Industrial UV sterilizers in RAS are the “final barrier” that knocks down pathogens in the recirculation loop without adding chemicals. They use UV-C light at 254 nm to damage microbial DNA/RNA so bugs can’t replicate. Dose matters: industry practice targets well above the 15 mJ/cm² baseline that prevents photoreactivation, and stubborn viruses like IPNV typically need ~250 mJ/cm² for 99.9% inactivation.
For sizing, flow and lamp power go hand in hand. A common 30 m³/h line runs three 80 W tubes; double the flow (≈60 m³/h) and you scale lamp count/power accordingly (e.g., six × 120 W). Lamps last about 9,000 hours before output drops enough to justify replacement.
In practice, UV sits downstream of mechanical/biological steps and trims pathogen load without shifting water chemistry. Routine care is simple—keep quartz sleeves clean so intensity stays on target. As installed in shrimp hatcheries and fish farms, this setup has cut disease pressure (e.g., vibrios) and improved survival when the dose and hydraulics are matched to the job.
For packaged, in-line units, YUTANK’s EUV-PVC series covers 30–300 m³/h with defined tube counts, dimensions, and 9,000 h lamp life—useful when you need a fast, spec-driven match to system flow.
Where it lives in the loop: after solids removal and bio, right before water heads back to culture tanks. That placement trims pathogen load without fighting the biofilter or altering pH/ORP. In practice it’s the “final barrier,” and farms that added UV at this point reported lower vibrios/white-spot pressure and better survival—exactly because the dose is consistent and upstream solids are under control.
Design options are straightforward. You’ve got external units (flow through quartz sleeves) and submersible styles (lamps in the water), both valid in farms; choose based on piping layout, service access, and how you plan to keep sleeves clean. Keep the quartz clear and the intensity stays on target. Lamps have a practical life around 9,000 h—swap when output drops enough to risk dose.
Sizing ties to flow. A common 30 m³/h line runs three × 80 W; double the flow to ~60 m³/h and you scale lamp count or power (e.g., six × 120 W). That’s a clean mental model teams use on site before you fine-tune with UVT and headloss.
Two details that separate a tidy install from a headache: – Upstream filtration. Drum filters at ~74 µm keep the sleeve from fouling so UV dose doesn’t crash mid-run.
– Coordination when UV is bundled into an integrated unit. If your microfilter module ships with built-in UV, make sure backwash frequency and exposure time are aligned to the actual line flow, or you’ll trade filtration wins for disinfection misses.
| Attribute | EUV-PVC-30-AR | EUV-PVC-60-AR | EUV-PVC-100-AR | EUV-PVC-150-AR | EUV-PVC-200-AR | EUV-PVC-300-AR |
|---|---|---|---|---|---|---|
| Capacity (m³/h) | 30 | 60 | 100 | 150 | 200 | 300 |
| Lamp Power (W) | 120 | 120 | 120 | 150 | 150 | 150 |
| Total Lamp Power (W) | 360 | 720 | 1080 | 1200 | 1350 | 2200 |
| Voltage & Current | 220 V, 32 A (all models) | |||||
| Lamp Length (mm) | 1200 | 1200 | 1200 | 1600 | 1600 | 1600 |
| Dimensions L×W×H (mm) | 1250×220×500 | 1250×285×435 | 1250×340×570 | 1650×340×570 | 1650×395×630 | 1650×445×700 |
| Lamp Life (h) | 9,000 | 9,000 | 9,000 | 9,000 | 9,000 | 9,000 |
| Number of Tubes | 3 | 6 | 8 | 8 | 9 | 12 |
| Inlet / Outlet (mm) | 110 / 110 | 160 / 160 | 200 / 200 | 200 / 200 | 250 / 250 | 315 / 315 |
| Material | UPVC (all models) |
30 m³/h line: EUV-PVC-30-AR, PP body, 3 × 80 W tubes, lamp life ≈ 9,000 h (with control box).
60 m³/h line: EUV-PP-60-AR, PP body, 6 × 120 W tubes, lamp life ≈ 9,000 h (with control box).
Disinfection mechanism: UV-C at 254 nm; dose = intensity × exposure time (mJ/cm²). ~15 mJ/cm² to prevent photoreactivation; ~250 mJ/cm² for 99.9% inactivation of IPNV.
Typical duty life: lamps ~9,000 h before output decline merits replacement.
Placement: after solids/bio as the “final barrier” back to culture tanks.
