Profipress G gas ball valve with SC-Contur, with test opening
Product information
Profipress G gas ball valve with SC‑Contur, with test opening
| Year built (from): | 01.11.2007 |
Trade mark rights exist for this document, further information can be found at www.viega.com/legal-notices.
Target groups
The information in this instruction manual is directed at the following groups of people:
contract installers registered in the installers' register of a utility company
professional specialist companies for 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.
It is not 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.
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.
INFO!
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. 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, standards, regulations and guidelines, as well as other technical guidelines, have priority over German/European guidelines in this manual: The information is not binding for other countries and territories and should, as mentioned, be considered as support.
Intended use
INFO!
The use of the model for areas of use and media other than those described must be approved by the Viega Service Center.
Areas of use
Use is possible in the following areas among others:
Gas installations
Liquid gas systems
Compressed air systems
The general rules of engineering must be observed for planning, execution, alteration and operation gas installations.
E. g. the following regulations apply:
DVGW-TRGI 2008 for gas installations
DVFG-TRF 2012 for liquid gas systems
Use is possible in the gas installations described below:
gas installations in acc. with DVGW-TRGI 2008
low pressure range ≤ 100 hPa (100 mbar)
medium pressure range from 100 hPa (100 mbar) up to 0.1 MPa (1 bar)
industrial, commercial and process technical systems with the corresponding DVGW instruction and engineering regulations, e. g.: DVGW Worksheet G 5614, G 462, G 459‑1 and DVGW Technical information No. 10
liquid gas installations in acc. with DVFG-TRF 2012
with liquid gas tank in medium pressure range behind the pressure regulating device, 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 low pressure range ≤ 100 hPa (100 mbar) behind the pressure regulating device, 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
Media
The model is suitable for the following media, amongst others:
Gases
in acc. with DVGW Worksheet G 260
Liquid gases, only in the gaseous state for domestic and commercial applications
in acc. with DVGW-AB G 260
Compressed air
Product description
Overview
INFO!
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)
The model is equipped as follows:
casing made of gunmetal
inlet side with Rp internal thread
outlet side with Profipress G press connection with SC‑Contur
test opening < 1 mm
test screw in the dimension G ⅛
yellow, powder-coated T handle made of metal, rotatable by 90°
The model is lead-sealable and, in addition, can be locked using a commercially available padlock.
The model is available in the following dimensions:
DN | Rp | d |
|---|---|---|
20 | ¾ | 22 |
25 | ¾ | 28 |
25 | 1 | 22 |
25 | 1 | 28 |
Press connection with SC-Contur
The press connection has a circumferential bead in which the sealing element lies. The connector is deformed in front of and behind the bead and permanently connected to the pipe during pressing. The sealing element is not deformed during pressing.
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:
with dry leakage test in the pressure range from 22 hPa–0.3 MPa (22 mbar–3.0 bar)
Sealing elements
The press connection is factory-fitted with a yellow HNBR sealing element.
Use |
|---|
Operating temperature |
Operating pressure |
Gas installation | Liquid gas installation |
|---|---|
-20 °C up to +70 °C | -20 °C up to +70 °C |
≤ 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.
Threaded connection
Prerequisite for a threaded connection, which seals via a thread, is a threaded pair in acc. with DIN EN 10226‑1. In acc. with DIN EN 10226‑1 comprises a permitted threaded pair consisting of a conical external thread and a cylindrical internal thread, e. g. R ¾ and Rp ¾.
Only use commercially available and chloride-free, DVGW approved sealant in acc. with DIN 30660 and DIN EN 751‑2 to seal threads.
INFO!
Produce the threaded connection first then the press connection.
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:
MOP5 for maximum operating pressure 0.5 MPa (5 bar)
GT1 for operating pressure with HTR requirement max. 0.1 MPa (1 bar)
Flow direction indicator
DWGW writing
HTR marking
yellow dot and yellow rectangle for gas
Compatible components
The model is compatible with the following systems:
Profipress G
Sanpress Inox G
Profipress G gas fittings are equipped with press connections.
The press connections are tested and certified with the following types of pipe in accordance with DVGW Worksheet G 5614:
Copper pipes
in acc. with DVGW Worksheet GW 392
in acc. with DIN EN 1057
Stainless steel pipes (material 1.4401)
in acc. with DVGW Worksheet GW 541
in acc. with DIN EN 10088
INFO!
Profipress G gas fittings may only be connected to the Sanpress Inox stainless steel pipe (material 1.4401) up to dimension 28 mm.
Please contact the Viega Service Center for questions on this subject.
Technical data
Observe the following operating conditions for the installation of the model:
Use |
|---|
Operating temperature |
Operating pressure |
Gas installation | Liquid gas installation |
|---|---|
-20° C up to +70° C | -20° C up to +70° C |
≤ 0.5 MPa (5 bar) (MOP5) ≤ 0.1 MPa (1 bar) (HTR / GT1)2) | ≤ 0.5 MPa (5 bar) (MOP5)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 accordance with DIN EN 331 the scope of the operating temperature is between -20 °C and max. +60 °C.
Handling
Assembly information
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.
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 order of the components 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 regulated in DVGW-TRGI 2008, Point 5.3.9.
Required tools
The following tools are required for production of a press 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 adapter jaw, suitable for the pipe diameter and suitable profile
Recommended Viega press machines:
Pressgun 5
Pressgun Picco
Pressgun 4E / 4B
Picco
Type PT3-AH
Type PT3-H / EH
Type 2 (PT2)
Mounting
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.
For that reason, the length of the pipe must correspond exactly with the total insertion depth of both press connectors.
See Required tools for information about tools.
-
Cut the pipe properly using a pipe cutter or fine-toothed hacksaw.
Avoid grooves on the pipe surface.
Pressing the connection
Requirements:
The pipe end is not bent or damaged.
The pipe is deburred.
The correct sealing element is in the press connector.
HNBR = yellow
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.
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.
-
Complete pressing.
-
Open and remove press jaw.
-
Connection is pressed.
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. g. the following regulations apply:
DVGW-TRGI 2008, Point 5.6
DVFG-TRF 2012, Point 8 (Testing and commissioning of a liquid gas system)
The result must be documented.
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 installations must be operated and maintained as intended to ensure and maintain a safe operating condition. Detailed information on this topic can be found in DVGW-TRGI 2008 appendix 5c.
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.