ISO 23297-2017 PDF

Full title and description

ISO 23297:2017 — Thermoplastic hoses and hose assemblies — Wire or synthetic yarn reinforced single-pressure types for hydraulic applications — Specification. This International Standard specifies requirements for construction, performance and classification of single-pressure thermoplastic hydraulic hoses and hose assemblies reinforced with wire or synthetic yarn.

Abstract

ISO 23297:2017 defines eight classes and two construction types (with adhesive bond between layers and without adhesive bond) of wire- or synthetic-yarn-reinforced thermoplastic hydraulic hoses and hose assemblies, for nominal sizes from 3.2 mm to 31.5 mm. Each class has a single maximum working pressure for all sizes. The standard covers suitability for hydraulic fluids classified as HH, HL, HM, HR and HV (as defined in ISO 6743-4) and specifies applicable temperature ranges and performance requirements. It excludes requirements for end fittings and limits its scope to hose and hose-assembly performance; assembly working pressure is governed by the lowest-rated component.

General information

• Status: Published (confirmed).
• Publication date: November 2017 (Edition 2, 2017‑11). Confirmed on 17 January 2023.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.100.40; 83.140.40.
• Edition / version: Edition 2 (2017).
• Number of pages: 13.

Scope

This standard specifies performance requirements for wire- or synthetic-yarn-reinforced single-pressure thermoplastic hoses and hose assemblies intended for hydraulic applications. It covers eight classes of hoses across nominal sizes 3.2 mm to 31.5 mm, two construction types (with and without adhesive bond between layers), maximum working pressures by class, required temperature grades (grades A and B: −40 °C to +100 °C; grades C and D: −40 °C to +120 °C), and compatibility with hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4. End fittings are excluded; the standard is limited to hose and hose-assembly performance.

Key topics and requirements

• Classification into eight pressure classes with a single maximum working pressure per class.
• Two construction types: adhesive-bonded layer construction and non-adhesive-bonded construction.
• Nominal sizes covered: 3.2 mm to 31.5 mm.
• Temperature grades and limits: grades A/B (−40 °C to +100 °C), grades C/D (−40 °C to +120 °C).
• Intended fluid compatibility: hydraulic fluids HH, HL, HM, HR and HV (per ISO 6743‑4); user/manufacturer responsibility to verify compatibility.
• Performance testing and requirements for hose and hose-assembly integrity (excluding end fittings).
• Requirement that hose-assembly working pressure is governed by the lowest-rated component.

Typical use and users

Used by hose manufacturers, hydraulic-system designers, OEMs of mobile and industrial machinery, maintenance and service engineers, procurement/specification specialists, and test/qualification laboratories. Typical applications include hydraulic circuits in construction, agricultural and industrial equipment where thermoplastic single‑pressure hoses are suitable.

Related standards

ISO 6743-4 (classification of hydraulic fluids) — referenced for fluid compatibility; the previous edition ISO 23297:2008 (withdrawn/replaced by the 2017 edition). The standard sits alongside other ISO series and industry standards that cover hydraulic hoses, hose assemblies and end fittings (users should consult applicable hose‑and‑fitting standards and OEM requirements when specifying complete assemblies).

Keywords

thermoplastic hose; hydraulic hose; hose assembly; wire reinforced; synthetic yarn reinforced; single-pressure; working pressure classes; temperature grades; hydraulic fluids; ISO 23297; hose performance.

FAQ

Q: What is this standard?

A: ISO 23297:2017 is an International Standard that specifies performance and classification requirements for wire- or synthetic-yarn-reinforced single-pressure thermoplastic hoses and hose assemblies for hydraulic applications.

Q: What does it cover?

A: It covers eight hose classes and two construction types for nominal sizes 3.2 mm to 31.5 mm, maximum working pressures by class, temperature grades (−40 °C to +100 °C or −40 °C to +120 °C), and compatibility with hydraulic fluids HH, HL, HM, HR and HV. It does not specify requirements for end fittings; it is focused on hose and hose-assembly performance.

Q: Who typically uses it?

A: Hose manufacturers, hydraulic-system designers and engineers, OEMs, maintenance teams, procurement/specification staff, and testing laboratories involved in hydraulic hose selection, specification and quality assessment.

Q: Is it current or superseded?

A: This is the current edition (Edition 2, published November 2017). The standard was reviewed and confirmed on 17 January 2023, and therefore remains current as of that confirmation date. The 2008 edition was withdrawn and replaced by the 2017 edition.

Q: Is it part of a series?

A: It is part of ISO’s body of standards relevant to hoses and hose assemblies for hydraulic applications and is commonly used together with fluid classification standards (for example ISO 6743-4) and other ISO/industry standards governing hose testing, fittings and assemblies.

Q: What are the key keywords?

A: Thermoplastic hose, hydraulic hose, wire-reinforced, synthetic-yarn-reinforced, single-pressure, working pressure class, temperature grade, hydraulic fluids, hose assembly.