offshore valves
5 in-depth engineering guides on offshore valves — specification, selection, testing and procurement.
Everything on offshore valves
Vajra's engineering team has published 5 technical guides covering offshore valves for industrial valve selection, specification, testing and procurement. Browse the full set below.
Valves for Seawater and Offshore Service: Material Selection Guide
Seawater is one of the most corrosive natural fluids encountered in industry - high chloride concentration, dissolved oxygen, biofouling, and galvanic potential create an extremely aggressive environment that disqualifies carbon steel and standard 316 stainless from use without coating. This guide covers correct material selection, valve types, and standards for seawater and offshore service.
Duplex and Super Duplex Stainless Steel Valves: 2205 vs 2507 Guide
Duplex 2205 and super duplex 2507 stainless steels offer the corrosion resistance of austenitic stainless with twice the yield strength - making them the preferred valve materials for seawater, offshore, and chloride-rich chemical service. This guide covers the 2205 vs 2507 selection criteria, PREN pitting resistance numbers, chloride SCC behaviour, NORSOK M-630 qualification, and Charpy impact test requirements.
Subsea and Offshore Valve Design: Requirements, Standards, and Selection
Subsea valves operate in one of the most demanding environments in engineering - extreme hydrostatic pressure, total inaccessibility for maintenance, corrosive seawater, and the consequences of any failure measured in catastrophic oil spills or production losses of millions of dollars per day. This guide covers the design standards, testing requirements, and material specifications that define subsea and offshore topsides valve engineering.
Duplex Stainless Steel Valves: Grade 2205 and 2507 for Corrosive and Offshore Service
Duplex and super-duplex stainless steels offer superior corrosion resistance to chloride pitting and stress corrosion cracking (SCC) compared to standard 316L SS - at roughly half the nickel content. This guide covers grades 2205 and 2507, PREN calculations, NACE compliance, and selection for offshore, subsea, and corrosive chemical applications.
Ball Valves in Oil and Gas: Applications, Standards and Selection Guide
Ball valves are the most widely specified valve type in oil and gas applications - from onshore pipelines to offshore platforms and LNG terminals. This guide covers the specific requirements, standards, materials, and selection criteria for ball valves across all oil and gas service environments.
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