately 70º
• Dual thermostatic control valves combined with special hydraulic fluid provide controlled closing from 175º
• Optional single point hold open units available for 90º or 105º
• A pressure relief valve protects closer from damage caused by forced closing.
• Closer adjustment in cement case provides 3/8″ lateral, 1/4″ longitudinal, and 5/32″ height adjustment.
• Universal application, individual functions and assured quality.
• Whether standard, narrow or wide, whether LH, RH, or single or double action
• BTS75V door springs are designed for all types of door. A comprehensive program of accessories ensures that they can be used successfully with a wide variety of door constructions and floor coverings.

Certifications:
• The Dorma BTS75V and BTS75V BF non-hold open versions are listed by UL and CUL under their continuing reinspection programs.
• The Dorma BTS75V Series is certified to the requirements of ANSI/BHMA A156.4 for grade 1 closers.
• The BTS75V BF meets the opening force requirements of ANSI/BHMA A117.1 for barrier free interior and exterior doors.