T-screens — passive cylindrical wedge-wire screens mounted on the end of a submerged intake pipe in a “T”, drawing water from all sides at very low slot velocity for excellent fish protection.
Intake Screening for Water & Desalination Plants
A T-screen is a passive intake screen mounted on the end of a submerged intake pipe and arranged like the letter “T”, with cylindrical wedge-wire elements on each arm. Water enters from all sides at a very low through-slot velocity, giving excellent fish and larvae protection wherever an intake pipe terminates in open water — a workhorse of modern SWRO intakes.
Passive, all-sides, low-velocity intake
V-profile wire on each arm presents a large, low-velocity slot area.
Water enters radially from every direction, halving local velocity.
Periodic compressed-air burst clears slots of debris and biofilm.
Copper-nickel construction resists marine growth between cleans.
1–10 mm slots set the exclusion size for debris, eggs and larvae.
Bolts onto the submerged intake-pipe end as a drop-in module.
| Parameter | Typical | Notes |
|---|---|---|
| Through-slot velocity | ≤0.15 m/s | Fish-protective |
| Slot opening | 1–10 mm | Sets exclusion size |
| Material | 90/10 Cu-Ni / super duplex | Marine service |
| Cleaning | Air-burst | Periodic, automatic |
| Mounting | Submerged pipe end | Open-water termination |
Continue across the screening knowledge base
Low-velocity, no moving parts — 316(b) benchmark.
Read MoreClustered passive cylinders for high capacity.
Read MoreCylindrical passive screens parallel to the flow, outside-to-inside.
Read MorePulsed compressed air sheds debris and biofilm.
Read MoreThe velocity / entrainment / impingement driver.
Read MoreOffshore submerged intakes and velocity caps.
Read MoreOur engineers select, size and material-match intake screening — t-screens (tee screens) and the full train — for your debris load, fish-protection duty and downstream desalination process.
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