Rubber and plastics hoses, tubing and assemblies for use with propane and butane and their mixture in the vapour phase Part 2 : Assemblies
1Key Takeaways
This document describes and specifies the characteristics and performance requirements of hose and pipe assemblies in accordance with EN 16436-1:2014+A2:2018 under the same conditions. All connections are detailed in Annex B. This document only defines specific connections that are not defined in other standards (such …
2Expert Interpretation
An in-depth analysis of BS EN 16436-2:2018, the technical requirements for rubber and plastic hose assemblies for propane/butane vapor transport, covering material specifications, performance testing, connector design and marking requirements, and an analysis of the key updates to the BS 3212:1991 standard that replaces it.
Key Performance Requirements
Components must pass the following test sequence:
- Pressure test: Proof pressure (2 times working pressure) and burst pressure (3.5-5 times working pressure) test according to EN ISO 1402
- Ageing test: Accelerated aging for 14 days at 70°C (ISO 188)
- Pull-off test: Class 2 components must withstand a pull of 500N for 15 minutes
- Leakage test: Class 3 components allow a maximum leakage of 30cm³/h
Connection design specifications
Couplings must be made of corrosion-resistant metal materials (brass/stainless steel).
- Class 1: EN 16129 H.50-H.55 type pipe end connections are allowed.
- Class 2: Quick-connect devices in accordance with EN 16129 G.67 can be configured.
- Class 3: Pipe end connections are prohibited.
Marking and Packaging Requirements
Component permanent marking must include:
1. Manufacturer's logo
2. Traceability code
3. EN 16436-2 standard number
4. Validity period is required in some countries (e.g. 10 years for Class 2 in France)
Warning example: "For gaseous propane/butane delivery only. Do not use multiple components in series."
Implementation Recommendations
1. When selecting modules, confirm country-specific requirements (e.g., Spain requires Class 2 modules to be replaced every five years).
2. During installation, pay attention to the minimum bend radius to avoid twisting.
3. Regularly inspect connections for corrosion; countries like Germany prohibit the use of clamp connections.
4. Supporting equipment must comply with the interface size requirements of EN 16129.