Viega 2337.5 User manual

for drinking water installation
Model Year built:
2337.5 from 04/2017
en_INT
Easytop Inox slanted seat valve (free flow
valve) with SC-Contur
Instructions for Use

Easytop Inox slanted seat valve (free flow valve) with SC-Contur 2 from 20

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 8
2.2.1 Areas of use 8
2.2.2 Media 8
2.3 Product description 9
2.3.1 Overview 9
2.3.2 Press connection with SC-Contur 9
2.3.3 Sealing elements 10
2.3.4 Markings on components 11
2.3.5 Compatible components 11
2.3.6 Technical data 11
2.4 Information for use 12
2.4.1 Corrosion 12
2.5 Optional accessories 12
3Handling 15
3.1 Assembly information 15
3.1.1 Permitted exchange of sealing elements 15
3.1.2 Mounting instructions 15
3.1.3 Required tools 16
3.2 Assembly 17
3.2.1 Replacing the sealing element 17
3.2.2 Shortening the pipes 17
3.2.3 Pressing the connection 18
3.2.4 Leakage test 19
3.3 Maintenance 20
3.4 Disposal 20
Table of contents
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 3 from 20

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
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 4 from 20

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
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 5 from 20

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 applicable in Ger‐
many
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 806, part 1
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 806, part 2
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 806, part 3
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 806, part 4
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 806, part 5
Planning, execution, operation
and maintenance of drinking
water installations
DIN EN 1717
Planning, execution, operation
and maintenance of drinking
water installations
DIN 1988
Planning, execution, operation
and maintenance of drinking
water installations
VDI/DVGW 6023
Planning, execution, operation
and maintenance of drinking
water installations
Trinkwasserverordnung (TrinkwV)
Scope / Notice Regulations applicable in Ger‐
many
Suitability for drinking water Trinkwasserverordnung (TrinkwV)
Regulations from section: Fields of application
Regulations from section: Media
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 6 from 20

Scope / Notice Regulations applicable in Ger‐
many
Suitability for drinking water
installations
Trinkwasserverordnung (TrinkwV)
Suitability for drinking water
installations
DIN 50930-6
Requirements in plastic compo‐
nents in drinking water installa‐
tions
DVGW-Arbeitsblatt W270
Scope / Notice Regulations applicable in Ger‐
many
Compliance with the inspection
requirements (fittings group I)
DIN EN 1213
Scope / Notice Regulations applicable in Ger‐
many
Designation noise class I DIN EN 1213
Scope / Notice Regulations applicable in Ger‐
many
Permitted pipe types DVGW-Arbeitsblatt W 534
Permitted stainless steel pipes DVGW-Arbeitsblatt GW 541
Permitted stainless steel pipes DIN EN 10312
Permitted stainless steel pipes DIN EN 10088
Scope / Notice Regulations applicable in Ger‐
many
External corrosion protection DIN EN 806-2
External corrosion protection DIN 1988-200
External corrosion protection DKI-Informationsdruck i. 160
Regulations from section: Product description
Regulations from section: Overview
Regulations from section: Marking on components
Regulations from section: Compatible components
Regulations from section: Corrosion
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 7 from 20

Scope / Notice Regulations applicable in Ger‐
many
Leakage test for drinking water
installations
DIN EN 806, part 4
Leakage test for drinking water
installations
ZVSHK-Merkblatt
„Dichtheitsprüfungen von Trink‐
wasserinstallationen mit Druckluft,
Inertgas oder Wasser‟
Scope / Notice Regulations applicable in Ger‐
many
Operation and maintenance of
drinking water installations
DIN EN 806-5
2.2 Intended use
Coordinate the use of the model for areas of use and media
other than those described with the Viega Service Center.
2.2.1 Areas of use
Use is possible in the following areas among others:
nDrinking water installations
nIndustrial units
The general rules of engineering and the applicable regulations must be
observed for planning, execution, operation and maintenance drinking
water installations, see Ä „Regulations from section: Fields of applica‐
tion“ on page 6.
2.2.2 Media
The model is also suitable for the following media, amongst others:
nDrinking water without limitations acc. to the applicable directives,
see Ä „Regulations from section: Media“ on page 6
nmaximum chloride concentration 250 mg/l pursuant to applicable
regulations, see Ä „Regulations from section: Media“ on page 6
Regulations from section: Leakage test
Regulations from section: Maintenance
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 8 from 20

