BS EN 1736:2008 Refrigerating systems and heat pumps. Flexible pipe elements, vibration isolators, expansion joints and non-metallic tubes. Requirements, design and installation
BS EN 1736 describes requirements, design and installation of flexible pipe elements (e. g. metallic flexible pipe, metallic flexible tube, vibration isolator, expansion joint) and non-metallic tube used in the refrigerant circuits of refrigerating systems and heat pumps.
BS EN 1736 also describes the requirements to qualify the tightness of non-metallic tubes (e.g. plastic) used in evaporating and/or condensing sides of refrigerating systems and heat pumps.
BS EN 1736 does not apply to flexible pipes that are only occasionally stressed beyond the elastic limit, e. g. during repair work, or to joints which are free to rotate or hinge.
Contents of BS EN 1736:
- Foreword
- Introduction
- Scope
- Normative references
- Terms and definitions
- Applications
- Materials
- Pressure and pulsation requirements
- Permeability of non-metallic flexible tubes
- Internal cleaness, internal humidity and permeability of water vapour
- End connections
- Pre-charged flexible pipe elements
- Marking
- Documentation