The characteristics of low temperature pump are as follows:
1. Vertical pump is often buried in the ground, is not affected by the motor wind, air temperature and sunshine, easy to keep cold, while reducing the installation height of the pump, increase the filling head, improve the effective cavitation margin.
2. The overall structure of the pump should be symmetrical layout, so that in the cold state can be uniform deformation.
3. To facilitate cold insulation for the transport of dangerous medium, the pump body is often double shell, shell is subjected to pressure pump, between the inner and outer shells under medium suction pressure, appropriate to reduce the inner shell strength requirements. Therefore, cryogenic pump, also known as barrel bag type pump.
