Conforto
STM/ST 0.37–4 kW
Conforto STM/ST
Single-impeller centrifugal pump, 0.37–4 kW
Official partnerThe single-impeller pumps in the Conforto STM/ST series, with axial suction and radial discharge, are particularly suited to industrial, domestic and agricultural applications as well as heating and water supply systems. The pump has a horizontal axis, a bronze impeller, a G20 cast-iron body, an AISI 416 stainless steel shaft and a ceramic/graphite mechanical seal. On models up to 1 HP an impeller in Noryl with 20% glass fibre is available.
Features
- Wide power range: 0.37–4 kW
- Also suitable for heating systems (up to 80 °C)
- Bronze impeller (Noryl on models up to 1 HP)
- G20 cast-iron body
- AISI 416 stainless steel shaft
- Ceramic/graphite mechanical seal
- IP44 protection rating, insulation class F
- Single-phase (STM) and three-phase (ST) models
Applications
Domestic water supplyAgricultureIndustryHeating systemsWater supply systems
Technical specifications
Key parameters
ManufacturerConforto (Italy)
SeriesSTM (single-phase) / ST (three-phase)
TypeSingle-impeller centrifugal pump
Power0.37 – 4 kW (0.5 – 5.5 HP)
Maximum head56 m
Maximum flow rate18 m³/h (300 l/min)
Speed2850 rpm
Operating conditions
Max. suction depth7 m
Max. liquid temperature80°C
Voltage (single-phase)230–240 V, 50 Hz
Voltage (three-phase)230/400 V, 50 Hz
Protection ratingIP44
Insulation classF
Materials
Impeller materialBronze (Noryl with 20% glass fibre up to 1 HP)
Body materialG20 cast iron
Shaft materialAISI 416 stainless steel
SealCeramic/graphite mechanical
Connections and dimensions
Inlet (DNA)1" – 2"
Outlet (DNM)1" – 1" 1/4
Weight9.3 – 37.8 kg
Available modelsSTM 1–6 (single-phase), ST 1–8 (three-phase)
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