automatic box-type PP drum filter with a stainless screen and dual backwash triggers (level + time). It strips fines at about ~74 μm, which keeps your bio and UV from fighting dirt and lets the loop hold a steady flow.
Sizing is straightforward. The catalog maps line flow to clear models and pipe baselines—e.g., ED-30 at 30 m³/h with Ø110 mm I/O, and ED-60 at 60 m³/h with Ø160 mm I/O. That makes it easy to match manifolds without a pile of reducers.
Where it lives: right at the head of the filtration train in RAS—solids first, then bio/ozone/UV—so the rest of the system stays efficient. That’s the standard layout used across the modular builds.
If you’re speccing for high-density tanks or tight rooms, the boxed PP body and automatic wash logic are exactly what keep operators out of the pit during peak loads while holding UV dose downstream.
What this box-type drum actually does It’s your solids gatekeeper. Water enters the box, hits the stainless screen, and fines around ~74 μm get stopped before they ever reach bio or UV. A small controller watches the line and kicks off backwash by level (rising head across the screen) and by time (your set interval), so the mesh stays open during busy hours.
Body + screen, built for wet rooms The housing is PP—light, corrosion-resistant, and happy in freshwater, brackish, or marine bays—while the rotating screen is stainless. That combo keeps the structure from rust dramas and gives the screen the stiffness it needs to hold mesh accuracy.
Where it lives in the train (and why) Park it at the front of the filtration module: drum → bio → (skimmer if used) → UV/ozone. Catching solids first protects nitrification and keeps the UV sleeves from fouling, which is exactly how the modular RAS layouts in the file are arranged.
How you size it without guesswork The catalog maps flow to models and pipework:
ED-30 for 30 m³/h with Ø110/Ø110 mm I/O
ED-60 for 60 m³/h with Ø160/Ø160 mm I/O That lets you build manifolds to the right diameter from day one instead of stacking reducers later.
Controls that actually help operators
Dual triggers keep cleaning predictable: level-based washes catch sudden load spikes; time keeps the screen tidy between them.
Clean drum = steady hydraulic head = happier bio and stable UV dose downstream. (This coupling shows up across the RAS notes.)
What “intensive” means here You’re running higher biomass and feed, so fines build fast. A box-type drum with automatic wash logic buys you two things: fewer hands in the pit during peaks and a more stable flow to the bio/UV stages. The spec’s ~74 μm baseline is set exactly for that role.
Interfaces and add-ons Standard inlet/outlet sizes match the model (see above). Backwash has its own discharge line—route it to waste, not back to the loop. If you’re bundling with a skimmer or UV, the same interface logic used across the modular blocks keeps the hand-offs clean.
| Model | Rated Flow (m³/h) | Screen Mesh (µm) | Inlet / Outlet | Backwash Control | Housing | Notes |
|---|---|---|---|---|---|---|
| ED-30 | 30 | ≈ 74 | Ø110 / Ø110 mm | Dual trigger — level + time | PP | Route backwash to waste (dedicated discharge). |
| ED-60 | 60 | ≈ 74 | Ø160 / Ø160 mm | Dual trigger — level + time | PP | Same layout; use the model’s I/O as your manifold baseline. |
Where it sits in the train: at the front of the filtration module → then bio → (skimmer if used) → UV/ozone. That sequence protects nitrification and keeps UV sleeves from fouling.
Body: corrosion-resistant PP for freshwater, brackish, and marine bays in this size class.
Screen: stainless drum screen (mesh ≈ 74 µm) paired with automatic backwash to hold hydraulic head and downstream UV dose. (Grade per order; confirm at PO if you require a specific alloy.)
Backwash logic: level trigger catches sudden load spikes; time keeps the screen tidy between peaks.
Plumbing: build manifolds to the model’s published diameters (Ø110 mm on ED-30, Ø160 mm on ED-60) instead of stacking reducers later. Provide a separate backwash discharge to waste.
30 m³/h → ED-30 → Ø110 mm
60 m³/h → ED-60 → Ø160 mm
Gets the heavy lifting done up front Put the drum at the head of the train and you stop fines at ~74 µm before they ever touch bio or UV. That’s how you keep nitrification steady and sleeves from fouling.
Backwash that thinks for itself Two triggers, one clean screen: level reacts to sudden load, time keeps things tidy between peaks. Operators don’t have to babysit the cycle.
Sized to real manifolds No guesswork on pipework—models publish I/O: ED-30 → Ø110 mm, ED-60 → Ø160 mm. Build to those baselines and skip the reducer spaghetti.
Wet-end materials that don’t sulk PP housing handles freshwater, brackish, and marine bays in this class without the rust drama; pair that with a stainless screen and you get stiffness where it counts.
Protects downstream dose Clean drum = stable head = predictable residence times into UV. The placement is intentional so your disinfection math holds.
Simple tie-ins Dedicated backwash discharge to waste and standard in/out stubs mean quick installs and clean service routes.
Where it shines
Intensive RAS lines that see fast fines build-up.
Tight rooms where automatic wash saves operator hours but you still need stable hydraulics.
Each drum ships pre-assembled / pre-wired with the paperwork buyers actually ask for: ISO 9001 / CE / RoHS / IP references, certificate of conformity, packing list, factory test report, user manual, and a warranty card. Container delivery is available if you’re staging multiple units.
