Editorial · Engineering Reference

From Drawing to Nameplate, Part 4: Examination, Inspection, Testing and Certification

Part 4 of From Drawing to Nameplate explains how examination, inspection, pressure testing, nameplate marking and certification fit together in ASME Section VIII, Division 1 original construction for filter housings.

Monochrome editorial illustration of a closed filter housing beside inspection tools, a documentation folder and a blank nameplate, representing buyer review of construction records. — AI-generated editorial illustration for The Dirty Filter; not a technical drawing, certification mark or field-test instruction.

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Editorial · Operations

The Filter Change Isn’t Finished Yet

After installing a new filter bag, verify the seal, close the housing correctly, vent and restart gradually, check for leaks and record clean differential pressure.

Monochrome editorial illustration of a technician safely checking a closed bag filter housing, gauge and maintenance log after a filter change. — Editorial illustration: deliberate restart checks after a bag filter change.

Editorial · Engineering Reference

From Drawing to Nameplate, Part 3: Fabrication and Welding Requirements

Part 3 of the ASME housing series explains how approved drawings become controlled fabrication work: material traceability, fit-up, welding qualification evidence, inspection coordination, documented repairs and final supplier records.

Monochrome editorial illustration of an isolated filter housing shell on a fabrication bench with weld preparation, drawings, inspection tools and records. — AI-generated editorial illustration of fabrication and welding coordination for a pressure-vessel filter housing; not a technical drawing or certification record.

Editorial · Operations

Put Down the Bigger Wrench

Part 3 of The Dirty Filter’s bag housing maintenance series: why harder-to-tighten closures are a maintenance signal, not an invitation to use a bigger wrench.

Monochrome editorial illustration of a technician inspecting the closure bolts, gasket and sealing surface of an isolated bag filter housing while a larger wrench sits unused nearby. — Editorial illustration: closure inspection and seal care matter more than applying more force.

Editorial · Engineering Reference

From Drawing to Nameplate, Part 2: Materials Requirements

Part 2 of the ASME filter-housing series explains how material specifications, design conditions, wetted seals, MTRs, heat traceability and substitutions should be handled before a vessel reaches the nameplate.