Sulzer 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) |
