DVGW certificate for Stauff Connect

(Werdohl, July 2019)

Gas supply to mobile homes and caravans:
DVGW certificate for Stauff Connect

Well-known manufacturers of mobile homes and caravans are using Stauff Connect tube connectors in their gas supply lines. There is now a DVGW  type test certificate for a number of different connection and joining components with type FI-DS double-edged cutting rings, which confirms their successful testing and approval for gas applications up to 16 bar.

Camper vans need gas to provide heating, cooking and cooling in their mobile holiday accommodation. The feed line from the safety gas pressure control system to the distributor or to the individual consumers needs to be designed as a fixed tube. It goes without saying that extremely stringent requirements govern the safety and reliability of these components.

Welded precision 8 or 10 mm diameter steel tubes with a 1 mm wall thickness are generally used for this. Well-known manufacturers use components from the STAUFF Connect range to connect these tubes. The range complies with the relevant requirements, such as DIN EN 1949 (“Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles”) and DVGW code of practice G 607 (“LPG systems in leisure vehicles and residential units”).

The suitability of the Light Series Stauff Connect range for this application, particularly the type FI-DS double-edged cutting rings, is now confirmed by certification by the German Association for Gas and Water (DVGW). Various tests conducted in compliance with DIN 3387-1 (“Separable unthreaded pipe connections for metal gas pipes – Part 1: Connections for pipes with smooth ends”) form the basis of this.  The leak-tightness, internal stress resistance (pressure test), axial strength (tensile strength) and resistance to vibrations were tested, among other things.

The result: The tested components fully passed the test requirements of DIN 3387-1 and are therefore awarded a DVGW type test certification for gas applications up to 16 bar.

Apart from safety and reliability, there are other reasons why manufacturers are using these separable connecting elements: STAUFF is a one-stop supplier for the cutting rings and all other components required as well as relevant assembly machines. The range also includes a machine developed specifically for assembly on tubes with extremely narrow bending radii, a property called for especially in mobile homes and caravans where space is very tight. In addition, premium manufacturers, in particular, also appreciate the high-quality look and excellent corrosion resistance of the zinc/nickel finish of these components, which require no further surface post-treatment work.

Image 1:

Stringent requirements govern gas pipes in mobiles homes and caravans (Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 2:

When the union nut is tightened, the two cutting edges of the cutting ring, arranged behind each other, cut into the tube creating a joint with the necessary positive locking/form locking connection and maximum tear resistance. (Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Background Information

For more than 50 years, the companies of STAUFF Group have been developing, manufacturing and distributing pipework equipment and hydraulic components for mechanical and plant engineering and for service and industrial maintenance.

The overall range currently includes about 40000 standard components in ten product groups as well as a large number of special and system solutions, which are manufactured to customer specifications or based on in-house developments.

Wholly owned manufacturing, sales and service facilities in 18 countries and a tight global network of authorised distribution partners ensure high presence and service paired with a maximum of availability.

With around 1400 employees worldwide, including 580 in Germany, the companies of STAUFF Group achieved external sales of over EUR 251 million in the business year 2018.

Press Contact

Mr Boris Mette
Head of Marketing Communications
Tel.: +49 (0) 2392 / 916-154
Fax: +49 (0) 2392 / 916-270154
E-Mail: b.mette@stauff.com