Imitation of Germany "HUDIG" water pump, vacuum pump using "water ring vacuum pump ", instead of" rotor vacuum pump "(rotor vacuum pump once pumped into the water, resulting in oil emulsification, vacuum pump damage, water ring vacuum pump is not afraid of water);
2, with the clutch, to avoid a long time without water, resulting in the mechanical seal of the pump shaft burn wear, vacuum pump can operate independently for a long time, such as empty box filled with groundwater, can be combined with the clutch, drainage;
3. Super stainless steel vacuum buffer box, automatic control vacuum plating, so that the drainage stability, efficiency improvement;
4. Plug the ground filter pipe, which is automatically slit processed by CNC machine tool. With casing, the total filtration area is large, the pumping is rapid and the efficiency is improved.