BTS 84 Floor Spring
Economic, double action floor spring, with optional hold-open, specially developed for aluminium and toughened glass doors.
Application
Suitable for aluminium and toughened glass doors and door leaf weights up to 100 kg.
Description
Economic, double action floor spring, with optional hold-open, specially developed for aluminium and toughened glass doors.
Features and benefits:
- Concealed unit with minimum floor recess dimension.
- Closing speed variable by valve adjustment (130°–0°).
- Successful independent testing to BS EN 1154.
General information
MaterialCover plate material. | Brass Stainless steel |
Size | 306 x 108 x 40 mm Length x depth x height. |
Uniclass | |
CAWS | P21/14 Floor springs P21/450 Floor springs |
Product range |
Specification data - Floor springs Enhanced data
Standard | To BS EN 1154. |
Classification grades (minimum) | - |
Door closer power size | EN 2.For standard and external doors up to 850 mm wide. EN 3.For standard and external doors up to 950 mm wide. EN 4.For standard and external doors up to 1100 mm wide. |
Closer functions | Closing speed variable by valve adjustment (130°–0°).Closing speed variable by valve adjustment (130°–0°) and 90° hold-open point.Closing speed variable by valve adjustment (130°–0°) and 105° hold-open point. |
Materials and finishes | Satin brass.Stainless steel. |
AccessoriesContact DORMA for Information about other accessories, such as door straps and top centres. | None. DORMA 2300 sealing compound. DORMA 2300 sealing compound – For filling cavities between floor spring body and cement box to protect against moisture penetration. |
Coverplate | Satin brass. Stainless steel. |
Dimensions | 306 x 108 x 40 mm. |
Spindle extensionA range of interchangeable spindles is available to provide greater floor clearance if required (e.g. doors with thresholds, carpeted floors). Special spindles available on application: e.g. with flat face profile and 3° offset or square section; spindles for non-DORMA-specific accessories are also available. | None. As standard. 5 mm. 7.5 mm. 10 mm. 12.5 mm. |
Weight | Door leaf weights up to 100 kg. |
Literature
DORMA BTS 84 Floor spring
DORMA BTS Floor Spring Accessories
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