Walther SMS-15 User manual

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 1 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
Telefon: [phone] Telefax: [phone]
http://www.walther-2000.de –[e-mail]
Assembly Instructions
Manual Spray Valve SMS-15
Article Number: S15-……
NOTE
Please read the Assembly Instructions carefully before first using the incomplete device and
strictly adhere to the instructions!
The incomplete device may only be worked with and worked on by persons who are familiar
with the assembly instructions and the current regulations for industrial safety and accident
prevention.
Keep a translated version of the original Assembly Instructions at a safe place close to the device!
The instructions must be available at all times!

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 2 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
Telefon: [phone] Telefax: [phone]
http://www.walther-2000.de –[e-mail]
Table of Contents
Page
EC DECLARATION OF INCORPORATION ....................................................................................................................... 4
1INTRODUCTION ................................................................................................................................................. 5
1.1 TARGET GROUP OF THE ASSEMBLY INSTRUCTIONS ............................................................................................................ 5
1.2 LIST OF SIGNS AND SYMBOLS ....................................................................................................................................... 5
2SAFETY............................................................................................................................................................... 5
2.1 GENERAL INFORMATION ............................................................................................................................................. 5
2.2 DANGERS FROM RESIDUAL ENERGY............................................................................................................................... 5
2.3 WARRANTY AND LIABILITY........................................................................................................................................... 5
2.4 CORRECT USE ........................................................................................................................................................... 6
2.5 INCORRECT USE ........................................................................................................................................................ 6
2.6 QUALIFICATION OF PERSONNEL ....................................................................................................................................6
3TRANSPORT....................................................................................................................................................... 7
3.1 PACKAGING .............................................................................................................................................................. 7
3.2 TASKS BEFORE TRANSPORT .......................................................................................................................................... 7
4DESCRIPTION OF FUNCTION .............................................................................................................................. 7
4.1 PURPOSE OF THE DEVICE............................................................................................................................................. 7
4.2 TECHNICAL DATA ....................................................................................................................................................... 8
4.3 TYPE LABEL .............................................................................................................................................................. 8
5COMMISSIONING .............................................................................................................................................. 8
5.1 DEFINITION OF INTERFACES.......................................................................................................................................... 8
5.2 MOUNTING AND INSTALLATION .................................................................................................................................... 9
5.3 HOSE MOUNTING...................................................................................................................................................... 9
5.4 CONNECTION DIAGRAM (SEPARATE CONTROLS) ............................................................................................................... 9
5.5 ADJUSTING THE DEVICE .............................................................................................................................................. 9
6OPERATION ..................................................................................................................................................... 10
6.1 GENERAL INFORMATION ........................................................................................................................................... 10
6.2 OPERATING INSTRUCTIONS /OPERATION CONDITIONS.................................................................................................... 10
7TAKING OUT OF SERVICE ................................................................................................................................. 11
7.1 SHORT INTERRUPTION .............................................................................................................................................. 11
7.2 LONG-TERM INTERRUPTION....................................................................................................................................... 11
7.3 FINAL SHUTDOWN OF DEVICE .................................................................................................................................... 11
8MAINTENANCE AND REPAIR ............................................................................................................................ 11
8.1 GENERAL INFORMATION ........................................................................................................................................... 11
8.2 CLEANING .............................................................................................................................................................. 11
8.3 MAINTENANCE FOR OPERATION IN COLOR MARKING SYSTEMS (NORMAL OPERATION).......................................................... 12
8.4 REPLACING NEEDLE (POS.1.6), AIR VALVE (POS.4.0) AND NOZZLE (POS.1.1).................................................................. 12
8.5 REPLACING THE SEALING SCREW (POS.3.0) ................................................................................................................. 12
8.6 INSERTING THE O-RINGS........................................................................................................................................... 13
8.7 SPARE PARTS .......................................................................................................................................................... 13
8.8 CUSTOMER SERVICE /SUPPORT..................................................................................................................................13
9TROUBLESHOOTING ........................................................................................................................................ 13
9.1 GENERAL INFORMATION ........................................................................................................................................... 13
9.2 FAILURE:NOZZLE NEEDLE DOES NOT OPEN.................................................................................................................... 13
9.3 SPRAY IMAGE/TYPE OF DEFECT .................................................................................................................................. 14
10 APPENDIX........................................................................................................................................................ 15
10.1 DIMENSIONED DRAWING WITHOUT NOZZLE EXTENSION............................................................................................. 15
10.1.1 Spare Part Drawing .............................................................................................................................. 16

