Viega Megapress User manual

Year built:
from 10/2014
en_INT
Megapress
Instructions for Use

Megapress 2 from 32

Table of contents
1About these instructions for use 4
1.1 Target groups 4
1.2 Labelling of notes 4
1.3 About this translated version 5
2Product information 6
2.1 Standards and regulations 6
2.2 Intended use 7
2.2.1 Areas of use 8
2.2.2 Media 8
2.3 Product description 8
2.3.1 Overview 8
2.3.2 Pipes 9
2.3.3 Press connectors 13
2.3.4 Sealing elements 15
2.3.5 Markings on components 15
2.4 Information for use 16
2.4.1 Corrosion 16
3Handling 17
3.1 Transport 17
3.2 Storage 17
3.3 Assembly information 17
3.3.1 Mounting instructions 17
3.3.2 Potential equalisation 22
3.3.3 Permitted exchange of sealing elements 22
3.3.4 Space requirements and intervals 22
3.3.5 Required tools 25
3.4 Assembly 27
3.4.1 Replacing the sealing element 27
3.4.2 Shortening the pipes 28
3.4.3 Deburring the pipes 28
3.4.4 Pressing the connection 29
3.4.5 Leakage test 32
3.5 Disposal 32
Table of contents
Megapress 3 from 32

1 About these instructions for use
Trade mark rights exist for this document, further information can be
found at viega.com/legal .
1.1 Target groups
The information in this manual is directed at heating and sanitary pro-
fessionals and trained personnel.
It is not permitted for individuals without the abovementioned training or
qualification 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.
1.2 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 against possible life-threatening injury.
WARNING!
This symbol warns against possible serious injury.
CAUTION!
This symbol warns against possible injury.
NOTICE!
This symbol warns against possible damage to property.
Notes give you additional helpful tips.
About these instructions for use
Megapress 4 from 32

1.3 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, stand-
ards, 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.
About these instructions for use
Megapress 5 from 32

2 Product information
2.1 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/standards .
Scope / Notice Regulations
No application for fuel gases DVGW G 260
Application in fire extinguishing
systems
DIN 14462
Scope / Notice Regulations
Suitability for heating water for
pump hot water heating systems
VDI-Richtlinie 2035, Sheet 1 and
Sheet 2
Scope / Notice Regulations
Differentiation of pipe types and
pipe series
DIN EN 10255
Requirements in steel pipes -
Boiler pipe quality
DIN EN 10220
Requirements in steel pipes -
Boiler pipe quality
DIN EN 10216–1
Requirements in steel pipes -
Boiler pipe quality
DIN EN 10217–1
Fixing interval between the pipe
clamps
VdS CEA 4001
Scope / Notice Regulations
Area of use of the EPDM sealing
element
nHeating
DIN EN 12828
Regulations from section: Fields of application
Regulations from section: Media
Regulations from section: Pipes
Regulations from section: Sealing elements
Product information
Megapress 6 from 32

Scope / Notice Regulations
Requirements for material storage DIN EN 806-4, Chapter 4.2
Scope / Notice Regulations
Distances and layout (bracket dis-
tances) for steel pipes
Fire risk classes
VdS CEA 4001, Section 15.2
Minimum pipe wall thickness for
nominal widths up to and
including DN 50
VdS CEA 4001, Table 15.02
Requirements and notes for fire
extinguisher and sprinkler sys-
tems
VdS-Anerkennung G 414021
Permissible pressures, nominal
widths and application conditions
VdS 2100-26-2: 2012-04, Table A.
1
Scope / Notice Regulations applicable in Ger-
many
Test on a system that is finished
but not yet covered
DIN EN 806–4
Leakage test for water installa-
tions
ZVSHK-Merkblatt:
"Dichtheitsprüfungen von Trink-
wasserinstallationen mit Druckluft,
Inertgas oder Wasser"
Pressure test in sprinkler systems VdS CEA 4001, Chapter 17
Requirements in filling and top-up
water
VDI 2035
2.2 Intended use
Agree the use of the system for areas of use and media
other than those described with the Viega Service Center.
Regulations from section: Storage
Regulations from section: Notes on mounting
Regulations from section: Leakage test
Product information
Megapress 7 from 32

