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WATER AND WASTEWATER TECHNOLOGIES

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Series XRW 300

ABS submersible mixer XRW 300

Compact submersible mixer, designed to achieve an optimum flow pattern in a wide range of mixing and stirring applications, in large tanks and open waters.

Construction

The submersible mixer is designed as a compact, water-pressure-tight unit, including propeller and integrally casted installation bracket for attachment to a square guide tube. The mixer is available in cast iron (EC) and stainless steel (CR) versions.

Motor

Premium Efficiency IE3, three-phase, squirrel-cage motor; 400 V*; 50 Hz; 6-pole. Protection type IP 68, with stator insulation Class H. Start-up: direct on line (DOL). Max. submergence 20 m. * other voltages available

Propeller

Technically optimized, axially operating 2- or 3-blade propeller, designed to achieve high thrust and therefore a high flow capacity in an axial direction.

The propeller is self-cleaning and so ensures vibration-free operation.

Solids deflection ring

The patented solids deflection ring protects the mechanical seal from damage by ingress of solid or fibrous matter.

Bearings

All bearings are lubricated-for-life and maintenance-free, with a calculated lifetime of more than 100,000 h.

Shaft sealing

Sic-Sic mechanical seal at medium side. NBR O-rings and lip seals.

Seal monitoring

DI-system with sensors in the oil**, motor, and cable connection chambers.

Temperature monitoring

Thermal sensors in the stator which open at 140 °C.

Weight (kg)

XRW-PA 15/6 = 62 kg; XRW-PA 29/6 = 82 kg. With flow ring add 11 kg. ** not in Ex version.

Cable

10 m sewage-resistant CSM material, type S1BN8-F. Optional lengths (m): 15, 20, 30, 40, 50.

Options

Explosion-proof version, additional seal (Sic-C) at motor side, flow ring, seals in viton, EMC cable, PTC thermistor in stator, vertical angle adjustment, vortex shield, vibration damper, lifting hoop.

 

Motor data

Motor PA 15/6 PA 29/6
Rated power (kW) 1,5 2,9
Rated current (A) at 400 V 3,5 7,3
Speed (min-1) 958 971
Motor efficiency (%) 82,5 85.6
Power factor 0,77 0.72

Mixer performance

Hydraulic № Mixer power PP in kW Motor kW
3021 0,9 1,5
3022 1,2 1,5
3023 1,3 1,5
3031 1,6 2,9
3032 2,1 2,9
3033 2,8 2,9
3041* 0,6 1,5
3042* 0,7 1,5
3043* 0,9 1,5
3051* 1,2 2,9
3052* 1,5 2,9
3053* 2,0 2,9

*with flow ring

Materials

Part EC CR
Motor housing EN-GJL-250 painted 1.4404 (AISI 316L)
Sliding bracket EN-GJL-250 painted / polyamide (CF-8M) 1.4408 / polyamide (CF-8M)
Motor shaft 1.4021 (AISI 420) 1.4401 (AISI 316)
Propeller 1.4460 (AISI 329) 1.4460 (AISI 329)
Fasteners 1.4401 (AISI 316) 1.4401 (AISI 316)
Lifting band 1.4404 (AISI 316L) 1.4404 (AISI 316L)
En