NBS Source
BTS 84 Floor Spring

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

Material

Cover plate material.

Brass

Stainless steel

Size

306 x 108 x 40 mm

Length x depth x height.

Uniclass

Pr_30_36_36_29 Floor springsPrimary

CAWS

P21/14 Floor springs

P21/450 Floor springs

Product range

Door Controls / Floor Springs

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.

Accessories

Contact 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 extension

A 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.

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Weight

Door leaf weights up to 100 kg.

Literature

DORMA BTS 84 Floor spring

DORMA BTS 84 Floor spring

DORMA BTS Floor Spring Accessories

DORMA BTS Floor Spring Accessories

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