Geopress G
Press connector system made of gunmetal for underground PE-HD and PE-X pipes
Year built (from): | 1.1.2018 |
Trade mark rights exist for this document; for further information, go to viega.com/legal .
The information in this manual is directed at utility and pipeline construction companies and their technical professionals.
Only specialist companies which can prove they are qualified in accordance with the applicable directives may be engaged for the construction of gas house service connections, see Regulations from section: Target group .
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.
Warning and advisory texts are set aside from the remainder of the text and are labelled with the relevant pictographs.
This symbol warns of possible life-threatening injury.
This symbol warns of possible serious injury.
This symbol warns of possible injury.
This symbol warns of possible damage to property.
This symbol gives additional information and hints.
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.
The following standards and regulations apply to Germany / Europe and are provided as a support feature.
Scope / Notice | Regulations applicable in Germany |
---|---|
Qualification of specialist companies | DVGW-Arbeitsblatt GW 301 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Planning, execution, modification and operation of gas house service connections | DVGW-Arbeitsblatt G 459‑1 |
Planning, execution, modification and operation of liquid gas installations | DVFG-TRF 2021 |
Planning, execution, modification and operation of gas supply lines up to 16 bar operating pressure | DVGW-Arbeitsblatt G 472 |
Pressure test method | DVGW-Arbeitsblatt G 469 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Suitability for gases | DVGW-Arbeitsblatt G 260 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Permitted use with piping materials in gas installations (PE-HD) | DIN 8074/75 |
Permitted types of pipes (PE) – gas supply | DVGW-Arbeitsblatt GW 335-A2 |
Types of pipe (PE) – gas supply | DIN EN 1555 |
Permitted types of pipes (PE-X) – gas supply | DIN 16892/16893 |
Types of pipes (PE-X) – gas supply | DVGW-Arbeitsblatt GW 335-A3 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Area of application of the NBR sealing element
| DVGW G 260 |
Scope / Notice | Regulations applicable in Germany |
---|---|
(Subsequent) corrosion protection for underground installation | DIN 30672 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Transport | Einbauhinweise A 1465 - Pressure pipelines |
Scope / Notice | Regulations applicable in Germany |
---|---|
Requirements for material storage | DIN EN 806‑4, Chapter 4.2 |
Requirements for material storage | Einbauhinweise KRV A 1465 - Pressure pipelines |
Scope / Notice | Regulations applicable in Germany |
---|---|
Threshold values for ovalities | DIN 12201‑2, Table 1 |
Scope / Notice | Regulations applicable in Germany |
---|---|
Leakage test before commissioning the connection line | DVGW-Arbeitsblatt G 459‑1 |
Leakage test before commissioning the connection line | DVGW-Arbeitsblatt G 469 |
Agree the use of the system for areas of application and media other than those described with Viega.
For planning, execution, modification and operation of gas house service connections, observe the applicable regulations, see Regulations from section: Application areas .
The system is suitable for the following media, see Regulations from section: Media :
Gases including liquid gas in the gaseous phase
The max. operating pressure and the max. operating temperature depend on the type of pipe used and the specific application.
Gas
Operating pressure pmax = 1.0 MPa (10 bar)
Use of the support sleeve made of gunmetal/silicon bronze (model 9605) required
The piping system consists of press connectors for underground PE-HD and PE-X pipes and the corresponding press tools.
The system components are available in the following dimensions: d 32 / 40 / 50 / 63.
Only the following plastic pipes may be used for installations with Geopress components:
Type of pipe2) |
---|
PE 80 |
PE 80 |
PE 100 |
PE 100 |
PE-X |
Pipe series SDR | MOP |
---|---|
17.01) | 0.1 MPa (1 bar) |
11.0 | 0.4 MPa (4 bar) |
17.01) 2) | 0.4 MPa (4 bar) |
11.0 | 1.0 MPa (10 bar) |
11.0 | 0.8 MPa (8 bar) |
1)
| PE-80/100/100RC pipelines of pipe series
SDR 17
must only be used for a nominal width of
≥ 75 mm
or greater. |
2)
| see Regulations from section: Pipes |
When using protective jacket pipe, remove the protective jacket according to the manufacturer's instructions.
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. Geopress press connectors are equipped with a clamping ring made of POM for a longitudinal force resistant connection.
Viega press connectors are equipped with the SC‑Contur. The 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:
with dry leakage test in the pressure range from 22 hPa–0.3 MPa (22 mbar–3.0 bar)
The press connectors are factory-fitted with NBR sealing elements.
Area of application |
---|
Operating temperature [Tmax.] |
Operating temperature [Tmin] |
Operating pressure [Pmax] |
Comments |
Gas | Compressed air |
---|---|
— | — |
— | — |
1.0 MPa (10 bar) | 1.0 MPa (10 bar) |
including liquid gas in the gaseous state1) Only with use of the support sleeve made of gunmetal/silicon bronze (model 9605) | dry, oil content < 25 mg / m3 |
1)
| see Regulations from section: Sealing elements |
The yellow dot shows that the press connector is equipped with the SC‑Contur and that the connector is suitable for gas.
Geopress G press connectors are marked with an indicator to determine the insertion depth.
The position of newly laid pipes and connection lines, including detailed information about pipeline parts, must be documented and regularly updated. The traceability code on the press connector allows every press connector to be traced back and simplifies the documentation in as-completed drawings. The sticker with the traceability code is removed after pressing and shows the pressing has taken place.
