Propress G
Product information
Propress G
Press connector system made of copper for copper pipes
| Year built (from): | 1/07/2006 |
Trade mark rights exist for this document; for further information, go to viega.com/legal .
Target groups
The information in this instruction manual is directed at the following groups of people:
Contract installers
Professional specialist companies for the construction, maintenance and alteration of a natural or liquid gas system
Liquid gas systems may only be constructed, maintained or altered by companies that have the necessary qualification and experience.
Individuals without the abovementioned training or qualification are not permitted to mount, install and, if required, maintain this product. This restriction does not extend to possible operating instructions.
The installation of Viega products must take place in accordance with the general rules of engineering and the Viega instructions for use.
Labelling of notes
Warning and advisory texts are set aside from the remainder of the text and are labelled with the relevant pictographs.
DANGER!
This symbol warns of possible life-threatening injury.
WARNING!
This symbol warns of possible serious injury.
CAUTION!
This symbol warns of possible injury.
NOTICE!
This symbol warns of possible damage to property.
INFO!
This symbol gives additional information and hints.
About this translated version
This instruction for use contains important information about the choice of product or system, assembly and commissioning as well as intended use and, if required, maintenance measures. The information about the products, their properties and application technology are based on the current standards in Europe (e.g. EN) and/or in Germany (e.g. DIN/DVGW).
Some passages in the text may refer to technical codes in Europe/Germany. These should serve as recommendations in the absence of corresponding national regulations. The relevant national laws, standards, regulations, directives and other technical provisions take priority over the German/European directives specified in this manual: The information herein is not binding for other countries and regions; as said above, they should be understood as a recommendation.
Standards and regulations
The following standards and regulations apply to Germany / Europe. National regulations can be found on the relevant web site of your country at viega.com.au/standards
Regulations from section: Fields of application
Scope / Notice | Regulations applicable in Germany |
|---|---|
Planning, execution, modification and operation of gas installations | DVGW-TRGI 2018 |
Gas installations for industrial, commercial and process plants | DVGW-Arbeitsblatt G 5614 |
Gas installations for industrial, commercial and process plants | DVGW-Arbeitsblatt G 462 |
Gas installations for industrial, commercial and process plants | DVGW-Arbeitsblatt G 459‑1 |
Gas installations for industrial, commercial and process plants | DVGW-Fachinformation Nr. 10 |
Planning, execution, modification and operation of liquid gas installations | DVFG-TRF 2012 |
Regulations from section: Media
Scope / Notice | Regulations applicable in Germany |
|---|---|
Suitability for gasses Liquid gas in the gaseous state | DVGW-Arbeitsblatt G 260 |
Suitability for fuel oil | DIN 51603‑1 |
Suitability for Diesel fuel | DIN EN 590 |
Regulations from section: Pipes
Scope / Notice | Regulations applicable in Germany |
|---|---|
Rules of the fixing technology for gas installations | DVGW-TRGI 2018, Point 5.3.7 |
Rules of the fixing technology for gas installations | DVFG-TRF 2012, Point 7.3.6 |
Approval of press connectors for use with copper pipes | DVGW G 5614 |
Approval of press connectors for use with copper pipes | DIN EN 1057 |
Approval of press connectors for use with copper pipes | DVGW-Arbeitsblatt GW 392 |
Regulations from section: Corrosion
Scope / Notice | Regulations applicable in Germany |
|---|---|
(Subsequent) corrosion protection for underground installation | DIN 30672 |
Corrosion protection for external pipes | DVGW-TRGI 2018, Point 5.2.7.1 |
Corrosion protection for internal pipelines | DVGW-TRGI 2018, Point 5.2.7.2 |
Corrosion protection measures for external pipelines | DVFG-TRF 2012, Point 7.2.7.1 |
Corrosion protection for internal pipelines | DVFG-TRF 2012, Point 7.2.7.2 |
Overground pipelines in recesses in the bare floor or levelling layer | DVGW-TRGI 2008, Point 5.3.7.8.4 |
Regulations from section: Storage
Scope / Notice | Regulations applicable in Germany |
|---|---|
Requirements for material storage | DIN EN 806‑4, Chapter 4.2 |
Regulations from section: Notes on mounting
Scope / Notice | Regulations applicable in Germany |
|---|---|
The general rules of mounting for gas installations | DVGW-TRGI 2018, Point 5.3.7 |
The general rules of mounting for gas installations | DVFG-TRF 2012, Point 7.3.6 |
Regulations from section: Leakage test
Scope / Notice | Regulations applicable in Germany |
|---|---|
Leakage test for gas installations | DVGW-TRGI 2018, Point 5.6 |
Testing and initial commissioning of a liquid gas system | DVFG-TRF 2012, Point 8 |
Regulations from section: Maintenance
Scope / Notice | Regulations applicable in Germany |
|---|---|
Ensuring and maintaining a safe operating condition of gas installations | DVGW-TRGI 2018, Appendix 5c |
Intended use
INFO!
