Sulzer submersible mixer XRW 900
The compact Sulzer submersible mixers have been designed for a wide range of applications. The units are suitable to achieve flow pattern in large tanks and open waters for mixing and stirring applications.
Construction
The submersible mixer is designed as a compact, water-pressure-tight unit including propeller and integrally casted installation bracket for the attachment on the square guide tube.
Different versions with an open, closed bracket or a flow ring can be chosen. The mixers are available in two standard material versions; cast iron (EC), and stainless steel (CR).
Motor
Premium Efficiency IE3, squirrel cage, 3-phase, 4-pole, 50 Hz, insulation class F (155 °C), max. submergence 20 m.
Propeller
Technically optimized, axially operating 3-blade propellers with very good self-cleaning effect for vibration-free operation. The propellers are designed to achieve high thrusts and therefore a high flow capacity in axial direction.
Solids deflection ring
The patented solids deflection ring protects the mechanical seal from damage by ingress of solids or fibrous matter.
Bearings
All bearings are lubricated-for-life and maintenance-free, with a calculated life time of more than 100,000 h.
Gearbox
High-efficiency planetary gearbox, fatigue strength with a calculated life time more than 100,000 h.
Shaft sealing
Mechanical seal: Silicon carbide / Silicon carbide. O-Rings / lip seals: NBR.
Seal monitoring
DI-system with a sensor in the junction box, oil chamber, motor, and gearbox.
Temperature monitoring
TCS-Thermo-Control-System with thermal sensors in the stator which open at 140 °C.
Cable
10 m, sewage-resistant, CSM material. XRW 900-PA 110/4: 1 x S1BN8-F, 10G1.5 Tecwater. XRW 900-PA 150/4: 2 x S1BN8-F, 4G4+2×0.75 Tecwater. XRW 900-PA 220/4: 2 x S1BN8-F, 4G4+2×0.75 Tecwater.
Options
Explosion-proof version, flow ring, seals in viton, PTC or PT 100 in the stator, vibration damper, lifting bracket, additional seal (Sic-C) at motor side, EMC cable, insulation class H.
Weight
XRW 900-PA 110/4 = 260 kg. With flow ring = 338 kg. XRW 900-PA 150/4 = 295 kg.. With flow ring = 373 kg. XRW 900-PA 220/4 = 320 kg. With flow ring = 398 kg.
Motor data
| Motor |
PA 110/4 |
PA 150/4 |
PA 220/4 |
| Rated power (kW) |
11.0 |
15.0 |
22.0 |
| Rated current (A) at 400 V |
18.7 |
25.8 |
37.8 |
| Speed (min-1) |
2381 |
2381/2852 |
2852 |
| Motor efficiency (%) |
91.4 |
92.1 |
92.5 |
| Power factor |
0.85 |
0.84 |
0.84 |
1 = gear ratio i = 6, 2 = gear ratio i = 5
Mixer performance
| Hydraulic № |
Mixer power PP in kW |
Motor kW |
| 9032 |
7.0 |
11.0 |
| 9033 |
7.8 |
11.0 |
| 9034 |
8.4 |
11.0 |
| 9035 |
10.2 |
15.0 |
| 9033 |
11.5 |
15.0 |
| 9034 |
14.4 |
22.0 |
| 9035 |
18.5 |
22.0 |
| 9052* |
5.6 |
11.0 |
| 9053* |
6.3 |
11.0 |
| 9054* |
6.8 |
11.0 |
| 9055* |
8.2 |
15.0 |
| 9053* |
9.0 |
15.0 |
| 9054* |
11.3 |
22.0 |
| 9055* |
13.9 |
22.0 |
*with flow ring
Materials
| Part |
EC (cast iron) |
CR (stainless steel) |
| Motor housing |
EN-GJL-250 painted |
1.4571 (AISI 316) |
| Sliding bracket |
EN-GJL-250 painted / polyamide (CF-8M) |
1.4470 / polyamide (CF-8M) |
| Motor shaft |
1.4021 / EN-GJS-700-3 |
1.4021 / EN-GJS-700-3 |
| Propeller |
1.4571 (AISI 316) |
1.4571 (AISI 316) |
| Fasteners |
1.4401 (AISI 316) |
1.4401 (AISI 316) |