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 3 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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10.1.2 Spare Part List....................................................................................................................................... 17
10.2 NOZZLE EXTENSION............................................................................................................................................. 17
10.3 ACCESSORIES ..................................................................................................................................................... 18
10.4 DATA SHEET MICRO SWITCH 97190003 ................................................................................................................ 18

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 4 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
Telefon: [phone] Telefax: [phone]
http://www.walther-2000.de –[e-mail]
EC Declaration of Incorporation
in accordance with EU Machinery Directive 2006/42/EU, dated 17 May 2006, Appendix II B
We herewith confirm that the below mentioned incomplete device meets the basic requirements for safety
and health as stated in EU Machinery Directive 2006/42/EU for its design and construction as well as for the
configuration released by us on the market. This machine component will not be operated before it has been
determined that the incomplete system where the machine component will be installed also meets the
requirements of the Directive (2006/42/EG).
Manufacturer Walther Systemtechnik GmbH
Hockenheimer Straße 3
D- 76726 Germersheim
Description Hand-Spray Valve, Article-No. S15-……
We also declare the conformity with other, product-relevant directives/guidelines:
Mach. Direct. 2006/42/EU App. I, Clause: 1.1.2, 1.1.3, 1.1.5, 1.1.6, 1.3.2, 1.3.3,
1.3.4, 1.5.8, 1.5.9
EMC- Directive 2014/30/EU, dated 26. February 2014
Applied harmonized standards, in particular:
DIN EN ISO 12100 Safety of Machinery –General Design Principles –
Risk Assessment and Risk Reduction (ISO
12100:2010)
In addition, we also confirm that the special documentation according to Appendix VII Part B has
been prepared.
The manufacturer, respectively his authorized representative obligates himself to submit this documentation
to the market surveillance authorities, if requested.
This EC Declaration of Incorporation becomes invalid if the incomplete device will be altered or changed
without consent of Walther Systemtechnik GmbH.
Authorized representative for Technical Documentation:
Stefan Hirl, Hockenheimer Straße 3, D- 76726 Germersheim
Germersheim, 19 April 2016
(Place, Date) (Stefan Hirl, Management)

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 5 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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http://www.walther-2000.de –[e-mail]
1 Introduction
1.1 Target Group of the Assembly Instructions
Operating Personnel
Maintenance Personnel
1.2 List of Signs and Symbols
The assembly instructions warn users of operations which may put their health at risk.
The warnings are indicated by combinations of text and symbols as follows:
DANGER
Describes a potentially dangerous situation.
Death, grievous bodily harm or severe material damage WILL occur if the respective
measures of precaution have not been taken
WARNING
Describes a potentially dangerous situation.
Death, grievous bodily harm or severe material damage MAY occur if the respective
measures of precaution have not been taken.
CAUTION
Describes a potentially dangerous situation.
Slight injuries CAN occur if the respective measures of precaution have not been
taken. This signal word is also used to describe possible property damages.
IMPORTANT
Indicates tips for usage and other particularly useful information.
No dangerous situation.
2 Safety
2.1 General Information
The construction of this device is according to the latest technology and is absolutely reliable. The individual
components as well as the complete device are continuously checked by our quality management.
2.2 Dangers from Residual Energy
Please instruct the operating personnel on the respective measures to be taken against the occurrence of
mechanical, hydraulic, pneumatic and electric / electronic residual energies.
2.3 Warranty and Liability
According to the conditions laid down by the German Engineering Association (VDMA), Walther Sys-
temtechnik GmbH has a guarantee of 12 months under normal European operating conditions on its own
parts (spare parts are excluded); or according to the conditions of the manufacturer.
This guarantee can only be granted by Walther Systemtechnik GmbH, if:
the user has thorough knowledge of the content of the assembly instructions;
the user follows the instructions and notes contained in the assembly instructions;
the user does not rebuild or make changes on parts of the device without prior consent of WST Sys-
temtechnik GmbH.

