d、dg型泵是卧式单吸多级节段式离心泵。供输送清水（含杂质量小于1%，颗粒度小于0.1mm）或物理化学性质类似于水的其它液体。d型泵输送介质温度小于80℃，适用于矿山排水、油田注水、工厂和城市给、排水等场合。油田注水泵根据介质的腐蚀性，泵采用不同的材质。dg型泵输送介质温度小于105℃，适用于各种锅炉给水。
性能范围：
流量q=6.3~450m3/h
扬程h=50~600m
型号意义：
dg 46 - 5 0× 7
dg 锅炉给水泵
46 泵设计点流量m3/h
50泵设计点单级扬程m
7泵的级数（即叶轮数
型号
转速
n
(r/min)
流量 q扬程
h
(m)效率
η
(%)功率(kw)必需汽蚀余量
(npsh)r
(m)叶轮
直径
(mm)
质量
(kg)
立方米/时l/s辅功率
pa电机
功率
d 6-25 ×3
dg
29503.751.0476.5332.375.52.0 6.31.7575452.362.07.52.0873.5473.192.5
d 6-25 ×4
dg
29503.751.04102333.167.52.0 6.31.75100453.812.07.52.0898474.262.5
d 6-25 ×5
dg
29503.751.04127.5333.957.52.0 6.31.75125454.772.07.52.08122.5475.322.5
d 6-25 ×6
dg
29503.751.04.0 6.31.75150455.722.07.52.08147476.392.5
d 6-25 ×7
dg
29503.751.04.0 6.31.75175456.672.07.52.08171.5477.452.5
d 6-25 ×8
dg
29503.751.04204336.31152.0 6.31.75200457.632.07.52.08196478.522.5
d 6-25 ×9
dg
29503.751.04229.5337.10152.0 6.31.75225458.582.07.52.08220.5479.582.5
d 6-25 ×10
dg
29503.751.04255337.8918.52.0 6.31.75250459.532.07.52.082454710.652.5
d 6-25 ×11
dg
29503.751.04280.5338.6818.52.0 6.31.752754510.52.07.52.08269.54711.712.5
d 6-25 ×12
dg
29503.751.04306339.4718.52.0 6.31.753004511.442.07.52.082944712.78
2.5
型号
转速
n
(r/min)
流量 q扬程
h
(m)效率
η
(%)功率(kw)必需汽蚀余量
(npsh)r
(m)叶轮
直径
(mm)
质量
(kg)
立方米/时l/s辅功率
pa电机
功率
d 12-25 ×3
dg
29507.52.0884.6443.937.52.0 12.53.4775544.732.015.04.1769535.322.5
d 12-25 ×4
dg
29507.52.08112.8445.24112.0 12.53.47100546.302.015.04.1792537.092.5
d 12-25 ×5
dg
29507.52.08.0 12.53.47125547.882.015.04.17115538.862.5
d 12-25 ×6
dg
29507.52.08.0 12.53.47150549.462.015.04.171385310.642.5
d 12-25 ×7
dg
29507.52.08.0 12.53.471755411.02.015.04.17615312.412.5
d 12-25 ×8
dg
29507.52.08225.64410.4718.52.0 12.53.472005412.612.015.04.171845314.182.5
d 12-25 ×9
dg
29507.52.08253.84415.9518.52.0 12.53.472255413.092.015.04.172075315.762.5
d 12-25×10
dg
29507.52.082824417.73222.0 12.53.472505414.42.015.04.172305317.732.5
d 12-25×11
dg
29507.52.08310.24414.4222.0 12.53.472755417.342.015.04.172535319.52.5
d 12-25×12
dg
29507.52.08338.44415.7302.0 12.53.473005418.92.015.04.172765321.32.5
型号
转速
n
(r/min)
流量 q扬程
h
(m)效率
η
(%)功率(kw)必需汽蚀余量
(npsh)r
(m)叶轮
直径
(mm)
质量
(kg)
立方米/时l/s辅功率
pa电机
功率
d 25-30×3
dg
2950.33152.2 256.9490629.882.2308.3382.56310.72.6
d 25-30×4
dg
2950.1118.52.2 256.941206213.12.2308.331106314.262.6
d 25-30×5
dg
2950.89222.2 256.94.33137.56317.832.6
d 25-30×6
dg
2950.67302.2 256.94.331656321.42.6
d 25-30×7
dg
2950.44302.2 256.942106223.12.2308.33192.56324.962.6
d 25-30×8
dg
2950.22372.2 256.942406226.42.2308.332206328.532.6
d 25-30×9
dg
2950.0372.2 256.942076229.652.2308.33247.56332.12.6
d 25-30×10
dg
2950.8452.2 256.943006232.92.2308.332756335.72.6
型号
转速
n
(r/min)
流量 q扬程
h
(m)效率
η
(%)功率(kw)必需汽蚀余量
(npsh)r
(m)叶轮
直径
(mm)
质量
(kg)
立方米/时l/s辅功率
pa电机
功率
d 25-50×3
dg
2950.5302.4 256.94.8
d 25-50×4
dg
2950154.02.4 256.94200542002.7287.78192541922.8
d 25-50×5
dg
2950.5372.4 256.94250542502.7287.78240542402.8
d 25-50×6
dg
2950154.52.4 256.94300543002.7287.78288542882.8
d 25-50×7
dg
2950.5552.4 256.94350543502.7287.78336543362.8
d 25-50×8
dg
2950154.52.4 256.94400544002.7287.78384543842.8
d 25-50×9
dg
2950.5752.4 256.94450544502.7287.78432544322.8
d 25-50×10
dg
2950154.52.4 256.94500545002.7287.78480544802.8
d 25-50×11
dg
2950154.02.4 256.94550545502.7287.78528545282.8
d 25-50×12
dg
2950154.002.4 256.94600546002.7287.78576545762.8
型号
转速
n
(r/min)
流量 q扬程
h
(m)效率
η
(%)功率(kw)必需汽蚀余量
(npsh)r
(m)叶轮
直径
(mm)
质量
(kg)
立方米/时l/s辅功率
pa电机
功率
d 46-30×3
dg
2950308.331026413.02222.4 4612.8907016.113.05515.3816817.844.6
d 46-30×4
dg
2950308.33.4 4612.81207021.483.05515.31086823.794.6
d 46-30×5
dg
2950308.33.4 4612.8.31356829.744.6
d 46-30×6
dg
2950308.332046426.04372.4 4612.8.31626835.684.6
d 46-30×7
dg
2950308.332386430.38452.4 4612.82107037.583.05515.31896841.634.6
d 46-30×8
dg
2950308.332746434.72552.4 4612.82407042.953.05515.32166847.584.6
d 46-30×9
dg
2950308.333066439.06552.4 4612.82707048.323.05515.32436853.534.6
d 46-30×10
dg
2950308.333406443.4752.4 4612.83007053.693.05515.32706859.474.6
本产品的品牌是荣瑞，型号是D155-67X7，材质是铸铁，性能是耐磨，用途是增压泵，驱动方式是电动，输送介质是清水泵，泵轴位置是卧式，叶轮结构是封闭式叶轮，叶轮吸入方式是单吸式，流量是155（m3/h），叶轮数目是7，扬程是469（m），汽蚀余量是2（m），结构原理是喷射泵，级数是多级，规格是水泵泵头