The Twin Oxy/Prop Welding Hose is a specialised hose utilised for conveying oxygen and propane gases to welding and cutting equipment. These hoses are predominantly used in the welding and cutting industry, facilitating the flow of essential gases required for various processes. The hoses are often found as a "twin" or "siamese" configuration, where two hoses are glued together for easy management and identification, with the blue hose designated for oxygen and the orange or red hose for propane​​.

Construction and Compliance

Constructed with durability and performance in mind, these hoses feature a smooth tube made of EPDM (Ethylene Propylene Diene Monomer rubber) for the oxygen hose and NBR (Nitrile Butadiene Rubber) for the propane hose. They are reinforced with a textile spiral to withstand the pressures of gas conveyance. The outer cover of these hoses is also made of smooth EPDM rubber which offers excellent resistance to weather, abrasion, and ageing. The hoses conform to ISO 3821:2019 (formerly EN 559:2003) standards, ensuring they meet the necessary safety and performance requirements. The fittings and assembly of these hoses are carried out to BS EN 1256 standards, with safety check valves conforming to ISO 5175 standards. These hoses are manufactured and assembled in the UK by ISO9001 accredited companies, ensuring a high level of quality and compliance​​.


The Twin Oxy/Prop Welding Hose finds its application predominantly in the welding and cutting industry. The blue hose is used for transporting oxygen for welding, cutting, and arc welding processes using shielding gas. The orange or red hose is utilised for the transportation of Liquid Petroleum Gas (LPG), which is used for welding and cutting purposes. These hoses can also be used for conveying other gases like CNG (Compressed Natural Gas), MPS (Methylacetylene-propadiene), especially in welding and cutting operations requiring such gases​​.

Benefits and Features

The twin configuration of these hoses offers a compact, easy-to-manage solution, saving the need for two separate hoses. They are designed to withstand a temperature range of -30°C to +70°C, ensuring reliable performance under varying environmental conditions. The hoses are colour-coded for easy identification, with high compression fittings and hose check valves approved to relevant standards, ensuring a safe and secure connection to the welding and cutting equipment. The continuous inkjet marking on the blue hose facilitates easy identification and traceability​​.

Availability and Customisation

The Twin Oxy/Prop Welding Hose is available in various lengths and diameters to suit different operational needs. They can be purchased fitted or unfitted, and customisations such as different hose fittings and customer-specific header cards for packaging are available upon request. The hoses are also offered in different grades and specifications by various manufacturers, ensuring a wide range of options to cater to the diverse requirements of the welding and cutting industry​.

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