符合以下规格，DIN ISO 9001,EN29001，BS5750，经BSI Quality Assuance品质控制检定及注册，注册号Q6423，FM10756产品功能及优点◆特薄型机体设计，机体厚度只为40mm，减小地面开孔深度，使安装更为简易。◆内置减压阀，防止因外来强压或强风状态下闭门而造成地弹簧损坏或漏油◆恒温装置，能在极大温差变化下，令闭门速度仍保持稳定◆130&odm;至0&odm;及130&odm;至20&odm;两个闭门速度调控阀，以配合不同闭门效果◆除不带定位功能之型号外，更备有90&odm;定位或105&odm;定位之型号以供选择◆通用型设计，适合左右手及单双开启门扇，各使用方式均备有完整配件◆承重力达100KG,最大门宽1100mm，适合各类门扇。The economic double action Technical Data BTS 84 floo spingSpecial shallow design optional hold-open. The DORMA BTS 84 is a double action floo sping which has been specially developed fo the aluminium and toughened glass doo industies. This unit is intended to complement ou intenationally acclaimed RTS concealed ovehead doo close by giving the shopfitting industy the option of a DORMA quality sping designed fo thei paticula pupose. The BTS 84 has many of the featues of the othe DORMA BTS closes with the addition of educed depth and an aay of accessoies designed fo the aluminium doo fabicato and toughened glass doo manufactue. Cetified to ISO 9001. Plus pointsFo the tade - Outstanding value fo money. - Also available with stonge and weake spings fo special equiements. Fo the installe - Easy installation thanks to shallow design. - Easy to adapt to individual equiements with dual valve contol 130° to 0° and 130° to 20°. - Intechangeable spindle insets available to suit site conditions. Fo the achitect/specifie - Concealed unit fo invisible installation. - Minimum floo ecess dimension. - Poven, obust unit fo doo weights up to 100 kg. Fo the use - Themoconstant smooth opeation. - High mechanical efficiency fo easy doo opening. - Optional single point holdopen精诚合作，全心全意为您服务，全国范围均可发货或代发货！欢迎来函来电咨询！TEL:0755-25876331 13728723591欢迎访问我公司网站咨询洽谈////.cn
