Finish: SS

Spring Strength: EN4/EN6

Max. Door Weight: 300kgs

Max. Door Width: 1100/1400mm

With backcheck & delayed action function (adjustable)

Whether standard, narrow or wide, whether LH, RH, or single or double action DORMA BTS 80 and BTS 75 V 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.

Thanks to a wide range of functions, which can be individually selected to suit different requirement, DORMA BTS 80 and BTS 75 V floor springs offer maximum reliability and quality.


Certified to ISO 9001.

Benefits

For the trade
• Reduced stock requirements because of separate, interchangeable spindles.
• Slim product range offering all key functions.

For the installer
• Suitable for installation.
• with LH or RH single and double action doors.
• Interchangeable spindles.

For the architect/specifier
• Concealed installation for maximum visual elegance.
• All essential functions provided.
• Proven, robust design capable of withstanding leaf weights of up to 300 kg (BTS 80).

For the user
• Constant, temperature independment closing cycle.
• Highly efficient mechanism gives maximum user convenience.

1) For applications Involving particularly high or heavy loads, and doors which have to close against wind or draught conditions, the next larger spring strength should be selected.