2.3 Product description
According to the applicable regulations, Easytop system fittings can be
used for all types of drinking water and are DVGW certified, see
Ä „Regulations from section: Product description“ on page 7. Their
plastic components comply with the KTW recommendation and the
requirements pursuant to the applicable regulations.
2.3.1 Overview
The Easytop system fittings comply with the test require‐
ments specified in the applicable regulations, see Ä „Regu‐
lations from section: Overview“ on page 7.
Sound protection Lap ≤ 20 dB(A)
The model is equipped as follows:
nvalve casing made of stainless steel
nvalve top and valve plate unit made of stainless steel (dead space
free)
ndual-sided press connection with SC-Contur
nnon-rising spindle
nposition indication open/closed
nhandwheel, closed, with ergonomic shape, with exchangeable col‐
oured plastic cap as media marking
The model is available in the following dimensions: d 15 / 18 / 22 / 28 /
35 / 42 / 54.
2.3.2 Press connection with SC-Contur
Fig. 1: Press connection using a press connector as an example
The press connection has a circumferential bead in which the sealing
element lies. The 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.
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 9 from 20

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.
Viega guarantees that unpressed connections are visible during a
leakage test:
nwith wet leakage test in the pressure range from 0.1 hPa–0.65 MPa
(1.0 mbar–6.5 bar)
nwith dry leakage test in the pressure range from 22 hPa–0.3 MPa
(22 mbar–3.0 bar)
2.3.3 Sealing elements
NOTICE!
Only EPDM sealing elements are approved in drinking water
installations. The use of other sealing elements is not per‐
mitted.
The model is factory-fitted with EPDM sealing elements.
Area of use Drinking water
Use all pipeline sections
Operating temperature [Tmax.]90 °C
Operating pressure [Pmax]1.6 MPa (16 bar)
Comments see notes Ä Chapter 2.2.2
„Media“ on page 8
SC-Contur
Area of use of the EPDM sealing element
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 10 from 20

2.3.4 Markings on components
The press connections are marked with a coloured dot. This identifies
the SC-Contur, where the test medium would escape in the case of an
inadvertently unpressed connection.
The model is marked as follows:
nflow direction indicator
nnoise class I pursuant to applicable regulations, see Ä „Regulations
from section: Marking on components“ on page 7
ndimension
nDVGW writing
nposition indicator below the handwheel
ngreen dot for drinking water
2.3.5 Compatible components
The model is equipped with press connections and compatible with the
Sanpress and Sanpress Inox system.
The press connections are tested and approved pursuant to the appli‐
cable regulations with the following pipe types:
nStainless steel pipes (material 1.4401 / 1.4521)
– see Ä „Regulations from section: Compatible components“
on page 7
2.3.6 Technical data
Observe the following operating conditions for the installation of the
model:
Operating temperature [Tmax] 90 °C
Operating pressure [Pmax] 1.6 MPa (16 bar)
The performance diagram shows the pressure losses (in hPa) in relation
to the volume flow and the nominal width.
Pipes
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 11 from 20

1000
100
500
50
10
5
11 5 10 50 100 500 1000
DN15 DN20 DN25 DN32 DN40
DN50
∆p [hPa]
V [l/min]
Fig. 3: Performance diagram slanted seat valve press/threaded connection
2.4 Information for use
2.4.1 Corrosion
Overground pipelines and fittings in rooms do not normally require
external corrosion protection.
There are exceptions in the following cases:
nContact with aggressive building materials such as nitrite or mate‐
rials containing ammonium
nin aggressive surroundings
If external corrosion protection is required, observe the pertinent guide‐
lines, see Ä „Regulations from section: Corrosion“ on page 7.
Easytop fittings made of stainless steel are suitable for all
types of drinking water.
The chloride concentration in the medium must not exceed
a maximum value of 250 mg/l.
This chloride is not a disinfectant, but in fact pertains to the
content in sea and table salt (sodium chloride).
2.5 Optional accessories
The following optional accessories are available:
nDrainage valve
nExtension for drainage valve when using an insulating shell
nEasytop media markings in the red and green for the identification of
the corresponding area of use
nInsulating shells
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 12 from 20

