SCHUNK SDV-P Assembly And Operating Manual
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Pressure maintenance valve
SDV-P
Assembly and Operating Manual
Superior Clamping and Gripping
www.comoso.com
This manual remains the copyrighted property of SCHUNK GmbH & Co. KG. It is solely
supplied to our customers and operators of our products and forms part of the product.
This documentation may not be duplicated or made accessible to third parties, in particu-
lar competitive companies,
without our prior permission.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 0389561
Edition: 02.00 |22/08/2014|en
© SCHUNK GmbH & Co. KG
All rights reserved.
Dear customer,
congratulations on choosing a SCHUNK product. By choosing SCHUNK, you have opted for
the highest precision, top quality and best service.
You are going to increase the process reliability of your production and achieve best
machining results – to the customer's complete satisfaction.
SCHUNK products are inspiring.
Our detailed assembly and operation manual will support you.
Do you have further questions? You may contact us at any time – even after purchase.
Kindest Regards
Yours SCHUNK GmbH & Co. KG
Spann- und Greiftechnik
Bahnhofstr. 106 – 134
D-74348 Lauffen/Neckar
Tel. +49-7133-103-0
Fax +49-7133-103-2399
[email protected]
www.schunk.com
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Table of contents
02.00|SDV-P |en
3
Table of contents
1
About this manual .................................................................................................... 4
1.1 Warnings ................................................................................................................... 4
1.2 Applicable documents .............................................................................................. 4
2
Basic safety notes .................................................................................................... 5
2.1 Intended use ............................................................................................................. 5
2.2 Ambient conditions and operating conditions ......................................................... 5
2.3 Product safety........................................................................................................... 6
2.3.1 Protective equipment ................................................................................... 6
2.3.2 Constructional changes, attachments, or modifications .............................. 6
2.4 Personnel qualification ............................................................................................. 6
2.5 Notes on particular risks ........................................................................................... 7
3
Warranty .................................................................................................................. 8
4
Scope of delivery ...................................................................................................... 8
5
Technical data .......................................................................................................... 8
6
Assembly .................................................................................................................. 9
6.1 Mechanical connection ............................................................................................ 9
6.2 Air connection ........................................................................................................ 10
7
Troubleshooting ...................................................................................................... 12
8
Maintenance and care ............................................................................................. 12
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About this manual
4
02.00|SDV-P |en
About this manual
This instruction is an integral part of the product and contains im-
portant information for a safe and proper assembly, commission-
ing, operation, maintenance and help for easier trouble shooting.
Before using the product, read and note the instructions, especial-
ly the chapter "Basic safety notes".
Warnings
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Danger for persons.
Non-compliance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons.
Ignoring a safety note like this can lead to irreversible injury and
even death.
CAUTION
Dangers for persons.
Non-observance can cause minor injuries.
NOTICE
Material damage
Information about avoiding material damage.
Applicable documents
• General terms of business
• Catalog data sheet of the purchased product
The documents listed here, can be downloaded on our homepage
www.schunk.com
1
1.1
1.2
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Basic safety notes
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5
Basic safety notes
Intended use
The pressure maintenance valve was designed for installation in a
machine to temporarily prevent the venting of the pneumatic con-
sumer through the valve at a pressure failure of the supply line.
Thus, a temporary force- or position maintenance can be realized
at different actuators. Especially suited fo grippers, which can not
be equipped with a mechanical gripping force maintenance.
The product is intended for installation in a machine/system. The
requirements of the applicable guidelines must be observed and
complied with.
The product may be used only in the context of its defined applica-
tion parameters ( 5, Page 8).
The product is designed for industrial use.
To use this unit as intended, it is also essential to observe the
technical data and installation and operation notes in this manual
and to comply with the maintenance intervals.
Ambient conditions and operating conditions
• Make sure that the product has a sufficient size for the application.
• Make sure that the environment is free from splash water and
vapors as well as from abrasion or processing dust. Exceptions
are products that are designed especially for contaminated en-
vironments.
2
2.1
2.2
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Basic safety notes
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02.00|SDV-P |en
Product safety
Dangers arise from the product, if:
• the product is not used in accordance with its intended purpose.
