首先要思索问题的是橡胶软接头所运用的场所，依据契合运用的的介质和温度，一般分为：耐高温橡胶软接头、耐油性橡胶软接头、耐酸碱性橡胶软接头、耐磨性橡胶软接头。其非首要依据尺度巨细，尺度巨细适宜，一步的装置才干成功。相同橡胶软接头的公称通径DN是32mm-3000mm，长度L90mm-500mm，依据实践使用会有不同。紧接着要知道橡胶软接头的工作压力，存在广泛运用的有：1.0Mpa，1.6Mpa，2.0Mpa。
The first thing to think about is the place where the rubber joint is used, according to the medium and temperature, generally divided into: high temperature rubber joint, oil resistance rubber joint, acid and alkaline rubber joint, wear resistance rubber joint.It is not mainly based on the size of the size, the size of the appropriate step in order to successfully install.The nominal diameter DN of the same rubber joint is 32mm-3000mm, and the length is l90mm-500mm, which will be different according to the actual application.Then we should know the working pressure of rubber joints, which are widely used: 1.0mpa, 1.6mpa, 2.0mpa.
数字越大代表工作压力越大，即能承当的里外部压力越大。假定实践工作中易显露出来管道压力瞬间变大的物质姿态，咱们在选择的时间应该选择比规范压力更高的压力等级来处理这种物质姿态。
The larger the number, the greater the work pressure, i.e. the internal and external pressure that can be borne.Assuming that the material in the actual work is easy to show the appearance of pipeline pressure suddenly increased, we should choose a higher pressure level than the standard pressure at the moment of selection to solve the appearance of this material.
