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Mechanical treatment

Fine screen FD

 

The FD range of self cleaning fine screens are an excellent solution to the problem of seperating solids from industrial and municipal process wastewaters.
 
The FD screens are designed to avoid blinding and clogging, minimising running and maintenance costs.
The influent to be screened enters the headbox where the velocity is reduced and the flow is distributed across the surface of the rotating cylindrical screen. Solids are retained on the outer screen surface and are removed by a doctor blade. Screened effluent drops down through the lower surface of the rotating screen into a collection tank for discharge. This reverse flow, combined with the pressure spray, effectively backwashes the screen, keeping it clean to receive incoming flows and preventing any internal build up of blinding material.

The unit is manufactured in 304 stainless steel.

 

Technical data

 

Capacity [m3/h]
 
 
 
FD 15 A
FD 30 B
FD 60 C
FD 120 C
FD 180
FD 240
Bar spacing [mm]
 
 
 
 
 
 
0,25
3
7
15
29
43
57
0,50
6
12
22
51
75
100
0,75
8
15
30
68
105
140
1,00
9
17
40
85
128
170
1,25
11
21
44
96
145
193
1,50
13
23
48
108
165
216
2,00
14
26
57
116
177
257
2,50
15
30
60
120
180
287
 
 
  
 

 
FD 15 A
FD 30 B
FD 60 C
FD 120 C
FD 180
FD 240
Inlet
DN 80
DN 80
DN 100
DN 200
DN 200
DN 250
Outlet
DN 100
DN 100
DN 200
DN 250
DN 250
DN 300
Over flow
DN 65
DN 65
DN 100
DN 150
DN 150
DN 150
Installed power [kW]
0,37
0,37
0,55
0,55
0,75
0,75
Wash water
¾”
¾”
¾”
¾”
¾”
¾”
745
745
1125
1125
1125
1125
687
1041
688
988
1288
1588
B1
465
843
402
702
1002
1302
686
686
1273
1273
1273
1273
H1/L1
410/ 225
410/ 225
850/ 176
850/ 326
850/ 476
850/ 626
H2/L2
145/ 225
145/ 225
231/ 176
258/ 326
258/ 476
282/ 626
H3
524
524
1110
1110
1110
1110

     All dimensions are in mm.