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Overview

Rapid Installation

Phone Corgin by 2pm, and we can have a renowned Spiral Aerator installed and operating by as early as 8am, next day. Sounds too good to be true? It’s not.*  It’s Rapid.

Spiral Aerators can be installed rapidly and painlessly in almost any wastewater treatment system. They are exceptionally reliable and provide efficient aeration with strong directional mixing. These features make them particularly useful in emergency situations where other aeration plant has broken down or needs supplementing, and where horizontal flow is required such as in oxidation ditches and aerated lagoons.

Sterling reliability

Originally designed for mixing animal slurry and sludge, the Spiral Aerator design has a strong emphasis on extremely low maintenance and an efficient, anti-rag impeller. Although very few are now used for this purpose, their reliability and low-maintenance design makes them the aerator of choice for remote and unmanned sites.

No routine maintenance

Spiral Aerators have no submerged bearings or couplings, which are the traditional source of maintenance problems. Only stainless steel and GRP components are used below the water level.

Choice of mountings

Thanks to the iconic forest green GRP floats, these versatile aerators are perfectly suited for lagoons and tanks with fluctuating water levels. A bracket-mounted option is also available for mounting to a bridge structure or tank wall where the water level is constant.

Versatile

Spiral Aerators have been used in an incredibly wide range of applications, from polluted surface water lagoons at several major UK airports to large oil refineries, from sewage works to landfill leachate lagoons.

These unique and versatile aerators remain a very popular choice worldwide.

* Typical example. May depend on equipment availability, and site conditions such as availability of power supply, suitable structure for mooring aerators and other factors.

Features & Benefits

FEATURES ASSOCIATED BENEFITS

Powerful horizontal flow, giving excellent mixing and oxygen dispersion capabilities

Prevents dead zones and reduces settlement, resulting in improved treatment performance

No immersed motors, bearings or seals

Reduces risk of equipment failure resulting in maintenance cost savings

No splashing or release of spray

Reduces environmental and health issues associated with bio-aerosol release

No scheduled maintenance requirements and long service life

Gives maintenance cost savings and allows reliable unattended operation

All wetted parts stainless steel or GRP

Reduces risk of corrosion, giving an extended asset life

Precision German engineering

Robust design and reliability ensures long asset life

Helicoid spiral propeller

Reduces risk of ragging with associated efficiency and maintenance benefits

‘Unsinkable’ foam-filled float assembly

Easy to install and relocate in ‘live’ tanks; remains at optimum immersion depth in spite of fluctuating water levels

No on-site assembly needed

Allows rapid installation and cost-effective installation

Stainless steel feet

Prevents aerator from grounding, even in very shallow water

Videos

Specification

 

WBL-I

WBL-Is

WBL-II

WBL-III

WBL-IV

WBL-V

WBL-VII

WBL-X

WBL-XV

WBL-XVIII

WBL-XXII

Total kW

1.1

1.5

2.2

3

4

5.5

7.5

11

15

18.5

22

Full Load Current

(FLC) (A)

2.5

3.5

4.6

6.3

9.3

10.6

14.3

20.5

28.5

35.0

41.0

Start Up Current

Star Delta (Y-Δ) (A)

 

 

 

 

 

29

36

49

82

84

93

Start Up Current

Direct on Line (DOL)

 

 

36

44

86

88

106

145

246

252

279

Start Up Current Soft Starter

(max current set point) (A)

 

 

14

19

28

 

 

 

 

 

 

Electrical Supply Connector

Size (A)

 

 

16

16

16

16

16

32

32

63

63

Suggested Generator Size

Star Delta (Y-Δ) (kVA)

 

 

 

 

 

21

25

34

57

58

65

Suggested Generator Size

Direct on Line (DOL) (kVA)

 

 

25

30

60

61

73

100

170

175

193

Suggested Generator Size

Soft Starter (kVA)

 

 

10

14

20

 

 

 

 

 

 

Applications

Where are Spiral Aerators used?

Why are they selected?

   

Oxidation ditches and carousels

Horizontal aeration and mixing

Annulus tanks (‘doughnuts’)

Ease of installation

Aeration lanes

Emergency hire

Shallow tanks

Reliability

Remote/unmanned sites

Low maintenance

Temporary or supplementary aeration

Lagoons