ISO 17579-2025 PDF

Full title and description

St ISO 17579-2025 — Ships and marine technology — Design and testing requirements of pneumatic quick-closing valves. This international standard defines design, performance and test requirements for pneumatic-driven quick-closing valves used primarily in shipboard fuel and lubricating-oil systems to stop fluid flow in the event of a leak; it is intended principally for producers and manufacturers of such valves.

Abstract

This document specifies requirements for the design and tests of pneumatic driven quick-closing valves used in ship fuel and lubricating oil systems to stop the fluid flow in the event of a leak. It applies to valves with nominal diameters DN 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250 and 300 (NPS 1/2 to 12). The standard notes that onboard inspection and maintenance after delivery and installation are important to ensure continued performance.

General information

• Status: Published.
• Publication date: 21 March 2025 (published March 2025).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 47.020.30 (Ships and marine technology / valves and piping systems).
• Edition / version: Edition 1, 2025-03.
• Number of pages: 12.

Basic bibliographic and status details above taken from the ISO record for ISO 17579:2025 (ISO/TC 8/SC 3).

Scope

Specifies design and testing requirements for pneumatic quick-closing valves intended for shipboard fuel and lubricating-oil systems to provide rapid isolation in the event of leakage. The standard covers defined nominal diameters (DN 15–300) and their corresponding nominal pipe sizes (NPS 1/2–12) and addresses aspects necessary to ensure safe, reliable closure and acceptable leakage and operational characteristics in marine service. It is mainly directed at producers; however, it also informs purchasers, shipbuilders and surveyors about expected performance and testing.

Key topics and requirements

• Design requirements for pneumatic quick-closing valve bodies, closures and actuators to suit marine fuel and lube oil applications.
• Applicable nominal diameters (DN 15–300) and corresponding NPS sizes and dimensional/pressure considerations.
• Type and production test procedures to verify closure performance, leakage rates and mechanical integrity.
• Operational and safety requirements for pneumatic actuation, release mechanisms and failure modes.
• Marking, documentation and information to be supplied by the manufacturer (identification, size, pressure rating, testing evidence).
• Guidance recommending onboard inspection and maintenance after delivery and installation to maintain performance in service.

Typical use and users

Primary users are valve manufacturers (producers) designing and testing pneumatic quick-closing valves for marine use. Secondary users include shipbuilders, shipowners/operators, classification societies, marine surveyors, procurement engineers and maintenance teams who reference the standard for purchase specifications, acceptance testing and onboard maintenance planning.

Related standards

Typical related documents and standards referenced or used alongside ISO 17579 include testing and valve-performance standards and national standards for quick-closing valves — for example ISO 10497 (fire type-testing of valves), EN 12266 (industrial valves — testing procedures and acceptance criteria), and national quick-closing valve standards such as JIS F7399 and GB/T 5744 (older Chinese valve standards). In practice manufacturers and purchasers also consider flange and end-connection standards (for example ISO 7005 series) and applicable IMO/SOLAS or classification society rules where relevant.

Keywords

pneumatic quick-closing valve; quick-closing valve; ship fuel system; lubricating-oil system; valve testing; DN15–DN300; NPS 1/2–12; ISO/TC 8/SC 3; marine valves.

FAQ

Q: What is this standard?

A: ISO 17579:2025 (St ISO 17579-2025) is an international standard that specifies design and test requirements for pneumatic quick-closing valves used in ship fuel and lubricating-oil systems, published by ISO in March 2025.

Q: What does it cover?

A: It covers design criteria, applicable nominal diameters (DN 15–300), test procedures to verify closure and leakage performance, manufacturer marking and documentation, and recommendations for inspection and maintenance after installation.

Q: Who typically uses it?

A: Valve producers and manufacturers are the primary audience; shipbuilders, ship operators, classification societies, purchasers and marine surveyors use it for specification, procurement, acceptance testing and maintenance planning.

Q: Is it current or superseded?

A: It is current: ISO 17579:2025 was published as a new International Standard (Edition 1) in March 2025. Check the ISO catalogue or national body for any later confirmations or revisions.

Q: Is it part of a series?

A: It sits within the body of valve- and marine-technology standards maintained by ISO technical committees (ISO/TC 8/SC 3) and is commonly used together with valve testing and performance standards such as ISO 10497 and EN 12266 and with national quick-closing valve standards where applicable.

Q: What are the key keywords?

A: Pneumatic quick-closing valve; quick-closing; ship fuel; lubricating oil; valve testing; DN sizes; marine valves; ISO 17579.