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 6 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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2.4 Correct Use
This device is a needle valve and will be used for processing materials which can be sprayed in continuous
or intermitting operation. Under no circumstances shall aggressive media such as acids, alkaline solutions,
detergents, chemicals or others be sprayed. If you are not sure, please contact the manufacturer if a certain
spray medium is suitable for this device.
2.5 Incorrect Use
Operating the device with insufficient knowledge about the operation, maintenance and care of the de-
vice.
Making changes, extensions or alterations on the device that may hamper its safety without the prior
consent of Walther Systemtechnik GmbH.
Operating the device with defective safety installations or not properly attached or malfunctioning safety
devices.
Using unsuitable materials.
Handling the device while energized
2.6 Qualification of Personnel
Only trained and instructed personnel may conduct work on the equipment.
The responsibilities of the personnel for assembly work, operation, repair work or maintenance work must be
clearly assigned to individuals!
Persons in training may work with the equipment only under supervision of an experienced person.
Personnel
Task
Instructed
Personnel
Personnel with Technical
Qualification
Specialist
Supervisor
Packaging, Transport
X
-
-
-
Commissioning
X
X
-
Operation
X
-
Troubleshooting, general
X
X
-
Troubleshooting
mechanical
-
X
-
-
Troubleshooting electrical
-
-
X
-
Setting up
-
X
-
-
Maintenance
-
X
-
-
Repair
-
X
X
-
Taking out of service,
Storage
-
X
X
-

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 7 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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http://www.walther-2000.de –[e-mail]
3 Transport
3.1 Packaging
The type of packaging depends on the individual mode of shipping. If not separately contracted, the
packaging is in accordance with the rules and regulations of Walther Systemtechnik GmbH. This rule is in
accordance with the Federal Association for Packaging HPE.
3.2 Tasks before Transport
The following has to be done before transport:
Disconnect all power lines.
The actual transport of the incomplete device and its individual parts requires special care in order to prevent
damages from external forceful impact or careless on- and off-loading. Depending on the mode of
transportation, suitable transport and load securing has to be selected. The incomplete device will be aligned
and leveled by appropriate fastening elements.
4 Description of Function
4.1 Purpose of the Device
CAUTION
The use of other media can cause functional failures, damages or even the destruction
of the device.
The spray valves of SMS-15 series are suitable for the application of liquid up to viscous media, such as
grease, oil, abherents, colors or glues. Major characteristics of the hand-spray valve are the steplessly ad-
justable spray width as well as the integrated spray air valve for pre- and post-spray. And depending on the
viscosity of the applicable medium, the application image can be adjusted individually via the nozzle size or
the atomized air pressure or also the material pressure. Three different hoses are supplying atomized air,
control air and medium.
Spray valve SMS-15 is a pneumatically controlled application device. The air valve (Pos.4.0) is connected
with the needle (Pos.1.6) and receives air supply from the optional 3/2-way magnetic valve. This results in
the opening movement of the air valve (Pos.4.0) so that atomizer air is released (pre-spray). The spring
(Pos.4.4) has to be completely compressed before the air valve (Pos.4.0) will move the needle (Pos.1.6),
and then the material will be discharged from the nozzle. When the control air is turned off or fails, the spring
(Pos.5.0) will initiate the closing movement of the needle; first the needle closes the nozzle and after that the
air valve (post-spray) is locked. Pre- and post-spray are required for keeping the nozzle (Pos.1.1) clean.
The material supply pressure (1/8” connection – Pos.2.3) has to be adapted to the desired spray image and
also to the atomizer air pressure (M5 connection “ZL” – Pos.2.4).
Spraying can be performed as continuous or intermittent. The control air pulses (M5 connection “SL” –
Pos.2.4) will be directed to the working piston via the 3/2-way magnetic valve (optional).
Depending on the individual area of operation, the control air pressure has to be adapted to the operating
cycles.