UV-C at 254 nm knocks out pathogens without changing water chemistry. No dosing. No residues. Just light and contact time that you can measure and audit.
Put it where it hurts the bugs most Drop UV after solids removal and bio, right before water feeds back to tanks. Pathogen load gets trimmed at the door, which is exactly where farms have seen lower vibrios/white-spot pressure when dose is kept consistent.
Clear dose yardsticks. Plan and validate against the known markers: around 15 mJ/cm² to prevent photoreactivation; tougher viruses like IPNV ~250 mJ/cm² for 99.9% inactivation. That gives QA a hard reference, not guesswork.
Sized to real flows. Off-the-shelf EUV-PVC models span 30–300 m³/h with defined tube counts, lamp power, and dimensions, so matching line capacity is fast.
Predictable upkeep. Keep quartz sleeves clean; swap lamps at about 9,000 h when output drops enough to risk dose. Simple cadence, easy to schedule.
30 m³/h → EUV-PVC-30-AR
60 m³/h → EUV-PVC-60-AR
100–300 m³/h → step up through EUV-PVC-100/150/200/300-AR Each model’s tube count, lamp power, and dimensions are predefined—handy when you’re locking a BOM.
Cleaner feed, steadier dose. Upstream drum filters at ~74 µm keep sleeves from fouling, so intensity holds between services.
Integrated modules stay coordinated. If UV ships inside a microfiltration package, tie exposure time to actual line flow and backwash timing so neither step steals performance from the other.
YUTANK delivers UV alongside microfiltration, skimmers, bio, and degassing as modular blocks, so hydraulics and interfaces are already thought through—less site improvisation, faster commissioning.
A labeled, tested UV unit with the paperwork buyers actually ask for: ISO 9001, CE, RoHS/IP references, certificates of conformity, packing lists, factory test reports, user manuals, and a warranty card—packed to export standards (carton/foam or ISPM-15 wooden crate).
Before it ships (how we verify) Each device runs a multi-step QA sequence: pressure/flow checks, 24-hour sealing on closed bodies, material aging (UV/heat/salt-spray), and full functional tests on controls and auxiliaries. It’s meant to catch headaches at the factory, not at your farm.
Docs that pass audits Need compliance packs for tenders or customs? We prep CE/ISO statements, SGS inspection reports, certificates of origin, and the usual shipping docs (packing list, invoice, B/L).
Service windows that match real projects Remote bilingual tech support (EN/ZH) covers proposals, sizing, install drawings, commissioning assist, troubleshooting, and CAD calls. On larger jobs, an on-site engineer can be arranged.
Warranty & spares Standard device warranty is 12 months, with lifetime technical consulting on operations; control systems support remote diagnostics/upgrades. Spare parts ship fast via international couriers.
Packaging & logistics, simplified Containerized or mixed-mode transport is fine. Protection uses internal foam + stretch film + five-ply cartons or fumigated wooden crates; we support FCA/FOB/CIF/DAP terms as needed.
OEM/ODM is normal, not “special” From multi-language UIs and global voltages (110/220/380, 50/60 Hz) to region-specific pipe interfaces and color/material picks—we confirm on CAD/3D before production so your team signs off upfront.
Lead times you can plan around Typical workflow: requirements → design → drawings → prototype → mass production → packaging → shipment → install guidance → after-sales. Modular systems usually run 15–25 working days; custom timelines are tracked. Manuals, wiring, maintenance guides, and datasheets ship in multiple languages.
Global track record Exports across 20–30+ countries with RAS deployments from hatcheries to research labs. That matters when you need references or local coordination.
A quick acceptance checklist (steal this):
Factory test report attached ✔︎
CE/ISO/ROHS/IP paperwork in the crate ✔︎
Manuals + wiring + maintenance guide ✔︎
Spare lamps/sleeves listed on the packing sheet ✔︎
Q1) Where should the UV sit in my RAS? Right after solids + bio treatment, before water returns to tanks. It’s the “final barrier” in the loop. Place protein skimmer and other mechanical steps upstream of UV so the lamp isn’t fighting turbidity.
Q2) What UV dose should I target? For routine disinfection, start at 15 mJ/cm². If you’re battling IPNV, aim much higher—≈250 mJ/cm². Those numbers are straight from our application notes.
Q3) How do I size the unit by flow? Match your recirculation rate to the EUV-PVC series:
30 m³/h → EUV-PVC-30-AR (3 tubes, total 360 W)
60 m³/h → EUV-PVC-60-AR (6 tubes, 720 W)
100 m³/h → EUV-PVC-100-AR (8 tubes, 1080 W) All EUV-PVC models list inlet/outlet diameters, lamp count, dimensions, and power so you can line-up plumbing without guesswork. (Example: 30/60/100 m³/h models have 110/160/200 mm I/O.)
Q4) What’s the electrical requirement? EUV-PVC models run 220 V, 32 A (see table).
Q5) Lamp life & maintenance? Plan lamp replacement at ≈9,000 h. Keep quartz sleeves clean; fouling cuts dose fast. (That “replace at ~9k hours” note is repeated across models and our integrated-unit BOMs.)
Q6) Will UV change my water chemistry or leave residues? No. It’s physical disinfection at 254 nm, so there’s no chemical addition and no residuals to manage.
Q7) My water isn’t crystal clear. What pre-treatment do I need? Run a drum/microfilter (~74 µm) ahead of UV. That keeps particulates off the sleeves and holds your delivered dose. (Our XTBXG drum specs show 74 µm standard across sizes.)
Q8) Can I buy a standalone UV or bundle it with other modules? Either works. You can pick a single UV sterilizer or combine with sedimentation, microfiltration, skimmer, biofilter—everything uses standard interfaces for mix-and-match builds.
Q9) What are the pipe sizes on the UV housings? EUV-PVC series publishes both ends. Example mapping: • 30 m³/h → 110 mm in / 110 mm out • 60 m³/h → 160 mm / 160 mm • 100 m³/h → 200 mm / 200 mm (Models up to 300 m³/h step to 250–315 mm.)
Q10) Materials—can these handle seawater? The EUV-PVC line uses UPVC housings; elsewhere in the catalog you’ll also see 304/316 stainless in related gear. Choose by salinity/corrosion profile.
Q11) Do you offer installation help and after-sales support? Yes—English manuals, remote video guidance, on-site engineers for larger projects, plus quick global parts shipping.
Q12) Warranty? Standard 12-month warranty on core equipment, with structural warranties on tanks/housings and a defined spare-parts/response workflow.
Quick picker (flow → model → pipe size):
30 m³/h → EUV-PVC-30-AR → 110 mm
60 m³/h → EUV-PVC-60-AR → 160 mm
100 m³/h → EUV-PVC-100-AR → 200 mm (Need bigger? 150–300 m³/h options scale to 200–315 mm.)
If you want, tell me your flow rate and where the UV sits in your loop. I’ll map the exact model + pipework so your plumber doesn’t have to guess.
Where it sits in the loop Drop UV after solids removal and bio, right before water goes back to culture tanks. Protein skimming typically happens first (after bio), then UV takes the last pass so pathogens don’t ride back into the ponds.
Plumbing, at a glance
Match the model to your line flow. EUV-PVC covers 30–300 m³/h with fixed in/out diameters per model—e.g., 110 mm (30 m³/h) up to 315 mm (300 m³/h). Use those as your pipe and valve baselines. UPVC piping is standard.
Give UV clean water. Upstream drum filters at ~74 µm keep sleeves from fouling and hold dose steady between services.
Electrical hook-up All EUV-PVC models are specced at 220 V, 32 A; check the control box nameplate during energization.
Commissioning checklist
Plumb the unit according to the model’s inlet/outlet size; purge air and verify there’s no bypass around the quartz chamber.
Start the line at the rated flow for your model (30/60/100/150/200/300 m³/h). Don’t overdrive it on day one.
Verify placement: solids → bio → (protein skimmer if used) → UV → tanks.
Confirm upstream filtration at ~74 µm is online before you enable UV lamps.
Log lamp hours from the first run—your maintenance plan keys off this counter. Nominal life ≈ 9,000 h.
Daily/weekly care Keep the quartz sleeves clean; scale or biofilm will choke intensity and drop dose long before a lamp burns out. Schedule quick visual checks and wipe-downs as part of weekly routines.
When UV is inside an integrated module Some compact drum-filter packages ship with UV onboard. Sync the UV exposure time with real line flow and the backwash cycle—if those aren’t coordinated, either filtration or disinfection will slip.
End-user notes your team will ask about
Dose logic: it’s intensity × time. Design yardsticks in the file: ~15 mJ/cm² to avoid photoreactivation; ~250 mJ/cm² for tough targets like IPNV when you need 99.9% hit rates.
Lamp replacement: plan swaps around 9,000 h to keep dose honest.
Docs & support: shipments include manuals/wiring/maintenance guides; remote install help and spares shipping are available for overseas sites.
