Magnetically coupled centrifugal pumps Type RM 2

Magnetically coupled centrifugal pumps of building group 2 are non-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.

Type RM 2

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 ring and centering shaft are made of 99.7% pure oxide ceramic. O-ring sealing of the housing is made of FPM or EPDM or FEP (optionally available).

  • For aggressive and neutral liquids
  • For short-term and continuous operation
  • With non-ventilated motor so that it is insensitive to vapour.

The pump is available in:

  • PP, PVDF
  • Pump sizes 5/50 | 8/60 | 10/100 | 10/110

Motor:

  • 230/400V three-phase motor or
  • 230V single-phase ac capacitor start-and-run motor, 90 to 250 watts, 50 Hz, insulation class F, protection class IP 55 motor speed 2,850min-1
    – Other voltages and frequencies are available on request. –

Weight:

  • approx. 8.8 to 16.5 LBS

Fluid temperature range:

  • PP -4° to +176°F
  • PVDF -4° to +203°F

Pressure range: **

  • PP up to 36 PSI
  • PVDF up to 50 PSI

Position of terminal box:

  • vertical position is standard
  • positions turned to the right or the left are possible

Position of discharge port:

  • vertical position is standard
  • differing positions of 6x60° are possible

Ports acc. to German DIN 8063 standard:

  • suction port: d25/DN20 - G 1¼
  • discharge port: d25/DN20 - G 1¼

Accessories (optional):

  • explosion-proof motor (only with 180 and 250 watts capacity)
  • motor circuit-breaker for 230/400V three-phase current
  • connection cable 5m long with CEE-plug
  • pilotherm for 230V ac
  • ON/OFF switch with connection cable 2.5m long and plug for 230V ac
  • flanges
  • flexible hoses
  • non-return valve
  • three-piece hose connection (incl. hose nipple, spigot nut and O-ring)

* 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.

** Maximum system pressure depends on the temperature of the fluid delivered.

Magnetically coupled centrifugal pumps