Single-stage glanded centrifugal pump in monobloc design for installation on a base.
Low-vibration and low-noise monobloc design with lantern and rigidly connected standard motor.
With force-flushed, bidirectional bellows mechanical seal (from 37 kW/4-pole, optionally available with a cartridge mechanical seal in back pull-out design for mechanical seal replacement without dismantling the motor) and cavitation-reducing impeller.
Flanges with pressure measuring connections R 1/8. The pump housing and lantern are cataphoretic-coated.
Motors in IE3 technology as standard. Pump with motor ≥ 5.5 kW are equipped as standard with a PTC thermistor sensor for motor protection.
The motor terminal box ≤ 7.5 kW can be made of metal or plastic. If a metal terminal box is absolutely necessary, please order the appropriate special variant. The motor terminal boxes > 7.5 kW are always made of metal.
|Fluid temperature T||-20 °C|
|Ambient temperature T||-15 °C|
|Maximum operating pressure PN||16 bar|
|Note on dimensioning||16 bar to 120°C, 13 bar to 140°C|
|Minimum efficiency index (MEI)||0.4|
|Motor efficiency class||IE3|
|Mains connection||3~400 V, 50 Hz|
|Voltage tolerance||±10 %|
|Rated power P2||4000 W|
|Rated speed n||2900 1/min|
|Rated current IN||7.75 A|
|Power factor cos φ||0.83|
|Motor efficiency ηM 50%||85.7 %|
|Motor efficiency ηM 75%||87.5 %|
|Motor efficiency ηM 100%||88.1 %|
|Pump housing||5.1301/EN-GJL-250 KTL-coated|
|Pipe connection on the suction side DNs||DN 65|
|Pipe connection on the discharge side DNd||DN 50|
|Product description||CronoBloc-BL 50/120-4/2|
|Net weight, approx. m||68 kg|