sealed screw pump

Screw pump body and at the same time, each other between the screw and screw and form a sealed chamber, ensure airtight, otherwise there may be liquid backflow from the gap.

同时螺杆与泵体、螺杆与螺杆间又相互形成密封腔，保证密闭，否则就可能有液体从间隙中倒流回去。

At the same time with the screw pump, screw and screw with each other form a sealed cavity between one another to ensure airtight, otherwise there may be liquid from the gap in the back to go back.

同时螺杆与泵体、螺杆与螺杆间又相互形成密封腔，保证密闭，否则就可能有液体从间隙中倒流回去。

Three mutual engagement of the screw in the pump cylinder for each lead of the formation of a sealed chamber, causing the seal between the suction mouth.

三根互相啮合的螺杆，在泵缸内按每个导程形成为一个密封腔，造成吸排口之间的密封。