S-Type pump is a kind of single stage double suction horizontal centrally-split centrafugal pump. It is used to transport clear water or the liquids with physical and chemical properties similar to clear water.The temper- ature can be no more than80℃. It is applicable to water supply and drainage in factory,  mine,  city,  power station, agriculture irrigation and all kinds of hydraulic engineering.

Structural Illustration

Both inlet and outlet of S-type pump are below the pump's axial central line. They are perpendicular with axial line and horizontally placed in the middle of pump casing. There is no removal of inlet, discharge pipeline and electric motor(or some other motors).  The pump rotates clockwise from the direction of the shaft coup- ling. The pump which rotates anticlockwise can also be manufactured according to the requirements, but it should be raised specially while ordering.

S-Type pump is mainly made up of pump casing(1), pump  cover(2),  impeller(3),  shaft(4) and  double  suction sealring(5), spindle sleeve(6) and bearing(15), etc.Except that the material for the bearing is first grade carbon copper, the remained are all made of cast iron. (referto the structural illustration of pump)

The pump casing and pump cover compose an impeller's working room. The installation vacuum gauge and pipeline bolthole on the pressure gauge  are designed for the inlet and outlet flange. After the static balance test on the impeller, it is fixed with the spindle sleeve and sleeve nut on both sides. The axial location can be addition-usted through the sleeve nut. The impeller's axial force makes use of the symmetric layout of its vane to keep in balance. Maybe a little residual axial force is borne by the bearing at the shaft end.

The pump is supported by two single-filed centripetal ball bearings. The bearing is installed inside the bearing body at both sides of the pump casing,and lubricated with solid lubricant.The double suction seal ring is used to reduce the amount of leakage of water at the pump impeller.

Pump is directly connected with the electric motor through elastic shaft coupling. (If it is a  must to transmit with  rubber-belt,a pedestal  should be mounted in addition.

The shaft seal adopts packing seal.In order Tot cool down the lubricant seal chamber and also to prevent air from leaking into the pump, a water seal ring is mounted among the stuffing.  While pump is running, slight amount of high-pressure water passes through  the concave groove on the centrally-split surface of pump coverinto the packing chamber, which functions as water seal.

The products are 100% compatible with Weir.