Single-stage single-suction centrifugal pump structure

Single-stage single-suction centrifugal pump, the pump casing is volute type. Axial suction in the radial direction, the pump casing is center-supported, and the laterally connected sliding pin expansion system is adopted at the connection between the pump casing and the base, thus ensuring the neutrality of the pump after thermal expansion.

1) The pump casing is a center-supported type. It is not necessary to remove the inlet and outlet flanges during inspection and maintenance. It is convenient to repair.

2) The impeller is equipped with a wear ring. After the impeller wears, only the wear ring can be replaced, which reduces the cost of maintenance. In addition, there is a balance hole in the impeller that can automatically balance the axial thrust.

3) The self-priming pump shaft is supported by a rolling bearing and the ball bearing and roller bearing are assembled on the shaft by a shrink fitting method (or heating method).

4) The shaft end seal is a mechanical seal, which is achieved by elasticity and elasticity and the pressure of the sealing liquid.