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Multiple Screens

Multiple coanda screens

  • Standard aperture 1.0mm
  • One-piece welded construction with integral endplates (except Type A)
  • All 304 stainless steel (316 available on request)

 

The multiple screens are designed to be bolted together to make longer screens for larger projects.

There are five types of multiple screen models; Type A, Type AB, Type C, Type F and Type K.

The Type A and Type AB screens are full height screen with a head loss of 1270mm; the Type A screens have a removable screen panel for applications with very abrasive sediment loads.  All the other screen types are of fully-welded construction.  Type C screens are half height with a head loss of 700mm; the Type F screens are quarter height with a head loss of 450mm.  The Type K screens are double height screens, with a head loss of 1900mm.

With the exception of the Type A screens, all the screens can be equipped with boulder protection bars.

Scottish Coanda Installation

Full height

 

Type A – Full Height (1270mm Head loss)

These screens have an abstraction capacity of 140 l/s per metre width, and a head loss of 1270mm. Three widths of Type A units are available:

Type Width (mm) Rated Flow (l/s) Frame Weight (kg) Screen Weight (kg) Drawing
A-1534 (Full width) 1534 210 108 47 AQS-001/2
A-1010 (Two-third width) 1010 140 72 31 AQS-001/2
A-510 (Third width) 510 70 44 16 AQS-001/2

Type AB – Full Height (1270mm Head loss)

These screens also have an abstraction capacity of 140 l/s per metre width, and a head loss of 1270mm. Two widths of Type AB screen units are available:

Type Width (mm) Rated Flow (l/s) Weight (kg) Drawing
AB-1000 (Full width) 1000 140 63 AQS-005
AB-500 (Half width) 500 70 35 (est) AQS-005
Full Height screens - Type A and B (4)-2

Half Height

Type C – Half Height (700m Head loss)

These screens also have an abstraction capacity of 65 l/s per metre width, and a head loss of 700mm. Two widths of Type C screen units are available:

Type Width (mm) Rated Flow (l/s) Weight (kg)   Drawing
C-1500 (Full width) 1500 100 50 AQS-010
C-750 (Half width) 750 50 27 AQS-010
Type C Aquashear Coanda Screen in river with flowing water

Quarter Height

Type F – Quarter Height (450mm Head loss)

These screens have an abstraction capacity of 35 l/s per metre width, and a head loss of only 450mm. Two widths of Type F screen units are available:

Type Width (mm) Rated Flow (l/s) Weight (kg) Drawing
F-1000 1000 35 27 AQS-040
F-1500 1500 50 34 AQS-041
Quarter height type F

Double Height

Type K – Double Height (1900mm Head loss)

These screens also have an abstraction capacity of 250 l/s per metre width, and a head loss of 1900mm.  The Type K screen is available in 1m wide units:

Type Width (mm) Rated Flow (l/s) Weight (kg) Drawing
K-1000 1000 250 165 AQS-080
Type k Coanda Screen