ISO 5774:2023

Overview

ISO 5774:2023 - Plastics hoses - Textile-reinforced types for compressed-air applications - Specification defines minimum requirements for flexible thermoplastic, textile‑reinforced hoses used with compressed air. The standard covers four hose classes (Types A–D), expected operating temperatures (−10 °C to +60 °C), and key performance, dimensional and material criteria to ensure safe, reliable compressed‑air hose assemblies.

Key topics and technical requirements

• Scope and classification
  • Four types by maximum working pressure at 23 °C and 60 °C:
    • Type A: 0.7 MPa (7 bar) at 23 °C; 0.45 MPa (4.5 bar) at 60 °C
    • Type B: 1.0 MPa (10 bar); 0.65 MPa (6.5 bar) at 60 °C
    • Type C: 1.6 MPa (16 bar); 1.1 MPa (11 bar) at 60 °C
    • Type D: 2.5 MPa (25 bar); 1.3 MPa (13 bar) at 60 °C
• Materials and construction
  • Lining and cover: flexible thermoplastic materials
  • Reinforcement: natural or synthetic textile
  • Requirements for uniform thickness, concentricity and absence of defects
• Dimensions and tolerances
  • Inside diameters, tolerances and minimum wall thicknesses specified (nominal bores from 4 mm upward)
  • Concentricity limits based on wall thickness; length tolerances per ISO 1307
• Physical and performance tests
  • Tensile strength / elongation: minimum 15 MPa and 250% for lining and cover (ISO 37)
  • Ageing resistance: limits on change after heat ageing (ISO 188)
  • Hydrostatic testing and proof-pressure criteria (ISO 1402)
  • Hydrolysis test for susceptible materials: 95% RH at 80 ± 2 °C for 500 h; post‑test tensile/elongation must remain >40% of original (Annex A)
  • Other tests: adhesion, bending, low‑temperature flexibility, resistance to liquids and loss on heating
• Accessories and marking
  • Guidance for couplings and end fittings (Annex D; see ISO/TR 17784)
  • Marking, packaging, storage and test reporting requirements included

Applications and users

ISO 5774:2023 is primarily for:

• Hose manufacturers and compound formulators specifying textile‑reinforced thermoplastic hoses for compressed‑air systems
• Design and maintenance engineers in manufacturing, construction, mining and workshop environments
• Procurement, quality and testing laboratories verifying compliance with dimensional and performance tests
• Integrators of hose assemblies where safety, traceability and compatibility with couplings/end fittings matter

Related standards

Normative and referenced standards include ISO 37, ISO 1307, ISO 1402, ISO 176, ISO 1817, ISO 4671, ISO 8033, ISO 8330, ISO 10619‑1/2 and ISO 30013 - useful for detailed test methods and vocabulary.

Keywords: ISO 5774:2023, plastics hoses, textile-reinforced hose, compressed-air hose, thermoplastic hose, hose specification, hydrostatic test, hydrolysis test, tensile strength, hose assembly.