擎立生产的列管式换热器是目前化工及酒精生产上应用最广的一种换热器。它主要由壳体、管板、换热管、封头、折流挡板等组成。所需材质，可分别采用普通碳钢、紫铜、或不锈钢制作.按形式分为固定管板式、浮头式、U型管式换热器，按结构分为单管程、双管程和多管程。传热面积0.5-500m2,可根据用户需要定制。公称直径管程数管子数量换热面积 公称值/计算值管程通道截面积 管程通道流速为0.5m/sec时的流量m/hr公称压力管子长度（m）φ25×2.515002000300040006000φ25×21591141.5/1.622/2.173/3.27　　0.0044/0.00497.92/8.820.252191263/3.004/4.026/6.068/8.1　0.0082/0.009014.76/16.200.62263/3.004/4.026/6.068/8.81　0.0041/0.00457.38/8.011.02731445/5.087/5.1810/10.2614/13.7221/20.630.013812017955/0.015224.84/27.361.6　2405/4.626/6.199/9.3312/12.4719/18.760.0063/0.006911.24/12.422.53251607/6.939/9.2814/14.0019/18.7128/28.130.0188/0.020833.84/37.440.6　2566/6.479/8.6613/13.0517/17.4636/26.260.0088/0.009715.84/17.461.0