What is a Header–Lateral / Hub–Lateral System?
Apollo’s Header–Lateral and Hub–Lateral systems are screened manifold assemblies designed to ensure uniform collection and distribution of process streams inside pressure vessels.
Using wedge wire screen laterals, these systems deliver:
Header–Lateral System:
Laterals extend from a central header pipe.
Ideal for flat-bottom or horizontal vessels.
Hub–Lateral System:
Laterals radiate outward from a central hub.
Best suited for elliptical or dished vessel heads.
| Industry / Sector | Typical Applications |
|---|---|
| Water Treatment | DM / softeners / mixed beds, sand & anthracite filters, carbon towers |
| Power Plants | Condensate polishing, cooling water filters, guard filters |
| Food & Beverage | Carbon decolorization, polishing filters |
| Oil & Gas / Refining | Amine filters, catalyst retention, polishing filters |
| Chemical & Mining | Media retention, resin traps, dewatering, solvent recovery |
| Desalination | Pretreatment filters, seawater intake strainers |
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Apollo wedge wire internals are trusted by global OEMs for their: • Precision engineering & dimensional accuracy • High open area, controlled slot tolerances & non-clogging performance • Ability to handle corrosive, abrasive, or high-temperature fluids • Full QA/QC: MTRs, welding QA, passivation, surface finish reports • Custom engineering based on flow, velocity, pressure & vessel geometry Apollo delivers dependable, long-life internals for mission-critical filtration applications. |
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• Header / Hub — horizontal or radial configurations • Connections: Threaded, Flanged, or Welded • Lateral construction: o Screen-Only o Screen-Over-Perforated Pipe (for higher structural load) • Vessel fitment: flat, conical, or dished heads • Uniform spacing for balanced flow distribution • Scalable from small ion-exchange vessels to large industrial towers |
| Design Feature | Benefit to Customer |
|---|---|
| Continuous V-wire slots | High open area → low pressure drop, predictable flow |
| Self-cleaning geometry | Non-clogging, reduced downtime |
| Resistance-welded construction | High mechanical strength & collapse resistance |
| Custom slot sizes (30 µm onward) | Reliable media retention |
| Tailored configurations | Fits any vessel geometry (header or hub) |
| High backwash efficiency | Uniform reverse flow → longer media life |
| Material flexibility | Excellent corrosion resistance across all process fluids |
| Parameter | Range / Options |
|---|---|
| Slot Opening | 30 µm – 1 mm+ |
| Lateral Diameter | 20 mm – 100 mm |
| Lateral Length | Up to vessel diameter |
| Materials | SS304, SS316L, Duplex 2205/2507, 904L, Hastelloy, Titanium |
| Connections | Threaded, Flanged, Welded |
| Vessel Fitment | Flat, Elliptical, or Dished Heads |
| Feature | Wedge Wire Lateral | Perforated Pipe Lateral |
|---|---|---|
| Slot Geometry | Continuous V-wire → self-cleaning | Straight holes → choke easily |
| Open Area | 25–60% | 8–15% |
| Flow Distribution | Highly uniform | Uneven flow paths |
| Media Retention | Precise (30 µm onwards) | Weak fine media retention |
| Strength | High collapse resistance | Medium |
| Performance Under Backwash | Excellent | Moderate |
| Durability | Very long life | Moderate life |
| Feature | Wedge Wire Lateral | PVC Lateral |
|---|---|---|
| Temperature Resistance | Excellent (hot water, condensate) | Poor (softens or deforms) |
| Chemical Compatibility | Suitable for brine, solvents, hydrocarbons | Limited chemical resistance |
| Strength | Very high | Low — prone to cracking |
| Slot Accuracy | ±0.025–0.05 mm | Inconsistent |
| Lifespan | 10–20+ years | Short (UV, pressure & thermal aging) |
| Flow Efficiency | High open area | Low–medium open area |
| Industrial Suitability | Power, oil/gas, chemical, mining | Small FRP or plastic filters |
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Apollo’s Header–Lateral and Hub–Lateral assemblies offer: • Superior flow distribution • High mechanical strength • Precise slot control • Long-term reliability • Major performance advantages over perforated & PVC laterals These systems ensure maximum efficiency, minimum downtime, and long service life across all water treatment and process industries. |
