316L stainless-steel drum filter sits at the front of the filtration train, shaving fines (catalog baseline ~74 µm) and auto-washing on time + level so hydraulic head stays stable and sleeves downstream don’t foul. It’s a self-cleaning, spec-driven fit for intensive RAS in freshwater, brackish, or marine rooms.
Sizing doesn’t require guesswork. The catalog publishes flow/pipe baselines used across our drum family—e.g., 30 m³/h (Ø110 mm) and 60 m³/h (Ø160 mm)—so you can match manifolds cleanly and hold consistent residence times into disinfection. (Use these as integration references when pairing the stainless build with existing lines.)
Bottom line: stainless where corrosion fights back, auto backwash
What it is (and why intensive lines start here) A self-cleaning drum that sits at the front of the filtration train. Water meets the rotating stainless drum screen, fines around ~74 µm are taken out, and the controller auto-washes on level + time
How the cleaning logic works Two triggers share the load: the level trigger fires when differential head rises across the screen; the time trigger runs light “housekeeping” rinses between peaks. That combo is what operators lean on during heavy biomass or high-protein feed days. Route the backwash discharge to waste—don’t loop it back to the sump.
What “self-cleaning” means in practice
The drum keeps hydraulic head stable, so flows into bio and UV don’t wander.
Screens rinse without manual intervention, which keeps residence times into UV predictable.
You’re not stopping the line to hose anything down. That’s the win.
Sizing without guesswork Tie model to line flow and build manifolds to the published I/O: 30 m³/h → Ø110 mm (ED-30), 60 m³/h → Ø160 mm (ED-60). Start there and you won’t be stacking reducers later.
Materials and where they make sense Wet ends in this class are built for aquaculture water—stainless drum screen for dimensional stability; housings across the catalog use corrosion-resistant plastics (PP/UPVC) in many sizes and salinities. (If you require a specific stainless grade for the screen, confirm at PO.)
Where it plugs into the rest of the train Standard chain stays the same: drum → bio → (protein skimmer if used) → UV/ozone. Catch solids up front, let bio do chemistry on a calmer flow, skim dissolved organics if you’re brackish/marine, then finish with UV. That layout is the same one shipped in our modular RAS notes.
Operator view (day-to-day reality) You watch the level window and cycle count, not the inside of a clogged screen. If cycle intervals stretch, clean spray nozzles and verify the waste line runs free. Keep the controller’s level + time logic armed; that’s what keeps you out of the pit.
| Item | Spec / Options | Support |
|---|---|---|
| Body material | 304 stainless steel body; 316 for wear/critical contact parts (screen, bearings, fastener contact surfaces) | OEM |
| Screen (mesh) | Stainless drum screen, 60–74 µm options | OEM |
| Self-cleaning | Automatic backwash linkage (level / pump control) with high-pressure nozzle cleaning (7 kg-class) | OEM |
| Drive | Branded motor + reinforced, widened gears, waterproof housing for humid/salt-mist rooms | OEM |
| Controls | PLC/HMI-ready; pre-wired electrical & control; supports local HMI + remote (Modbus/Ethernet) | OEM |
| Integration | Sits at the head of filtration; ties in cleanly with protein skimmer / UV / ozone; parallel-ready | OEM |
| Throughput scaling | Custom drum diameter/length; select multiple units in parallel for higher flow | OEM |
| Serviceability | Quick-release screens/seals/bearings; access hatches, inspection windows, **lifting points | OEM |
| Documentation (handover) | Wiring diagrams, commissioning records, spare-parts inventory included | OEM |
| Factory configuration (integrated units) | Pre-assembled frame/enclosure, backflush system (spray/recirculation), 60–74 µm mesh standard | OEM |
Dual-trigger automation: level-linked cleaning plus scheduled rinses keeps the mesh open during feed spikes.
Corrosion strategy: 304 where it’s structural, 316 where wear and brine hit hardest.
High-pressure wash: 7 kg-class nozzles for full screen coverage on each cycle.
Drop-in at the front of the filtration train; downstream modules (skimmer, UV/ozone) connect on standard interfaces.
Pre-wired controls and PLC/HMI hooks mean faster commissioning and easy remote tie-ins later.
Note on flow/dimensions: this stainless series is dimensioned to order (drum diameter/length) and can be paralleled
Flows stay steady. The drum cleans itself on level + time, so head loss doesn’t creep up during feed spikes. UV downstream keeps its exposure window.
Less babysitting. High-pressure nozzle wash (~7 kg class) clears the screen each cycle—you watch the cycle counter, not the inside of a clogged drum.
Right materials in the right places. Structural parts in 304, wear and contact zones in 316 (screen, key fasteners, bearing contacts). That mix handles brine and spray without turning maintenance into a rust hunt.
Mesh that fits the job. 60–74 µm options are the catalog baseline for shaving fines before bio/UV.
Drive built for wet air. Branded motor, widened gears, and a waterproof housing keep the rotation smooth in salt-mist bays.
Drops at the front of the train (drum → bio → skimmer if used → UV/ozone), which protects nitrification and keeps UV sleeves clean.
Pre-wired controls with PLC/HMI hooks—easy to tie into your cabinet now, or later when you add remote.
Backwash to waste on a dedicated line, so you’re not recirculating sludge water.
Quick-release screens, seals, and bearings plus access hatches and inspection windows—five-minute checks instead of tear-downs. Lifting points make swaps sane.
Commissioning is faster. You get wiring diagrams, commissioning records, and a spares list in the handover pack.
