Overview
ISO/TS 17165-2:2018 - "Hydraulic fluid power - Hose assemblies - Part 2: Practices for hydraulic hose assemblies" provides practical, safety-focused guidance for the selection, routing, fabrication, installation, replacement, maintenance and storage of hydraulic hoses and hose assemblies. It covers hose types manufactured to ISO 1436, ISO 3862, ISO 3949, ISO 4079 and ISO 11237 and fittings to the ISO 12151 series. Annex A documents real-world failures caused by improper use, supporting risk reduction and root-cause learning.
Key topics and requirements
The technical specification addresses the lifecycle of hydraulic hose assemblies with emphasis on safe, reliable practice:
- Safety considerations: fluid injections, whipping hoses, burns, fire/explosion risks (including static-electric discharge), electrical shock and hazards from fluid-power actuated mechanisms.
- Hose selection and routing: system pressure, suction and external pressure, temperature, permeation, material compatibility with fluids, environment and static dissipation, sizing and minimum bend radius, protection against vibration and external abuse.
- Fabrication best practices: component inspection, compatibility checks between hoses and fittings, cleanliness, assembly equipment and safety gear, marking and final inspection.
- Installation and replacement: pre-installation checks, handling, twist angle and orientation, securing, routing, torque control and system checkouts.
- Maintenance and inspection: recommended inspection frequency, visual checks for hoses and fittings, system component inspections and functional tests.
- Storage and age control: shelf life guidance, storage conditions and tracking of storage periods to maintain hose integrity.
Practical applications
ISO/TS 17165-2 is targeted to professionals who design, install and maintain hydraulic systems:
- Hydraulic system designers and OEMs - for specifying appropriate hoses, fittings and routing to meet safety and performance goals.
- Maintenance technicians and service teams - for inspection schedules, replacement criteria and safe installation procedures.
- Hose assemblers and workshops - for fabrication, cleanliness and marking practices that ensure traceability and reliability.
- Procurement and quality managers - to verify supplier compliance and storage/age-control practices.
Using this guidance reduces downtime, prevents catastrophic failures (leaks, fires, hose whipping), and supports compliance with broader hydraulic fluid power standards.
Related standards
Keywords: ISO/TS 17165-2:2018, hydraulic hose assemblies, hose selection, hose routing, hose installation, hose maintenance, hose fittings, hydraulic fluid power.
Open preview (PDF)Hydraulic fluid power — Hose assemblies — Part 2: Practices for hydraulic hose assemblies