Wilo-Vardo WEEDLESS-F | Wilo

Wilo-Vardo WEEDLESS-F

Wilo-Vardo WEEDLESS-F

Your advantages

Optimum agitation in basin with square or rectangular floor plan
Operational reliability owing to wear-resistant propeller
Easy installation for existing systems
Floating version for basins with alternating water levels

Recommended services

Design

Low-speed vertical mixer with gear motor

Application

The mixers are suitable for both intermittent and continuous duty in wastewater and sewage (with and without faeces) as well as in sludge:

For suspension of solid matter
For homogenisation

Equipment/function

Drive unit
Variable length of the mixer shaft
2-blade or 3-blade propeller

Typekey

NO VALUE

Technical data

Mixer

Max. circulation capacity: 7.5 m³/s
Propeller diameter: 2.50 m ... 1.50 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
Protection class: IP55, with protective fan cover
Insulation class: F (155 °C)
Ambient temperature: -20 ... +40 °C

Materials

Motor housing: EN-AC
Gear housing: EN-GJL-200
Output shaft: Steel (C 45)
Motor plate:
- Steel, hot-galvanised
- Stainless steel A2
- Stainless steel A4
Mixer shaft:
- Steel, coated
- Stainless steel A2
- Stainless steel A4
Rotary shaft seals: FKM
Hub: PUR/A4
Propeller blades: PUR

Construction

Vertical mixer for permanent installation in basins, on platforms or mounting brackets. Floating version for free placement in the basin.

Drive unit

Mixer-type gear motors with mixer lantern and additional bearing are used as the drive unit. Rated power of 0.37 kW to 7.5 kW in motor efficiency class IE3. High-efficiency IE4 versions are also available as an option. The motors are suitable for continuous duty. The drive unit can also be complemented with different options (e.g. suitability for explosive environments).

Motor plate

The motor plate connects the drive unit to the structure by suitable fixations. The motor plate can be modified to system-specific requirements to do this. A gas-tight version is also available. This version facilitates operation in potentially explosive atmospheres.

Mixer shaft

The mixer shaft made of thick-walled, hollow steel links the drive unit to the propeller unit. Shrink discs and tensioning kits connect the components to the drive and propeller unit.

Propeller

2-blade or 3-blade solid propeller with a nominal propeller diameter of 2500 mm to 1500 mm. The individual propeller blades are attached to a hub on the mixer shaft. Here, the propeller blade angle can be set to 30, 35, 40 or 45°. The flow direction can be configured towards the water surface or the ground of the basin depending on the design.

Scope of delivery

Vertical mixers with motor plate
Propeller blades packed individually, installation on-site
Operating and maintenance manual

Installation and operating instructions