BTS BTS 80 Hold-open EN 6 max. 1400mm max. door weight 300kg DORMAKABA

Universal floor spring according to EN 1154 · for left-hand, right-hand and double-action doors up to 300 kg door weight · with continuously adjustable closing speed · closing action from approx. 175° · with fully hydraulically controlled closing sequence and backcheck · with integrated pressure equalisation for constant, continuous hold-open, independent of temperature fluctuations, between 75° and 175° door opening (can be deactivated) · with continuously adjustable hold-open start, closing delay (delay end adjustable between 75° and 105°) · including cement box Accessories such as other spindle extensions and potting compound on request Further technical properties: · subject to testing: yes