Replacement Guide

How to Replace Demister Pad

Step-by-Step Guide · Absorption Tower Maintenance · OEM-Spec Mesh Demister Pads

Tools Needed

Tools & Materials Required

Prepare all supplies before disassembly.

Measuring TapeVerify vessel diameter and pad size.

OEM Wire Mesh PadMatch thickness, density and material.

Clamps / Tie WireSecure the pad against gas uplift.

Manway GasketReplace the vessel-opening seal.

Pressure WasherClean the support ring and grid.

Inspection LightFind wall and section gaps.

Step-by-Step

How to Replace Demister Pad

Follow each step carefully and observe site safety procedures.

Isolate, Depressurize & Purge

Close process valves, stop pumps, vent to atmosphere, purge hazardous mist and lock all isolation points.

Verify zero pressure and safe atmosphere before entry.

Open Manway & Release Hold-Downs

Remove the cover, then release clamps, tie wires and upper beams compressing the pad.

Store clean hardware in a sealed container.

Remove Pad & Inspect Support

Lift evenly, reject corroded or permanently fouled mesh, and clean the grid and seating ring.

Do not reuse mesh that is thin, torn or severely sagged.

Install New Pad Without Gaps

Lay the pad flat, fit edges to the vessel wall and fill section joints with matching mesh strips.

Never fold or crease the mesh.

Secure, Seal & Test

Reinstall hold-downs without crushing the pad, fit a new manway gasket and test at low gas flow.

Monitor carryover and pressure drop for two full cycles.

Safety Notes

Safety Requirements

These measures are mandatory throughout the replacement process.

Confined-Space Controls

Use permits, isolation, ventilation and a safety harness.

Chemical & Eye PPE

Wear respirator, gloves and eye protection during entry and washing.

Cool & Store Correctly

Cool hot surfaces and keep spare pads clean and dry.

Avoid These

Common Mistakes to Avoid

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

×Wrong Pad Orientation

Dual-density mesh installed upside down causes carryover.

×Wall Gaps or Over-Compression

Creates bypass or excessive pressure drop.

×Wrong Size, Density or Support

Shortens life and allows sagging or poor capture.

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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