SIST EN ISO 17871:2020 PDF

Overview

EN ISO 17871:2020 (ISO 17871:2020) specifies requirements for quick-release cylinder valves used as closures on refillable, transportable gas cylinders, pressure drums and tubes. It covers valves for non-toxic, non-oxidizing, non-flammable and non-corrosive compressed or liquefied gases and for extinguishing agents charged with compressed gas - primarily used in the fire‑fighting industry but also in avalanche airbags, life‑raft inflation and similar applications. The standard focuses on valve design, type testing, marking, manufacturing tests and examinations.

Key topics and technical requirements

• Design and function: Requirements for valve operating mechanisms (pistons, flaps, piercing or differential pressure devices) and valve operating devices for quick release of cylinder contents.
• Valve types: Defines one‑time (type A) and multiple‑operation valves (types B–E) with differing cycle limits and maintenance needs.
• Type testing and safety: Tests for mechanical strength, resistance to impact, endurance, leak tightness, and provisions for valve burst test pressure (new to this edition).
• Manufacturing tests and examinations: Production-level inspections and tests to verify conformity with the specification (see Annex A).
• Marking and documentation: Mandatory marking and documentation to support traceability, safe use and regulatory compliance.
• Scope boundaries: Does not apply to quick‑release valves for cryogenic equipment or LPG, nor to valves used as the main closure of portable fire extinguishers (except auxiliary refillable propellant cylinders transported separately).
• Regulatory alignment: Written to be referenced in the UN Model Regulations; harmonizes with ISO 10297 and ISO 14246.

Practical applications and users

Who should use EN ISO 17871:2020:

• Valve and cylinder manufacturers - design, test, certify and mark quick‑release valves to meet transport and safety requirements.
• Test laboratories and certification bodies - perform type testing, endurance and burst tests and confirm compliance.
• Fire‑fighting and safety equipment OEMs - select compliant valves for breathing apparatus, extinguishing systems, airbags and inflation devices.
• Regulators, transport authorities and procurement teams - reference the standard in safety regulations, specifications and tender documents.
• Maintenance and inspection providers - understand serviceability and reconditioning requirements for valve types.

Related standards

• ISO 10297 (cylinder valves - specification and type testing)
• ISO 14246 (cylinder valve manufacturing tests and examinations)
• ISO 22435 / ISO 22434 (related valve/regulator standards)

EN ISO 17871:2020 is essential for anyone involved with quick‑release gas cylinder valves where safety, transport compliance and verified type testing are required. Keywords: EN ISO 17871:2020, quick-release cylinder valves, gas cylinders, type testing, fire-fighting valves, valve burst test.