Speroni CTX 400V Three-Phase Centrifugal Surface Pump
Built for the job
The three-phase version of the CMX, more efficient on continuous duty where 400V supply is available.
The CTX is the 400V three-phase version of the Speroni CMX. It is the same pump, the same stainless steel construction, the same performance, but with a three-phase motor. On any site where three-phase supply is available, the CTX is the better choice: more efficient, runs cooler on continuous duty, and typically cheaper to run over the life of the pump.
Three-phase motors deliver smoother power than single-phase. For continuous-duty applications, agricultural use, industrial installations, and commercial buildings with three-phase supply, this matters. You get more reliability, less heat, and lower running cost.
Suitable for potable water from a tank or private supply (not for direct mains, not WRAS approved)
Where the Speroni CTX Pump is Used
Industrial water transfer and processing. Agricultural irrigation where three-phase supply is available. Air-conditioning and chilled water circulation. Treatment plants and washdown systems. Cooling loops in industrial buildings. Moderately aggressive liquids (subject to written application details). Fire booster systems (with appropriate controls).
Stainless Steel Construction
The CTX is built in stainless steel 304 where it matters. The pump body, impeller, shaft, and pump flange are all stainless 304, with a silicon carbide and EPDM mechanical seal that resists aggressive fluids, and a cast aluminium motor support.
This is what makes the pump suitable for clean water and industrial process water where a standard cast iron pump would corrode quickly. Speroni also rates it for moderately aggressive liquids, subject to written details of the application, so please send us the details of any liquid other than water before ordering.
Not Self-Priming
The CTX is not self-priming. It needs flooded suction, meaning the water source must be above or at the same level as the pump inlet. If the pump must sit above the water source, the suction pipe has to be primed manually and fitted with a foot valve to hold prime between runs. Max suction lift with a foot valve is 7 metres.
When to Choose CTX Over CMX
Choose the CTX if your site has a three-phase electrical supply, if the pump will run for long periods or continuously, or if the installation is industrial, agricultural, or commercial. Choose the CMX instead if your site has only a domestic 230V supply or the pump will run intermittently in a residential installation.
Choosing Between the Models
Same principle as the CMX: the first number in the model name is the approximate flow in l/min, the second is the motor power in kW.
Full spec sheet
| Model | CTX 60/0.37 | CTX 60/0.75 | CTX100/1.1 | CTX 160/1.1 | CTX 250/1.5 | CTX 250/2.2 | CTX 330/1.5 | CTX 330/2.2 |
| Inlet/ mm (BSPF) | 32 | 32 | 32 | 38 | 38 | 38 | 50 | 50 |
| Outlet/ mm (BSPF) | 25 | 25 | 25 | 32 | 32 | 32 | 32 | 32 |
| Kw | 0.37 | 0.75 | 1.10 | 1.10 | 1.50 | 2.20 | 1.50 | 2.20 |
| Volt | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 |
| Flow ltr/min | 100 | 120 | 200 | 400 | 400 | 500 | 500 | 550 |
| Head /m | 19 | 29 | 30 | 21 | 25 | 31 | 21 | 24 |
| W x L x H /mm | 216 x 333 x 227 | 216 x 333 x 227 | 216 x 360 x 227 | 216 x 371 x 238 | 216 x 371 x 238 | 216 x 418 x 245 | 216 x 371 x 238 | 216 x 418 x 245 |
| Weight /Kg | 10 | 14 | 16 | 16 | 20 | 23 | 20 | 23 |
