What is BS EN 14382 about?
BS EN 14382 discusses gas safety shut-off devices. A gas safety shut-off device is a device that will stay in the open position under normal operating conditions and will shut off the flow automatically and completely when the monitored pressure exceeds a pre-set value. BS EN 14382 specifies constructional, functional, testing marking and sizing requirements and documentation of gas safety shut-off devices:
- For inlet pressures up to 100 bar and nominal diameters up to DN 400
- For an operating temperature range from –20 °C to +60 °C
which operate with fuel gases of the 1st and 2nd family as defined in EN 437, used in the pressure regulating stations in accordance with EN 12186 or EN 12279, in transmission and distribution networks and in commercial and industrial installations.
Note: BS EN 14382 does not apply to:
- SSDs upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters
- SSDs designed to be incorporated into pressure-regulating devices used in service lines1 with volumetric flow rate ≤ 200 m3/h at normal conditions and inlet pressure ≤ 5 bar
Who is BS EN 14382 for?
BS EN 14382 on gas safety shut-off devices is useful for:
- Gas equipment manufacturers
- Cylinders manufacturers
- Design engineers
- Quality control personnel
- Research and development facilities
Why should you use BS EN 14382?
Gas safety shut-off devices are designed to operate like circuit-breakers, so when they sense operating pressure that is too high or too low, they automatically shut off the gas flow. The continued integrity of safety shut-off devices is ensured by BS EN 14382. BS EN 14382 considers the reaction of the safety shut-off devices functional class A to the specified reasonable expected failures in terms of “fail close” behaviour, but it should be considered that there are other types of failures whose consequences cannot bring to the same reactions (these risks are covered via redundancy as per EN 12186) and that residual hazards should be reduced by suitable surveillance in use/maintenance.
In BS EN 14382 both safeties shut-off devices that can be classified as “safety accessories” by themselves according to the Pressure Equipment Directive (2014/68/EU), as well as safety shut-off devices that can be used to provide the necessary pressure protection through redundancy (for example, shutoff device integrated into a pressure regulator, shut-off device with a second shut-off device), are considered. Using BS EN 14382 you can specify constructional, functional, testing marking and sizing requirements and documentation of gas safety shut-off devices.
What’s changed since the last update?
BS EN 14382:2019 supersedes BS EN 14382:2005+A1:2009. BS EN 14382:2019 includes some technical changes with respect to BS EN 14382:2005+A1:2009. These include:
- Normative references have been updated
- Terms and definitions have been added
- Classification of two in series SSDs as safety accessory to PED
- Full reference to EN 334:2019 for end connections, flange rating, nominal and face to face dimensions, materials (metallic and non-metallic), verification of strength of pressure bearing parts
- Statistical strength test based on ped provisions