Fig. 4: Model 2334 Easytop drainage valve
Fig. 5: Model 2334.5 Easytop extension
Fig. 6: Model 2237.25 Easytop media marking
Insulating shells
EPS insulating shells are available for all sizes of valves. The two-piece
shells are self-securing and mounted with tools and holding clamps:
they connect seamlessly onto the flat surface of the pipe insulation.
When installing a drainage valve or an extension with drainage valve, a
predetermined breaking point is broken out of the insulating shell.
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 13 from 20

Fig. 7: Model 2210.12 Easytop insulating shell
Product information
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 14 from 20

3 Handling
3.1 Assembly information
3.1.1 Permitted exchange of sealing elements
Important instruction
With their material-specific qualities, sealing elements in
press connectors are adapted for use with the corre‐
sponding media and/or the areas of use of the piping sys‐
tems 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 Ä Chapter 2.3.3
„Sealing elements“ on page 10. The use of other sealing ele‐
ments is not permitted.
3.1.2 Mounting instructions
Do not remove the model from the packaging until immedi‐
ately before use.
System components may, in some cases, become damaged through
transportation and storage.
nCheck all parts.
nReplace damaged components.
nDo not repair damaged components.
nContaminated components may not be installed.
Observe the following when mounting:
nflow direction indicator
nuse suitable tools
Choose the place of installation so that the fitting is easily
accessible, simple to operate and the insulating shell can be
well mounted.
Checking system components
During assembly
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 15 from 20

For information, refer to the instructions for use of the Sanpress and
Sanpress Inox systems.
For information, refer to the instructions for use of the Sanpress and
Sanpress Inox systems.
3.1.3 Required tools
The following tools are required for production of a press connection:
npipe cutter or a fine-toothed hacksaw
ndeburrer and coloured pen for marking
npress machine with constant pressing force
npress jaw or press ring with corresponding adapter jaw, suitable for
the pipe diameter and suitable profile
Fig. 8: Press jaws
Recommended Viega press machines:
nPressgun 5
nPressgun Picco
nPressgun 4E / 4B
nPicco
nType PT3-AH
nType PT3-H / EH
nType 2 (PT2)
Laying and fixing pipes
Length expansion
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 16 from 20

3.2 Assembly
3.2.1 Replacing the sealing element
Do not use pointed or sharp-edged objects to remove the
sealing element. These could damage the sealing element or
bead.
Remove the sealing element from the bead.
Insert a new, undamaged sealing element into the bead.
Ensure that the complete sealing element is in the bead.
3.2.2 Shortening the pipes
NOTICE!
Leaky press connections due to damaged material!
Press connections can become leaky due to damaged
pipes or sealing elements.
Observe the following instructions to avoid damage to pipes
and sealing elements:
– Do not use cutting discs (angle grinders) or flame cutters
when cutting to length.
– Do not use grease or oils (e. g. cutting oil).
For information about tools, also see Ä Chapter 3.1.3 „Required
tools“ on page 16.
Removing the sealing element
Inserting the sealing element
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 17 from 20

Cut the pipe properly using a pipe cutter or fine-toothed hacksaw.
Avoid grooves on the pipe surface.
3.2.3 Pressing the connection
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.
With pipes with a diameter of d 15–28 mm, the length of the
pipe must be at least as long as the total insertion depth of
both press connectors.
Requirements:
nThe pipe end is not bent or damaged.
nThe pipe is deburred.
nThe correct sealing element is in the press connector.
EPDM = polished black
nThe sealing element is undamaged.
nThe complete sealing element is in the bead.
Push the press connector onto the pipe as far as it will go.
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 18 from 20

Mark the insertion depth.
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 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.
Carry out the pressing process.
Open and remove the press jaw.
ðConnection is pressed.
3.2.4 Leakage test
The installer must perform a leakage test before commissioning.
Carry out this test on a system that is finished but not yet covered.
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 19 from 20

Comply with the general rules of engineering and the applicable direc‐
tives, see Ä „Regulations from section: Leakage test“ on page 8.
Document the result.
3.3 Maintenance
NOTICE!
Inform your customer or the operator of the drinking water
installation that the system has to be maintained on a reg‐
ular basis.
Observe the applicable regulations for the operation and maintenance
of drinking water installations, see Ä „Regulations from section: Mainte‐
nance“ on page 8.
Viega recommends actuating the fitting regularly and
checking its function.
3.4 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.
Handling
Easytop Inox slanted seat valve (free flow valve) with SC-Contur 20 from 20