Need more flow? Choose larger drum diameter/length or run parallel units. The spec is built for that.
Factory pre-assembled frames/enclosures with the backflush system onboard mean shorter install windows on multi-line sites.
Starving UV by letting the screen foul and head rise—dual triggers hold exposure time steady.
Dirty backwash loops
Pre-assembled, pre-wired, and shipped with the paperwork buyers actually ask for: ISO 9001 / CE / RoHS / IP references, certificate of conformity, packing list, factory test report, user manual, and warranty card. Container delivery is available when you’re staging multiple units.
We test hard so commissioning is boring (in the good way) Every powered device runs pressure/flow checks, 24-hour sealing, and accelerated aging (UV / heat / salt-spray), followed by electrical/functional tests. You’re not debugging a mystery box on day one.
Support that picks up the phone Standard device warranty: 12 months. Remote diagnostics and updates for control systems, with bilingual (EN/ZH) help for sizing, drawings, commissioning, troubleshooting, and CAD calls; for larger jobs, an engineer can be dispatched.
OEM/ODM without friction Branding and UI in your language, RS485/MODBUS hooks, UV/alarm tie-ins, preset cleaning schedules, and global power standards (110 / 220 / 380 V, 50/60 Hz). Need bid packs? We prep cert statements, drawings, and cost estimates.
Dates you can plan around We track the full arc: requirements → drawings → prototype → mass production → packaging → shipment → install guidance → after-sales. Typical modular lead time lands at 15–25 working days, with sea/LCL/air/express options and standard customs docs.
Handover pack (use this acceptance checkbox)
Factory test report attached ✅
ISO/CE/ROHS/IP refs included ✅
Manuals / wiring / maintenance docs present ✅
Remote commissioning slot booked (or on-site visit arranged) ✅
Set the stainless drum at the head of the filtration train → then bio → (skimmer if used) → UV/ozone. Catching solids first protects nitrification and keeps UV sleeves from fouling—your downstream dose stays predictable.
Manifolds: build to the published baselines—30 m³/h → Ø110 mm, 60 m³/h → Ø160 mm—so you’re not stacking reducers later.
Backwash line: route a dedicated discharge to waste. Never loop backwash into the sump/pond.
Controls: arm dual triggers on day one—level (differential head) + time (interval rinse). That’s what keeps the screen open during feed spikes and between them.
Panel tie-in: the unit is pre-wired and PLC/HMI-ready; leave a comms line if you plan to monitor over Modbus/Ethernet.
Fill & vent the chamber; confirm there’s no bypass around the drum.
Set design flow for your line (match the model’s I/O baseline). Watch the clean-side level stabilize.
Test a manual backwash—verify rotation and high-pressure nozzle spray, then switch to level + time auto.
Walk the train order (bio → skimmer → UV/ozone) before releasing to production.
Screen health: glance at cycle counts and differential level. If cycles stretch, clean spray nozzles and check the waste line runs free.
Keep auto on: leave level + time enabled; manual-only mode is how head loss sneaks up during heavy feeding.
Panel checks: confirm PLC/HMI comms and alarms are live after any power outage.
Frequent washes? Real load spike—good catch. Verify the level sensor is clean and not stuck high.
Rising head / lazy washes? Shorten the time interval, inspect nozzles, and confirm backwash water exits to waste without restriction.
UV dose drifting downstream? Check the drum first. Fouled screens raise head and disturb residence times—rearm level + time.
Pre-assembled frame/backflush system shortens install windows; plan parallel benches if you’ll scale flow later.
Pair clean-side tees for skimmer and UV/ozone now—same interface logic across the modular blocks, so expansions don’t become replumbs.
Q1) Where should the stainless drum sit in my RAS? At the head of the filtration train → then bio → (skimmer if used) → UV/ozone. That sequence protects nitrification and keeps UV sleeves clean.
Q2) What mesh size should I plan for? Catalog baseline is ~60–74 µm on the stainless drum screen—set to shave fines before bio/UV on intensive lines.
Q3) What triggers the self-cleaning? Two ways: level (differential head) and time (interval rinse). Dual triggers keep the mesh open during feed spikes and between them.
Q4) How is the screen washed? With high-pressure nozzle cleaning (~7 kg class) tied into the backwash linkage.
Q5) Where does backwash water go? To waste on a dedicated discharge line. Don’t loop it back to the sump/pond.
Q6) What about materials—why 316? Structural parts are 304; wear/critical contact zones (screen, key fasteners/bearing contacts) use 316 for corrosion resistance in wet, saline rooms.
Q7) How do I size manifolds and pick the model? Use the published baselines: 30 m³/h → Ø110 mm (ED-30), 60 m³/h → Ø160 mm (ED-60). Build to those diameters instead of stacking reducers later.
Q8) PLC/HMI—can I integrate it with my cabinet? Yes. Units are pre-wired and PLC/HMI-ready, with hooks for local HMI and remote comms (e.g., Modbus/Ethernet).
Q9) What routine checks matter most? Watch cycle count and differential level; if cycles stretch, clean spray nozzles and confirm the waste line runs free. Keep level + time auto enabled.
Q10) How does drum performance affect UV dose downstream? Clean screen → stable head → predictable residence time into UV. If dose drifts, check the drum first.
Q11) Can I scale flow later? Yes—select larger drum diameter/length or run parallel units. The stainless series is designed for that.
Q12) What lands in the handover pack? Wiring diagrams, commissioning records, spare-parts list—the stuff that makes acceptance and service sane.
