A tenth of a millimeter: inside a valve plant that competes on tolerance
The cartridge is the product. Everything around it is packaging.
By Marcus Ojo, Technology Correspondent · · 6 min read
Ask a service plumber which faucet to buy and the answer is rarely about the spout. It is about whether the cartridge is documented, standardized and available in eight years.
On the plant floor, quality control is a coordinate measuring machine and a written sampling plan. The claim worth checking as a buyer is not precision. It is parts availability policy in writing.
Sources
- Plant visit
- Published product standards referenced by the manufacturer
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About the author
Technology Correspondent
Marcus reports on sensors, software and automation in the mechanical trades. He spent six years as a controls technician before moving to journalism.
