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BTS 80F/ EMB/ FLB floor spring
Description

A range of universal floor springs designed especially for fire and smoke check doors – see CERTIFIRE Register of Approved Products for details of fire door types with which these floor springs can be used.

Features:

  • Suitable for doors up to 300 kg leaf weight.
  • Closing speed variable by valve adjustment.
  • Latching action variable by valve adjustment (not BTS 80 FLB).
  • Suitable for use with all common smoke detector systems, e.g. DORMA RMZ 2 (BTS 80 EMB and BTS 80 FLB only).
  • Comply with requirements of Department of Health memorandum HTM 59 'Ironmongery'.
  • PSA approved (MOB H3 03).
  • Concealed installation.

Dimensions (all models):

341 mm long x 78 mm deep x 60 mm high.

CE marked (models BTS 80 F, BTS 80 EMB only).

General information

Features

Suitable for doors up to 300 kg leaf weight

Closing speed variable by valve adjustment

Latching action variable by valve adjustment (not BTS 80 FLB)

Suitable for use with all common smoke detector systems, e.g. DORMA RMZ 2 (BTS 80 EMB and BTS 80 FLB only)

Comply with requirements of Department of Health memorandum HTM 59 'Ironmongery'

PSA approved (MOB H3 03)

Concealed installation

Uniclass 2015

Pr_30_36_36_29 Floor springsPrimary

CAWS

P21/14 Floor springs

P21/450 Floor springs

Specification data - Floor springs

Product Reference

BTS 80 F

Fully controlled closing from 175°.

BTS 80 EMB

Features electromagnetic hold-open, adjustable latching action and backcheck.

BTS 80 FLB

Features electro-hydraulic, free-swing between 0° and 180°.

Handing

Left hand

Right hand

Special design with integral circuit for door co-ordinator with electromagnetic retention; left hand

BTS 80 EMB only.

Special design with integral circuit for door co-ordinator with electromagnetic retention; right hand

BTS 80 EMB only.

Universal

Models BTS 80 F and 80 EMB only.

Spring strength

EN 4

For standard doors up to 1100 mm wide (905 mm for Universal model).

EN 5

For standard doors up to 1250 mm wide (1125 mm for Universal model).

EN 6

For standard doors up to 1400 mm wide (1280 mm for Universal model).

Coverplate

Satin brass

Stainless steel

Reinforcing underplate

Required

For use in areas of especially heavy traffic.

Not required

Accessories

DORMA 2300 sealing compound

Standard product features

  • Mechanical backcheck (BTS 80 F and BTS 80 EMB only).
  • Electro-magnetic hold-open (BTS 80 EMB only); hold-open point selectable between 75°–180°.
  • Free swing 0°–180° (BTS 80 FLB only).
  • Operating voltage 24v DC (BTS 80 EMB and BTS 80 FLB only).

Product Options

Spindle insert:

Interchangeable spindle inserts enable the floor clearance to be increased if required (doors with thresholds, carpeted floors, etc.). Special spindle designs available on application: e.g. flat tapered with 3° offset, square spindles and spindle inserts for non-DORMA accessories.

Accessories:

  • DORMA 2300 sealing compound: For filling the cavities between floor spring body and cement box to prevent moisture penetration (mandatory according to e.g. VOB regulations for wet rooms).
  • Contact DORMA for Information about other accessories, such as door straps and top centres.

Literature
Third party certifications
  • Certificate No: 128 (models BTS 80 F, BTS 80 EMB only)
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