
TSP Axially Split Double-Suction Pumps
Single-stage, double-suction pumps with axially split casing for high-flow water transfer with easy rotor access.
Desan Engineering TSP series pumps are single-stage, double-suction units with an axially split casing.
Suction and discharge flanges sit on the lower casing on the same axis. The casing splits on the horizontal plane so the rotor group can be serviced without removing the pump from the system.
Highlights
- Flanges to TS EN 1092-2 / PN 16 and PN 25
- Impellers dynamically or statically balanced to ISO 1940 Class 6.3
- Double-suction impeller increases capacity and balances axial hydraulic forces
- Standard rotation clockwise from motor side (suction on right); left-side suction on request
- Grease-lubricated ball bearings for horizontal mounting (standard)
- Shaft sealing: single / double / cartridge mechanical seal or soft packing, depending on fluid and duty
| Parameter | Value |
|---|---|
| Discharge flange | DN 65 – DN 125 |
| Flow rate (Q) | Up to 600 m³/h |
| Head (H) | Up to 180 m |
| Motor speed | Up to 2,900 rpm |
| Operating temperature | -10 °C to +110 °C |
| Casing pressure (Pmax) | 16 – 25 bar |
| Construction | Axially split, double suction |
| Balance | ISO 1940 Class 6.3 |
| Flanges | TS EN 1092-2 PN 16 / PN 25 |
| Seal options | Soft packing / mechanical seal |
| Bearings | Grease-lubricated ball bearings |
Pump label example
TSP 100-250 → discharge flange DN 100, impeller nominal diameter 250 mm.
Dimensional / outline information.

Cross-section drawing — double-suction axially split construction.

Full curves, BOM lists and dimension tables are in the technical catalog (PDF).
Operating ranges
Grouped curves for approx. 1,450 rpm and 2,900 rpm by shaft form (models such as 65-250 … 125-315 class).
Envelope: flow up to 600 m³/h, head up to 180 m, casing pressure 16–25 bar.
Send Q–H, NPSH and preferred speed for impeller / shaft form selection.
Send your project requirements. Our team will reply with the suitable pump selection.