Due to a lower probability of corrosion in the case of laying in the ground and in contact with ground and surface waters with pH-values between 6 and 8, corrosion protection is not required. Soils containing ammoniac require corrosion protection in acc. with the pertinent guidelines, see Regulations from section: Corrosion .
Only components and supplies (e. g. sealant) that have been awarded a DVGW test symbol may be used.
Do not remove the press connector from the packaging until immediately before use.
For transport, comply with the requirements specified in the applicable regulations, see Regulations from section: Transport
Do not remove the press connector from the packaging until immediately before use.
For storage, comply with the requirements specified in the applicable regulations, see Regulations from section: Storage :
Fit pipes with protective plugs to protect against deformation and contamination.
Avoid strong sunlight and heating.
In addition, observe the instructions provided by the pipe manufacturer.
The installation of the connection pieces is described in the online instructions for use for Geopress tapping valves in the chapter "Creating a house service connection".
The press connector system can be processed at outside temperatures from -10 °C to 60°C. The component temperatures of the press connectors and the press machine must not be less than -5 °C.
System components may, in some cases, have become damaged through transportation and storage.
Check all parts.
Replace damaged components.
Do not repair damaged components.
Inspect pipes visually for the following damage before installation:
Ovalities: threshold values must not be exceeded, see Regulations from section: Notes on mounting .
Dents
Cracks
Grooves on the exterior
damaged pipe ends
Only process the sections of the pipes, which do not exhibit these features.
Important instruction
With their material-specific qualities, sealing elements in press connectors are adapted for use with the corresponding media and/or the areas of use of the piping systems and are generally only certified for them.
The exchange of a sealing element is generally permitted. The sealing element must be exchanged for a designated spare part for the intended application Sealing elements . The use of other sealing elements is not permitted.
Exchanging a sealing element is permitted in the following situations:
if the sealing element in the press connector is obviously damaged and should be exchanged for a Viega spare sealing element made of the same material
d |
---|
a [mm] |
b [mm] |
32 | 40 | 50 | 63 |
---|---|---|---|
65 | 75 | 85 | 95 |
60 | 70 | 75 | 85 |
d |
---|
a [mm] |
b [mm] |
c [mm] |
32 | 40 | 50 | 63 |
---|---|---|---|
65 | 70 | 80 | 90 |
100 | 120 | 125 | 135 |
40 | 45 | 50 | 55 |
Press machine |
---|
Pressgun 4B |
Pressgun 5 |
Pressgun 6 / 6 Plus |
amin [mm] |
---|
50 |
Leaking press connections due to pipes being too short!
If two press connectors are to be mounted 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 become leaky.
d |
---|
32 |
40 |
50 |
63 |
amin [mm] |
---|
20 |
20 |
20 |
20 |
Minimum distances to underground pipelines and objects:
0.2 m to parallel supply pipelines
0.1 m to crossing pipelines
Alternatively, use insulating materials, to prevent pipelines that cross each other from touching.
0.4 m to parallel electric cables over 1 kV
0.4 m to foundation or similar constructions
For the Z dimensions, refer to the respective product page in the online catalogue.
The following tools are required for production of a press connection:
pipe cutter, pipe shear or saw
deburrer and coloured pen for marking
Battery-powered press machine
hinged adapter jaw model 2296.2
Z2 with 32–63 mm diameter
Press ring model 9696.1
Follow the care instructions for the pressing machine, see Care instructions .
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.
For information on how to combine Viega press machines with systems and accessories, please visit Viega Tool Assistant .
Do not use pointed or sharp-edged objects to remove the sealing element. They may damage the sealing element or the bead.
Remove the sealing element from the bead.
Remove the sealing element from the bead, leaving the clamping ring in the press connector. Proceed carefully to avoid damaging the clamping ring.
Insert a new, undamaged sealing element into the bead below the clamping ring.
Make sure that the sealing element is not damaged by the clamping ring.
Ensure that the complete sealing element is in the bead.
For information about tools, also see Required tools .
Cut the pipe to length at right-angles using a pipe shear, pipe cutter or saw.
The pipe ends must be thoroughly deburred internally and externally if shortened using a saw.
Deburr the inside and outside of the pipe.
When using protective jacket pipe, remove the protective jacket according to the manufacturer's instructions.
Requirements:
The pipe end is not bent or damaged.
The pipe is deburred.
When using the protective coating tube, the protective coating is removed.
The sealing element and clamping ring are undamaged.
Do not remove the press connector from the bag until immediately before mounting.
Insert the support sleeve made of gunmetal/silicon bronze, model 9605.
Mark the insertion depth with the help of the marking on the press connector.
Ensure that the sealing element is properly positioned.
Clean the pipe surface with a damp cloth.
Push the press connector up to the marked insertion depth on the pipe.
Avoid contamination of the sealing element.
Scan in the traceability code.
Open the press ring and place it onto the press connector.
Open the hinged adapter jaw and latch it into the holding fixture of the press ring.
Check the insertion depth.
Carry out the pressing.
Make sure there is adequate space at the pressing point.
Keep the press jaw contour and the area around the pressing point clean.
Remove the traceability code.
The connection is marked as having been pressed.
Perform a leakage test according to the applicable regulations before commissioning the connection line, see Regulations from section: Leakage test .
Carry out the test on a house service connection that is finished but not yet covered. The result of the leakage test must be documented as proof of the safety of the pipeline.
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.