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2025
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GB+44023-2024 “Rubber Composite Flexible Hose for Gas Appliance Connections”
Author:
This document specifies the classification, specifications and model designations, appearance, structure and dimensions, performance requirements, test methods, inspection rules, marking and instruction manuals, as well as packaging, transportation, and storage for rubber composite flexible hoses intended for connecting gas appliances.
This document applies to the inner rubber hose of metal‑jacketed flexible hoses used for connecting gas appliances, where the conveyed medium is town gas, the nominal size does not exceed DN15, the maximum working pressure is 0.01 MPa, and the ambient operating temperature ranges from −10 °C to 70 °C.
This document does not apply to rubber‑reinforced flexible hoses intended for internal use that convey media containing dimethyl ether.
The rubber composite flexible hose for internal connections to gas appliances specified in this document is not intended for direct connection to gas appliances.
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