Coordinate the use of the system for areas of use and media other than those described with the Viega Service Center.
INFO!
The expression "SC‑Contur" appearing in the instructions for use means "Smart Connect Feature".
Areas of use
Use is possible in the following areas among others:
Gas installations, see Regulations from section: Fields of application
Liquid gas installations, also see Regulations from section: Fields of application .
Heating oil pipelines
Diesel pipes
Compressed air systems
Gas installation
For planning, execution, modification and operation of gas installations, observe the applicable regulations, see Regulations from section: Fields of application .
Use is possible in the gas installations described below:
Gas installations
Low pressure range ≤ 100 hPa (100 mbar, 10 kPa)
Medium pressure range from 100 hPa (100 mbar, 10 kPa) up to 0.1 MPa (1 bar, 100 kPa)
industrial, commercial and process technical systems with the corresponding directives and technical regulations
Liquid gas installations
With liquid gas tank in medium pressure range downstream of the pressure regulating valve, 1st level on the liquid gas tank > 100 hPa (100 mbar, 10 kPa) up to a permitted operating pressure of 0.5 MPa (5 bar, 500 kPa)
With liquid gas tank in the low pressure range ≤ 100 hPa (100 mbar, 10 kPa) behind the pressure regulating valve, 2nd level
with liquid gas pressurised container (liquid gas bottles) < 16 kg
behind the small bottle pressure regulating valve
with liquid gas tank (liquid gas bottle) ≥ 16 kg
behind the large bottle pressure regulating device
INFO!
The Sanpress Inox G system must be used for liquid gas installations in areas with requirements of higher thermal resistance (HTR), with a pick-up pressure of the SSV > 0.1 MPa (1 bar, 100 kPa).
Media
The system is suitable for the following media, amongst others:
For the applicable directives, see Regulations from section: Media .
Gases
Liquid gases, only in the gaseous state for domestic and commercial applications
Heating oil
Diesel fuel
Compressed air
Product description
Overview
The piping system consists of press connectors for copper pipes and the corresponding press tools.
The system components are available in the following dimensions: DN 15 / 20 / 25 / 35 / 40 / 50.
Pipes
Propress G press connectors are tested and certified with the following copper pipes, see Regulations from section: Pipes :
Thinner walls than stated are not permitted.
