rs-24Similar in design to the RS-22 except for a larger
capacity. Two removable splash guards on each side.
rs-48Similar to the model RS-24 but a larger and more robust
version. Two removable splash guards on each side. Smallest
available perforation for this model is 1.0 mm.
rs-416Four removable inspection hatches on each side. Capacity
of approximately 10 MGD. Smallest available perforation for this
model is 1.0 mm.
rs-11The smallest model. Utilizes a direct drive with a flexible
rubber connection and two permanently lubricated trunnion wheels to
support the drum. Removable steel splash guard on one side.
rs-22Model utilizes a carbon fiber poly chain drive system with
no trunnion wheels and integral automatic overflow system. One
removable splash guard on each side.
• Innovative drive design results in low maintenance and high
reliability.
• Friction driven rotating cleaner brush results in very low
spray water usage. Up to a 90% reduction in spray wash usage over
continuous spray wash systems.
• Automatic overflow bypass system with overflow sensor protects
sensitive downstream processes.
• No vertical or slotted seals of any kind eliminates the risk
of pass through.
• High capacity and high capture rate with a small
footprint.
• Very low energy use - even the largest models have only 3/4 hp
motors.
• Improves capacity and performance of downstream processes.
• A great fit for many different municipal and industrial
applications.
Roto-Sieve dRum ScReenSinnovaTive Technology anD high
reliabiliTy
roTo-Sieve aDvanTageSThe Roto-Sieve drum screen is an internally
fed, self cleaning, inclined drum screen that separates particles
and fibers from almost any liquid. The self-cleaning Roto-Sieve
design was developed over four decades ago and has proven to
deliver excellent performance. With over 4000 units installed
globally, the Roto-Sieve’s unsurpassed quality, innovation, and
reliability are well documented.
With high reliability, a long service life, and low energy
consumption, Roto-Sieve drum screens are an excellent investment.
The innovative drive system on our larger models requires no
lubrication or trunnion wheels which significantly lowers
maintenance while also improving operational reliability. Due to
its internal feed and circular perforations, Roto-Sieve offers the
best separation that can be achieved mechanically. A fiber or hair
is unlikely to orient itself at a right angle and against the water
flow to pass through the perforation. This results in a high
removal efficiency for hair or fibers while also eliminating the
possibility of permanent blinding caused by the stapling of these
materials.
advanced designRoto-Sieve drum screens are manufactured in 304
or 316L
stainless steel with five different models available for various
flows. For all models, splash guards are provided with
stainless
steel covers. The friction driven rotating cleaner brushes are
manufactured in a heat resistant material. The innovative drive
system on our larger models requires minimal maintenance, no
lubrication, and no trunnion wheels. Standard drum perforations
are 0.8, 1.0, 1.5, 2.0 and 3.0 mm with other perforations
available upon request. All models except for the RS-11 are
supplied
with automatic overflow bypass systems and ventilation outlets
as standard.
MuniciPal aPPlications
PriMary screening
Fine screening Prior to MeMbranes
Fine screening in lieu oF clariFiers
sludge screening
sludge thickening
industrial aPPlications
Poultry, Meat, and Fish Processing
Fruit/vegetable Processing
PulP and PaPer
beverage (beer, Wine, other)
dairy
Fiberglass
recycling (Plastic and Metal)
sludge thickening
®
Roto-SievedRum ScReenmodelS
More than 4,000 roto-sieve druM screens have been suPPlied to
both industrial and MuniciPal
Plants WorldWide.
no tRunnion
wheelSequals low
maintenance and high reliability.
10
7
8 119
4
6 21 53
1) Assumes waste water with a TSS of 200 mg/l and 2.0 mm
diameter drum perforations. Flow speed reducer is recommended at
high flows.2) Static weight with drum filled to the overflow
level.3) Sized for unrestricted gravity discharge.4) Intermittent
operation with cycle time dependent on application.5) Larger
Perforations available for special applications.6) 1mm Perforation
reduces capacity by approximately 20%; 0.8mm perforation reduces
capacity by approximately 35%.
CleanTek Water Solutions7984 University Avenue NEFridley, MN
55432
Tel: [email protected]
technical sPeciFications
drum screen Model rs-11 rs-22 rs-24 rs-48 rs-416
Capacity (gpm) 1 gpm 140 500 1500 3310 6980
Length in 48 3/8 75 114 1/8 118 1/2 197 1/4
Width in 23 5/8 35 3/8 35 3/8 61 7/8 61 7/8
Height in 40 1/8 59 63 3/8 91 1/2 100 3/8
Net Weight lb 220 815 1080 1764 3086
Operating Weight 2 lb 265 882 1146 2160 3483
Inlet Diameter in 5 10 10 12 24
Outlet Diameter 3 in 6 10 12 20 24
Overflow Outlet Diameter in NA 8 8 10 16
Spray Wash Connection in 3/4 1 1 1 1
Drum Rotational Speed rpm 29 18.2 18.2 9.1 9.1
Min. Spray Wash Pressure psi 60 60 60 60 60
Spray Wash Consumption 4 gpm 7 18 32 32 63
Drum Angle, Standard º 6 6 6 6 6
Motor Horse Power hp 0.33 0.75 0.75 0.75 0.75
Available Perforation Sizes 5,6 mm 0.8 – 3.0 0.8 – 3.0 0.8 – 3.0
1.0 – 3.0 1.0 – 3.0
Roto-Sieve drum screens consist of a perforated stainless steel
drum (1) with internally fixed spiral flights. (2), The spiral
flights transport the separat-ed particles out of the drum. The
drum rotates by carbon fiber poly chains (3) and is driven by a
gear motor (4). Incoming water is fed into the drum through an
inlet pipe (5), which distributes the water evenly over a large
area of the drum’s interior. During passage through the drum, the
water is screened through the drum’s perforations and collects in
the inclined trough (6) underneath. Separated particles are
transported out of the drum through the screenings outlet (7).
Dewatering continues throughout transport in the drum. To prevent
clogging of the drum’s perforations, all models are fitted with a
friction driven rotating brush (8) and a spray header with spray
nozzles (9). Roto-Sieve drum screens are completely encased in
removable splash guards (10) and equipped with a ventilation
exhaust (11).
form anD funcTion
