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Summary of Contents for Viega 2648S
- Page 1 Profipress G mounting unit Instructions for Use for double-pipe gas meters Model Year built: 2648S from 02/2009 en_INT...
- Page 2 Profipress G mounting unit 2 from 19...
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Page 3: Table Of Contents
Table of contents Table of contents About these instructions for use Target groups Labelling of notes About this translated version Product information Intended use 2.1.1 Areas of use 2.1.2 Media Product description 2.2.1 Overview 2.2.2 Press connection with SC-Contur 2.2.3 Sealing elements 2.2.4 Markings on components... -
Page 4: About These Instructions For Use
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. -
Page 5: About This Translated Version
About these instructions for use Notes give you additional helpful tips. 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. -
Page 6: Product Information
Product information 2 Product information 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:... - Page 7 Product information 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 ball valve screw fitting with thread G 1¼ Wall bracket with fixing set Gas flow monitor (GFM) The gas meter is screwed onto the gas meter screw fittings G 1¼.
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Page 8: Press Connection With Sc-Contur
Fig. 2: SC-Contur 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. -
Page 9: Sealing Elements
Product information Viega guarantees that unpressed connections are visible during a leakage test: with dry leakage test in the pressure range from 22 hPa–0.3 MPa (22 mbar–3.0 bar) 2.2.3 Sealing elements The gas meter threaded connections are equipped with nyhalit seals. -
Page 10: Compatible Components
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 mode Gas flow monitor (GFM) A gas flow monitor is an active protective measure in a gas installation. - Page 11 Product information The GFM is fully open in normal operation. It is based on the nominal volume flow V̇ The operating volume flow is stable. The Δp from p and p is constant. Fig. 4: Normal operation In the case of a fault, there is a drop in the pressure in the following pipes so that the flow rate increases sharply.
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Page 12: Technical Data
Product information 2.2.7 Technical data Observe the following operating conditions for the installation of the model: Gas installation Liquid gas installation Operating tempera- -20° C up to +70° C -20° C up to +70° C ture ≤ 0.5 MPa (5 bar) ≤... -
Page 13: Information For Use
Product information Information for use 2.3.1 Corrosion Depending on the area of use, corrosion protection measures may have to be taken into account. One differentiates between external pipelines (underground and over- ground external pipelines), as well as internal pipelines. The general rules of engineering must be observed for corrosion protec- tion. -
Page 14: Handling
Handling 3 Handling Assembly information 3.1.1 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. Mounting conditions Observe the following when mounting: Observe flow direction indicator. -
Page 15: Mounting
Handling Fig. 8: Press jaws Recommended Viega press machines: Pressgun 5 Pressgun Picco Pressgun 4E / 4B Picco Type PT3-AH Type PT3-H / EH Type 2 (PT2) Mounting 3.2.1 Mounting the wall bracket Mount the wall bracket first, then the fitting. -
Page 16: Shortening The Pipes
Handling 3.2.2 Shortening the pipes NOTICE! Leaky 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. - Page 17 Handling 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.
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Page 18: Leakage Test
Handling Complete pressing. Open and remove press jaw. ð Connection is pressed. 3.2.4 Leakage test The installer must perform a leakage test before commissioning. This test is carried out on a unit that is finished but not yet covered. The general rules of engineering must be observed. E. -
Page 19: Disposal
Handling 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. Profipress G mounting unit 19 from 19...
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