Speroni CMX Single-Stage Centrifugal Pump 230V | Water Transfer

Speroni CMX Stainless Steel Centrifugal Pump | Single Impeller Surface Pump for Irrigation and Pressurisation

The Speroni CMX is a single impeller centrifugal pump with an all stainless steel AISI 304 wetted assembly, built for domestic, agricultural and light industrial water duties. The stainless construction extends pump life where the water source is harder, exposed to weather, or where the pump will see hot water up to 90°C. Available in eight 230V single phase models, from the CMX 60/0.37 up to the CMX 330/2.2. The 400V three phase version is the Speroni CTX.

What is the Speroni CMX pump used for?

•    Automatic water distribution from small and medium tanks
•    Sprinkler and flood irrigation in gardens and agriculture
•    Boosting pressure from tanks in domestic and agricultural systems
•    Light industrial water transfer
•    Hot water transfer up to 90°C
•    Pressurisation behind small pressure tanks or autoclave units

Suitable for potable water from a tank or private supply (not for direct mains, not WRAS)

Construction and Durability

The CMX has a stainless steel AISI 304 pump body, AISI 304 impeller and AISI 304 shaft, with an aluminium motor support that keeps the unit light and balanced. The mechanical seal is silicon, silicon and Viton, which gives a robust seal pairing that copes with hotter water and harder water duties than the standard ceramic and graphite arrangement on cast iron Speroni centrifugals. The motor is a two pole induction unit running at 2,850 rpm with Class F insulation and IP55 protection, suitable for continuous duty. It is rated for liquid temperatures up to 90°C, considerably higher than typical garden pumps.

Why choose the Speroni CMX?

Where a cast iron centrifugal would risk corrosion or staining, the stainless steel CMX delivers cleaner, longer life pumping. The Silicon / Silicon / Viton seal handles hotter water and lighter mineral content without rapid wear, and the IP55 motor with continuous duty rating means the pump can work all day on irrigation, pressurisation or transfer duties. With eight models from 0.37 kW to 2.2 kW, the CMX covers small garden pressurising right through to larger agricultural transfer.

Operational Details

•    CMX 60/0.37: 0.37 kW / 0.5 HP, max head 19 m, max flow up to 100 l/min
•    CMX 60/0.75: 0.75 kW / 1.0 HP, max head 29 m, max flow up to 120 l/min
•    CMX 100/1.1: 1.1 kW / 1.5 HP, max head 30 m, max flow up to 200 l/min
•    CMX 160/1.1, CMX 250/1.5, CMX 250/2.2, CMX 330/1.5 and CMX 330/2.2: larger models, up to 550 l/min and 31 m head
•    Free passage: clean water only, no solids handling
•    Inlet and outlet: 1¼ inch inlet and 1 inch outlet on the smaller models, larger on the high-flow models
•    Suction lift: up to 7 metres total
•    Voltage: 230V single phase, 50 Hz (for 400V three phase see the CTX)
•    Speed: 2,850 RPM, two pole induction motor
•    Motor protection: IP55, insulation class F
•    Liquid temperature: up to 90°C

What's in the box

•    1 x Speroni CMX surface centrifugal pump

Not Self-Priming

The CMX 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.

Potable water and WRAS approval

Stainless steel (304) wetted parts, suitable for potable (drinking) water from a tank or private supply. Not for direct mains connection (not WRAS approved).