BTS75V Fixed Hold Open Floor Spring Unit - Box & Spindle

The DORMA BTS 75 V is a highly adaptable floor spring suitable for all standard single-, and double-action doors with widths up to 1100 mm, with its closing force individually regulated by means of an adjustment screw.

• Concealed Installation
• Universal application range
• Adjustable closing force
• For single and double-action doors
• Maximum ease of use
• Hold-Open

Cover plate sold separately.

Universal application range

Whether standard, narrow or wide, whether LH, RH, or single or double-action ? the DORMA BTS 75 V door spring is designed for all types of doors. A comprehensive program of accessories ensures that it can be used successfully with a wide variety of door constructions and floor coverings.

Maximum reliability and quality

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

Benefits for the trade/distributor

Reduced stocking requirements thanks to separate, interchangeable spindles

Streamlined product range offering all key functions

Benefits for the installer

Suitable for installation with LH or RH single and double action doors

Interchangeable spindles enable easy adaptation to structural conditions ? even when retrofitted

Benefits for the architect/specifier

Concealed installation for maximum visual elegance

All essential functions provided

Proven, robust design

Benefits for the user

Constant, temperature independent closing cycle

Highly efficient mechanism gives maximum user convenience

Specifications

Spring strength - EN 1-4 Adjustable (11-32NM)

Max door width - 1100mm

Max door weight - 120kg

Features - Adjustable sweep speed, adjustable latching speed, fixed backcheck, hold-open