Replacement Guide

How to Replace Demister Vane

Step-by-Step Guide · Scrubber Tower Maintenance · OEM-Spec Chevron Vanes

Tools Needed

Tools & Materials Required

Prepare all supplies before disassembly.

Torque Wrench & SocketsOpen the manway and vane frame.

OEM Vane AssemblyMatch width and material.

Frame Sealing GasketSeal the bank perimeter.

Hoist & Lifting HooksHandle heavy vane modules safely.

Descaling SuppliesClean the tower support grid.

Thread LubricantRelease and protect frame fasteners.

Step-by-Step

How to Replace Demister Vane

Follow each step carefully and observe site safety procedures.

Isolate, Purge & Cool Tower

Close gas valves, stop pumps, purge to safe gas levels, lock out all points and cool hot surfaces.

Follow confined-space entry requirements.

Open Manway & Release Frame

Remove the cover diagonally, then label and release bars, clamps and frame fasteners.

Store hardware by original position.

Lift Old Vanes & Inspect Grid

Hoist the bank evenly, inspect for corrosion or deformation, and clean and repair the support grid.

Avoid tilting the module and bending chevrons.

Install New Vane Assembly

Lower the bank level, align it to gas flow, eliminate wall and section gaps, and fit the perimeter gasket.

Confirm correct gas-flow orientation.

Fasten, Seal & Commission

Torque evenly, replace the manway gasket and test at low load while monitoring carryover and pressure drop.

Observe performance for 1–2 operating hours.

Safety Notes

Safety Requirements

These measures are mandatory throughout the replacement process.

Confined-Space Permit

Entry is allowed only after isolation, purge and authorization.

Full Chemical PPE

Use respirator, protective suit and anti-slip boots.

Secure Lifting & Hot Work

Rig modules securely and prohibit hot work until flammable vapor is cleared.

Avoid These

Common Mistakes to Avoid

Avoid these errors to prevent leakage, damage and premature failure.

×Reversed Gas-Flow Direction

Destroys droplet-capture performance.

×Gaps or Excess Clamp Force

Creates bypass or deforms chevrons.

×Reusing Corroded Supports

Allows new vanes to sag and shift.

Products You May Need

OEM-spec replacement parts for this maintenance task.

Mist Elimination

Demister Vane

Chevron-vane gas-liquid separator with high flow capacity, low pressure drop and broad corrosion-resistant material options.

View Product

Mist Elimination

Demister Pad

Wire-mesh droplet separator for efficient 3–5 μm mist removal with low pressure drop and flexible materials.

View Product

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