GOST 9544-2015 PDF

Full title and description

GOST 9544-2015 — "Pipeline valves. Leakage rates of valves" (Russian: "Арматура трубопроводная. Нормы герметичности затворов"). The standard establishes leakage (tightness) norms and classes for pipeline valves and shutter-type closures used across a wide range of diameters and pressures.

Abstract

This national technical standard sets classes and quantitative limits of permissible leakage for pipeline valves (gate, globe, ball/plug, butterfly and other shutter-type closures), defines test conditions and test media, and gives guidance for acceptance and in-service tightness checks. It covers valves of nominal diameters from DN 3 to DN 2400 and nominal pressures up to PN 420, and is intended to be used for type tests and operational leak checks.

General information

• Status: Active / introduced (first issued for use).
• Publication date: Approved in 2015 (approval entries in 2015); published/adopted on 1 April 2016 in many bibliographic records.
• Publisher: Adopted/approved through Russian metrology and standards authorities (Federal Agency on Technical Regulating and Metrology — Rosstandart / Intergovernmental Council on Standardization, Metrology and Certification).
• ICS / categories: 23.060 (Valves) — related: 23.040 (Pipeline components and fittings).
• Edition / version: GOST 9544-2015 (original issue under this designation; includes normative annexes and possible subsequent amendments noted in some catalogs).
• Number of pages: ~55 pages (bibliographic listings report 55 pages; some vendor listings report 56 pages).

Scope

Applies to pipeline valves and shutter-type closures across industrial applications. Defines leakage classes and the numerical leakage limits to be used in acceptance testing and during operation for valves with nominal diameters from DN 3 up to DN 2400 and nominal pressures up to PN 420. The standard covers shut‑off, check, safety, regulating, mixing/distribution and phase‑separating valves of the common construction types (gates, valves, cocks, butterfly closures), and gives test conditions, test media and example records for tolerance/changes in leakage.

Key topics and requirements

• Definition of leakage (tightness) classes for valve closures and numerical leakage limits for each class.
• Test methods and conditions for leakage checks (test media, pressures, temperatures and test durations).
• Application ranges by nominal diameter (DN) and nominal pressure (PN) and guidance for converting between metric and non‑metric pressure/size systems.
• Requirements for recording test results, permissible deviations and recommended acceptance criteria for in-service checks.
• Annexes with reference tables (examples for water and air tests, conversion guidance, recommended assignment of tightness classes, examples of recording changes in leakage and recalculation when test medium is changed).

Typical use and users

Used by valve manufacturers, testing laboratories, pipeline designers, procurement/specification engineers, quality inspectors and plant maintenance teams who need normative leakage limits and test procedures for acceptance and periodic verification of pipeline valves in oil & gas, water, chemical, power generation and other industrial systems.

Related standards

Related national and international documents typically referenced when specifying valve tightness and test methods include other GOST documents on valve dimensions and testing, and international standards addressing valve pressure‑testing and inspection (for example, ISO and API documents covering valve pressure testing and inspection practices). Users often apply GOST 9544-2015 together with standards that specify valve construction, flanges and pressure‑rating systems.

Keywords

valves; pipeline valves; leakage; tightness class; tightness standards; valve leakage tests; DN; PN; acceptance testing; in‑service testing; shut‑off valve; gate valve; globe valve; ball valve; butterfly valve.

FAQ

Q: What is this standard?

A: GOST 9544-2015 is the Russian national standard that establishes leakage (tightness) norms and classes for pipeline valves and shutter‑type closures and sets related test requirements and acceptance criteria.

Q: What does it cover?

A: It covers permissible leakage limits by class, test media and test conditions, ranges of application by nominal diameter (DN 3–DN 2400) and nominal pressure (up to PN 420), and provides annex guidance for common test scenarios and conversions between measurement systems.

Q: Who typically uses it?

A: Valve manufacturers, test laboratories, plant maintenance and inspection personnel, procurement and pipeline system designers—anyone specifying, testing or certifying valve tightness for industrial piping systems.

Q: Is it current or superseded?

A: Bibliographic listings and national catalogs list GOST 9544-2015 as an active (introduced) standard since its 2015 approval and subsequent publication entries (catalogued in 2016); users should check the national standards registry or publisher for the very latest amendment status before relying on it for regulatory compliance.

Q: Is it part of a series?

A: It is part of the body of GOST documents covering pipeline components and valves and is commonly used alongside GOSTs that specify valve design, dimensions, testing and related pipeline fittings. It includes multiple annexes with normative/recommended material.

Q: What are the key keywords?

A: Leakage, tightness class, valve, pipeline valve, DN, PN, acceptance testing, in‑service leak check, gate/globe/ball/butterfly valves.