Copper pipes type A
d x s [mm] |
|---|
12.7 x 1.02 |
19.1 x 1.42 |
25.4 x 1.63 |
31.8 x 1.63 |
38.1 x 1.63 |
50.8 x 1.63 |
Volume per metre of pipe [l/m] | Pipe weight [kg/m] | DN |
|---|---|---|
0.089 | 0.335 | 15 |
0.206 | 0.703 | 20 |
0.385 | 1.088 | 25 |
0.637 | 1.379 | 32 |
0.953 | 1.670 | 40 |
1.775 | 2.251 | 50 |
Copper pipes type B
d x s [mm] |
|---|
12.7 x 0.91 |
19.1 x 1.02 |
25.4 x 1.22 |
31.8 x 1.22 |
38.1 x 1.22 |
50.8 x 1.22 |
Volume per metre of pipe [l/m] | Pipe weight [kg/m] | DN |
|---|---|---|
0.093 | 0.301 | 15 |
0.227 | 0.517 | 20 |
0.414 | 0.829 | 25 |
0.675 | 1.046 | 32 |
0.999 | 1.264 | 40 |
1.837 | 1.699 | 50 |
Laying and fixing pipes
Observe the general rules of fixing technology:
For gas installations, see Standards and regulations .
Only fix on components with sufficient stability.
Gas supply lines must not be secured to other pipelines nor should they be used as support for other pipelines.
The system can be secured using commercially available plastic dowels together with non-flammable pipe clamps (e.g. metallic pipe clamps).
With gas supply lines, observe the following fixing intervals for pipelines laid horizontally:
Interval between the pipe clamps
DN | Fixing distance between the pipe clamps [m] |
|---|---|
15 | 1.25 |
20 | 2.00 |
25 | 2.25 |
32 | 2.75 |
40 | 3.00 |
50 | 3.50 |
Press connectors
The press connectors in the Propress G system consist of the following materials:
Copper
Bronze
The press connectors have a circumferential bead in which the sealing element lies. The press connector is deformed upstream and downstream of the bead and permanently connected to the pipe during pressing. The sealing element is not deformed during pressing.
During installation, and later during the pressing, the separator ring protects the sealing element from damage from the cutting ring.
Smart Connect Feature (SC‑Contur)
Viega press connectors are equipped with the Smart Connect Feature (SC‑Contur). The Smart Connect Feature (SC‑Contur) is a safety technology that is certified by the DVGW and ensures that the press connector is guaranteed to be leaky in an unpressed state. In this way, inadvertently unpressed connections are noticed during a leakage test.
Viega guarantees that unpressed connections become visible during a leakage test:
in the case of the dry leakage test, in the pressure range from 2.2–300 kPa (22 mbar–3.0 bar)
Sealing elements
The press connectors are factory-set with yellow HNBR sealing elements.
The sealing element is pre-lubricated and must not be removed from the press connector. In the event that lubrication is required, use only clean water.
Use |
|---|
Operating temperature |
Operating pressure |
Gas installation | Liquid gas installation | Heating oil and diesel pipelines |
|---|---|---|
-20 °C up to +70 °C | -20 °C up to +70 °C | ≤ 40 °C |
≤ 0.5 MPa (5 bar, 500 kPa) (MOP 5) ≤ 0.1 MPa (1 bar, 100 kPa) (HTB / GT1)2) | ≤ 0.5 MPa (5 bar, 500 kPa) (MOP 5)1) ≤ 0.1 MPa (1 bar, 100 kPa) (HTB / GT1)2) | ≤ 0.5 MPa (5 bar, 500 kPa) (MOP 5) |
| 1) | The maximum pressure equates to the pick-up pressure of the SSV in the pressure regulating valve. |
| 2) | GT1: Operating pressure at HTR requirement 650 °C / 30 min max. 0.1 MPa (1 bar, 100 kPa) |
Markings on components
Markings on press connectors
The press connectors are marked with a coloured dot. The dot identifies the Smart Connect Feature (SC‑Contur) where the test medium would escape in the case of an inadvertently unpressed connection.
The press connectors are marked as follows:
yellow dot and yellow rectangle for gas
Gas for gas supply lines
MOP5 for maximum operating pressure 0.5 MPa (5 bar, 500 kPa)
GT1 for operating pressure with HTR requirement 0.1 MPa (1 bar, 100 kPa)
ATG for certification in France
Gastec for certification in the Netherlands
T2 for certification in Poland
DVGW
KIWA
Handling
Transport
Observe the following when transporting pipes:
Do not pull the pipes over the sill. The surface could be damaged.
