SCHUNK SDV-P User instructions

Assembly and Operating Manual
SDV-P / SDV-P-E / SDV-P-E-P
Pressure maintenance valve
Translation of the original manual

Imprint
2 07.00 | SDV-P / SDV-P-E / SDV-P-E-P | Assembly and Operating Manual | en | 389561
Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK SE & Co. KG.
All rights reserved.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 389561
Version: 07.00|24/08/2023|en
Dear Customer,
Thank you for trusting our products and our family-owned company, the leading technology
supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions. Ask
us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
Customer Management
Tel. [phone]
Fax [phone]
[e-mail]
Please read the operating manual in full and keep it close to the product.

Table of contents
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Table of Contents
1 General ............................................................................................. 4
1.1 About this manual............................................................................... 4
1.1.1 Presentation of Warning Labels ..................................................... 4
1.1.2 Applicable documents ................................................................. 5
1.1.3 Variants ................................................................................... 5
1.2 Warranty ........................................................................................... 5
1.3 Scope of delivery................................................................................. 5
2 Basic safety notes ................................................................................ 6
2.1 Intended use...................................................................................... 6
2.2 Constructional changes......................................................................... 6
2.3 Ambient conditions and operating conditions ........................................... 6
2.4 Personnel qualification ........................................................................ 7
2.5 Notes on safe operation........................................................................ 7
2.6 Notes on particular risks ....................................................................... 8
3 Technical data ..................................................................................... 9
4 Description ......................................................................................... 10
5 Assembly............................................................................................ 11
5.1 Mechanical connection......................................................................... 11
5.2 Air connection .................................................................................... 13
6 Operation........................................................................................... 16
6.1 Manual air vent (SDV-P-E, SDV-P-E-P) ..................................................... 16
7 Troubleshooting................................................................................... 17
8 Maintenance and care ........................................................................... 18
9 Translation of the original declaration of incorporation ................................. 19
10 UKCA declaration of incorporation ............................................................ 20
11 Information on the RoHS Directive, REACH Regulation and Substances of Very High
Concern (SVHC) ..................................................................................... 21

General
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1 General
1.1 About this manual
This manual contains important information for a safe and
appropriate use of the product.
This manual is an integral part of the product and must be kept
accessible for the personnel at all times.
Before starting work, the personnel must have read and
understood this operating manual. Prerequisite for safe working
is the observance of all safety instructions in this manual.
In addition to these instructions, the documents listed
under }1.1.2 [/5] are applicable.
NOTE: The illustrations in this manual are intended to provide a
basic understanding and may deviate from the actual version.
1.1.1 Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Dangers for persons!
Non-observance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons!
Non-observance can lead to irreversible injury and even death.
CAUTION
Dangers for persons!
Non-observance can cause minor injuries.
CAUTION
Material damage!
Information about avoiding material damage.

General
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1.1.2 Applicable documents
lGeneral terms of business *
lCatalog data sheet of the purchased product *
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.1.3 Variants
This operating manual applies to the following variations:
lPressure maintenance valve SDV-P
lPressure maintenance valve SDV-P-E (with manual air bleed
screw)
lPressure maintenance valve SDV-P-E-P (for direct mounting
with manual air bleed screw)
1.2 Warranty
If the product is used as intended, the warranty is valid for 24
months from the ex-works delivery date under the following
conditions:
lObserve the applicable documents, }1.1.2 [/5]
lObserve the ambient conditions and operating
conditions, }2.3 [/6]
1.3 Scope of delivery
The scope of delivery includes
lPressure maintenance valve SDV-P / SDV-P-E / SDV-P-E-P in
the version ordered

Basic safety notes
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2 Basic safety notes
2.1 Intended use
The pressure maintenance valve has been designed for
installation in a machine in order to temporarily prevent the
pneumatic consumer from venting through the valve if there is a
loss of air pressure in the supply line. Therefore a temporary
force or position maintenance can be implemented via different
actuators. This is especially useful for grippers where a
mechanical grip force maintence solution is not possible.
lThe product is intended for installation in a machine/
automated system. The applicable guidelines for the machine/
automated system must be observed and complied with.
lThe product is intended for industrial use.
lThe product may only be used and operated within the scope
of the technical data and the specifications in this
manual }3 [/9].
lAppropriate use of the product includes compliance with all
instructions in this manual.
2.2 Constructional changes
Implementation of structural changes
By conversions, changes, and reworking, e.g. additional threads,
holes, or safety devices can impair the functioning or safety of
the product or damage it.
lStructural changes should only be made with the written
approval of SCHUNK.
2.3 Ambient conditions and operating conditions
Required ambient conditions and operating conditions
Incorrect ambient and operating conditions can make the
product unsafe, leading to the risk of serious injuries,
considerable material damage and/or a significant reduction to
the product's life span.
lMake sure that the product is used only in the context of its
defined application parameters, }3 [/9].
lMake sure that the product is a sufficient size for the
application.
lMake 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
environments.

