How to Inspect Vane Mist Eliminator Geometry Before Delivery

For a vane mist eliminator, the internal gas path is created by the blade geometry.

That means dimensional inspection is not merely cosmetic.

It confirms that fabrication preserved the geometry reviewed during technical approval.

Start with the Approved Profile

The inspector should have access to the approved vane cross-section.

Important characteristics may include:

blade spacing, turning geometry, pockets or hooks, overall module depth, and plate thickness.

Blade Spacing

Spacing should be checked at several locations.

Uneven spacing may result from:

poor assembly, welding distortion, or incorrect spacers.

The concern is not microscopic variation.

It is whether the module still represents the approved flow passage.

Vane Profile

The formed blade should match the approved:

bends, curves, or directional changes.

A supplier should not simplify the profile during fabrication without approval.

Drainage Features

Where the design includes:

drainage hooks, pockets, or channels,

verify that they are present and correctly oriented.

A missing drainage feature may not be obvious from an external module view.

Plate Thickness

Confirm the material thickness where specified.

This supports both:

mechanical consistency and material-cost control.

Module Dimensions

Measure:

length, width, depth, and interface dimensions.

For multiple modules, also confirm that the complete arrangement matches the vessel or duct opening.

Alignment

Bent or twisted vane modules can create:

uneven gas passages and installation difficulty.

Check overall straightness and frame squareness where relevant.

Weld and Fastener Inspection

Inspect:

welds, clips, bolts, or other vane attachments.

Loose blades can become a serious operational problem.

Material Verification

The vane, frame, and hardware materials should correspond with the approved BOM.

If different alloys are intentionally used, those differences should be documented.

Engineering Takeaway

Vane separator inspection should verify the complete functional geometry, not just external module size.

Blade spacing, profile, drainage features, thickness, alignment, attachment, and material all contribute to conformity.