ISO 10497-2022 PDF

Full title and description

ISO 10497:2022 — Testing of valves — Fire type‑testing requirements. This International Standard specifies the fire type‑test method and performance criteria used to verify the pressure‑containing capability and operability of soft‑ and metal‑seated isolation valves when exposed to a standardized fire scenario.

Abstract

ISO 10497:2022 defines the fire test procedure, instrumentation and acceptance criteria for valves subjected to fire exposure. It covers measurement and assessment of through‑seat leakage, external leakage, cavity overpressure relief for double‑seated valves, and post‑fire operability. The standard also sets rules for extending a fire test qualification to untested sizes, pressure ratings and materials of the same basic design type. It excludes fire testing of valve actuators other than manually operated gearboxes or similar mechanisms.

General information

• Status: Published (current international standard).
• Publication date: October 2022 (publication implemented October 2022).
• Publisher: International Organization for Standardization (ISO), technical committee ISO/TC 153 (Valves).
• ICS / categories: 23.060.01 (Valves in general).
• Edition / version: Edition 4 (2022).
• Number of pages: ISO published version: 18 pages (national/adopted EN/BS variants may show different page counts due to front/back matter).

Scope

Applies to fire type‑testing of soft‑ and metal‑seated isolation valves with one or more obturators to confirm pressure‑containing capability during and after exposure to a prescribed fire. The standard excludes fire testing of actuators except manually operated gearboxes or similar mechanisms that are part of the valve assembly. It sets the tests and acceptance criteria for through‑seat and external leakage, cavity overpressure relief for double‑seated valves, and functional operability checks; and describes how a successful test may be taken to qualify other sizes, pressure classes or materials of the same design family.

Key topics and requirements

• Fire test method and apparatus: fuel, burner arrangement, instrumentation and burn/cool‑down sequence.
• Measured performance criteria: through‑seat leakage (during and after fire), external leakage (during burn and cool‑down), cavity overpressure monitoring/relief for double‑seated valves, and operability checks.
• Test pressures and procedures: defined test pressures for different valve types and specified sequences for burn, cool‑down and low‑pressure leakage verification.
• Qualification rules: extension of a tested design’s results to other sizes, pressure ratings and materials of the same basic design type by defined qualification rules.
• Mandatory cavity relief provisions for double‑seated valves unless purchaser agreement allows omission (explicit monitoring and relief requirements).

Typical use and users

Used by valve manufacturers, third‑party testing laboratories, certification bodies, procurement/specification engineers, plant safety and maintenance teams, and owners/operators in oil & gas, petrochemical, power generation, marine and other industries where fire exposure is a credible hazard. It is referenced in test reports and purchase specifications to demonstrate a valve’s fire integrity and residual operability.

Related standards

Commonly referenced alongside other valve and fire‑safety documents such as API 607 (fire test for valves; often treated as the industry equivalent in some sectors), regional/adopted standards (e.g., EN/BS adoptions of ISO 10497), and general valve testing standards (hydrostatic and leakage tests such as ISO 5208 or EN variants used for pressure/leakage classification). Industry practice may call for dual compliance (ISO 10497 and API 607) where global acceptance is required.

Keywords

fire testing, valve fire type‑test, ISO 10497:2022, fire safe valves, through‑seat leakage, external leakage, cavity relief, operability, valve qualification, soft‑seated, metal‑seated, valve testing.

FAQ

Q: What is this standard?

A: ISO 10497:2022 is the International Standard that specifies fire type‑testing requirements and a fire test method to verify that isolation valves can contain pressure and perform expected functions during and after exposure to a standardized fire.

Q: What does it cover?

A: It covers test setup, burn and cool‑down procedures, instrumentation, acceptance criteria for through‑seat and external leakage, cavity overpressure relief for double‑seated valves, and post‑fire operability checks. It also defines rules for qualifying other sizes/pressure classes of the same valve design. The standard does not include fire testing of most powered actuators (electrical, pneumatic, hydraulic) except for manually operated gearboxes when they are integral to the valve.

Q: Who typically uses it?

A: Valve manufacturers for product qualification, independent test laboratories and notified/certification bodies for issuing test reports, procurement and specification engineers who require fire‑safe valves, and plant operators/owners in sectors where fire hazards are part of the risk profile (petrochemical, oil & gas, power, marine, etc.).

Q: Is it current or superseded?

A: Current — ISO 10497:2022 (Edition 4) was published in October 2022 and supersedes previous editions (2010, 2004, 1992). Use the 2022 edition for the latest internationally agreed requirements.

Q: Is it part of a series?

A: ISO 10497 is part of the broader family of valve testing and fire‑safety standards and is often used alongside API fire‑test standards (API 607) and regional/adopted EN/BS versions. It is a stand‑alone document for fire type‑testing rather than a numbered multipart series, but it is operationally referenced with other valve design and pressure‑testing standards.

Q: What are the key keywords?

A: fire test, fire type‑testing, valve, fire safe, ISO 10497:2022, through‑seat leakage, external leakage, cavity relief, operability, soft‑seated valve, metal‑seated valve.