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 8 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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4.2 Technical Data
General Data
Dimensions [mm]
ca.118,5 x 35 x 22
Weight [g]
ca. 500
Energy Supply
Control Air Pressure [bar]
4.5 –6
Atomizer Air Pressure [bar]
0.5 –5 (at least 0.5 bar less than control pressure)
Material Pressure [bar]
max. 35 bar
4.3 Type Label
The type label was etched into the casing near the material connection. The serial number is hammered into
this label.
5 Commissioning
5.1 Definition of Interfaces
Connect. control air "SL"
Connection atomizer air "ZL"
Raster-needle adjustment
Right turn: smaller quantity
Left turn: larger quantity
Material connect.
Release button for
way-valve
(optional)
Retainer bracket

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 9 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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5.2 Mounting and Installation
The valves can be installed in any position. The distance to the application area depends on the desired
application width. You can use round and flat-jet caps. An intermitting operation of the device will cause
natural oscillations; therefore a solid installation is most important. Try to avoid excessive natural oscillations
(transmission from device to valve).
5.3 Hose Mounting
There are three functional hoses which will be connected as follows (see definition of interfaces):
1. Atomizer air (blue) to ZL M5 –connection "ZL" - Pos. 2.4
2. Control air (black) to SL M5 –connection "SL" - Pos. 2.4
3. Material (transparent) to M 1/8"-connection "M" - Pos. 2.3
5.4 Connection Diagram (separate controls)
5.5 Adjusting the Device
The stroke adjustment of the needle will be used for setting the material quantity. A left turn of the raster-
needle locking screw will increase the material quantity. A finely ascending precision thread results in a nee-
dle stroke which changes 0.5mm with one turn of the raster head.
IMPORTANT
The maximum turn of the raster-needle locking screw anti-clockwise should not exceed
the noticeable raster steps. This will already exceed the maximum needle stroke ad-
justment.
If you continue turning, the raster-needle locking screw will be dislocated!
IMPORTANT
Nozzle and nozzle needle can be damaged by wrong treatment. Only reduce the mate-
rial flow with emerging material (right turn of adjusting screw). Do not turn adjusting
screw further to the right after closing of the nozzle!
Controls not included in
scope of delivery

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 10 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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6 Operation
6.1 General Information
This device may only be operated if the safety-related equipment is permanently effective and not suspend-
ed during operation or altered in its intended effectiveness.
IMPORTANT
Please do strictly observe the following information for the set-up of devices!
Each spraying valve must be equipped with its own pressure regulator for atomizing air.
In case several spraying valves are supplied by one and the same material pressure tank, these
valves must not spray simultaneously.
The supply route for the material between material pressure tank and spraying valve must not exceed
2 m.
If the pause time is a multiple of the spray time, the valve must be sprayed free in a separate location
or the spray valve should be operated several times to optimize the application.
After standstills of 15 min. and more, the valve must be sprayed free by pressing the switch 3 to 5
times.
6.2 Operating Instructions / Operation Conditions
CAUTION
Never point the jet at people. The wearing of eye protection is strongly recommended.
The spraying process can create noise depending on the air and fluid pressures used.
Ear protection should be worn, if required.
WARNING
Danger caused by flammable, harmful fluid. Always follow the safety instructions on the
container or the safety data sheet for the fluid.
Spray valves of the SMS-15 series generally operate with a control pressure of 4.5 - 6 bar. The atomizer
pressure has to be lower than the material pressure in order to avoid a repulse of the material. Atomized air
pressure and material pressure should be closely correlated. In case high material pressures are required,
make sure that the accident prevention regulations of the trade associations will be strictly followed.
The application can be controlled as intermitting or continuous. Depending on the individual use, the control
pressure has to be adjusted to the set switching frequency on the one hand and to the higher or lower
material pressures on the other. Under appropriate operating conditions (material pressure, control pressure,
needle stroke, and short supply lines) a total of 50 strokes per second can be reached.
IMPORTANT
A device-specific set-up is required for an optimum adjustment of the application im-
age. Basic results from lab tests can be used. Of course, these may have to be adjust-
ed for the individual device. The parameters nozzle size, opening time, opening stroke,
material pressure and if required, also temperature have to be combined.
For longer standstills, the material can remain in the valve, if it remains under pressure (no contact to outside
air).

