| Pumping screws | ||
Pumping screws |
Pumping screws are used to boost the circulation of coolant for single-acting and double-acting mechanical seals. Direction of flow, delivery head and delivery rate can be adapted to the given operating conditions by suitable design measures. Pumping screws are dependent on the direction of rotation. The optimum arrangement is afforded by the contra-rotating pumping screw (DBP 1913397), where the thread of the stationary screw (pumping sleeve) faces in opposite direction to the rotating thread (pumping screw). Screw pump. |
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Pumping capacities of various pumping screws (—
with / - - - without pumping sleeve) |
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