This document specifies the terms and definitions, naming and codes, basic parameters, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of flange hose joints (hereinafter referred to as "hose joints") and quality commitment. This document is applicable to joints made of carbon steel as the base material and connected to hoses with a nominal inner diameter of 12.5 mm to 51 mm (nominal hose inner diameter in compliance with GB/T 2351). This document does not apply to hose couplings made of other materials.
T/ZZB 2865-2022 history
2022T/ZZB 2865-2022 Connections for hydraulic fluid power—Flange hose fittings