Secure pipes during transportation. Pipes may become bent due to shifting.
Do not damage the protective caps on the pipe ends and do not remove them until immediately before mounting. Damaged pipe ends must not be pressed.
INFO!
In addition, observe the instructions provided by the pipe manufacturer.
Storage
For storage, comply with the requirements specified in the applicable regulations, see Regulations from section: Storage :
Store components in a clean and dry place.
Do not store the components directly on the floor.
Provide at least three points of support for the storage of pipes.
Where possible, store different sizes separately.
Store small sizes on top of larger sizes if separate storage is not possible.
INFO!
In addition, observe the instructions provided by the pipe manufacturer.
Assembly information
Mounting instructions
Checking system components
System components may, in some cases, become damaged through transportation and storage.
Check all parts.
Replace damaged components.
Do not repair damaged components.
Contaminated components may not be installed.
The system is intended for underground device connection pipelines for gas devices for use outside. Press connectors are not permitted in underground liquid gas pipelines.
For gas installations, observe the applicable regulations, see Regulations from section: Notes on mounting .
NOTICE!
Active and possibly passive protection measures are required to protect a gas installation from tampering by unauthorised persons, see Regulations from section: Notes on mounting .
Active protective measures must always be taken.
Passive protective measures must be selected and employed depending on the installation.
The general rules of mounting for gas supply lines
The following conditions amongst others are valid when laying gas supply lines:
Lay gas supply lines with clearance from the installation body, concealed without hollow spaces, or in ventilated ducts or shafts.
Do not install gas supply lines with operating pressures > 100 hPa (100 mbar, 10 kPa) concealed in the wall.
Arrange gas supply lines in such a way that condense water or water dripping from other pipes and components does not affect them.
Do not lay gas supply lines in screed.
Shut-off systems and detachable connections must be easily accessible.
Requirements on concealed installations:
Lay stress-free.
Apply corrosion protection.
Do not use any detachable connections (screw fittings).
Do not use copper pipes together with materials containing nitrite or ammonium.
INFO!
Continuous, connection-free gas supply lines may be laid in hollow spaces (pre-wall constructions) to be connected to a gas device or a gas socket.
Ventilation is not required.
Space requirements and intervals
Pressing between pipelines
Space requirement PT1, type 2 (PT2), PT3-EH, PT3-AH, Pressgun 4B, 4E, 5
DN |
|---|
a [mm] |
b [mm] |
15 | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
20 | 25 | 25 | 30 | 45 | 50 |
50 | 60 | 70 | 85 | 100 | 115 |
Space requirement Picco, Pressgun Picco
DN |
|---|
a [mm] |
b [mm] |
15 | 20 | 25 | 32 |
|---|---|---|---|
25 | 25 | 25 | 25 |
60 | 65 | 65 | 65 |
Space requirement press ring
DN |
|---|
a [mm] |
b [mm] |
15 | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
40 | 45 | 50 | 55 | 60 | 65 |
50 | 55 | 70 | 75 | 85 | 90 |
Pressing between pipe and wall
Space requirement PT1, type 2 (PT2), PT3-EH, PT3-AH, Pressgun 4B, 4E, 5
DN |
|---|
a [mm] |
b [mm] |
c [mm] |
15 | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
25 | 30 | 30 | 50 | 50 | 55 |
65 | 80 | 85 | 95 | 115 | 140 |
40 | 40 | 50 | 50 | 70 | 80 |
Space requirement Picco, Pressgun Picco
DN |
|---|
a [mm] |
b [mm] |
c [mm] |
15 | 20 | 25 | 32 |
|---|---|---|---|
30 | 30 | 30 | 30 |
70 | 75 | 80 | 80 |
40 | 40 | 40 | 40 |
Space requirement press ring
DN |
|---|
a [mm] |
b [mm] |
c [mm] |
15 | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
40 | 45 | 50 | 55 | 60 | 65 |
50 | 60 | 70 | 75 | 85 | 90 |
35 | 40 | 45 | 50 | 55 | 65 |
Distance to walls
Minimum distance with DN 15‑50
Press machine |
|---|
Type PT3-AH |
Pressgun 4B |
Pressgun 5 |
Picco / Pressgun Picco |
amin [mm] |
|---|
50 |
35 |
Interval between the pressings
NOTICE!
