Submersible mixers type RW 200 RW 650

Product Overview

Description

Submersible mixers type RW 200 – RW 650

 

Main industries and applications

A compact and versatile mixer with a wide range of applications, including use in aggressive and abrasive liquids.
•Mixing and stirring applications in sewage treatment plants and industrial areas such as:
- Equalization of sewage
- Biological processes (aerobic, anoxic and anaerobic)
- Selector (contact zone)
•Applicable for homogenization highly concentrated sludge and slurries such as:
- Primary, secondary and digested sludge in storage and buffer tanks
- Lime and mineral slurries
•Mixing applications in pump sumps as prevention of deposits and floating crusts (RW 200/280)
•Hazardous locations:
- Certification for ATEX (Ex II 2G k Ex d IIB T4), FM and CSA available as an option

 

Key customer benefits

Economical
•The RW mixer range includes several submersible mixers with integral motors ranging from 1.3 to 13 kW (1.7 – 17.5 hp)
•Sulzer offers efficient multiple and gear-driven mixers either standard or explosion-proof motor enclosures
•Reduced energy costs
•Short mixing times

Reliable
•Compact, water pressure-tight design
• Minimal risk of motor overloading

 

Easy to replace existing installations
•Our wide range of brackets and adapters make them suitable for existing guide rails and lifting devices without modification to meet customer needs.

RW 400 and RW 650 features and benefits

 

1 Efficient three-phase motor, water pressure-tight encapsulated. Protection type IP 68, stator insulation class F (155°C). Motor shaft and rotor dynamically balanced
• Economical and reliable design
• Continuous running 24/7
2 Pre-loaded upper bearing
• Prevents spinning through the design of the outer ring
• Eliminates backlash
• Ensures longer bearing life
3 DI-system
• Seal monitoring and indication that an inspection is due
4 Solids deflection ring
• Protects the mechanical seal from damage due to the ingress of solids or fibrous matter
5 Enhanced mechanical seal protection
• Keeps the mechanical seal clog-free
• Greatly extends the life of the seal
6 Hydraulic-optimized, 2- or 3-blade axial flow propeller design
• Achieves high thrust and therefore a high flow capacity
• Strong rotating flow in axial direction
• Ensures high mixing performance
• Reduces maintenance through self-cleaning
7 Abrasion-resistant, galvanically insulated mast bracket
• Reduces the risk of electrochemical corrosion
8 TCS (Thermo Control System)
• Provides a warning or switches off the motor automatically before the permissible temperature limit is exceeded, whether due to high-temperature medium or another problem source
9 Corrosion resistant execution
• Suitable for industrial applications and nitrification tanks inwastewater treatment plants

 

RW 200 and RW 280 features and benefits

Prevention of deposits and floating crusts in pump sumps, it keeps the sump clean, it limits the accumulation of solids and consequently the pumps blockages. Intermittent duty when used in combination with the pumps, to reduce the power consumption.

Efficient three-phase motor, water pressure-tight encapsulated. Protection type IP 68, stator insulation class F (155°C). Motor shaft and rotor dynamically balanced
• Economical and reliable design
DI-system
•Seal monitoring and indication that an inspection is due
Solids deflection ring
•Protects the mechanical seal from damage due to the ingress of solids or fibrous matter
Hydraulic-optimized, 2-blade axial flow propeller design running at high speed (4 poles)
•Strong rotating turbulent flow in axial direction
•Highly efficient for homogenization of raw sewage and floating crusts
•Ensures high mixing performance
•Reduces maintenance through self-cleaning
TCS (Thermo Control System)
•Provides a warning or switches off the motor automatically before the permissible temperature limit is exceeded, whether due to high-temperature medium or another problem source
Versatile mounting bracket for hanging installation
•It allows to adjust both vertical and horizontal orientation of the mixer to remove the sediments from the dead zones of the wet sump
•The hanging installation allows retrofitting the mixer in critical pumping stations even when they are in operation. The installation footprint is minimal