DATA & FEATURE
Spring strength EN 2 EN 3 EN 4
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°. The economic double action
![](http://setiaabadi.com/images/pdf.jpg)
A compact and economical floor spring, only 40 mm of height and indicated for doors with weight of up to 100 kg. Presented in two power versions: EN 3 and EN 4. Closing speed can be adjusted by two independent valves.
DATA & FEATURE
Spring strength EN 2 EN 3 EN 4
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°. The economic double action
A compact and resistant hydraulic spring, only 40 mm of height and indicated for doors with weight of up to 100 kg.
DATA & FEATURE.
![](http://setiaabadi.com/images/pdf.jpg)
Hydraulic spring with EN 1-4 power regulation for doors up to 1100 mm of width and 120 kg of weight. Versatile: adjustable speed, mechanic back-check and interchangeable spindles.
DATA & FEATURE
Spring strength (EN) 3 4 6 1–4
Spring strength adjustment Standard and ≤ 1950 mm
external doors1) ≤ 1100 mm ≤ 1400 mm
Fire and smoke check doors Max. leaf weight (kg) 120
Non-handed, suitable for single and double action doors
Closing speed 175° – 0° adjustable by valve 175° – 15° ,15° – 0°
Backcheck, mechanical,Delayed action adjustable by valve (selectable alternative to the hold-open feature) Hold-open Adjustable ,Fixed 90°, Fixed 105° ,Coverplate cement box secured to floor spring
Weight in kg 7.1 3.0
Dimensions in mm Length 341 285
Width 178 182
Height 160 150
Floor spring tested to EN 1154
mark for building products
(products with factory-fitted hold-open
do not carry a CE mark)
1) For particularly heavy doors and doors which have to close
against wind resistance, we recommend the DORMA BTS 80.
DATA & FEATURE
Spring strength (EN) 3 4 6 1–4
Spring strength adjustment Standard and ≤ 1950 mm
external doors1) ≤ 1100 mm ≤ 1400 mm
Fire and smoke check doors Max. leaf weight (kg) 300
Non-handed, suitable for single and double action doors
Closing speed 175° – 0° adjustable by valve 175° – 15° ,15° – 0°
Backcheck, mechanical,Delayed action adjustable by valve
(selectable alternative to the hold-open feature) Hold-open Adjustable ,Fixed 90°
Fixed 105° ,Coverplate cement box secured to floor spring
Weight in kg 7.1 3.0
Dimensions in mm Length 341 285
Width 178 182
Height 160 150
Floor spring tested to EN 1154
mark for building products
(products with factory-fitted hold-open
do not carry a CE mark)
1) For particularly heavy doors and doors which have to close
against wind resistance, we recommend the DORMA BTS 80
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