Leaking press connections due to pipes being too short
If two press connectors are to be mounted next to one another onto a pipe without an interval, the pipe must not be too short. If the pipe is not inserted up to the prescribed insertion depth in the press connector during pressing, the connection may leak.
Minimum distance with press jaws DN 15–50
DN |
|---|
15 |
20 |
25 |
32 |
40 |
50 |
amin [mm] |
|---|
0 |
0 |
0 |
10 |
15 |
25 |
Z dimensions
For the Z dimensions, refer to the respective product page in the online catalogue.
Required tools
The following tools are required for production of a press connection:
pipe cutter or a fine-toothed hacksaw
deburrer and coloured pen for marking
press machine with constant pressing force
Press jaw or press ring with corresponding hinged adapter jaw, suitable for the pipe diameter and suitable profile
INFO!
Viega recommends the use of Viega system tools when installing the press fittings.
The Viega system press tools have been developed and tailored specifically for the installation of Viega press connector systems.
Assembly
Bending pipes
Copper pipes in the sizes DN 15 and 20 can be bent cold with commercially available bending equipment (radius at least 3.5 x d).
The pipe ends (a) must be at least 50 mm long so that the press connectors can be mounted properly.
Shortening the pipes
NOTICE!
Leaking press connections due to damaged material!
Press connections can become leaky due to damaged pipes or sealing elements.
Observe the following instructions to avoid damage to pipes and sealing elements:
Do not use cutting discs (angle grinders) or flame cutters when cutting to length.
Do not use grease or oils (e. g. cutting oil).
For information about tools, also see Required tools .
-
Cut the pipe using a pipe cutter or fine-toothed hacksaw.
Avoid grooves on the pipe surface.
Deburring the pipes
The pipe ends must be thoroughly deburred internally and externally after shortening.
NOTICE!
Damage due to the wrong tool!
Do not use sanding disks or similar tools when deburring. The pipes could be damaged by these.
-
Deburr the inside and outside of the pipe.
Pressing the connection
Requirements:
The pipe end is not bent or damaged.
The pipe is deburred.
The correct sealing element is in the press connector.
HNBR = yellow
The sealing element is undamaged.
The complete sealing element is in the bead.
-
Push the press connector onto the pipe as far as it will go.
-
Mark the insertion depth.
-
Place the press jaw onto the press machine and push the retaining bolt in until it clicks into place.
INFO!Observe the press tool instruction manual.
-
Open the press jaw and place it at a right-angle onto the press connector.
-
Check the insertion depth using the marking.
-
Ensure that the press jaw is placed centrally on the bead of the press connector.
-
Carry out the pressing process.
-
Open and remove the press jaw.
-
Connection is pressed.
Leakage test
The installer must perform a leakage test before commissioning.
Carry out this test on a system that is finished but not covered.
Observe the applicable regulations, see Regulations from section: Leakage test .
Document the result.
Maintenance
The gas installation must be given a visual inspection, e. g. by the owner, once a year.
Serviceability and leak tightness must be checked every twelve years by an installation contractor.
To be covered by the warranty and to ensure the safe operation of the gas installations, operate and maintain them as intended, see Regulations from section: Maintenance .
Disposal
Separate the product and packaging materials (e. g. paper, metal, plastic or non-ferrous metals) and dispose of in accordance with valid national legal requirements.