valve inspection
5 in-depth engineering guides on valve inspection — specification, selection, testing and procurement.
Everything on valve inspection
Vajra's engineering team has published 5 technical guides covering valve inspection for industrial valve selection, specification, testing and procurement. Browse the full set below.
Valve Testing and Inspection: API 598, ISO 5208, Hydrostatic & Seat Tests
Every industrial valve must pass mandatory pressure tests before despatch - but the test pressures, durations, and acceptance criteria differ significantly between API 598 and ISO 5208. This guide explains hydrostatic shell tests, seat leakage tests, backseat tests, TPI (third-party inspection) requirements, and the full documentation package expected for critical service valves.
BS 6755 Valve Testing Standard: Explained for Engineers and Procurement Teams
BS 6755 is the British Standard specifying production testing requirements for industrial valves - covering shell pressure tests and seat leakage tests. This guide explains the two parts of BS 6755, test pressures, test durations, leakage acceptance criteria, and how the standard compares to the widely used API 598.
Industrial Valve Procurement Guide for EPC Contractors and Plant Engineers
Valve procurement is one of the most complex and risk-laden activities in a process plant EPC project - covering hundreds of line items, long-lead equipment, third-party inspection, and stringent documentation requirements. This guide covers the complete procurement cycle from Material Requisition to Delivery and Handover.
Valve Testing and Inspection Standards: API 598, ISO 5208, and BS 6755
Every industrial valve must be pressure-tested before shipment to verify structural integrity and seat leakage. API 598, ISO 5208, and BS 6755 define the test pressures, durations, and acceptance criteria that differentiate a certified valve from a questionable one.
Industrial Valve Maintenance Guide: Inspection, Troubleshooting and Best Practices
Unplanned valve failures cause costly production shutdowns, safety incidents, and environmental releases. This guide covers routine inspection protocols, common failure modes for all major valve types, and predictive maintenance strategies to maximise valve service life.
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