• the product is not installed or maintained properly.
• the safety and installation notes are not observed.
Avoid any manner of working that may interfere with the function
and operational safety of the product.
Wear protective equipment.
NOTE
More information are contained in the relevant chapters.
Protective equipment
Provide protective equipment per EC Machinery Directive.
Constructional changes, attachments, or modifications
Additional drill holes, threads, or attachments that are not offered
as accessories by SCHUNK may be attached only with permission
of SCHUNK.
Personnel qualification
The assembly, initial commissioning, maintenance, and repair of
the product may be performed only by trained specialist person-
nel. Every person called upon by the operator to work on the
product must have read and understood the complete assembly
and operating manual, especially the chapter "Basic safety notes"
( 2, Page 5). This applies particularly to personnel only used oc-
casionally, such as maintenance personnel.
2.3
2.3.1
2.3.2
2.4
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Basic safety notes
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7
Notes on particular risks
Generally valid
• In failure of the supply line, the pressure maintenance valve
prevents temporarily the venting of the pneumatic consumers
through the valve.Therefore it must always be assumed that
there is residual energy stored in the system.
• Before installation, modification, maintenance and adjustment,
the module must be vented.Here it is necessary to determine
which consumers and which function is triggered so -> It must
be ensured that no person can be injured.
• For all work, secure the unit against accidental operation.
• Dangers emanating from the downstream consumers, must be
separately registered and safeguarded by the operator.
• Only specially trained staff should disassemble the module.
• Perform maintenance, modifications, and additions outside the
danger zone.
2.5
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If the product is used as intended, the warranty is valid for 24
months from the date of delivery from the production facility un-
der the following conditions:
• Observe the applicable documents ( 1.2, Page 4)
• Observance of the ambient conditions and operating conditions
( 2.2, Page 5)
Parts touching the workpiece and wearing parts are not part of the
warranty.
Scope of delivery
The scope of delivery includes:
• Pressure maintenance valve SDV-P in the ordered model.
Technical data
Designation
SDV-P 04
SDV-P 07
SDV-P 10
connection [“]
G1/8"
G1/4"
G3/8"
Max. flow [l/min]
200
300
800
Ambient temperature [°C]
Min.
Max.
-10
80
-10
80
-10
80
Weight [kg]
0.1
0.18
0.3
Min. pressure [bar]
2
2
2
Max. pressure [bar]
10
10
10
Pressure drop / hr [bar] *
0.1
0.1
0.1
Reference volume [cm³]
30
100
500
Switching time [s]
0.01
0.01
0.01
Noise emission [dB(A)]
≤ 70
≤ 70
≤ 70
* at defined reference volume and constant temperature [20° C]
Further technical data can be found in the catalog data sheet.
The most recent version applies.
3
4
5
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Risk of injury during assembly!
• Switch off the energy supply.
The values relate to the entire bolting surface.
Requirements for levelness of the bolting surface (Dimensions in mm)
Diameter
Permissible unevenness
< 100
< 0.02
> 100
< 0.05
Fig. 1 Assembly options
1
For cylindrical screw M4 (2x) DIN EN ISO 4762
6
6.1
Check the evenness
of the bolting surface
Mounting
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Observe the requirements for the air supply
( 5, Page 8).
WARNING
Risk of injury during connection!
• Switch off the energy supply.
WARNING
Risk of injury, when removing the air hoses!
• The air hoses at the outputs must be removed carefully , be-
cause they are under pressure even after switching off the
power supply.
Fig. 2 Air connection
Two check valves connected in parallel, each of which opens au-
tomatically the reverse flow direction when a pressure is applied
and thus closes the pressure line.
6.2
Function:
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Further information on the hose-free direct connection contains
the catalog data sheet.
circuit diagram:
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Maintenance and care
12
02.00|SDV-P |en
Troubleshooting
Possible cause
Corrective action
Power loss (pressure loss):
• Check the valve for leaks
• Check the line pressure
Maintenance and care
The Pressure maintenance valve SDV-P is maintenance-free.
If there is leakage or a defect of the mechanical part, sent the
valve with a repair order to SCHUNK.
Repair work may only be carried out by SCHUNK.
7
8
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