2.2.1 Areas of use
The system is intended for use in industrial and heating systems and is
a replacement for welded and threaded connections in new installations
and repairs. The system is not suitable for use in drinking water installa-
tions. For this reason, pipes and connectors are labelled with a black
symbol "Not drinking water".
Do not use the piping system for fuel gas, see Ä„Regulations from sec-
tion: Fields of application“ on page 6 .
Use is possible in the following areas among others:
nIndustrial and heating systems
nSprinkler systems
nFire extinguishing systems, see
Ä„Regulations from section: Fields
of application“ on page 6
nCompressed air systems
nCooling water pipelines (closed circuit)
nSystems for technical gases (on request)
2.2.2 Media
The system is suitable for the following media, amongst others:
For the applicable directives, see Ä„Regulations from section:
Media“ on page 6 .
nHeating water for closed pump hot water heating systems
nCompressed air (dry) in compliance with the specification of the
sealing elements being used
– EPDM at oil concentration < 25 mg/m3
nAnti-freeze, cooling brines up to a concentration of 50 %
ntechnical gases (on request)
2.3 Product description
2.3.1 Overview
The piping system consists of press connectors for thick-walled steel
pipes and the corresponding press tools.
Fig. 1: "Not drinking water"
Product information
Megapress 8 from 32

Fig. 2: Megapress press connectors
The system components are available in the following dimensions:
D ⅜ (DN 10), D ½(DN 15), D ¾(DN 20), D 1 (DN 25), D 1¼(DN 32),
D 1½(DN 40), D 2 (DN 50).
2.3.2 Pipes
Megapress press connectors may be used with the following seam-
less (S) or longitudinal welded (W) steel pipes:
nblack
ngalvanised
nindustrially painted
npowder coated
The steel pipes must correspond to the applicable regulations, see
Ä„Regulations from section: Pipes“ on page 6
If the pipe has been coated, the maximum external diameter
mentioned in the table must not be exceeded.
The standard differentiates between heavy pipe series H and medium
pipe series M or between pipe type L, L 1 and L 2. Seamless pipes and
pipes welded along the longitudinal seam belong to the different pipe
series and pipe types, see Ä„Regulations from section: Pipes“
on page 6 .
Threaded pipe quality – heavy series H and Medium series M
Thread
size
[inch]
Nominal width
[DN]
Nominal
external diam-
eter [mm]
Min. external
diameter incl.
coating [mm]
Max. external
diameter incl.
coating [mm]
Wall thickness
heavy series H
[mm]
Wall thickness
medium series
M [mm]
⅜ 10 17.2 16.7 17.5 2.9 2.3
½15 21.3 21.0 21.8 3.2 2.6
Pipe overview – threaded pipe quality
Product information
Megapress 9 from 32

Thread
size
[inch]
Nominal width
[DN]
Nominal
external diam-
eter [mm]
Min. external
diameter incl.
coating [mm]
Max. external
diameter incl.
coating [mm]
Wall thickness
heavy series H
[mm]
Wall thickness
medium series
M [mm]
¾20 26.9 26.5 27.3 3.2 2.6
1 25 33.7 33.3 34.2 4.0 3.2
1¼32 42.4 42.0 42.9 4.0 3.2
1½40 48.3 47.9 48.8 4.0 3.2
2 50 60.3 59.7 60.8 4.5 3.6
Threaded pipe quality – pipe type L and pipe type L 1
Thread size
[inch]
Nominal width
[DN]
Nominal external
diameter [mm]
Min. external
diameter incl.
coating [mm]
Max. external
diameter incl.
coating [mm]
Wall thickness
[mm]
⅜ 10 17.2 16.7 17.4 2.0
½15 21.3 21.0 21.7 2.3
¾20 26.9 26.4 27.1 2.3
1 25 33.7 33.2 34.0 2.9
1¼32 42.4 41.9 42.7 2.9
1½40 48.3 47.8 48.6 2.9
2 50 60.3 59.6 60.7 3.2
Threaded pipe quality – pipe type L 2
Thread size
[inch]
Nominal width
[DN]
Nominal external
diameter [mm]
Min. external
diameter incl.
coating [mm]
Max. external
diameter incl.
coating [mm]
Wall thickness
[mm]
⅜ 10 17.2 16.7 17.1 1.8
½15 21.3 21.0 21.4 2.0
¾20 26.9 26.4 26.9 2.3
1 25 33.7 33.2 33.8 2.6
1¼32 42.4 41.9 42.5 2.6
1½40 48.3 47.8 48.4 2.9
2 50 60.3 59.6 60.2 2.9
Product information
Megapress 10 from 32