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 11 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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7 Taking out of Service
7.1 Short Interruption
A short interruption (15 min and more) will always be followed by a clean-spraying.
IMPORTANT
Please follow the operating instructions!
7.2 Long-term Interruption
The following will be observed for a long-term interruption of the device/machine:
Depressurize material supply lines
Clean nozzle (1.1) with a special thinner and a soft cloth. Make sure that no cloth fibers are left on the
nozzle tip.
IMPORTANT
Please observe the maintenance instructions!
7.3 Final Shutdown of Device
The following is important for a shutdown of the machine / device:
Clean spray valve with a special thinner.
IMPORTANT
Please observe the maintenance instructions!
8 Maintenance and Repair
8.1 General Information
CAUTION
Before starting any maintenance or repair work, ensure that all air-operated tools are
depressurized and disconnected from the air supply.
Before opening the spray valve it must be disconnected from the air and fluid supply.
Otherwise, ejected components can cause injuries.
The spray valves of the SMS-15 series are high-quality precision devices which will not fail if treated
correctly and will operate almost maintenance-free. All mobile parts should be regularly oiled and also the
threads should be greased when the nozzles are cleaned or exchanged. Always keep clean and observe
minimum instructions to maintain a long life of the valve. Always use clean and filtered material only. The
control air must also be clean and slightly oiled, if necessary. Maintenance also depends on the individual
operating conditions and the type of media used.
8.2 Cleaning
Only use soft brushes for outside cleaning of the nozzle tips. Never use metal tools with sharp edges.
Wash equipment thoroughly after use to remove residues and dirt, especially if the nozzle needle (Pos.1.6)
has to be exchanged.

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 12 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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8.3 Maintenance for Operation in Color Marking Systems (normal operation)
The spray cap will be cleaned every other day with a special thinner and a soft cloth. Make sure that no cloth
fibers are left on the nozzle tip.
The material section of the spray valve should be cleaned with a special thinner every other week. Please
observe the following steps:
Completely open needle lock (remember raster setting for later use!)
Remove air cap and unscrew nozzle with a SW 6 open wrench
IMPORTANT
Hold spray valve downwards so that no medium can flow into the air channels. Dis-
charged medium will be collected in a container and disposed of later.
Clean with a soft (paint-)brush and a special thinner.
Re-assemble nozzle and air cap after cleaning.
Re-set the raster-needle setting
A cleaning cycle will be initiated after standstills (e.g. breaks over night or on weekends). The nozzle will be
sprayed clean. This cleaning cycle will be activated through the system controls.
IMPORTANT
Use a dummy or a cloth during the cleaning cycle in order to avoid soiling!
After longer system standstills (e.g. 2-3 weeks), the complete system will be cleaned before re-start. If nec-
essary, the material hoses and if applicable, also the inlays of the pressure tank have to be replaced.
The material pressure container will be opened every week and the color will be thoroughly stirred (if no agi-
tator is provided).
The material pressure container will be cleaned every 3-4 months; material lines and inlays will be
exchanged.
8.4 Replacing Needle (Pos. 1.6), Air Valve (Pos. 4.0) and Nozzle (Pos. 1.1)
Completely unscrew raster-needle lock (Pos.6.0). Unscrew nozzle extension (Pos.2.1 resp. 2.2) with retainer
ring (Pos.2.1). Unscrew nozzle (Pos.1.1). Carefully push needle (Pos.7.0) with air valve (Pos.4.0) from the
nozzle side to the back and carefully extract with a pair of tongs. Install new parts which are slightly greased
in reverse order. We do not recommend reusing previously employed needles. Leakages can be caused if O-
rings (Pos.3.1) are pinched by needles which are not completely clean.
8.5 Replacing the Sealing Screw (Pos. 3.0)
Unscrew raster-needle lock completely (Pos.6.0). Remove nozzle extension (Pos.2.1 resp. 2.2) with retainer
ring (Pos. 2.1). Unscrew nozzle (Pos.1.0). Carefully push needle (Pos.7.0) with the air valve (Pos.4.0) from
the nozzle side to the back and carefully extract with a pair of tongs. Then use a screwdriver SW11 to un-
screw the sealing screw (Pos.3.0) from the thread.

