Wedge Wire Filter Panel: Field Notes, Specs, and What Buyers Actually Ask
If you’re scanning the market for a wedge wire screen for sale, you’re probably balancing throughput, clogging risk, and lead times. I’ve toured a few factories and, to be honest, not all welds are equal. Below is the short list I’d want if I were speccing for a water plant or a mine dewatering line.
What’s trending (and why it matters)
Three things keep popping up in bids: tighter slot tolerance for reuse water, duplex alloys for aggressive chemistries, and modular panels to cut downtime. In fact, breweries and lithium brine processors are asking for lower differential pressure at the same flow—less energy, less fouling. Many customers say maintenance windows are shrinking; a non-clogging V-wire face is paying for itself faster than expected. If you need a wedge wire screen for sale that’s future-proof, start with metallurgy and weld integrity.
How it’s made (the quick process flow)
- Materials: SS304/316L, 2205 duplex, 904L; optional Ti for chloride-rich media.
- Method: V-shaped profile wire resistance-welded to trapezoidal/rectangular support rods for continuous slots (non-clogging).
- Finishing: Pickling + passivation; optional electropolish for food-beverage.
- QA/Testing: Slot gauge checks (laser/feeler), weld shear tests, flatness, burst/collapse, salt spray (as needed).
- Standards typically referenced: ASTM A240/A276, ISO 17824 (screen performance), ISO 9001; potable water systems often request NSF/ANSI 61.
- Real-world service life: ≈5–15 years depending on loading, abrasion, and cleaning regimen.
Key Specifications (Wedge Wire Filter Panel)
| Profile Wire | V-wire (triangle), 0.5–3.0 mm |
| Slot Opening | 0.02–10.0 mm (tolerance ≈ ±0.03 mm) |
| Open Area | ≈12–60% (depends on slot + wire) |
| Panel Size | Up to around 2500 × 2000 mm; custom shapes |
| Support Rods | Trapezoid/rectangular, 2–5 mm pitch |
| Alloys | 304, 316L, 2205, 904L; Ti on request |
| Typical ΔP | Lower than perforated plate at same flow; test shows ≈8–15% energy savings (application-dependent) |
Applications and field feedback
Used in water treatment (intake screens, MBR pre-screens), papermaking, food & beverage (lautering, CIP return), mining (dewatering, classification), chemical, and petroleum. One maintenance engineer told me cleaning cycles dropped from weekly to bi-weekly after switching to a tighter slot panel—surprisingly, no throughput penalty. If you need a wedge wire screen for sale for sanitary lines, ask for electropolish and full traceability.
- Case A: Municipal WWTP, APAC—316L panels, 0.5 mm slot; 11% lower pump energy over 6 months (SCADA logs).
- Case B: Brewery, EU—0.7 mm slot lautering plates; faster runoff, fewer grain bed upsets.
- Case C: Coal prep, AU—2205 panels; 9-month inspection showed minimal wire wear despite silica fines.
Who makes it (and how they compare)
Origin for this model: Anping, Hengshui City, Hebei, China. Below is a snapshot comparison I keep in my notebook—real-world use may vary.
| Vendor | Slot Range | Alloys | Lead Time | Certs |
|---|---|---|---|---|
| Woven Filtermesh (China) | 0.02–10 mm | 304/316L/2205/904L/Ti | ≈2–4 weeks | ISO 9001; NSF 61 on request |
| Johnson Screens (Aqseptence) | ≈0.05–6 mm | 304/316L/duplex | ≈3–6 weeks | ISO 9001; industry-specific |
| Hendrick Screen | ≈0.05–5 mm | 304/316L/duplex | ≈3–5 weeks | ISO 9001 |
Testing snapshots and paperwork buyers ask for
- Slot uniformity: ±0.03 mm typical; verified by optical gauge maps.
- Collapse/burst: panels withstand >0.4 MPa in lab jig (depends on rod pitch).
- Corrosion: 24–96 h salt spray for QA screening on 316L samples.
- Docs: Mill certs (EN 10204 3.1), weld maps, surface finish Ra when specified.
If you ping suppliers for a wedge wire screen for sale, ask for slot histogram data and a photo of the weld cross-section. It tells you a lot.
Final tip
Choose slot size by particle distribution, not by habit. And consider duplex when chlorides are >1000 ppm or temps run hot during CIP—cheap insurance, I guess.
References
- ISO 17824:2015, Petroleum and natural gas industries — Downhole equipment — Sand screens.
- ASTM A240/A276, Standard Specifications for Stainless Steel Plate and Bars.
- NSF/ANSI 61, Drinking Water System Components – Health Effects.
- ISO 9001:2015, Quality Management Systems — Requirements.
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