SWT850-OEM

 

The SWT850-OEM is an automatic self-cleaning filter designed to remove Ultra High and Variable Total Suspended Solids (TSS) from a fluid stream. Each filter unit contains a motor-driven, spiralshaped brush that continuously cleans collected debris from inside the filter element. Solids collect at the end of the filter housing to be expelled through an automatic purge valve or a continuous concentrate stream. The system does not require high pressures to operate and performs at very low differential pressure. No backwash, cross flow or booster pumps required. The Purge chamber can be configured to dump solids directly to waste or for concentration of solids.

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Technical Specifications for Model SWT850-OEM

Specification Range
Inlet: 2” #150 Flange OR 2” MNPT
Filtrate Outlet: 2” #150 Flange OR 2” MNPT
Purge Outlet: 2” #150 Flange OR 2” MNPT
Max Flow: 10 – 75 gpm
Filtration Rating: 15 – 100 micron
Max TSS: 10,000+ ppm
Max Operating Press: 8.3 bar (120 psi) @70°F
Min Operating Press: <0.1 bar (<1 psi)
Head Loss: <0.1 bar (<1 psi)
Drive Motor: 1hp, 3-Ph, 230/460VAC

MATERIALS OF CONSTRUCTION

Part Material
Wetted Housing PVC, 2205 SS
Seal EPDM, Buna-N or Viton
Cleaning Brush Acetal, Nylon 6.12 & 316 SS
Filter Elements 316L SS

Performance Specification

The spiral shaped brush is designed to rotate continuously, so there is always less than 1 psi head loss across the filter screen. Flow through the filter unit is limited by hydraulic loading on the screen, which is driven primarily by liquid flow rate and viscosity. Flow rates listed below assume a viscosity of 1.0 cP and TSS up to 1000 mg/l. The unit should be plumbed with a check valve on the filtered outlet with 2 psi cracking pressure. Operating pressure in the 1 to 10 psi range is optimal, though the unit is capable of 120 psi. Liquid Recovery Rate: 99% Max Temperature: 120° F (49° C)

How It Works

Applications of the Model SWT850-OEM

  • TSS and BOD Reduction
  • Recycling of Secondary Wastewater
  • Protection of Monitoring Equipment
  • Nozzle Protection
  • Bearing and Seal Protection
  • Wastewater Filtration

Flow Rates for TSS up to 1000 ppm

Note: The higher the solids, the higher the perceived apparent viscosity. At TSS above 1000 ppm, lower flow rates are required to avoid fouling of the filter screen

Filter Screen Nominal Filtration Rating (microns) Max Flow Rate (gpm, [m3 /hr])
SWT810-FE-BB 15 20 [4.5]
SWT810-FE-GG 20 30 [6.8]
SWT810-FE-YY 25 40 [9.1]
SWT810-FE-RR 50 75 [17.0]