SQX-B型套管式伸缩器主要为保障管道安全运行，具有以下作用：补偿吸收管道轴向、横向、角向热变形；吸收设备振动，减少设备振动对管道的影响；吸收地震、地陷对管道的变形量。该产品为各种给排水管道、水塔、水泵、水表、阀门的安装拆换提供了极大方便，给长距离管路因温差伸缩起到了很好的调节作用。
 SQX-B型套管式伸缩器技术参数公称通径最小长度L安装长度L1最大长度L2伸缩量40170190210405018020022040651902002205080190220240601001902202407012519022526070150210250290802002202603008025023527531590300235280325903502502953409040026030535090450260305350905002703153609060028033038010070030035040010080033038043010090033038043010010003504004501001200350400450100140039044550011016004204705201101800450510560120200045051057012022004805456101302400480545610130260050057565015028005005756501503000500575650150320050057565015034005306107001703600530610700170380055063072018040005506307201804200550630720180