The screw pump is a new type of transmission fluid industrial pumps, has a simple structure, safe and reliable operation, easy maintenance, continuous and uniform fluid pressure is stable, etc.. Screw pump should be installed? Pumping adverse phenomenon? How should handle?
First, the screw pump Installation Preparation
The screw pump installation ready to work:
(1) Check screw pump motor, to ascertain that no damage in shipping and handling process.
(2) inspection tools and lifting machinery, and check the machine.
Second, the screw pump installation requirements
Screw pump installation in addition to instructions for the execution, there should be in line with the following installation requirements:
1, the pump should start in the liquid outlet valve fully closed before the start of pump perfusion of transmission fluid;
, Conveying the liquid temperature is higher than 60 ℃, should the equipment technical documentation requirement for preheating;
Commissioning fashion should check the safety valve is sensitive and reliable.

3, screw the common failures (and how to deal with the screw pump pumping undesirable phenomena)
A violent vibration of screw pump: electric rotor imbalance, or the coupling may be combined with bad bearing wear bending; may also rotate some parts loose, broken; perhaps piping bracket firm. Can be taken to adjust, repair, reinforcement, replacement and other ways to deal with.
Two screw pump filler is overheating: usually caused by too tight packing, cooling water into the less packing or shaft surface damage. The fillers can be taken to relax the appropriate measures to clean up a sealed tube blockage. Packing wear and tear must be replaced with new. Soaked in the oil before installation, load-by-turn, the incision should be staggered, so that can reduce the leakage. Last lap filler installed, to install the gland operation to adjust the tightness.
3 screw pump piping leaks or leakage: may be installed nut tighten failed to exercise stringent. If the leakage is not serious, in place of the leak or leaks smearing cement or asphalt oil mixing grout. Temporary repairs can be coated with wet mud or soft soap. If leaks in the joints, you can hand tighten the nut. Severe water must be re-disassembly.
4 screw pump does not absorb water or undrained: the causes of death for the end of the valve card, the treatment part of the blockage, suction height is too high or absorbent leak, it may also turn to the wrong impeller is not clogged. Were taken one by one to check the bottom valve repair, and clear the blockage and corrective steering, cleaning the impeller and other measures to deal with.

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