Type RM 2.1

Magnetically coupled centrifugal pumps of building group 2.1 are self-primingcentrifugal 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.

Constructional design

Housing, impeller magnet coating and rear casing can be made of either PPS* 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, EPDM or FEP (optionally available). *Impeller made of PPS. **Ceramic impeller.

• For aggressive and neutral liquids
• For short-term and continuous operation

The pump is available in:

• PPS, PVDF
• Pump sizes 9/8 | 35/17

Motor:

• 230/400V three-phase motor or
• 230V single-phase ac capacitor start-and-run motor, 370-550 watts, 50 Hz, insulation class F, protection class IP 54 motor speeds of 1,450 and 2,900min-1
  – Other voltages and frequencies are available on request. –

Weight:

• approx. 7.0 to 9.0 kg

Fluid temperature range:

• PPS -20° to +100°C
• PVDF -20° to +80°C

Pressure range: *

• PPS up to 4.0 bar
• PVDF up to 4.0 bar

Position of terminal box:

• on the right

Position of discharge port:

• vertical

Ports:

• suction port: G½ internal thread
• discharge port: G½ internal thread

Accessories (optional):

• explosion-proof motor
• 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
• flexible hoses
• hose connection consisting of several pieces
• hose nipple with G½ external thread

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