Install Instructions

Viega IM-MTL 0612
724607
31
13.1 System Description
ProPressG is a copper press
connection system designed to meet
the demands of natural gas and liquid
propane gas in the vapor state, as
well as fuel oil systems. Press
fittings are manufactured in copper
and bronze and fittings with NPT
connections are manufactured in
bronze. ProPressG fittings use an HNBR
sealing element to provide permanent
leak-proof connections in dimensions
from 1/2" to 2". All fittings have a built-in
Smart Connect Feature. ProPressG may
be used up to 125 psi and an ambient
temperature range of -40°F – 180°F for
CSA approved applications. Consult
your local Viega sales representative for
additional applications and
operating parameters.
13.2 Applications
CSA LC-4 Approved Applications
• Natural Gas
• Liquid Propane Gas
• Mixed Fuel Gases (vapor state only)
• Manufactured Fuel Gases
• Butane
Other Approved Applications
• 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.
13.3 Product Description
Viega ProPressG fittings are currently
offered in 120 configurations. Fittings
are provided with a factory installed
HNBR sealing element, yellow in color.
ProPressG fittings must be used with
type K or L copper tubing. Hard copper
tubing can be used in 1/2" - 2" and
soft copper tubing in 1/2" - 1-1/4"
diameters. (Note: Local codes generally
prohibit the use of type M copper tubing
for use in natural and liquid propane gas
piping systems.) All tubing must comply
with ASTM B88 standards. ProPressG
fittings are approved for installations in
above and below ground applications.
Every ProPressG fitting has our patented
Smart Connect feature. This feature
allows the installer to quickly identify an
unpressed connection during pressure
testing. A noticeable drop in pressure
will occur in testing ranging from 1/2 to
85 psi. All ProPressG systems must be
installed per local code requiremnents.
Viega ProPress products carry a
50-year warranty against defects in
material and workmanship. The
RIDGID lifetime warranty applies to
tools, jaws and press rings from The
Ridge Tool Company.
13.4 Advantages
The advantages of installing copper
with ProPressG fitting for fuel gas
piping systems include:
• Lowest overall installed cost
• CSA LC-4 listed & code approved
• Proven joining technology
• Offers most labor savings
• Lowest flexible piping material cost
• Installs with soft & hard copper
• One tool for gas & water fittings
• No special certification required
• Semi-rigid tubing material
• Lighter than black steel pipe
• Technical field support
13.5 Approvals and
Certifications
There are three major codes and
standards regulating fuel gas piping
systems. They include: The National
Fuel Gas Code, also identified as
NFPA 54, The ICC International Fuel
Gas Code and The IAPMO Uniform
Plumbing Code. All three of these codes
regulate both natural gas and liquid
propane gas piping systems. Type K
or L copper tubing is permitted for fuel
gas piping systems in National Fuel Gas
Code (NFPA 54), the International Fuel
Gas Code, or the Uniform
Plumbing Code.
When using copper tubing, each code
restricts the amount of hydrogen sulfide
permitted in the gas to 0.3 grains of
hydrogen sulfide per 100 standard cubic
feet of gas (0.7 milligrams per 100 liters).
Copper tubing joined by mechanical
fittings or by brazed joints is permitted
and approved (or listed) for use in fuel gas
piping systems. Viega ProPressG fittings
have been listed for use in fuel
gas piping systems by CSA.
CSA International
• CSA LC-4
International Approvals (ProfiPress G):
• UPC Chapter 12 Fuel Piping
• Deutsch Verein des Gas-und
Wasserfaches E.V. (DVGW)
• ICC PMG - 1036
• Lloyd‘s Register (LLOYD‘S)
• Det Norske Veritas (DNV)
• Registro Italiano Navale (RINA)
• Bureau Veritas (BV)
• KIWA
• CSA - B149.1-05
Compliant with:
• IFGC International Fuel Gas Code
• NFPA 54/Z223.1 National Fuel
Gas Code
• NFPA 58 Liquefied Petroleum
Gas Code
• UPC Chapter 12 Fuel Piping
• ICC PMG - 1036
• NFPA 30 Flammable and Combustible
Liquids Code
• NFPA 30A Code for Motor Fuel
Dispensing Facilities and Repair Garages
• NFPA 31 Standard for the Installation
of Oil-Burning Equipment
(supply line only)
13. SYSTEM DESCRIPTION