08-29-2014, 05:11 AM
Pressing Technology - Pressing instead of Soldering
Traditionally, copper pipes for building services were hard or soft soldered, depending on the application and medium. However, the press connecting technology developed by Viega through to system maturity some 20 years ago offers a more practical alternative.
Up to 50 percent faster processing rate and guaranteed safety
In many countries in Europe these piping systems are even approved for gas installations! The key pillar supporting this safety guarantee is the SC-Contur, which only Viega press connectors provide. Even before pressing begins, water quite visibly emerges on charging the system with a pressure of 1.0 to 6.5 bar. In "dry" leakage testing, the pressure across the entire pressure range immediately drops from 3.0 bar to 22.0 mbar – meaning the unpressed connection can always be reworked in order to prevent damage in system operation.
Flexible and stable
The fast processing rate of the Viega press connectors is equally impressive. After just three processing steps – cutting the pipe to length; installing the press connector and verifying the insertion depth – pressing can be carried out all in one pass. No calibration, as in the case of other piping systems, is necessary. That saves as much as 30 to 50 percent labour, depending on the pipe dimensions, compared to soldering. As the connectors incorporating the Viega technology are always pressed in upstream and downstream of the leak with the sealing ring, the connectors at the same time exhibit high longitudinal force.
A single compact press tool
The pressing operations are executed with the matching press tools and jaws. As well as mains powered press tools, there are also battery powered tools which provide a high degree of flexibility. Their extremely compact design means they can also be used to work in difficult-to-access locations, such as in installation ducts. 180° swivelling jointed press jaw sets provide even greater flexibility where required.
Fire hazard eliminated
There is another reason why press connecting technology has had such success internationally: its enhanced processing safety, particularly compared to soldering. As pressing involves no open flame, and so poses no fire hazard, no fire safety measures are needed. Consequently, press-connected pipes can often even be installed in explosive industrial environments without interrupting production operations.
Such applications also benefit from the breadth of the Viega range which, alongside the Profipress and Profipress G copper systems, also includes coordinated piping systems in stainless steel (Sanpress and Sanpress Inox) and galvanized steel (Prestabo) as well as dimensionally stable piping (Pexfit Pro). This means piping installations for a wide variety of media can be executed by a single contractor, using one press tool and the press jaws.
Traditionally, copper pipes for building services were hard or soft soldered, depending on the application and medium. However, the press connecting technology developed by Viega through to system maturity some 20 years ago offers a more practical alternative.
Up to 50 percent faster processing rate and guaranteed safety
In many countries in Europe these piping systems are even approved for gas installations! The key pillar supporting this safety guarantee is the SC-Contur, which only Viega press connectors provide. Even before pressing begins, water quite visibly emerges on charging the system with a pressure of 1.0 to 6.5 bar. In "dry" leakage testing, the pressure across the entire pressure range immediately drops from 3.0 bar to 22.0 mbar – meaning the unpressed connection can always be reworked in order to prevent damage in system operation.
Flexible and stable
The fast processing rate of the Viega press connectors is equally impressive. After just three processing steps – cutting the pipe to length; installing the press connector and verifying the insertion depth – pressing can be carried out all in one pass. No calibration, as in the case of other piping systems, is necessary. That saves as much as 30 to 50 percent labour, depending on the pipe dimensions, compared to soldering. As the connectors incorporating the Viega technology are always pressed in upstream and downstream of the leak with the sealing ring, the connectors at the same time exhibit high longitudinal force.
A single compact press tool
The pressing operations are executed with the matching press tools and jaws. As well as mains powered press tools, there are also battery powered tools which provide a high degree of flexibility. Their extremely compact design means they can also be used to work in difficult-to-access locations, such as in installation ducts. 180° swivelling jointed press jaw sets provide even greater flexibility where required.
Fire hazard eliminated
There is another reason why press connecting technology has had such success internationally: its enhanced processing safety, particularly compared to soldering. As pressing involves no open flame, and so poses no fire hazard, no fire safety measures are needed. Consequently, press-connected pipes can often even be installed in explosive industrial environments without interrupting production operations.
Such applications also benefit from the breadth of the Viega range which, alongside the Profipress and Profipress G copper systems, also includes coordinated piping systems in stainless steel (Sanpress and Sanpress Inox) and galvanized steel (Prestabo) as well as dimensionally stable piping (Pexfit Pro). This means piping installations for a wide variety of media can be executed by a single contractor, using one press tool and the press jaws.
Viega GmbH & Co. KG