Dorma BTS80 Series Floor Closer

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. 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

Features:

• Closer body is non-handed.
• Mechanical back check at approximately 70 degrees.
• Selectable delayed action between 175 and 75 degrees. 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 degrees.
• Selectable multipoint hold opens between approximately 75 and 175 degrees.
• Adjustment for start of hold open range or when delayed action releases. Adjustable between 75 and 105 degrees.