ISO 5208
International standard for industrial valves - pressure testing of metallic valves. Defines test procedures for shell test, seat leakage test, backseat test, and extended closure test. Rate A (zero leakage) through Rate F (max allowable rates). Commonly referenced alongside or instead of API 598.
Applicable Standards
Valve Inspection and Testing
API 598 is the universal valve testing and inspection standard, defining acceptable leakage rates (leak classes) for hydrostatic shell tests, seat leakage tests, and backseat tests.
Industrial Valves - Pressure Testing of Metallic Valves
ISO 5208 is the international standard for pressure testing of metallic valves.
Frequently Asked Questions
What does ISO 5208 cover?
International standard for industrial valves - pressure testing of metallic valves. Defines test procedures for shell test, seat leakage test, backseat test, and extended closure test. Rate A (zero leakage) through Rate F (max allowable rates). Commonly referenced alongside or instead of API 598.
Which valves require compliance with ISO 5208?
ISO 5208 compliance is typically required for valves used in oil & gas, petrochemical, and industrial process applications where the standard applies. Procurement specifications for EPC projects and operating companies often mandate specific standards as part of the Material Requisition (MR). Vajra Industrial Solutions supplies valves with full certification documentation including ISO 5208-compliant test certificates.
Does Vajra Industrial Solutions supply ISO 5208-compliant valves?
Yes. Vajra Industrial Solutions supplies industrial valves with third-party inspection and full documentation packages including material test certificates (MTC/EN 10204 3.1), hydrostatic test reports to the applicable standard, and dimensional inspection records. Contact sales@vajravyuh.com with your datasheet and piping class for a detailed technical offer.
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Our valve engineers can help specify the right valve for your application. Full project documentation available: MTCs, test reports, dimensional inspection, and third-party inspection coordination.