STN series single-stage magnetic drive centrifugal pumps are the close-coupled type with injection-moulded thermoplastic components (PP-GF or PVDF). The rare-earth magnets - Neodymium-Iron -Boron - offer a compact coupling that is efficient even with high-density liquids. The use of rotary PTFE/Carbographite and static PTFE/Ceramic bushings guarantees excellent value for money.

On the other hand, the pure Silicon Carbide version allows use with liquids containing suspended solids (within the limits prescribed in the table) or particularly corrosive acids.

Motion is transmitted by magnetic couplings, thus avoiding a mechanical connection between impeller and the driving part. This system guarantees maximum safety, reducing the risk of leakage to a minimum. Furthermore, the elimination of external transmission parts makes this series extremely compact, silent and safe even for inexperienced operators.

 

 

Technical features

Pump type	Close-coupled horizontal centrifugal pump with tangential delivery
Construction materials	PP (polypropylene+glass) / ETFE / ETFE-FC
Liquids handled	Acids, bases, solvents
Performances	Q max = 30 m3/h H=24m
Motors	from 0.75 kW (gr. 80) to 5.5 kW (gr. 132)
Max temperature	from 0 °C to +80 °C
Pressure ratings allowed	PP from 0°C=PN 6 at 70°C=PN 4 ETFE from 0°C=PN 4 to 80°C=PN 2
Max viscosity	400 cSt max
Pass solids	Max concentration 2 % in weight Hardness 800 Vk Size max. 150 µm