Viega Megapress G – connect gas supply lines quickly and safely
Say goodbye to welding work in gas installations
Safety is the top priority for gas installations and it is for this reason that they are constructed from thick-walled steel pipes nowadays, particularly in industrial environments. With Viega Megapress G, the connections can also be cold-pressed. The products in this range are not just reliable; they are also a really safe and economical choice, with the cold press connection technology eliminating all the disadvantages associated with welding thick-walled steel pipes.
The press connectors are made from tubular 1.0308 steel with an external zinc-nickel coating. A combination that has proven itself in gas installations time and time again. A special feature of the products is the HNBR profile sealing element, which makes them suitable for use in heating oil and diesel fuel systems as well as gas installations. This element encloses the pipe at three points at the same time, ensuring that the connection is absolutely leakproof even in the case of rough surfaces.
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Three reasons for using Megapress G for gas installations
- Suitable for natural and liquid gas according to DVGW Worksheet G 260, for heating oil and diesel fuel systems, and for hydrogen (H2)
- Economical because the assembly time is up to 60 % shorter (when measured in terms of the connection technology) compared to welding
- High degree of safety because the Viega SC-Contur feature with “leaky when unpressed” functionality is incorporated into every press connection
Areas of application
Special features of the Megapress G system
A diverse array of products for the toughest requirements
Viega Megapress G covers a broad installation spectrum with a large number of components such as elbows, couplings, T-pieces, flanges, adapters and screw fittings in dimensions from ½ an inch to 2 inches. The system is approved both for natural and liquid gas according to DVGW Worksheet G 260 and for installation systems according to DVGW-TRGI 2018 and TRF 2021. In Austria, Megapress G is authorised for gases in accordance with ÖVGW guideline G31 and for liquid gas in the gaseous state in accordance with ÖNORM C 1301. Viega Megapress G has also been tested for HTR (higher thermal resistance) and approved up to a maximum operating pressure of 5 bar (MOP 5).
Time savings of up to 60 %
With Megapress G, thick-walled steel pipes ranging from ½ an inch to 2 inches no longer need to be welded. This makes the pressing technique particularly attractive for buildings with high fire loads and fire protection requirements. The work itself also becomes much easier because a secure and force-fit pipe connection can be created in seconds using just the standard Megapress press tools. This means that Megapress G is not only safer than welding, but also up to 60 % faster.
More than just gas
In addition to industrial gas installations, Megapress G is also suitable for heating oil and diesel fuel systems as well as compressed air systems. This applies regardless of whether installation involves using pipes of threaded or boiler pipe quality or whether the pipe is seamless, welded, galvanised or black. Megapress G can be used to press a wide range of steel pipes manufactured in accordance with DIN EN 10255 (M and H series), DIN EN 10220/10216-1 or DIN EN 10220/10217-1. Detailed information can be found in the Megapress pipe overview.
High level of safety thanks to the Viega SC-Contur
The Viega SC-Contur feature on every connector ensures that any inadvertently unpressed connection points will leak when the dry leakage test is performed. This means that the entire system can be checked by means of a centralised leakage test – without the need for time-consuming visual checks. This reduces the amount of work required and the risk of leaking connections to a minimum. The Megapress G press connectors do not just perform their required function at one pressure point but over the entire testing range between 22 mbar and 3 bar. As a result, the requirements of standards and regulations are easily met.
Advantages of press connection technology at a glance
Time savings
Using the pressing technique to connect piping reduces installation time significantly. Much less effort is required compared to conventional methods such as welding or soldering and it can even be used in hard-to-reach areas. The system elements can be joined together in less than 20 seconds, reducing assembly time by up to 80 %.
Reliability
With our stringent quality standards, high-quality materials and continuous innovations, we ensure reliable press connections. The Viega SC-Contur feature makes any inadvertently unpressed connections clearly visible. It is included in all press connectors and enables a centralised leakage test to be performed.
Cost efficiency
The perfect symbiosis of quality and economic efficiency. Viega press connection technology is the effective way to save time and money. Not only does it eliminate the special steps associated with processes such as welding or soldering, but the pressing method also makes the system less prone to faults and therefore more durable than the alternatives.
Safety
No flames or fumes are generated when pressing pipe connections and the process is absolutely fireproof. This reduces the risks posed by flying sparks or human error – a major advantage, especially in sensitive or hard-to-reach environments. It also minimises the need for special health and safety measures and permits.
The Megapress G assembly process – quick, clean and safe
The Megapress G product range
The Megapress G press connector system offers all the elements required to create a safe and reliable gas installation with thick-walled steel pipes.
The system covers a broad installation spectrum with a large number of components such as elbows, sleeves, T-pieces, flanges, adapters and screw fittings in dimensions from ½ an inch to 2 inches.
Installing Megapress G is a safe and straightforward process thanks to the proven Viega pressing technology. All you need is a Viega Pressgun and the corresponding press jaws – tools that you are likely to have already. This simplifies the installation process considerably, saving you time and money.
Megapress G product range
Profile sealing element made of HNBR – the technical specifications of the material are geared towards use in gas installations as well as heating oil and diesel fuel systems. The Megapress G sealing element also encloses the pipe at three points at the same time, ensuring that the connection is absolutely leakproof even in the case of rough surfaces.
You can find more detailed information about the Megapress G product range here:
Certificates
Megapress G has been certified by the following institutions, among others:
