Profipress G mounting unit with SC-Contur
Product information
Profipress G mounting unit with SC‑Contur
for double-pipe gas meters
| Year built (from): | 2007. 06. 20. |
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 companies specialising in 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 and are provided as a support feature.
Regulations from section: Application areas
Regulations from section: Media
Regulations from section: Overview
Regulations from section: Sealing elements
Regulations from section: Compatible components
Regulations from section: Technical data
Regulations from section: Corrosion
Regulations from section: Notes on mounting
Regulations from section: Mounting the wall bracket
Regulations from section: Leakage test
Regulations from section: Maintenance
Safety advice
DANGER!
Danger of explosion due to escaping gas
Smoking and open flames near gas supply lines can lead to explosions.
Keep away from heat, hot surfaces, sparks, open flames and other types of sources of ignition.
Intended use
INFO!
Agree the use of the model for areas of application and media other than those described with Viega.
Areas of application
Use is possible in the following areas among others:
Gas installations
Liquid gas installations
For planning, execution, modification and operation of gas installations, observe the applicable regulations, see Regulations from section: Application areas .
Use is possible in the gas installations described below:
Gas installations
Low pressure range ≤ 100 hPa (100 mbar)
Medium pressure range from 100 hPa (100 mbar) up to 0.1 MPa (1 bar)
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) up to a permitted operating pressure of 0.5 MPa (5 bar)
With liquid gas tank in the low pressure range ≤ 100 hPa (100 mbar) 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
Observe the applicable regulations, see Regulations from section: Application areas .
Media
The model is also suitable for the following media, amongst others:
Gases, see Regulations from section: Media
Liquid gases, only in the gaseous state for domestic and commercial applications, see Regulations from section: Media .
Product description
Overview
INFO!
Viega gas fittings conform with the requirements of the applicable regulations. The gas fittings have been tested and certified by the DVGW in accordance with the following criteria, see Regulations from section: Overview :
Leak tightness
Higher thermal resistance (HTR)
The model is equipped as follows:
inlet side gas ball valve with Profipress G press connection with SC‑Contur, casing made of brass
outlet side with Profipress G press connection with SC‑Contur
dual-sided gas meter screw fitting with thread G 1¼
wall bracket with fixing set
The gas meter is screwed onto the gas meter screw fittings G 1¼.
The model is lead-sealable and, in addition, can be locked using a commercially available padlock.
The yellow protective sleeve on the actuating lever shows the medium to be gas.
The model is available in the following dimension: d28.
Press connection with SC-Contur
The press connection has 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.
SC‑Contur
Viega press connectors are equipped with the SC‑Contur. Die SC‑Contur ist eine vom DVGW zertifizierte Sicherheitstechnik und sorgt dafür, dass die Verbindung im unverpressten Zustand undicht ist. In this way, inadvertently unpressed connections are noticed immediately 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)
Sealing elements
The gas meter screw fittings are equipped with nyhalit seals. The seals are higher thermal resistant (HTR).
INFO!
The nyhalit seals may only be used once. The seals in the meter threaded connections must be exchanged when replacing a gas meter (model G2932).
The press connections are factory-fitted with yellow HNBR sealing elements.
Use |
|---|
Operating temperature |
Operating pressure |
| 1) | The maximum pressure equates to the pick-up pressure of the SSV in the pressure regulating valve. |
| 2) | Operating pressure at HTR requirement is max. 0.1 MPa (1 bar) (C1). |
In accordance with the valid regulations, the scope of the operating temperature is between -20 °C and60 °C, see .
Markings on components
The model is marked as follows:
MOP5 for maximum operating pressure 0.5 MPa (5 bar)
Class C1 for maximum operating pressure with HTR requirement 0.1 MPa (1 bar)
Flow direction indicator
DVGW writing
HTR marking
Yellow dot and yellow rectangle for gas
Position indicator
Compatible components
The model is compatible with the following systems:
Profipress G
Sanpress Inox G
Profipress G-Gasarmaturen sind mit Pressanschlüssen ausgestattet.
