Overview
IEC 63458-2:2026 - High pressure water jet machines - Safety - Part 2: High pressure hoses, hose lines and connectors sets out international safety requirements for hoses, hose lines, and connectors used with high-pressure water jet machines. Developed by the International Electrotechnical Commission (IEC), this standard specifically focuses on minimizing the significant hazards associated with the assembly, operation, and maintenance of these components when used as intended and under reasonably foreseeable misuse. The document applies to products within the scope of IEC 63458-1, outlining key criteria for mechanical performance, compatibility, and operational safety. Hazards from scalding due to hot liquids or chemical burns are excluded from this standard.
Key Topics
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Hazard Identification and Risk Assessment
The standard comprehensively details the main hazards, including:
- Bursting or leaking of hoses
- Failure of connectors
- Operator errors (e.g., using incompatible substances/components)
- Sudden hose length changes due to pressure fluctuation
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Safety Requirements
To mitigate risks, IEC 63458-2:2026 specifies:
- Compatibility and correct assembly of hoses and connectors
- Mechanical integrity under specified burst and working pressures
- Operating temperature suitability (from −10°C to +70°C)
- Requirements for tensile strength and containment of unintended loosening of connectors
- Mandatory use of connector safety devices under defined conditions
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Testing and Verification
Multiple tests are required to verify compliance, including:
- Leakage, burst pressure, cold bend, impulse, and tensile strength tests
- Proof pressure hold test for each manufactured hose line
- Verification of connector safety devices through tensile testing
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Marking and Instructions
Clear and durable marking requirements ensure traceability and safety awareness:
- Manufacturer identification
- Maximum allowable working pressure
- Date codes for production and assembly
- Reference to IEC 63458-2
Comprehensive operating instructions are mandated, covering intended use, permissible substances, maintenance, and periodic testing requirements.
Applications
IEC 63458-2:2026 is crucial across industries and settings where high-pressure water jet machines are employed, such as:
- Industrial cleaning and maintenance operations
- Construction, for surface preparation or cutting tasks
- Oil & gas, shipbuilding, and heavy manufacturing industries
- Facility management where safe operation of high-pressure water jets is required
Employers, safety managers, machine manufacturers, and service providers benefit from applying this standard to ensure compliance, reduce accidents, and extend the life of equipment. The implemented safety measures help avoid hazards like hose bursts, unintentional detachment, and improper use-protecting operators and nearby personnel.
Related Standards
For comprehensive safety compliance in high-pressure water jet machinery, the following related standards should be considered alongside IEC 63458-2:2026:
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IEC 63458-1: High pressure water jet machines - Safety - Part 1: High pressure water jet units
(General requirements for water jet units)
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IEC 63458-3: High pressure water jet machines - Safety - Part 3: High pressure spraying devices
(Covers safety of spraying attachments/accessories)
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ISO 12100: Safety of machinery - General principles for design and risk assessment
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ISO 1402: Rubber and plastics hoses and hose assemblies - Hydrostatic testing
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ISO 6803: Hydraulic-pressure impulse test for hoses
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ISO 10619-2: Measurement of hose flexibility and stiffness at sub-ambient temperatures
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ISO 7010: Graphical symbols for safety signs, supporting correct labeling practices
By integrating IEC 63458-2:2026 with these documents, organizations ensure a robust safety framework for the operation of high-pressure water jet machines. This promotes international best practices, reduces liability, and advances workplace safety culture.