Rotary Screens External

Rotary Screens External (Gaparator ERS) or External Rotary Drum Screens for Waste Water Screening applications

Rotary Screens External (otherwise known as External Rotary Drum Screens) are a range of Waste Water Screening Machines that operate with a pumped or gravity feed entering the inlet launder, which is designed to reduce the flow velocity and ensure a uniform and controlled distribution of liquids and suspended solids.

This is presented to a circumferentially wound external wedge wire drum, with dewatering taking place immediately on contact with the carefully selected Slot Gap screen cylinder.

Rotary Screens External

Suspended solids on rotation by the External Rotary Screens are efficiently removed by a spring loaded doctor blade, whilst the screened liquid passes through the cylinder and performs a systematic backwash of the screen opening on its exit to the outlet chamber.

Rotary Screens External Image Gallery – Please “click” to view full scale image

An integral wash facility is provided with Rotary Screens to intermittently flush the screen, providing maximum open area at all times, affording high capacity throughputs with the ability to separate fine and hostile particles. Rotary Screens External Machine widths range from 300mm to 3000mm and diameters from 410mm to 920mm.

On-site demonstration facilities are available for our Rotary Screens and the entire Gaparator range of waste water screening machines, with interchangeable screen elements to determine the ideal separation. Gap Technology Limited also provide structural steel work including platforms, handrailing and access ladders with a bespoke design, commissioning and installation service.

Rotary Screens External / technical information

TypesModular
Media: LiquidsGrey Water, Industrial Effluents, Process Water, Sewage & Storm Water
Media: SolidsTSS Reduction, Industrial and Municipal Process Screenings
Screen TypesRotating screens, Coarse and Fine Separation
MaterialsStainless Steel, Stainless Steel (304) and Stainless Steel (316)
FeaturesSelf cleaning, Mechanical Spring Loaded Scraper
Maximum aperture size (mm)2.5
Minimum aperture size0.25
FLOW CAPABILITIES (m3/hour)
Figures are based on average throughputs and conditions. For specific applications please contact technical sales
MODELSLOT GAP (mm)Unladen Weights
0.250.500.751.001.502.002.50Nominal
ERS 3001840557090100110146
ERS 500255575100125127130170
ERS 7504090125130143159172200
ERS 100054120130149165174188230
ERS 125068130150168175190206260
ERS 150081152170181195210223290
ERS 2000108157184198215225236330
ERS 3000120179205224232255295380
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