Replacement Guide

How to Replace Filter Cartridge

Step-by-Step Guide · Liquid/Gas Filtration Maintenance · OEM-Spec Cartridges

Tools Needed

Tools & Materials Required

Prepare all supplies before disassembly.

Housing WrenchOpen threaded bowls or flange end caps.

OEM Filter CartridgeMatch direction, micron rating and length.

New O-Ring / GasketPrevent fluid or gas leakage.

Drain Bucket & TowelsCatch residual process liquid.

Compatible LubricantUse lightly on seals; never in oxygen service.

Sanitizing CleanerClean food or pharmaceutical housings.

Step-by-Step

How to Replace Filter Cartridge

Follow each step carefully and observe site safety procedures.

Isolate, Depressurize & Drain

Close inlet and outlet valves, disconnect pumps, vent pressure fully and drain residual liquid or gas.

Lock valve handles against accidental flow.

Open Housing & Remove Cartridge

Loosen the bowl or flange slowly, then pull the spent cartridge straight from its support.

Open slowly in case residual pressure remains.

Clean & Sanitize Housing

Remove sediment, biofilm and scale; sanitize when required and inspect for corrosion or thread damage.

Rinse and dry all components before assembly.

Fit Seal & New Cartridge

Install a new lubricated seal and insert the cartridge without touching media, aligned to the flow direction.

Confirm micron rating, length and flow arrow.

Reassemble, Flush & Test

Tighten evenly, restore valves, flush at low flow and monitor differential pressure for 10 minutes.

A rapid pressure rise indicates poor installation or leakage.

Safety Notes

Safety Requirements

These measures are mandatory throughout the replacement process.

Zero Pressure Required

Never open a pressurized housing.

Chemical PPE

Wear compatible gloves and splash goggles.

Ventilate & Dispose Safely

Ventilate enclosures and dispose of contaminated cartridges under local rules.

Avoid These

Common Mistakes to Avoid

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

×Backward Installation

Creates bypass and poor filtration.

×Reusing Old Seals

Causes immediate startup leakage.

×Dirty Housing or Wrong Cartridge

Contaminates new media and causes bypass or early blockage.

Products You May Need

OEM-spec replacement parts for this maintenance task.

Filter Cartridge

Ceramic Fiber Hot Gas Filter Cartridge

Porous ceramic-fiber element for high-temperature flue-gas dust removal and optional integrated catalytic treatment.

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Filter Cartridge

Sintered Stainless Steel Filter Cartridge

Rigid multi-layer sintered metal cartridge for high-temperature, corrosive and cleanable industrial filtration.

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Filter Cartridge

PTFE Laminated Polyester Filter Cartridge

Surface-filtration cartridge combining a polyester felt substrate with an expanded PTFE membrane for fine dust and easy cleaning.

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Filter Cartridge

PPS High Temperature Needle Felt Filter Cartridge

PPS needle-felt depth-filtration cartridge for hot, humid and sulfur-containing corrosive flue gas.

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