螺杆泵就是这样一种新兴的泵。螺杆泵按其作用原理属于容积式泵的类型，若按它对液体能量传递的方式，则属于转子泵，故可称之为容积式转子泵。如今，螺杆泵虽然仍有用来提水的，但更多的是用于工业领域，人们通常把它归纳为工业泵的范畴。
HSN三螺杆泵结构特征：
HSNH:普通泵体、侧进侧出、卧式安装
HSNS:普通泵体、侧进侧出、立式安装
HSNF:普通泵体、侧进侧出、支架式安装
HSNK:普通泵体、侧进侧出、浸没式安装
HSND:普通泵体、端进上出、卧式安装
HSNRa:底部加热泵体、侧进侧出、卧式安装
HSNRb:底部加热泵体、侧进上出、卧式安装
HSNY:整体加热泵体、上进上出、卧式安装
HSNYa:整体加热泵体、侧进侧出、卧式安装
HSNYb:整体加热泵体、侧进上出、卧式安装
HSNH440-54N中埠化工螺杆泵整机
轴承内置型号：
HSNH40-38N HSNH40-46N HSNH40-54N HSNH80-36N HSNH80-42N
HSNH80-46N HSNH80-54N HSNH120-42N HSNH120-46N HSNH120-51N
HSNH120-54N HSNH210-40N HSNH210-46N HSNH210-54N HSNH280-43N
HSNH280-46N HSNH280-54N HSNH440-40N HSNH440-46N HSNH440-52N
HSNH440-54N HSNH660-40N HSNH660-44N HSNH660-46N HSNH660-51N
HSNH660-54N HSNH940-36N HSNH940-42N HSNH940-46N HSNH940-50N
HSNH940-54N HSNHN HSNHN HSNHN HSNHN
HSNHN HSNHN HSNHN HSNHN HSNHN
HSNHN HSNHN HSNHN HSNHN HSNHN
HSNHN HSNHN HSNHN HSNHN
轴承外置型号：
HSNH40-38W1 HSNH40-46W1 HSNH40-54W1 HSNH80-36W1 HSNH80-42W1
HSNH80-46W1 HSNH80-54W1 HSNH120-42W1 HSNH120-46W1 HSNH120-51W1
HSNH120-54W1 HSNH210-40W1 HSNH210-46W1 HSNH210-54W1 HSNH280-43W1
HSNH280-46W1 HSNH280-54W1 HSNH440-40W1 HSNH440-46W1 HSNH440-52W1
HSNH440-54W1 HSNH660-40W1 HSNH660-44W1 HSNH660-46W1 HSNH660-51W1
HSNH660-54W1 HSNH940-36W1 HSNH940-42W1 HSNH940-46W1 HSNH940-50W1
HSNH940-54W1 HSNHW1 HSNHW1 HSNHW1 HSNHW1
HSNHW1 HSNHW1 HSNHW1 HSNHW1 HSNHW1
HSNHW1 HSNHW1 HSNHW1 HSNHW1 HSNHW1
HSNHW1 HSNHW1 HSNHW1 HSNHW1
HSNH系列三螺杆泵常规型号：
HSNH40-38 HSNH40-46 HSNH40-54 HSNH80-36 HSNH80-42
HSNH80-46 HSNH80-54 HSNH120-42 HSNH120-46 HSNH120-51
HSNH120-54 HSNH210-40 HSNH210-46 HSNH210-54 HSNH280-43
HSNH280-46 HSNH280-54 HSNH440-40 HSNH440-46 HSNH440-52
HSNH440-54 HSNH660-40 HSNH660-44 HSNH660-46 HSNH660-51
HSNH660-54 HSNH940-36 HSNH940-42 HSNH940-46 HSNH940-50
HSNH940-54 HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNH
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp;
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp;
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNH
进出口反向安装型号：
HSNH40-38Z HSNH40-46Z HSNH40-54Z HSNH80-36Z HSNH80-42Z
HSNH80-46Z HSNH80-54Z HSNH120-42Z HSNH120-46Z HSNH120-51Z
HSNH120-54Z HSNH210-40Z HSNH210-46Z HSNH210-54Z HSNH280-43Z
HSNH280-46Z HSNH280-54Z HSNH440-40Z HSNH440-46Z HSNH440-52Z
HSNH440-54Z HSNH660-40Z HSNH660-44Z HSNH660-46Z HSNH660-51Z
HSNH660-54Z HSNH940-36Z HSNH940-42Z HSNH940-46Z HSNH940-50Z
HSNH940-54Z HSNHZ HSNHZ HSNHZ HSNHZ
HSNHZ HSNHZ HSNHZ HSNHZ HSNHZ
HSNHZ HSNHZ HSNHZ HSNHZ HSNHZ
HSNHZ HSNHZ HSNHZ HSNHZ