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Assembly Instructions - Hand-Spray Valve SMS-15
Page 13 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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8.6 Inserting the O-Rings
If you do not have a complete air valve (Pos.4.0) available as replacement, you have to remove the old
gaskets and replace them by new ones. Slightly grease the O-ring holders with a lubricant (technical
petrolatum). First you insert the O-ring (Pos.4.5) into the back groove (only use dulled tools to avoid
damaging the O-ring). Then insert the O-rings (Pos.4.1, Pos.4.2 and Pos.4.6) into the outer grooves.
If you do not have a complete sealing screw (6.0.0) with integrated material sealing kit (5.0.0) available as
replacement, you have to remove the old gaskets and replace them by new ones.
For this purpose, you have to clean the sealing screw so that no residues from sprayed medium will hamper
the installation of the new gaskets. Slightly grease the O-ring holders with a lubricant (technical petrolatum).
First insert the O-ring (Pos.3.1) into the back boring to the bottom of the sealing sleeve (only use dulled tools
to avoid damaging the O-ring). Then insert the O-ring (Pos.3.1) into the front groove. Carefully insert the
outer O-rings (Pos.3.2 and Pos.3.3) into the grooves. Slightly grease the complete sealing screw (Pos.3.0)
and move it back into the main body (Pos.4.0). After that screw the sealing screw into the thread (slightly
tighten).
8.7 Spare Parts
IMPORTANT
Only use original spare parts from the manufacturer!
Wrong or defective spare parts from other manufacturers can damage the device. If
other than original spare parts of the manufacturer will be used, all obligations from the
manufacturer or his sales partners, such as guarantees, service contracts etc will be
forfeited without further notice.
8.8 Customer Service / Support
Walther Systemtechnik GmbH
Hockenheimer Straße 3
D-76726 Germersheim
Germany
Phone ++49(0)7274-7022-0
Telefax ++49(0)7274-7022-91
Email [e-mail]
Internet www.walther-2000.de
9 Troubleshooting
9.1 General Information
IMPORTANT
First check all supply lines for connection and serviceability.
In case of serious problems that cannot be resolved, please contact the Walther Systemtechnik GmbH
customer service.
9.2 Failure: Nozzle needle does not open
Check electrical power supply at magnetic valve (slight clicking sound).
Check control air pressure (should be 5 - 6 bar).
Check if O-ring (Pos. 4.5) or O-ring (Pos. 4.6) is damaged.
Check if nozzle needle (Pos. 1.6) is sticky within the sealing screw (Pos. 3.0).
Check if needle stroke is correctly set.

