corrosion
3 in-depth engineering guides on corrosion — specification, selection, testing and procurement.
Everything on corrosion
Vajra's engineering team has published 3 technical guides covering corrosion for industrial valve selection, specification, testing and procurement. Browse the full set below.
HF Alkylation Unit Valve Selection: Monel, Safety, and Handling Guide
Hydrofluoric acid (HF) alkylation units produce high-octane alkylate using anhydrous HF as catalyst - one of the most hazardous and corrosive services in any refinery. Valve selection is dominated by Monel construction, tight isolation, and rigorous safety design. This guide explains the requirements.
Valve Selection for Sulphuric Acid Service: Materials, Lining and Design Guide
Sulphuric acid is one of the most deceptive fluids to specify valves for - its corrosivity flips dramatically with concentration, temperature, and velocity. This guide maps concentration-temperature zones to the right alloy or lining and the correct valve design.
Valve Selection for Chemical Plants: Materials, Standards & Fugitive Emissions
Chemical plants handle acids, alkalis, solvents, and highly toxic fluids - valve material failures cause catastrophic releases. This guide covers the material selection matrix for corrosive chemical service, NACE MR0103 requirements for refinery service, fugitive emissions ISO 15848 compliance, and the role of polymer-lined valves.
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