Vardo WEEDLESS-VM
Mixer
- Optimum agitation in basins of different designs
- Wear-resistant propeller material ensures process reliability
- Customised building connection ensures easy installation for existing systems
- Standard IE3 and IE4 motors ensure low energy consumption
- System-specific thrust direction with flow direction to the basin floor or to the medium surface
- System-specific dimensioning
Recommended services
Design
Low-speed vertical mixer with gear motor for stationary installation.Liquid
For suspension and homogenisation in commercial areas of:
- Process sewage
- Sewage containing faeces
- Wastewater (with small amounts of sand and gravel)
- Sludge
Equipment/function
- Drive unit
- Motor plate
- Mixer shaft
- Hub
- Propeller blade
Type key
Example: | Wilo-Vardo WEEDLESS-VM.F7-1/325.39-400Ex |
Vardo | Mixer, vertical with standard motor |
WEEDLESS | Series with gear motor |
VM.F | Version: securely attached |
7 | Size |
1 | Model |
3 | Number of propeller blades |
25 | x100 = nominal propeller diameter |
39 | Propeller speed |
400 | /100 = rated power in kW |
Ex | Ex-rated |
Technical data
Mixer
- Thrust: 115 ... 4315 N
- Propeller diameter: 1.50/2.00/2.50 m
- Diameter of mixer shaft: 70 ... 114 mm
- Shaft length: from 2 m
- Fluid temperature: 3 … 40 °C
Drive unit
- Mains connection: 3~400 V, 50 Hz/3~460 V, 60 Hz
- Drive power: 0.37 … 7.50 kW
- Operating mode: S1
- IP rating: IP55, with protective fan cover
- Insulation class: F (155 °C)
- Ambient temperature: -20 … +40 °C
- Motor efficiency class: IE3 and IE4
Materials
Drive unit
- Motor housing: EN-AC
- Gear housing: EN-GJL-200 (ASTM A48 Class 30)
- Output shaft: Steel (C45)
- Motor plate: Stainless steel A4 (AISI 316L/316Ti)
Hydraulics
- Mixer shaft: Stainless steel A4 (AISI 316L/316Ti)
- Rotary shaft seals: FKM
- Hub: PUR/A4 (AISI 316L/316Ti)
- Propeller blades: PUR
- Cover cap: PUR
Construction
Drive unit
IE3/IE4 gear motor for continuous operation with mixer lantern and additional bearing. The available rated power of the motor is between 0.37 kW and 7.5 kW.
Motor plate
The motor plate connects the drive unit to the structure. For this purpose, the motor plate is available in three versions. If required, the motor plate can be designed according to the system-specific requirements.
Mixer shaft
Mixer shaft made of thick-walled hollow steel. The mixer shaft is connected to the gear motor by a shrink disc. The hub is mounted on the other end of the mixer shaft via two clamping sets.
Propeller
2-blade or 3-blade propeller made of solid material. The nominal diameter of the propeller is 1500, 2000 or 2500 mm. Each propeller blade is attached to the hub. The setting angle of the propeller blade is determined in the process. The direction of thrust can be directed towards the water surface of basin floor. A cover cap is fitted to the hub to protect the hub and propeller fixture from dirt and corrosion.
Scope of delivery
- Vertical mixer with motor plate, mixer shaft and hub
- Propeller blades packed individually, installation on-site
- Operating and maintenance manual
Options
- Motor version:
- Ex-rated in accordance with FM
- Special voltages
- Thermal motor monitoring using bimetallic or PTC sensors
- Design of the motor plate according to system-specific requirements