Die Pressanschlüsse sind nach geltenden Richtlinien mit folgenden Rohrarten geprüft und zugelassen, siehe Regulations from section: Compatible components :
Copper pipes
Edelstahlrohre (Werkstoff 1.4401)
INFO!
Profipress G-Gasarmaturen dürfen nur bis d 28 mit dem Sanpress Inox-Edelstahlrohr (Werkstoff 1.4401) verbunden werden.
Please contact the Viega Service Center if you have any questions on this subject.
Technical data
Observe the following operating conditions for the installation of the model:
Use |
|---|
Operating temperature |
Operating pressure |
| 1) | Maximum pressure – equates to the response pressure of the safety shut-off valve in the pressure regulating valve |
| 2) | Operating pressure with HTR requirement max. 0.1 MPa (1 bar) (Class C1) |
In accordance with the valid regulations, the scope of the operating temperature is between -20 °C and 60 °C, see Regulations from section: Technical data .
Handling
Assembly information
Mounting instructions
Checking system components
System components may, in some cases, have become damaged through transportation and storage.
Check all parts.
Replace damaged components.
Do not repair damaged components.
Contaminated components may not be installed.
Mounting conditions
Observe the following when mounting:
Observe flow direction indicator.
Observe space required for the gas meters according to the manufacturer's information.
Do not cover or paint the model.
Do not install the model in heat zones (e.g. with hot emissions or strong heat radiation.
Use suitable tools.
Exceptions, selection criteria and the arrangement of the components are described in the applicable regulations, see Regulations from section: Notes on mounting .
NOTICE!
Use active and possibly passive protection measures to protect a gas installation from tampering by unauthorised persons.
Generally use active protective measures.
Choose passive protective measures matching the installation, and use them.
The use of active and passive protection measures is specified in the applicable regulations, see Regulations from section: Notes on mounting .
Required tools
The following tools are required for mounting the tapping valve:
The use of original Viega tools or equivalent tools is recommended for installation.
The following tools are required for production of a press connection:
The following tools are required for production of a clamp 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 with suitable profile
Mounting
Mounting the wall bracket
INFO!
Mount the wall bracket first, then the fitting.
The model is equipped with a wall bracket and the required fixing set for mounting on a solid wall.
The fixing material must be adapted to the ground and to the ambient conditions.
Information about the substrate and ambient conditions are to be found the applicable regulations, see Regulations from section: Mounting the wall bracket .
-
Hold the wall bracket in the correct position and mark the drill holes on the wall.
-
Drill the holes.
-
Align the wall bracket horizontally and screw it on.
-
Mount the fitting on the wall bracket.
Cutting pipes to length
NOTICE!
Leaking press connections due to pipes being too short!
If two press connectors are to be mounted onto a pipe at a short distance apart, 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.
For that reason, the length of the pipe must correspond exactly with the total insertion depth of both press connectors.
For information about tools, also see Required tools .
-
Cut the pipe at a right angle as accurately as possible using a pipe cutter or a fine-toothed hacksaw to ensure correct and even pipe insertion depth.
Avoid grooves on the pipe surface.
Pressing the connection
Requirements:
The pipe end is not bent or damaged.
The pipe is clean.
The pipe is deburred.
The correct sealing element is in the press connector.
HNBR = yellow
Sealing element, separator ring and cutting ring are undamaged.
The sealing element is undamaged.
Sealing element and cutting ring are undamaged.
The complete sealing element, separator ring and cutting ring are in the bead.
The complete sealing element and cutting ring are in the bead.
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, and check it by fully removing and refitting the press connector.
-
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.
Comply with the general rules of engineering and the applicable directives, see Standards and regulations .
Document the result.
INFO!
By employing a gas meter connecting piece (y-adaptor model G2326), you can test the gas installation upstream and downstream of the mounting unit without mounted gas meters.
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. For more detailed information, refer to the applicable regulations, 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.