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You are here: Home1 / Blog2 / LPG Leisure Time3 / Caravanning & Camping4 / From what length of hose assembly do I need an excess flow device?

From what length of hose assembly do I need an excess flow device?

31. March 2016/in Caravanning & Camping, Grill & BBQ, LPG Everyday, LPG in Commerce, LPG in Private Housholds, LPG Leisure Time, Marine

Inhaltsverzeichnis

  • Private/outdoor/camping use
  • Using an excess flow device in industry
  • Using a caravan/motorhome
Approximate reading time: 2 minutes

An excess flow device is standard in many LPG systems. We can show you from what length of hose assembly the device is required.

 But from what length of the hose is it mandatory?

Automatic excess flow device

The excess flow device (EFV) prevents LPG from escaping in the event of considerable damage to the line. It is available in a manual and automatic version for the low pressure range. Only a manual version is available in the medium pressure range. Either the excess flow devices is installed between the pressure regulator and the hose assembly or between the cylinder and the hose assembly. It is generally possible to differentiate between three uses.

Private/outdoor/camping use

For example, you have a gas barbecue in use, either at home or at the campsite, or a heater that you operate with LPG? In these cases, you must use an excess flow device if the hose assembly is longer than 1.5 metres. You will find the corresponding regulation in DVGW worksheet G 612 (A).

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Using an excess flow device in industry

LPG is a popular energy source especially in gastronomy, for example for the operation of outdoor heaters or roasters. As soon as you use a hose assembly in an LPG system which is used for commercial purposes, strict guidelines apply. The safety fitting is already prescribed for a hose assembly length greater than 400 millimetres (DGUV V 79).

Using a caravan/motorhome

Case 1:
You do not operate any LPG consumer equipment while driving, but, for example, connect the outside barbecue only when you arrive at the campsite. If this is the case, the following applies:  The EFV is mandatory for a hose assembly longer than 1.5 metres(see “Private/outdoor/camping use”).

  Can I heat my motorhome and caravan while driving?

Wer seinen Caravan oder das Wohnmobil während der Fahrt beheizen möchte, der benötigt auf jeden Fall eine Schlauchbruchsicherung.Case 2:
If you are heating the caravan or motorhome while driving, you always need an excess flow device. There are usually two hose lengths for this purpose: 450 and 750 millimetres. For both hose assemblies, manual excess flow devices are pre-installed (see image on the left) and attached directly to the cylinder. You may only use a 750 millimetre hose assembly if a pull-out device is installed in the caravan or motor caravan for the gas cylinders.

 

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Approximate reading time: 8 minutes

Information regarding technical systems

This blog will never ask members of the public or unqualified persons to make changes to or fiddle around with technical systems themselves.

In accordance with the Industrial Safety Regulation (BetrSichV), a qualified person must take care of a system which requires monitoring.

A qualified person is someone who has the specific specialist knowledge required. This knowledge is gained by way of a professional apprenticeship, corresponding professional experience or current occupational activity.

Please note that the texts are based on information, regulations and standards for Germany. Please always check the rules and regulations in the relevant country of destination and consult specialists if necessary.

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