Measurements
The economic floor spring
specially designed
for double action doors
Special shallow design
Optional hold-open
Successfully tailored to
satisfy the special requi-
rements governing floor
springs for double action
doors, the DORMA BTS 65
also offers a particularly
shallow design and thus all
the advantages of a reduced
installation depth. With two
closing ranges and a choice
of models, the BTS 65 can
fulfil virtually any appli cation
requirement while providing
all the reliability associated
with assured quality from
DORMA.
Certified to ISO 9001.
For the trade
2 Outstanding value for
money.
2 Wide range of accessories
to accommodate various
installation situations.
For the installer
2 Easy installation thanks to
shallow design.
2 Easy to adapt to individual
requirements with dual
valve control 130° to 0°
and 130° to 20°.
2 Interchangeable spindle
inserts available to suit
site conditions.
For the architect/specifier
2 Minimum floor recess
dimension.
2 Rugged construction for
door weights up to 100 kg.
2 DORMA quality.
For the user
2 Smooth closing operation
virtually temperature-
immune.
2 Low effort requirement
ensures easy door
operation.
2 Optional integrated single-
point hold-open at 90°.
Benefits
= Door stop
Closing ranges
The floor spring has two
controlled closing ranges:
Valve 1: 130° – 0° sweep
Valve 2: Increases the
closing speed between
130° and 20°.
Hold-open
With optional integrated sin-
gle-point hold-open at 90°.
Standard and optional functions
1 Infinitely variable closing
speed in the range
130° – 0°.
2 Second closing range
130° – 20°.
3 Hold open at 90°
(optional extra).
Spring strength Size EN 3 EN 4
Standard and
1)
≤ 1950 mm 2 –
external doors
1) 2)
≤ 1100 mm – 2
Max. door weight in kg 100 100
Closing speed variable
by valve adjustment 2 2
Backcheck – –
Delayed action – –
Hold-open point 90° " "
Weight in kg, approx. 4,0 4,0
Dimensions in mm Length 276 276
Width 108 108
Height 040 040
Door closer tested to EN 1154 2 2
mark for building products 2 2
(products with factory-fitted hold-open
do not carry a CE mark)
2 Yes – No " Option
1)
For applications involving particularly high or heavy doors,
and doors which have to close against wind or draught conditions,
the next larger closer size or the DORMA BTS 80 should be selected.
2)
Max. opening 130°. Door stop necessary for doors which can open
further than 130°.
Technical Data BTS 65
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