Basic safety notes
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2.4 Personnel qualification
Inadequate qualifications of the personnel
If the personnel working with the product is not sufficiently
qualified, the result may be serious injuries and significant
property damage.
lAll work may only be performed by qualified personnel.
lBefore working with the product, the personnel must have
read and understood the complete assembly and operating
manual.
lObserve the national safety regulations and rules and general
safety instructions.
The following personal qualifications are necessary for the
various activities related to the product:
Trained electrician Due to their technical training, knowledge and experience,
trained electricians are able to work on electrical systems,
recognize and avoid possible dangers and know the relevant
standards and regulations.
Qualified personnel Due to its technical training, knowledge and experience,
qualified personnel is able to perform the delegated tasks,
recognize and avoid possible dangers and knows the relevant
standards and regulations.
Instructed person Instructed persons were instructed by the operator about the
delegated tasks and possible dangers due to improper behaviour.
Service personnel of
the manufacturer
Due to its technical training, knowledge and experience, service
personnel of the manufacturer is able to perform the delegated
tasks and to recognize and avoid possible dangers.
2.5 Notes on safe operation
Incorrect handling of the personnel
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.
lAvoid any manner of working that may interfere with the
function and operational safety of the product.
lUse the product as intended.
lObserve the safety notes and assembly instructions.
lDo not expose the product to any corrosive media. This does
not apply to products that are designed for special
environments.
lEliminate any malfunction immediately.
lObserve the care and maintenance instructions.

Basic safety notes
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lObserve the current safety, accident prevention and
environmental protection regulations regarding the product's
application field.
2.6 Notes on particular risks
The general rule is:
lThe pressure maintenance valve temporarily prevents the
venting of the pneumatic module if there is a loss of air
pressure in the supply line. For this reason it is always
assumed that residual energy is stored in the system.
lTherefore the product must be ventilated before carrying out
any assembly, conversion, maintenance or adjustment work.
Here, it must be checked which module and which function is
triggered by this -> It is necessary to ensure that no person
can be harmed.
lFor all work, secure the product against accidental operation.
lAny hazards that arise for downstream consumers must be
identified separately and protected against by the operator
lOnly qualified personnel may disassemble the product.
lPerform maintenance, modifications, and additions outside
the danger zone.

Technical data
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3 Technical data
Size
SDV-P
04 04-E 07 07-E 10-E
Ambient temperature [°C]
Min.
Max.
-10
80
-10
80
-10
80
-10
80
-10
80
Weight [kg] 0.1 0.1 0.2 0.2 0.4
Flow rate for hose Ø 6 mm [l/
min]
200 200 350 350 400
Flow rate for hose Ø 8 mm [l/
min]
250 250 500 500 1000
Flow rate for hose Ø 10 mm [l/
min]
340 340 600 600 1400
Min. pressure [bar] 2 2 2 2 2
Max. pressure [bar] 10 10 10 10 10
Pressure loss /hrs [bar]* 0.1 0.1 0.1 0.1 0.1
Reference volume [cm³] 30 30 100 100 500
Switching time [s] 0.01 ±0.015 0.010 0.010 0.010
Pressure medium Compressed air, compressed air quality according to ISO
8573-1:2010 [7:4:4]
Noise emission [dB(A)] ≤ 70
Size
SDV-P
64-E-P 80-E-P 100-E-P 125-E-P
Max. flow rate [l/min] 150 150 180 200
Ambient temperature [°C]
Min.
Max.
-10
80
-10
80
-10
80
-10
80
Weight [kg] 0.12 0.16 0.23 0.33
Min. pressure [bar] 2 2 2 2
Max. pressure [bar] 9 9 9 9
Pressure loss /hrs [bar]* 0.1 0.1 0.1 0.1
Switching time [s] 0.01 0.02 0.02 0.03
Pressure medium Compressed air, compressed air quality according to ISO
8573-1:2010 [7:4:4]
Noise emission [dB(A)] ≤ 70
* at a defined reference volume and constant temperature [20° C]
More technical data is included in the catalog data sheet.
Whichever is the latest version.

Description
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4 Description
The SDV-P consists of two check valves connected in parallel,
which open when pressure is applied and reciprocal vent the
return direction.
At a pressure failure of the supply line, the check valves close
and prevent a pressure drop.

Assembly
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5 Assembly
5.1 Mechanical connection
Evenness of the
mounting surface
The values apply to the whole mounting surface to which the
product is mounted.
Edge length Permissible unevenness
< 100 < 0.02
> 100 < 0.05
Tab.: Requirements for evenness of the mounting surface (Dimensions in mm)
Mounting
SDV-P
SDV-P-E
1 Mounting optional:
lM5 screw into thread
lM4 screw for screwing through thread.
2 screws are sufficient for mounting
SDV-P-E-P
Size 64 80 100 125
l
[mm
]
23.5 22 22.5 23

Assembly
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Size 64 80 100 125
x
[mm]
Ø 5.2 Ø 5.2 Ø 6.6 Ø 8.5
1 Centering sleeve SDV-P-E-P
2 Centering sleeve Gripper
The centering sleeves are included in the respective accessory kit
(SDV-P / Gripper).
WARNING
Risk of injury during connection!
lSwitch off the energy supply.