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 14 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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9.3 Spray Image/ Type of defect
SPRAY IMAGE
PROBLEM
CAUSE
ACTION
Normal Spray Image (Flat jet)
Normal Spray Image (Round jet)
Spray image shaped
too much
upwards and
downwards
Soiled
air cap
Soiled
nozzle
Clean nozzles
Spray image too much
left-sided or right-sided
Soiled
air cap
Soiled
nozzle
Clean nozzles
Heavy application in the
middle of the spray image
Too much material
Material too thick
Reduce
material supply
Dilute material
Split
spray image
Too little material
Pressure flat jet too
high
Increase
material supply
Increase pressure
for round jet

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 15 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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10 Appendix
10.1 Dimensioned Drawing without Nozzle Extension

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Assembly Instructions - Hand-Spray Valve SMS-15
Page 16 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
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10.1.1 Spare Part Drawing
1.1
1.2
1.3
2.1
1.4
1.5
2.2
2.4
2.3
3.1
3.2
3.3
3.4
3.1
4.1
4.2
4.3
4.4
4.5
4.6
1.6
5
6.1
6.2
6.3
6.4
7
8
8
9
10
11
10
IMPORTANT
If the spray valve is equipped with a nozzle extension, the nozzle (1.1) and the nozzle
needle (1.6) will be custom-made.
Please ask for order numbers of nozzles and nozzle needles separately when ordering
spare parts. Please do not request order number of the standard version!

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Assembly Instructions - Hand-Spray Valve SMS-15
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Walther Systemtechnik GmbH –D 76726 Germersheim
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10.1.2 Spare Part List
Pos.
Article-No.
Qty
Description
1.0
97……..-
1
Nozzle extension with nozzle needle
1.1
97210213
1
Screw-in nozzle for circular jet, complete
1.2
97850373
1
Outer tube
1.3
97640039
1
O-ring / Viton®
1.4
97220197
1
Adapter for outer tube
1.5
97851275
1
Inner tube with adapter
1.6
1
Nozzle needle integrated into nozzle extension
2.0
97511061
1
Main body, complete
2.1
97410028
1
Retainer ring
2.2
97511284
1
Main body, complete
2.3
97220139
1
Reducing screwed joint, stainless steel
2.4
97220288
2
Plug-in nipple, brass
3.0
97810103
1
Sealing screw, complete
3.1
97640026
2
O-ring / Viton®
3.2
97640019
1
O-ring / Viton®
3.3
97640052
1
O-ring / Viton®
3.4
97640415
1
O-ring / Viton®
3.5
97810102
1
Sealing screw
4.0
97380052
1
Air valve, complete
4.1
97640194
1
O-ring / Viton®
4.2
97640027
1
O-ring / Viton®
4.3
97380051
1
Air valve
4.4
97820099
1
Pressure spring
4.5
97640022
1
O-ring / Viton®
4.6
97640007
1
O-ring / Viton®
5.0
97820097
1
Pressure spring
5.1
97820044
1
Reinforced pressure spring
6.0
97900021
1
Raster-needle lock
6.1
97620017
1
Securing disk
6.2
97320098
1
Cable end ferrule
6.3
97220291
1
Raster locking screw
6.4
97610093
1
Needle stroke raster button
7.0
97511060
1
Handle body
8.0
97610011
2
Cylinder screw with internal hex head
9.0
97190003
1
Micro switch
10.0
97610005
2
Cylinder screw with slot
11.0
97910340
1
Hanging strap
10.2 Nozzle Extension
Nozzle Extension with Nozzle Needle
Description
97D8V093K802001
Nozzle extension, needle-sealing, NL 93mm, Model D8,
Nozzle 0.8mm KLS; stainless steel
97230979
Nozzle extension, needle sealing, NL 94 mm, Model D6; 45°;
stainless steel

Rev. 1.1
Assembly Instructions - Hand-Spray Valve SMS-15
Page 18 of 18
Walther Systemtechnik GmbH –D 76726 Germersheim
Telefon: [phone] Telefax: [phone]
http://www.walther-2000.de –[e-mail]
10.3 Accessories
Figure
Article Number
Description
979444
Cleaning set
(see also Product catalog ACCESSORIES)
10.4 Data Sheet Micro Switch 97190003