GDL series vertical multistage pipeline pump is the latest type of pump. Its advantages are energy saving, taking little space, easy to install, steady performance, etc. The sheath is made of high quality stainless steel 1C18NIi9Ti. The shaft seal uses wear-resisting machinery sealing, no leakage and long service life. Its axial force is balanced by hydraulic force, so the pump is steady and low noise when it is running. It is more flexible to install than DL series. You can install it in any section of the horizontal pipeline. It fully satisfies the need for water drainage and supply in high-rise buildings and deep mines as well as water supply for fire-fighting system. It is an ideal pump for delivery of hot and cold water in many industries or other liquids with similar physical and chemical properties as water.