Name: ISO 17579:2025 — Ships and marine technology — Design and testing requirements of pneumatic quick-closing valves
SKU: ISO 17579:2025
Price: 25 EUR
Availability: InStock

Overview

ISO 17579:2025 - Ships and marine technology - Design and testing requirements of pneumatic quick-closing valves (PQCV) specifies design and test requirements for pneumatic-driven quick-closing valves used in ship fuel and lubricating oil systems to stop flow in the event of a leak. Published in 2025, this first-edition International Standard is primarily aimed at producers and manufacturers of marine PQCVs but is also essential guidance for shipyards, classification societies, maintenance teams and ship operators.

Scope highlights

Applies to nominal diameters (DN): 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 (NPS 1/2 to 12).
Focuses on valves used to prevent escape of flammable/combustible liquids (fuel and lubricating oil) onboard ships.

Key topics and technical requirements

ISO 17579:2025 organizes requirements across design, materials, testing and marking. Key technical topics include:

Structure and design
- Requirements for body, bonnet, disc, stem, seat, spring and pneumatic components.
- Material selection, manufacturing and surface treatment expectations.
- Stem sealing and connection design, plus hand wheel and pneumatic actuator considerations.
Pressure and temperature
- Design considerations to ensure reliable closure under specified system pressures and operational temperatures.
Testing and inspection
- Material testing and non‑destructive testing (NDT) such as dye penetrant testing (PT).
- Dimension checks, visual inspection and operating/function tests.
- Pressure testing procedures (ambient temperature tests) and fire‑resistance testing.
- Requirements for test records and submission of inspection results.
Marking and documentation
- Mandatory marking elements and traceability for installed valves.

Applications and users

ISO 17579:2025 is practical for:

Manufacturers and suppliers designing and producing PQCVs for marine use.
Shipyards and naval architects specifying compliant valves for new builds and retrofits.
Ship operators, chief engineers and maintenance teams conducting onboard inspections, routine testing and maintenance.
Classification societies and port state control performing conformity and safety checks (PQCV performance is commonly checked during port state inspections and under SOLAS requirements).

Using ISO 17579 helps ensure PQCVs perform reliably in emergencies, reduce fire risk, and avoid vessel detentions due to non‑compliant valve function.

Related standards

ISO 24225 (pneumatic quick-closing control devices)
ISO 4987 (liquid penetrant testing)
ISO 5208 (pressure testing of metallic valves)
ISO 5752, ISO 7005-1/3, ISO 17602, ASME B16.34 (valve/flange dimensions and standards)

Keywords: ISO 17579:2025, pneumatic quick-closing valve, PQCV, ships, marine technology, valve design, valve testing, fuel systems, lubricating oil systems, maritime safety.

ISO 17579:2025 PDF

Похожие стандарты

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 24225:2022

Ships and marine technology — Pneumatic quick-closing control devices

ISO 4987:1992

Steel castings — Penetrant inspection

ISO 5208:2008

Industrial valves — Pressure testing of metallic valves

ISO 5752:1979

Title missing - Legacy paper document

ISO 17602:2014

Ships and marine technology — Metal valves for use in flanged pipe — Face-to-face and centre-to-face dimensio…