GOST R 53279-2009 PDF

Full title and description

GOST R 53279-2009 — Fire equipment. Fire connecting heads. General technical requirements. Methods of testing. Establishes technical requirements, dimensional and material specifications, marking and packaging rules, and test methods for various types of fire connecting heads (couplings, suction heads, blind caps and related fittings) used in firefighting systems and fire apparatus.

Abstract

This national standard specifies general technical requirements and test methods for fire connecting heads (пожарные головки соединительные). It covers constructive types and sizes, permitted materials, hydraulic and vacuum tests, cyclic durability, climatic designations, marking, packaging and acceptance/periodic test procedures used to verify performance and safety of fire hose couplings and related heads.

General information

• Status: In force (national GOST R standard published 2009).
• Publication date: 2009.
• Publisher: Federal Agency on Technical Regulating and Metrology (Rosstandart) / Стандартинформ (Moscow).
• ICS / categories: 13.220 (Fire protection and fire fighting / Firefighting equipment and fittings).
• Edition / version: Original national release — 2009 (ГОСТ Р 53279-2009).
• Number of pages: Approximately 23 pages (standard text + annexes/tables).

Scope

Applies to fire connecting heads intended for use in firefighting equipment and systems — including hose couplings (муфтовые), claw-type/cam-lock heads (цапковые), suction heads, blind caps and other interconnection heads. The standard sets dimensional series and constructive requirements for nominal diameters and working pressures, environmental (climatic) performance classes, material and corrosion-protection recommendations, marking and packaging, and specifies methods for type, acceptance and periodic testing (hydraulic pressure tests, vacuum tests for suction heads, cyclic coupling/decoupling durability, leak/airtightness checks, dimensional verification and functional checks).

Key topics and requirements

• Classification of heads by constructive type (e.g., muftovyye — threaded/coupling, tsapkovyye — claw/cam, suction heads, blind caps) and by nominal diameter (DN series) and rated working pressure.
• Dimensional drawings and tolerances for a range of DN (typical DN 25–150) with reference tables for mating dimensions and gauges.
• Permitted materials and basic material requirements (aluminum alloys, brass/bronze, or other materials resistant to operational conditions) and references to material GOSTs.
• Hydraulic pressure testing procedures and test pressures (test and maximum values), duration and acceptance criteria for leaks and structural integrity.
• Vacuum testing method and acceptance criteria for suction heads (allowable vacuum drop over defined interval).
• Cyclic durability requirements (mechanical coupling/uncoupling endurance — specified number of cycles) and torque/moment limits for coupling/unlocking where applicable.
• Surface quality, defect limits for castings, chamfering of sharp edges and corrosion-protection provisions for heads used in aggressive or marine environments.
• Marking content (manufacturer, type, year, DN, working pressure, climatic designation where applicable) and durable placement of markings; packaging requirements to preserve product integrity during transport and storage.
• Reference to related normative documents and climatic designations per national standards (e.g., ГОСТ 15150 for climatic versions).

Typical use and users

Used by manufacturers of firefighting fittings and fire hose assemblies, suppliers of fire protection equipment, design engineers for fire apparatus and building fire systems, procurement and acceptance inspectors, testing and certification laboratories, and fire departments/end users who must ensure interoperability and safe operation of hose connections on fire pumps, hydrants, vehicles and portable hose lines.

Related standards

References and cross-references typically include other national standards for firefighting equipment and materials, for example standards on climatic designations, rubber sealing rings, dimensional tolerances and material specifications (examples: ГОСТ 15150 — climatic/environmental categories; material and casting standards; standards for rubber seals and hoses; earlier superseded national standards for couplings such as ГОСТ 28352-89). The standard also works together with other GOST/GOST R documents governing fire nozzles, hoses, hydrants and fire appliance fittings.

Keywords

GOST R 53279-2009; fire connecting head; fire coupling; hose coupling; suction head; blind cap; firefighting fittings; hydraulic test; vacuum test; cam-lock; mufta; DN; working pressure; marking; climatic designation.

FAQ

Q: What is this standard?

A: GOST R 53279-2009 is a Russian national standard that sets general technical requirements and test methods for fire connecting heads (hose couplings, suction heads, blind caps and similar firefighting connection fittings).

Q: What does it cover?

A: It covers types and dimensional series, permitted materials, surface quality, strength and sealing requirements, hydraulic and vacuum test methods, cyclic durability tests, marking, packaging and acceptance/periodic inspection procedures for fire connecting heads used on hoses, hydrants, pumps and fire appliances.

Q: Who typically uses it?

A: Manufacturers, testing and certification laboratories, procurement specialists, fire brigade equipment officers, fire-system designers and suppliers of firefighting components use the standard to ensure interchangeability, safety and compliance of hose couplings and related heads.

Q: Is it current or superseded?

A: The document was published in 2009 as ГОСТ Р 53279-2009. It replaced earlier national specifications for connecting heads (for example older ГОСТs). Users should check the national standards registry or the issuing authority for any later amendments or newer revisions if absolute currency is required.

Q: Is it part of a series?

A: Yes — it is part of the body of national standards covering firefighting equipment and fittings. It is commonly referenced alongside standards for hoses, nozzles, valves and other fire-technical equipment as well as general normative documents on materials, climatic designations and test methods.

Q: What are the key keywords?

A: Fire connecting head, hose coupling, suction head, blind cap, GOST R 53279-2009, firefighting fittings, hydraulic test, cyclic durability, DN (nominal diameter), working pressure.