dwg AVX-0210 · rev. B
Reactor internals (screens & supports)
Carrying the catalyst.
Screens, supports and shielding for vessels and reactors: catalyst support grids, V-wire internals, mist eliminators and reinforcement mesh, built to licensor spec.
Inside a reactor, the internals do thankless, critical work: carry hundreds of tonnes of catalyst, distribute flow evenly, keep the bed where it belongs: at temperature, under pressure, for years. Averinox engineers and supplies these screens and supports in the alloys that survive there: from 321 to Inconel™ and Hastelloy™.
The programme covers support grids and beams, outlet collectors and scale catchers, V-wire (wedge wire) screens, and the knitted-mesh internals above the bed: mist eliminators and coalescers that protect downstream equipment from entrained droplets.
Beyond vessels, the same materials solve support and shielding problems across industry: anchoring mesh that keeps refractory linings intact through thermal shock, cathodic-protection tapes for buried pipelines, spacer structures, and EMI shielding for sensitive electronics. Everything segmented to enter through the manway and supplied with full traceability; supervision and mounting included when wanted.
Applications
- Catalyst support and hold-down in reactors and columns
- Outlet collectors, scale catchers and distributor trays
- Mist elimination and coalescing in separators
- Refractory reinforcement in furnaces and cyclones
- EMI shielding and cathodic-protection components
Features & benefits
- Licensor-specification work with material certificates
- Exotic alloys as standard practice, not exception
- Segmented designs sized for manway entry
- Site supervision, inspection and mounting on request
- Shutdown-driven planning: parts ready before the window opens
Specifications
spec.json ↗| Property | Value |
|---|---|
| Catalyst support grids, outlet collectors, V-wire screens, scale catchers, mist eliminators, coalescers | |
| To licensor specification or client drawing, with material traceability | |
| Catalyst beds of tens to hundreds of tonnes, distributed without bypass | |
| Segmented for manway entry; supervision and mounting available | |
| Refractory anchoring mesh, cathodic-protection tapes, composite inlays | |
| EMI shielding meshes and gaskets in conductive alloys |
Materials & variants
Material choice follows the process: 304/316L and 321 for general and elevated-temperature service, Inconel™ and Incoloy™ for heat, Hastelloy™ for aggressive chemistry, Duplex™ where strength and chloride resistance meet. All with certificates and traceability under ISO 9001.
Frequently asked questions
Can you work directly from our licensor's specification?
Yes, that is routine work. We quote against the licensor spec, supply the documentation package alongside the hardware, and keep full material traceability from melt certificate to installed part.
How do internals get into the vessel through a manway?
Designs are segmented and bolted: each segment passes the manway and assembles inside. We deliver lifting and assembly drawings, and can supervise or perform the installation during your shutdown.
Can parts be ready before our turnaround window opens?
That is the planning model: quote against the licensor spec or drawing early, fabricate ahead, and stage the segments with documentation before the window opens. The internals wait for the shutdown, never the other way round.
What is a scale catcher and when do I need one?
A screen basket at the reactor inlet or on top of the bed that traps corrosion products and scale before they plug the catalyst. If pressure drop climbs between turnarounds while the catalyst is still active, a scale catcher usually pays for itself in one run.
Can you build a mist eliminator for an existing vessel without drawings?
Yes. Vessel inner diameter, manway size and the duty (gas, velocity, droplet size) are enough to engineer a segmented pad with support grid. Where needed we measure on site during a stop.
RFQ
Send us the drawing. Or let us draw it.
Share your specs, a sketch or a worn-out sample. Our engineers reply within one business day with a practical proposal.