Install Instructions

Viega IM-MTL 0612
724607
32
14.1 Fuel Gas Systems
All ProPressG fittings have a factory
installed HNBR sealing element
that can be installed in ambient
temperature ranges from -40°F
(-40°C) to 180°F (82°C) and a
maximum operating pressure of
125 psi (8.6 bar), making them suitable
for many applications. ProPressG
fittings are approved for installations in
above and below ground applications.
Applications include:
• Natural Gas
• Liquid Propane Gas
• Mixed Fuel Gases (vapor state only)
• Manufactured Fuel Gases
• Butane
• Fuel Oil Heating Systems
• Carbon Dioxide CO² (dry)
• Vacuum 29.2" Mercury
• Diesel Fuel
• Motor Oil
Note: All systems must be installed
per local code requirements.
ProPressG is ideal for fuel gas
applications due to its excellent
resistance to corrosion, as well as its
ease of handling and installation.
Copper has provided reliable service
for several decades and offers
effective solutions to today’s
technological challenges.
Note: Consult the Viega Technical
support department before installing the
system in other applications or
applications with temperatures and/or
pressures outside the stated ratings.
14.2 Natural Gas/LP Gas
Systems
Because there are a vast number of
known natural and liquid propane
applications and new ones being
discovered, it would be impossible to
list them all. Natural gas and liquid
propane gas piping systems are
commonly utilized in residential,
commercial and industrial applications.
The uses described here
are intended to help depict some of
the applications for ProPressG.
Residential Applications
Residential uses of natural gas and
liquid propane gas include furnaces,
boilers, water heaters, gas dryers,
fireplaces, kitchen ranges, grills,
lighting, as well as many others.
Commercial Applications
Commercial uses of natural gas and
liquid propane gas are very similar to
residential uses. The commercial
sector includes public and private
enterprises, such as office buildings,
schools, churches, hotels, restaurants
and government buildings.
The main uses of natural gas and liquid
propane gas in this sector include space
heating, water heating and cooling. For
restaurants and other establishments
that require cooking facilities, natural
gas and liquid propane gas are popular
choices to fulfill these needs.
Industrial Applications
Natural gas and liquid propane gas
have a multitude of industrial uses
including providing the base
ingredients for such varied products
as plastic, fertilizer, antifreeze and
fabrics. In fact, this industry is the
largest consumer of natural gas
accounting for 43% of natural gas
use across all sectors. Natural gas is
the second most used energy source
in industry, second to electricity.
14.3 Mixed Gases
Gas mixtures are used for a variety
of applications. Due to the vast array
of mixed gases, listed below are the
most common applications.
Compatibility with specific mixtures
must be approved by Viega.
Welding Gases
Various mixtures are used as shield
gases in many gas metal arc welding
methods. The most common mixture
is argon and carbon dioxide.
Plasma-arc cutting and plasma-arc
welding employ plasma gas
(argon and hydrogen) to provide a very
high temperature when used with a
special torch.
Calibration Gases
Calibration gases comprise the
largest of the two groups. Their main
function is to calibrate analytical
equipment. These mixes contain
reactive components at trace levels.
Process Gas Mixtures
Process gas mixtures are either a
component of a manufacturing
process or of a manufactured
product. Applications range from leak
detection, to the production of sealed
products, such as sealed lamps.
14.4 Fuel Oil Systems
There are a variety of uses for
ProPressG in fuel oil piping systems.
Applications include fill and vent
lines, storage tanks, feed lines
connecting storage tanks, burners, as
well as many others
.
14. PROPRESSG APPLICATIONS