DL立式低转速多级离心泵是采用国家推荐使用的节能产品IS型泵的水力模型，为立式多级多节段式结构。螺杆把进水段、中段、出水段夹紧联成一体。水泵每一级装一个叶轮、一个导水叶。轴向力采用水力平衡法解决，残余轴向力由球轴轴承承受，用油脂润滑。轴封采用软填料或机械密封。产品执行JB/T2727-93《立式多级离心泵型式与基本参数》标准，主要供吸送稀释的、清洁的、不腐蚀的的清水及物理化学性质类似水的不含固体颗粒或纤维的液体。
型 号级 数流 量(m3/h)流 量(L/S)扬 程转 速轴功率(kw)电机功率(kw)效 率吸 程汽蚀余量(m)(r/min)(%)(m)(m)40DL26.21.7223.614500.921.54073.1936.21.7235.41.382.24073.1946.21.7247.21.8434073.1956.21.72592.344073.1966.21.7270.82.7544073.1976.21.7282.63.225.54073.1986.21.7294.43.685.54073.1996.21.72106.24.147.54073.19106.21.721184.67.54073.19116.21.72129.85.067.54073.19126.21.72141.65.52114073.1950DL212.63.524.414501.553547.62.66312.63.536.62.333547.62.66412.63.548.83.14547.62.66512.63.5613.885.5547.62.66612.63.573.24.655.5547.62.66712.63.585.45.437.5547.62.66812.63.597.66.27.5547.62.66912.63.5109.86.9811547.62.661012.63.51227.7511547.62.6665DL2308.333214504.225.5627.62.823308.33486.337.5627.62.824308.33648.4411627.62.825308.338010.5515627.62.826308.339612.6615627.62.827308.3311214.7718.5627.62.828308.3312816.8822627.62.829308.3314418.9922627.62.8210308.3316021.130627.62.8280DL250.4144014507.8411707.822.49350.4146011.7615707.82.49450.4148015.6822707.82.49550.41410019.630707.82.49650.41412023.5230707.82.49750.41414027.4437707.82.49850.41416031.3645707.82.49950.41418035.2845707.82.491050.41420039.255707.82.49100DL-722722040145010.9157282.8372206010.918.57282.8472208010.9307282.85722010010.9377282.86722012010.9377282.87722014010.9457282.88722016010.9557282.89722018010.9557282.810722020054.4707282.8100DL-100210027.840145015.1418.5727.23.53310027.86022.7230727.23.53410027.88030.2837727.23.53510027.810037.8645727.23.53610027.812045.3955727.23.53710027.81405375727.23.53810027.816060.5775727.23.53910027.818068.1490727.23.531010027.820075.7190727.23.53150DL-150215027.840145020.4230805.72.8315027.86030.6337805.72.8415027.88040.8445805.72.8515027.810051.0555805.72.8615027.812061.2675805.72.8715027.814074.4775805.72.8815027.816081.6890805.72.8200DL-280228041.660145055.79908463.7328041.69083.691108463.7428041.6120111.571328463.7528041.6150139.471608463.7628041.6180163.382008463.7
DL、DLR型立式多级泵是沪龙公司根据高层建筑给水市场的实际需要和国家消防局GB 6245《消防泵性能要求和试验方法》标准而研制开发的多级泵新型产品。DL立式多级泵供输送不含坚硬颗粒及物理化学性质类似于水的介质之用。流量范围为5～360m3/h,扬程范围为22～300m,配套功率范围为1.5～220KW,口径范围为φ40～φ200m。同一台泵的出口可设1～5个出口，低转速n=1450r/min。
