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3 in-depth engineering guides on Safety — specification, selection, testing and procurement.

Everything on Safety

Vajra's engineering team has published 3 technical guides covering Safety 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.

2026-07-0911

Rupture Disc vs Pressure Relief Valve: Overpressure Protection Guide

Rupture discs and pressure relief valves both protect equipment from overpressure, but they work in fundamentally different ways. This guide compares the two devices, explains combination installations, and gives selection rules based on API 520 and API 521.

2026-07-099

Fire-Safe Valve Design - API 607 & API 6FA: What It Means and When It's Required

Fire-safe valves are specifically designed and tested to maintain an acceptable shutoff performance after exposure to a fire and subsequent fire suppression. This guide covers API 607 versus API 6FA testing, fire-safe design features, and when fire-safe certification is mandatory for industrial valves.

2026-05-208

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Reviewed by Engineering Editorial Team, Vajra Industrial SolutionsDiscipline: Industrial Valve Engineering ContentLast reviewed: 20 June 2026

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