Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ISO DIS 18752:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Rubber hoses and hose assemblies — Wire- or textilereinforced single-pressure types for hydraulic applications — Specification
• Thay thế cho / Replace: ISO 18752:2014
• Chỉ số phân loại Quốc tế (ICS) / By field: 23.040.70 - Vòi và các bộ lắp ráp vòi (hose)
• Số trang / Page: 20

Phạm vi áp dụng / Scope of standard

This document specifies requirements for ten classes, four grades and seven types of wire- or textilereinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single maximum working pressure for all sizes.

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 +100 °C for types AS, AC, BS and BC hoses and from −40 °C to +120 °C for types CS, CC and DC hoses;

- water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from −40 °C to +70 °C;

- water at temperatures ranging from 0 °C to +70 °C;

This document does not include requirements for the connection ends. It is limited to the performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest maximum working pressure of the components.

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.