| Magnetically coupled
centrifugal pumps of building group
3.1 are self-priming
centrifugal pumps with volute casing. They operate in
horizontal position and are built in monobloc design.
A magnetic coupling connects the pump to the electromotor
and transmits the power of the motor to the impeller.
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 Constructional design |
Housing, impeller, impeller magnet coating and rear casing can be made of either glass-fibre reinforced PP plastic or PVDF. Sleeve bearings, starting rings and centering shaft are made of 99.7% pure oxide ceramic. The impeller starting ring is made of PTFE graphite. O-ring sealing of the housing is made of FPM or EPDM or FEP (optionally available).
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For aggressive and neutral liquids |
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For short-term and continuous operation |
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Made of |
PP, PVDF |
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Delivery rate |
up to 240 l/min |
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Delivery head |
up to 18m wc |
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Suction head at 20°C |
up to 3.5m wc |
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Vacuum at 20°C |
up to 0.9 bar |
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Density * |
up to 1.8 g/cm³
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Motor |
230/400V three-phase motor, 550 to 750 watts,
50 Hz, insulation class F, protection class IP 54
motor speed 2,900min-1
- Other voltages and frequencies are available on request. - |
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Weight approx. |
11.0kg |
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Fluid temperature range |
PP -20° to +65°C |
PVDF -20° to +85°C |
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Pressure range ** |
PP up to 2.5 bar |
PVDF up to 3.5 bar |
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Position of terminal box |
vertical position is standard
positions turned to the right or the left are possible |
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Position of discharge port |
vertical |
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Ports acc. to German DIN 8063 standard |
suction port: d40/DN32 - G2
discharge port: d40/DN32 - G2 |
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Accessories (optional) |
explosion-proof motor
ac motor
motor circuit-breaker for 230/400V three-phase current
connection cable 5m long with CEE plug
ON/OFF switch with connection cable 2.5m long and plug for 230V ac
flanges
flexible hoses
three-piece hose connection (incl. hose nipple, spigot nut and O-ring) |
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To deliver liquids with a higher relative density, we also offer all our pumps with smaller impeller diameters which, however, reduce delivery rates and heads of the pumps. If in doubt, please consult us. |
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Maximum system pressure depends on the temperature of the fluid delivered. |
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Get more information
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| Files available in |
German |
English |
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| RM
3.1 brochure |
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130 K |
| Operating instructions |
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504 K |
| Spare parts lists |
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GER/ENG |
120 K |
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