IEC 63458-3:2026 pdf download,High pressure water jet machines – Safety – Part 3: High pressure spraying devices.
IEC 63458-3:2026 is the third part of the IEC 63458 series, focusing on safety requirements for high‑pressure spraying devices used in high‑pressure water jet machines. It addresses risks such as accidental ejection, high‑pressure leakage, mechanical failure, and operator injury, which are common in industrial cleaning, surface preparation, and cutting applications.
The standard applies to all types of spraying devices, including hand‑held guns, fixed nozzles, and automated spray heads, operating at pressures often exceeding 250 bar. It specifies mandatory design and construction criteria: structural strength, pressure resistance, ergonomic design, and protection against unintended activation. Special attention is given to stability, vibration limits, and control device marking for hand‑held units, ensuring safe handling and clear operation guidance.
Key verification methods include hydrostatic pressure tests, mechanical strength checks, and functional safety tests to confirm compliance with minimum safety margins (e.g., burst pressure ratings). It also outlines requirements for user instructions, maintenance schedules, and replacement intervals to prevent degradation in service.
As a vital complement to Parts 1 (general safety) and 2 (hoses and connectors), this standard provides manufacturers, designers, and operators with a unified global framework to ensure the safe and reliable operation of high‑pressure spraying devices, reducing hazards in high‑pressure water jetting systems worldwide.
