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WATER AND WASTEWATER TECHNOLOGIES

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Series XRW 900

ABS submersible mixer XRW 900

The compact ABS 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)
En