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2 Product information

2.1

Intended use

The use of the model for areas of use and media other than

those described must be approved by the Viega Service

Center.

2.1.1

Areas of use

Use is possible in the following areas among others:

n

Gas installations

n

Liquid gas systems

The general rules of engineering must be observed for planning, execu-
tion, alteration and operation gas installations.

E. g. the following regulations apply:

n

DVGW-TRGI 2008 for gas installations

n

DVFG-TRF 2012 for liquid gas systems

2.1.2

Media

The model is suitable for the following media, amongst others:

n

Gases
in acc. with DVGW Worksheet G 260

n

Liquid gases, only in the gaseous state for domestic and commercial
applications
in acc. with DVGW-AB G 260

2.2

Product description

2.2.1

Overview

Viega gas fittings conform with the requirements of

DIN EN 331. The gas fittings are tested and certified in

accordance with the following criteria by the DVGW:

Leak tightness in acc. with 3537-1

higher thermal resistance (HTR)

Product information

Profipress G mounting unit

6 from  19

Summary of Contents for 2648S

Page 1: ...for double pipe gas meters Model Year built 2648S from 02 2009 en_INT Profipress G mounting unit Instructions for Use ...

Page 2: ...Profipress G mounting unit 2 from 19 ...

Page 3: ...2 3 Sealing elements 9 2 2 4 Markings on components 9 2 2 5 Compatible components 10 2 2 6 Operating mode 10 2 2 7 Technical data 12 2 3 Information for use 13 2 3 1 Corrosion 13 3 Handling 14 3 1 Assembly information 14 3 1 1 Mounting instructions 14 3 1 2 Required tools 14 3 2 Mounting 15 3 2 1 Mounting the wall bracket 15 3 2 2 Shortening the pipes 16 3 2 3 Pressing the connection 16 3 2 4 Leak...

Page 4: ...t permitted for individuals without the abovementioned training or qualification to mount install and if required service 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 1 2 Labelling of notes Warning and advisory texts are set a...

Page 5: ...rds 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 pertinent national laws stand ards regulations and guidelines as well as other technical guidelines have priority over German European guidelines in this manual The information is ...

Page 6: ...ply n DVGW TRGI 2008 for gas installations n DVFG TRF 2012 for liquid gas systems 2 1 2 Media The model is suitable for the following media amongst others n Gases in acc with DVGW Worksheet G 260 n Liquid gases only in the gaseous state for domestic and commercial applications in acc with DVGW AB G 260 2 2 Product description 2 2 1 Overview Viega gas fittings conform with the requirements of DIN E...

Page 7: ...ion can be locked using a com mercially available padlock The yellow protective sleeve on the actuating lever shows the medium to be gas A gas flow monitor GFM type K is integrated into this model A power match across the protectable length is not required when a gas flow monitor type K is installed in metallic pipelines You can find more detailed information about the GFM in the technical data ab...

Page 8: ... connected to the pipe during pressing The sealing element is not deformed during pressing Fig 2 SC Contur Viega press connections are equipped with the SC Contur The SC Contur is a safety technology that is certified by the DVGW and ensures that the connection is guaranteed to be leaky in an unpressed state In this way unpressed connections are noticed immediately during a leakage test SC Contur ...

Page 9: ... C Operating pressure 0 5 MPa 5 bar MOP 5 0 1 MPa 1 bar HTR GT1 2 0 5 MPa 5 bar MOP 5 1 0 1 MPa 1 bar HTR GT1 2 1 Maximum pressure equates to the pick up pressure of the SAV in the pressure regulating valve 2 Operating pressure at HTR requirement max 0 1 MPa 1 bar GT1 In acc with DIN EN 331 the scope of the operating temperature is between 20 C and max 60 C 2 2 4 Markings on components The press c...

Page 10: ...et G 5614 n Copper pipes in acc with DVGW Worksheet GW 392 in acc with DIN EN 1057 n Stainless steel pipes material 1 4401 in acc with DVGW Worksheet GW 541 in acc with DIN EN 10088 Profipress G gas fittings may only be connected to the San press Inox stainless steel pipe material 1 4401 up to dimension 28 mm Please contact the Viega Service Center for questions on this subject 2 2 6 Operating mod...

Page 11: ...essure loss in the range p2 p1 presses against the valve plate and interrupts the flow After the fault has been rectified pressures p1 and p2 re balance by gas flowing from the overflow opening V 0 30 l h at 100 hPa 100 mbar The valve plate opens with help from p2 and the spring force against p1 The gas flow monitor is back in normal operation Fig 4 Normal operation Fig 5 Breakdown Valve closed Fi...

Page 12: ...pressure regulating valve 2 Operating pressure at HTR requirement max 0 1 MPa 1 bar GT1 In accordance with DIN EN 331 the scope of the operating temperature is between 20 C and max 60 C Installation position vertically downwards Design I Operating temperature 20 C up to 70 C Operating pressure 15 100 hPa 15 100 mbar Pressure loss 0 5 hPa 0 5 mbar Closing factor fS 1 45 Overflow opening 30 l h at 1...

Page 13: ...I 2008 Point 5 2 7 2 for internal pipelines n DVFG TRF 2012 Point 7 2 7 1 for external pipelines n DVFG TRF 2012 Point 7 2 7 2 for internal pipelines Overground pipes and fittings in rooms do not normally require external corrosion protection There are exceptions in the following cases n There is external contact with materials containing chloride n Stainless steel pipes must not come into contact...

Page 14: ...nts are described in DVGW TRGI 2008 and DVFG TRF 2012 NOTICE Active and possibly passive protection measures are required to protect a gas installation from tampering by unauthorised persons Active protective measures must always be taken Passive protective measures must be selected and employed depending on the installation The use of active and passive protective measures is regu lated in DVGW T...

Page 15: ...l bracket and the required fixing set for mounting on masonry The fixing material must be adapted to the ground and to the ambient conditions Information about the ground and the ambient conditions are to be found in DVGW TRGI 2008 Point 5 3 7 Hold the wall bracket in the correct position and mark the drill holes on the wall Drill holes Align the wall bracket horizontally and screw on Mount the fi...

Page 16: ...me leaky For that reason the length of the pipe must correspond exactly with the total insertion depth of both press connec tors See Ä Chapter 3 1 2 Required tools on page 14 for information about tools Cut the pipe properly using a pipe cutter or fine toothed hacksaw Avoid grooves on the pipe surface 3 2 3 Pressing the connection Requirements n The pipe end is not bent or damaged n The pipe is de...

Page 17: ...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 press jaw and place at a right angle onto the connector Check the insertion depth using the marking Ensure that the press jaw is placed centrally on the bead of the press connector Handling Profipress G mounting unit 17 from 19 ...

Page 18: ...t be documented By employing a gas meter connecting piece y adaptor model G2326 the remaining gas installation can be tested up and downstream from the mounting unit without mounted gas meters 3 3 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 12 years by an installation contractor Gas installa...

Page 19: ...osal 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 Handling Profipress G mounting unit 19 from 19 ...

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