Factory tests before it ever sees your water Devices run a multi-step QA sequence: pressure/flow checks, 24-hour sealing, and accelerated aging (UV/heat/salt-spray), followed by electrical/functional tests. You’re commissioning known-good hardware, not a science project.
Support that actually picks up Standard device warranty: 12 months. You also get remote diagnostics/updates for control systems and bilingual (EN/ZH) help for sizing, drawings, commissioning, troubleshooting, and CAD calls; on larger jobs, we can dispatch an engineer.
OEM/ODM without the friction Branding, multi-language UIs/labels, RS485/MODBUS, UV fault alarms, preset backwash schedules, and global power standards (110/220/380 V, 50/60 Hz). We also prep tender packs—certs, drawings, cost estimates—when you need to bid.
Timelines you can plan around Tracked workflow from requirements → drawings → prototype → mass production → packaging → shipment → install guidance → after-sales. Typical modular lead time lands around 15–25 working days; sea/LCL/air/express are all supported with standard customs docs.
Hand-off made easy (keep this checklist)
Factory test report included ✅
ISO/CE/RoHS/IP refs in the pack ✅
Manuals / wiring / maintenance docs present ✅
Remote commissioning slot
Right at the head of the filtration train → then bio → (skimmer if used) → UV/ozone. Catching solids first protects nitrification and keeps UV sleeves clean.
Q2) What mesh size is standard? About ~74 μm on the stainless screen—set for intensive lines to shave fines before bio/UV.
Q3) How do I pick the model and pipe sizes? Match line flow to the published I/O baselines: ED-30 → 30 m³/h → Ø110 mm, ED-60 → 60 m³/h → Ø160 mm. Build manifolds to those diameters from day one.
Q4) What triggers the backwash? Both level (rising head across the screen) and time (your interval). Dual triggers keep the mesh open during peaks and between them.
Q5) Where does the backwash water go? To waste on a dedicated discharge. Don’t loop it back to the sump/pond.
Q6) What are the wet-end materials? Can it live in brackish/marine rooms? PP housing with a stainless screen. PP handles freshwater, brackish, and marine bays in this class; the stainless screen keeps mesh accuracy and stiffness.
Q7) Any special install notes? Set the box level, leave service clearance, confirm no bypass around the screen, and route a free-draining backwash line. Then arm level + time in the controller.
Q8) How does the drum affect UV performance downstream? Clean screen → stable hydraulic head → predictable UV exposure time. If dose starts drifting, check the drum first.
Q9) What lands with the crate? A pre-assembled / pre-wired unit plus acceptance docs: manuals, warranty, and inspection/material certificates.
Q10) How do you prove quality before shipping? Factory pressure/flow, 24-hour sealing, and accelerated aging (UV/heat/salt-spray), followed by electrical/functional checks. Exports include ISO 9001 / CE / RoHS / IP references.
Q11) Warranty and support? Standard device warranty 12 months, with remote diagnostics/updates and bilingual (EN/ZH) help for sizing, drawings, commissioning, troubleshooting; on larger jobs we can dispatch an engineer.
Q12) Quick picker (flow → model → I/O) 30 m³/h → ED-30 → Ø110 mm
Park the drum at the head of the filtration train → then bio → (skimmer if used) → UV/ozone. Catching solids first protects nitrification and keeps UV sleeves clean, so your downstream dose math holds.
Model ↔ manifolds: build to the published diameters—ED-30 → Ø110 mm, ED-60 → Ø160 mm—so you’re not stacking reducers later.
Backwash routing: run a dedicated discharge to waste. Don’t loop it back to the sump/pond.
Controls: enable dual triggers on day one—level (differential head) + time (interval). That’s how the screen stays open between services.
Orientation & access: set the box level, leave clearance for hatch/service sides and the backwash line. (You’ll thank yourself later.)
Fill & vent the chamber; confirm there’s no bypass around the screen.
Dial design flow for the model (30 or 60 m³/h). Watch clean-side level stabilize.
Backwash test: trigger a manual cycle to verify spray, rotation, and discharge path. Then arm level + time logic.
Train check: verify the downstream order (bio → skimmer → UV/ozone). You want the UV seeing the cleanest water you can give it.
Screen health: quick look at the mesh and differential level; if cycles lengthen, clean the spray nozzles. Mesh baseline ≈74 μm.
Logs: keep a simple sheet of cycle counts vs. feed rate. Spikes = real load, not “mystery fouling.”
Housekeeping: keep the backwash discharge clear; no kinks or dips that hold sludge water.
Frequent backwash? You’re actually catching load (good). Check feed spikes and confirm level sensor is clean—not stuck high.
Under-washing / rising head? Open interval a bit and verify nozzle pressure. Make sure discharge goes freely to waste.
UV dose drifting downstream? Inspect the drum first. A fouled screen raises head and can starve UV of exposure time by disturbing hydraulics. Re-arm level + time logic.
Leave tees/valves for a protein skimmer and UV/ozone on the clean side—same interface logic across the modular blocks, so hand-offs stay tidy.
Wet-end materials: PP housing for the box, stainless
