ISO 3949:2020 塑料软管和软管组件 液压装置用织物增强型 规范

标准编号：ISO 3949:2020

中文名称：塑料软管和软管组件 液压装置用织物增强型 规范

英文名称：Plastics hoses and hose assemblies — Textile-reinforced types for hydraulic applications — Specification

发布日期：2020-07

标准范围

This document specifies requirements for three types of textile-reinforced thermoplastics hoses and
hose assemblies of nominal size from 3,2 to 25. Each type is divided into two classes dependent on
electrical conductivity requirements.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from −40 °C to +93 °C;
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging
from 0 °C to +60 °C 
— water at temperatures ranging from 0 °C to +60 °C.
This document does not include any requirements for end fittings. It is limited to the performance of
hoses and hose assemblies.
NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the
compatibility of the hose with the fluid to be used.

标准预览图