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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 300
FD 600
FD 900
FD 1200
Bar spacing [mm]
 
 
 
 
0,50
12
25
38
50
0,75
24
54
82
110
1,00
36
76
114
152
1,25
44
96
145
193
1,50
48
108
165
216
2,00
57
116
177
257
2,50
60
120
180
287

 

 

 

 
  
 
FD 300
FD 600
FD 900
FD 1200
Inlet
DN 100
DN 200
DN 200
DN 250
Outlet
DN 200
DN 250
DN 250
DN 300
Over flow
DN 100
DN 150
DN 150
DN 150
Installed power [kW]
0,18
0,18
0,18
0,18
Wash water
1”
1”
1”
1”
1200
1200
1200
1200
650
950
1250
1550
B1
300
600
900
1200
1800
1800
1800
1800
H1/L1
1050/ 150
1050/ 300
1050/ 450
1050/ 600
H2/L2
490/ 150
490/ 300
490/ 450
490/ 600
H3
1330
1330
1330
1330
     All dimensions are in mm.