Hydraflex provides a selection of BS3212/2 hose assemblies primarily utilised in gas welding and leisure applications. These assemblies are designed to transport liquid gas including Compressed Natural Gas (CNG), methylacetylene, and propadiene mixes, and are suitable for welding and cutting operations​​.

Construction and Compliance

The BS3212/2 hose assemblies comprise a PVC hose capable of withstanding temperatures ranging from -30°C to +70°C. These hoses can be either braided or non-braided and come with mechanically crimped mild steel ferrules. Braided options include galvanised or stainless steel braids. These assemblies adhere to the BS3212/2 and EN16436-1 Class 2 standards, ensuring their reliability and safety in high-pressure LPG applications​.


The primary applications of BS3212/2 hose assemblies include:

  • Transporting liquid gas for CNG, methylacetylene and propadiene mixes.
  • Welding and cutting operations​​.

Benefits and Features

The BS3212/2 assemblies from Hydraflex offer a range of benefits including:

  • Flexibility in construction with the choice of braided or non-braided hoses.
  • Customisation in terms of fittings and lengths to suit specific requirements.
  • Compliance with industry standards ensuring safety and reliability in high-pressure applications​​.

Availability and Customisation

The BS3212/2 hose assemblies are available in a variety of standard stock lengths ranging from standard coils to cut lengths of 400mm to 3000mm, and bore sizes including 20", 24", 35", 36", 42", and 48". There is also the option for other sizes, lengths, and fittings upon request, offering a high level of customisation to meet various application needs. All braided hoses are tagged with an outer label indicating the standard and date, which aids in compliance and tracking​​.

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