General Instruction: This series of pumps are single stage, double suction centrifulgal pumps, the capacity of this pump ranges from 30 to 1900 m3/h, the head ranges from 3 to 145m, the temperature of the medium should no more than 105℃, this type of pump is used in central air-conditioning system, and aslo used for water supply and drainage.
The series of pumps are designed by adopting polular structure abroad recently, compared with horizontal split-casingstructure, the new structure has many advantages, firstly、can stand with higher static pressure（≥1.6Mpa）, under the condition of same wall thickness and materials; Secondly, shaft seal only use mechanical seal, shorten the distance from impeller to shaft and the dictance between shaft seal and bearing, so shorten the axial size of the pump observably.
※ There are exit cones in the outlets of pumps.
※ Materials： Pump casing, pump cover——cast iron or nodular cast iron; impeller——cast iron, cast copper or cast stainless steel; shaft——stainless steel.
※ There is a cuopling in the driving end, so when overhauling can change the mechanical seal without moving pump. The outlet pipe of the pump upwards, and the inlet pipe has two types: upwards (U-shape) or on the sides ( L-shape), when supply, see from the direction of the motor, the inlet pipe of L-shape on the right side, but we change the rotation to contrarotation according to the user’s request.