Assembly
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5.2 Air connection
CAUTION
Observe the requirements for the air supply
}3 [/9].
WARNING
Risk of injury during connection!
lSwitch off the energy supply.
WARNING
Risk of injury when removing the air hoses!
lThe air hoses at the outputs must be removed carefully
because even after switching off the power supply they are
still under pressure.
Connections
SDV-P
SDV-P-E
Output
Input
Size 04 07 10
Thread diameter of the air connections G 1/8" G 1/4" G 3/8"

Assembly
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SDV-P-E-P
Output
Input
Input
Size 64 80 100 125
P1 / P2 Main connections (Hose
connection)
M5 M5 G 1/8" G 1/8"
p1 /p2 Hose-free direct connection at
the base
M3 M3 M3 M5
a / b Hose-free direct connection
Gripper
M3 M3 M3 M5
Connection diagram
SDV-P

Assembly
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SDV-P-E
SDV-P-E-P

Operation
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6 Operation
6.1 Manual air vent (SDV-P-E, SDV-P-E-P)
The pressure maintenance valve I in the SDV-P-E and SDV-P-E-P
version is equipped with two buttons to ventilate the product if
necessary (e.g. during servicing).
The connections A, a and B, b can be ventilated separately.
CAUTION
Dust may get into your eyes.
If the compressed air escapes, dust particles can escape the
pressure maintenance valve and irritate your eyes.
lWear protective goggles when carrying out manual
ventilation.
WARNING
Risk of injury from falling workpieces
The gripper fingers can open up and clamped workpieces can fall
out when the pressure maintenance valve is being ventilated
manually.
lEnsure that no danger may arise from the ventilation before
pressing the button.
1. Press button (1) to ventilate connection A, a.
2. Press button (2) to ventilate connection B, b.
ðThe sealed compressed air escapes while the button is being
pressed.

Troubleshooting
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7 Troubleshooting
Possible cause Corrective action
Performance loss (pressure loss): Check seal tightness of the vent
Check line pressure

Maintenance and care
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8 Maintenance and care
The Pressure maintenance valve SDV-P / SDV-P-E / SDV-P-E-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.

Translation of the original declaration of incorporation
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9 Translation of the original declaration of
incorporation
in terms of the Directive 2006/42/EG, Annex II, Part 1 Section B.
Manufacturer/
Distributor
SCHUNK SE & Co. KG
Toolholding and workholding | Gripping technology | Automation
technology
Bahnhofstr. 106 – 134
D-74348 Lauffen/Neckar
We hereby declare that the partly completed machine described below
Product designation: Pressure maintenance valve / SDV-P / SDV-P-E / SDV-P-E-P /
pneumatic
ID number
meets the following basic occupational health and safety of the Machinery Directive 2006/42/
EC:
No. 1.1.1, No. 1.1.2, No. 1.1.3, No. 1.1.5, No. 1.3.2, No. 1.5.3, No. 1.5.4, No. 1.5.6, No. 1.5.8, No.
1.5.10, No. 1.5.11, No. 1.5.13
The partly completed machinery may not be put into operation until it has been confirmed
that the machine into which the partly completed machinery is to be installed complies with
the provisions of the Machinery Directive (2006/42/EC). The declaration shall be rendered
invalid if modifications are made to the product.
Applied harmonized standards, especially:
EN ISO 12100:2010 Safety of machinery - General principles for design -
Risk assessment and risk reduction
The special technical documentation according to AnnexVII, Part B, belonging to the partly
completed machine, has been created.
Person authorized to compile the technical documentation:
Stefanie Walter, Address: see manufacturer's address
Lauffen/Neckar, August 2023 Dr.-Ing. Manuel Baumeister,
Head of Systems Engineering,
Technology & Innovation

UKCA declaration of incorporation
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10 UKCA declaration of incorporation
in accordance with the Supply of Machinery (Safety) Regulations 2008.
Manufacturer/
Distributor
SCHUNK Intec Limited
Clamping and gripping technology
3 Drakes Mews, Crownhill
MK8 0ER Milton Keynes
We hereby declare that on the date of the declaration the following partly completed machine
complied with all basic safety and health regulations found in the
"Supply of Machinery (Safety) Regulations 2008".
The declaration shall be rendered invalid if modifications are made to the product.
Product designation: Pressure maintenance valve / SDV-P / SDV-P-E / SDV-P-E-P /
pneumatic
ID number
The partly completed machine may not be put into operation until it has been confirmed that
the machine into which the partly completed machine is to be installed complies with the
provisions of the "Supply of Machinery (Safety) Regulations 2008".
Applied harmonized standards, especially:
EN ISO 12100:2010 Safety of machinery - General principles for design -
Risk assessment and risk reduction
The special technical documentation according to AnnexVII, Part B, belonging to the partly
completed machine, has been created.
Person authorized to compile the technical documentation:
Marcel Machado, address: refer to manufacturer's address
Lauffen/Neckar, August 2023 Dr.-Ing. Manuel Baumeister,
Head of Systems Engineering,
Technology & Innovation