ISO 15364-2021 PDF

Full title and description

Ships and marine technology — Pressure‑vacuum valves for cargo tanks and devices to prevent the passage of flame into cargo tanks. This International Standard specifies minimum performance, testing, design, in‑service performance, operational testing and maintenance requirements for pressure‑vacuum valves and for devices intended to prevent flame passage on cargo‑tank venting systems.

Abstract

ISO 15364:2021 applies to pressure‑vacuum valves and to devices to prevent the passage of flame that protect cargo tanks subject to explosive gas/vapour or to gas/vapour pressure or vacuum beyond the design parameters of the system/tank. It specifies minimum performance and testing requirements, design and in‑service performance criteria, and operational testing and maintenance requirements. The standard incorporates the flame test procedures of ISO 16852 and references IMO/SOLAS guidance for maritime flame‑prevention devices.

General information

• Status: Published
• Publication date: February 2021 (edition 4 — published 2021‑02)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 47.020.30 (Ships and marine technology)
• Edition / version: Edition 4 (2021)
• Number of pages: 33

Core bibliographic and lifecycle details as recorded by ISO (edition, publication month, ICS and page count). The 2021 edition replaces the 2016 edition.

Scope

Applies to pressure‑vacuum relief valves and to devices that prevent passage of flame when fitted to cargo‑tank venting systems on ships and related marine installations. The standard covers equipment that may be exposed to explosive gas/vapour mixtures and to overpressure or vacuum events beyond tank/system design limits. It defines performance and test methods, acceptance/operational criteria, maintenance and information to be supplied to purchasers. ISO 16852 flame test procedures are incorporated; additional IMO/SOLAS requirements and MSC circular guidance are referenced for maritime applications.

Key topics and requirements

• Minimum performance criteria for pressure‑vacuum valves (setpoints, leakage limits, flow characteristics).
• Design and material selection guidance for valve housings and internals to withstand marine environments.
• Operational testing procedures, acceptance tests and routine maintenance requirements.
• Requirements and test methods for devices to prevent the passage of flame (flame arresters, flame screens, high‑velocity vents), with ISO 16852 test procedures incorporated.
• Information and marking to be supplied to buyers to allow assessment of suitability for specific installations.
• Notes and cross‑references to IMO SOLAS provisions and MSC circulars for maritime regulatory compliance.

Typical use and users

Used by valve and flame‑prevention device manufacturers, shipbuilders, naval architects, classification societies, ship operators, marine safety engineers, procurement teams and regulatory bodies to design, test, specify, approve and maintain venting and flame‑prevention equipment for tankers and other ships carrying flammable cargoes.

Related standards

Key related documents include ISO 16852 (flame arresters — performance requirements and test methods) and IMO/SOLAS requirements and MSC circulars (notably the Revised Standards for the Design, Testing and Locating of Devices to Prevent the Passage of Flame into Cargo Tanks, MSC/Circ.677 and its subsequent revisions/amendments that reference ISO 15364:2021).

Keywords

pressure‑vacuum valve, P/V valve, cargo tank venting, flame arrester, flame screen, high‑velocity vent, marine, tanker, SOLAS, MSC/Circ.677, ISO 16852, venting safety

FAQ

Q: What is this standard?

A: ISO 15364:2021 is an international standard that defines minimum requirements, tests and operational/maintenance criteria for pressure‑vacuum valves and devices to prevent the passage of flame on cargo‑tank venting systems for ships and marine installations.

Q: What does it cover?

A: It covers performance, design, testing, in‑service requirements and maintenance of pressure‑vacuum relief valves and flame‑prevention devices; it incorporates ISO 16852 flame test procedures and refers to IMO/SOLAS guidance for maritime applications.

Q: Who typically uses it?

A: Manufacturers of P/V valves and flame‑prevention devices, shipyards, classification societies, ship operators, marine engineers and regulators use this standard when specifying, testing, approving and maintaining venting equipment for cargo tanks.

Q: Is it current or superseded?

A: Current — ISO 15364:2021 (Edition 4, published February 2021) is the active edition and replaces ISO 15364:2016.

Q: Is it part of a series?

A: It is part of ISO work in the ships and marine technology field (ISO/TC 8/SC 3) and is linked to standards for flame arresters and explosion safety (for example ISO 16852 and related IMO guidance). It is cross‑referenced by maritime circulars and regulatory instruments for tankers.

Q: What are the key keywords?

A: Pressure‑vacuum valve, P/V valve, cargo tank venting, flame arrester, high‑velocity vent, flame screen, ISO 16852, SOLAS, MSC/Circ.677.