Water and Wastewater Treatment
INDUSTRY

Wedge Wire Screens for Water and Wastewater Treatment

From raw water intake at a reservoir to final effluent screening at a wastewater treatment plant, wedge wire screens serve as the primary separation barrier. The V-wire profile resists clogging, maintains consistent flow, and operates with minimal maintenance across municipal, industrial, and hydroelectric water systems. Demand is driven by the EU Urban Wastewater Treatment Directive (2024/3019, with secondary treatment required by 2035, tertiary by 2039, and quaternary by 2045), the US EPA Clean Water Act §316(b), and the PFAS NPDWR rule for drinking water systems.

APPLICATIONS

Where Our Screens Work

Municipal Water Intake

Self-cleaning Coanda screens and low-velocity T-screen intake, compliant with Clean Water Act 316(b) and EU Water Framework Directive.

Industrial Wastewater

Self-cleaning Coanda screens, sieve bend screens, plus cylindrical and rotary drum screens for industrial effluent treatment.

Hydroelectric Intake

Coanda screens with no moving parts, developed in partnership with ADENCO.

Drinking Water Treatment

Self-cleaning Coanda screens with flat and cylindrical screens for pre-screening and filter underdrains.

Desalination Pre-treatment

Super Duplex intake screens for seawater feed.

Agricultural Water

Self-cleaning Coanda screens, sieve bend screens, and passive intake screens requiring no power for irrigation systems.

Dewatering

Sieve bend screens for sludge dewatering at wastewater treatment plants.

Underdrain Laterals

Wedge wire screen laterals for filter media support and even backwash distribution in gravity and pressure sand filters.

Ion Exchange Laterals

Cylindrical screen laterals retain resin beads in ion exchange vessels while allowing even fluid distribution and collection.

Resin Traps

In-line wedge wire strainers capture migrated resin and protect downstream pumps, valves, and instruments.

MATERIALS

Materials for Water and Wastewater Treatment

SS 304General applications, fresh water and neutral environments.
SS 304LWelded freshwater systems, municipal pre-treatment.
SS 316LChlorinated and brackish water.
Duplex 2205Aggressive chloride-bearing wastewater and brackish intake duty.
Super DuplexSeawater, desalination.

Regulatory Compliance

US Clean Water Act Section 316(b)
EU Water Framework Directive
EU Urban Wastewater Treatment Directive 2024/3019
US EPA PFAS NPDWR (drinking water)
FAILURE MODES & MITIGATION

How Screens Fail — and How We Prevent It

Blinding from fibrous debris

V-wire profile sheds rags, leaves, and biofilm during backwash or natural flow reversal. Slot geometry resists wrap-around fouling that plagues bar racks.

Biofouling and zebra mussel growth

Higher-grade alloys and optional surface treatments slow biological attachment. Through-slot velocity tuning reduces deposition.

Corrosion in chlorinated systems

SS 316L baseline for chlorinated municipal water; Duplex 2205 for brackish and aggressive chlorides; Super Duplex for seawater contact.

Hydraulic surge and impingement

Reinforced support bar spacing and continuous-weld construction tolerate flow surges and pressure cycling without slot deformation.

HOW TO SPECIFY

What to Send for an Accurate Quote

The more of these you can share when you request a quote, the faster we respond with a defensible specification.

Slot opening0.5 – 6 mm for intake screens; 0.1 – 1 mm for fine filtration
Screen geometryCoanda · T-screen intake · sieve bend · cylindrical · rotary drum · flat panel
Design flowm³/h per screen module
Source water typeRiver · lake · reservoir · sea · municipal · industrial effluent
Material gradeSS 304L · SS 316L · Duplex 2205 · Super Duplex
Through-slot velocity target≤ 0.15 m/s (0.5 fps) for 316(b) fish protection
Operating temperatureAmbient – 40 °C typical
End connection / mountingFlange · weld neck · header bar · skid frame

Specify Your Water and Wastewater Treatment Screen

Send your application parameters. We respond within one business day.

REQUEST A QUOTE