lined valves
3 in-depth engineering guides on lined valves — specification, selection, testing and procurement.
Everything on lined valves
Vajra's engineering team has published 3 technical guides covering lined valves for industrial valve selection, specification, testing and procurement. Browse the full set below.
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.
How to Specify Industrial Valves for Chemical Service: A Complete Guide
Chemical plants handle some of the most aggressive fluids in any industry - strong acids, chlorinated solvents, caustic solutions, oxidising agents, and toxic gases. Specifying the wrong valve body material, seat, or seal material can lead to catastrophic corrosion, product contamination, or unsafe failure. This guide covers every variable in chemical valve specification.
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