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> New dorma BTS80 bf door closer with cement case *brand *
New dorma BTS80 bf door closer with cement case *brand *
Designed to meet 8.5 pound maximum opening force
requirements for exterior barrier-free doors.
Dual thermostatic control valves combined with special
hydraulic fluid provide controlled closing from 175 .
Selectable multipoint hold open between approximately 75
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.
Adjustment for start of hold open range or when delayed
action releases. Adjustable between 75 and 105 .
Mechanical backcheck eliminated to meet the barrier-free
opening force requirement through 90 of opening.
