Product Features
1,Compact, lightweight structure with reliable operation, high efficiency and easy maintenance.
2,Two drive options: direct-coupled drive or variable-speed drive, adaptable to electric motor or diesel engine; specify power & speed at order for correct coupling/pulley configuration.
3,Standard impeller rotation: counterclockwise viewed from suction flange; exception: 650HW 5/ 7/ 10 rotate clockwise.
4,Impeller trimming or alternative impeller (marked “A”) available to adjust hydraulic performance for wider application scope.
5,Adjustable clearance (0.3~0.7mm between impeller & pump cover via paper shims) to maintain efficiency and avoid friction or backflow.
6,Packing shaft seal assembly prevents air ingress and liquid leakage; replaceable shaft sleeve protects pump shaft against abrasion.
7,Pump shaft supported by single-row radial ball bearing, lubricated by oil or grease. Top tapping on pump casing for priming or vacuum pump connection.
8,Optional spare parts vary by size:
150~300HW: inlet/outlet elbows, flexible elbows, foot valve, pulley/coupling
400~650HW: inlet/outlet elbows, check valve, pulley/coupling
Main Application
Farmland irrigation, municipal & industrial water supply and drainage projects.
Model Designation
For example:
Model: 100 HW – 8 S
- Suction and discharge diameters (mm)
HW-Horizontal volute casing mixed-flow pump
8-Rated head (m)
S-Type code
Structure Diagram
1. Belt pulley
2. Gear cover
3. Bearings
4. End cover of bearing body
5. Pump body
6. Screw plug
7. Impeller
8. Impeller nut
9. Pump cover
10. Bearing body
11. Axis
12. Packing gland
13. Filler
14. Packing ring
15. Shaft sleeve
16. Paper pad
17. Impeller nut
