SCHUNK SDV-P Gebrauchsanweisung

Translation of the original manual

Pressure maintenance valve

SDV-P

Assembly and Operating Manual

Superior Clamping and Gripping

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Imprint

2 02.00|SDV-P |en

Imprint

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

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

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

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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

1.2

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Basic safety notes

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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.

2.1

2.2

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Basic safety notes

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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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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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Technical data

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Warranty

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

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.

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Assembly

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Assembly

Mechanical connection

WARNING

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

6.1

Check the evenness

of the bolting surface

Mounting

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Assembly

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Air connection

NOTICE

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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