Zator MZK4 KVNR Series Operating instructions

elettropneumatic valve
USER AND
MAINTENANCE
MANUAL
gluing
soluons
MZK

USER AND MAINTENANCE MANUAL
MZK_v04
MARCH 2021
ZATOR SRL
Via Galvani, 11
20095 Cusano Milanino (MI)
Italy
Tel. [phone]
Fax [phone]
[e-mail]
www.zator.it

DECLARES
Under its responsibility that the electropneumac valve:
Legal RepresentaveCusano Milanino
Is in compliance with UE direcves, with relaon to the following ones and/or parts of them applicable
to this product:
• Direcve 2006/42/CE of European Parliament and Council of the 17th of May 2006 regarding to
machines and that modify direcve 95/16/CE (recasng)
• Direcve 2014/35/UE of European Parliament and Council of the 26th of february 2014 regarding
the harmonizaon of the UE Countries laws about the the making available on the market of
electrical equipment intended to be used within certain voltage limits (recasng)
• Direcve 2014/30/UE of European Parliament and Council of the 26th February 2014 regarding
the harmonizaon of the UE Countries laws about the electromagnec compability (recasng)
Model MZK Code
Serial Number Year of manufacture
UE Declaraon of Conformity
Manufacturer:
ZATOR Srl
Via Galvani 11
20095 Cusano Milanino (MI)
Italy
Tel.[phone]
Fax [phone]
Email: [e-mail]

1GENERAL INFORMATION 8
1.1 Introducon 8
1.2 Warranty 9
1.3 Warranty restricons 10
1.4 Maintenance service request 11
1.5 Spare parts request 11
2SAFETY RULES AND REGULATIONS 12
2.1 Safety and environment general informaons 13
2.2 P.P.E. Personal protecve equipment 13
2.3 Risks, protecons, warnings and cauons 14
2.3.1 General safety 14
2.3.2 Unavoidable dangers and risks unavoidable 15
2.3.3 Safety devices adopted 16
2.3.4 More general safety precauons 16
2.4 Environmental condion 17
2.5 Installaon - General instrucons 18
2.6 Use of adhesives, glues or other uids 19
3TECHNICAL DESCRIPTION 20
3.1 Valve funcons 20
3.2 Technical data 20
3.3 Funconing descripon 21
4INSTALLATION 22
4.1 Fixing of the valve 22
4.2 Contact-less gluing applicaon 22
4.3 Contact gluing applicaon 23
4.4 Fluid supply connecon 23
4.5 Electrical connecon 23
4.5.1 Connector 24
4.6 Drive air connecon 24
4.7 Installaon diagram 24
Index

5VALVE ADJUSTMENTS 25
5.1 Fluid quanty adjustment 25
5.2 Needle travel adjustment 25
5.2.1 Screw adjustment version 25
5.2.2 Micrometric adjustment version 26
6MAINTENANCE 27
6.1 General norms 27
6.2 Maintenance program 27
6.3 Cleaning and/or replacement of the nozzle 28
6.4 Valve disassembly 29
6.5 Valve assembly 32
7TROUBLE SHOOTING 35
8MODELS 36
9PART LIST 38
10 DIMENSIONS 40

USER AND
MAINTENANCE MANUAL
elettropneumatic valve MZK

USER AND MAINTENANCE MANUAL
ELECTROPNEUMATIC VALVE MZK
8
This manual is an essenal part of the electropneumac valve and is desned to trained and well-informed
personnel, which is aware of the machine performance at the risk condions to which it may be exposed.
This document supposes that in the plants where the valve is desned, are complied the present norms
of safety and hygiene of the work.
Zator Srl won’t be liable for acons or improper connecons made by unqualied and unformed
personnel.
Instrucons, drawings and documentaon contained in this manual are of reserved technical disposion,
only for Zator Srl property and may be not reproduced in any way, neither in full or parally reproducon;
not translated into another language, or transmied in any electronic or mechanical means or form,
without wrien permission of Zator Srl.
The data and values expressed in the manual are approximate and variable depending on uids,
applicaons and methods of use.
Zator Srl doesn’t assume any responsibility regarding the accuracy of the contents of this manual.
The drawings and technical data in this document is updated to the date of their publicaon and Zator
Srl reserves the right to change, without noce, the contents of this manual.
It is therefore forbidden for Technician and Operators of the maintenance to use this manual for dierent
purposes from those relaves to the care and maintenance of equipment in queson.
This manual includes the installaon, use and maintenance norms of the electropneumac valve in safety.
Test in producon workshop
The manufacturer guarantees the valve, that this document refers, has been inspected and tested by his
producon workshop.
“At term of law we reserve the property of the data and technical informaon with the prohibion of play,
communicate to third pares or use them anyway for any other execuve purpose and what is shown in
this document is the property of the Manufacturer”
1GENERAL INFORMATION
1.1 Introduction

SECTION 1 - GENERAL INFORMATION
9
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
This warranty is valid for 12 months from the actual delivery.
During the warranty period Zator Srl is undertakes to remove in the necessary me the obvious faults and
aws of material and/or producon, on condion that machine or equipment has been used properly,
according to the best rules of behaviour and maintenance provided in this manual.
The awed parts under warranty are xed or replaced free from Zator Srl in the me compably necessary,
understood that the Zator Srl is exempted from each responsibility for any tle, while the buyer give up to
ask damages or costs, including those resulng from the temporary not use of the purchased machinery
for all the me is necessary to put it back in eciency; The transport and/or the forwarding costs, the
outward and the return trip costs relave to the operaon by the Zator’s technicians in the Buyer address
are always on charge of the buyer.
The labor costs relave to the operaon of the Zator’s technicians in the Buyer address for the removal of
awed parts under warranty, are on charge of Zator Srl, except these cases when the nature of the aw
can be easily removed on place by the Buyer.
This commitment of Zator Srl excludes each other warranty eects provided by the law.
The warranty for the replaced or repaired spare parts of the electropneumac valve nishes the same
day of the warranty expiraon date of the electropneumac valve, the replaced part warranty however
doesn’t has lifeme less than three months aer its installaon.
Replaced parts during the warranty period by the seller are free acquired in the same place with new
parts.
Are excluded from the warranty all the tools and consumable materials, possibly supplied by Zator Srl
with the machine.
It are excluded and renounced by the buyer every pretensions of items/people damages reimbursement
on charge to Zator Srl, for any tles, even if the damages were depending from manufacture or material
aws. It’s of equal excluded and given up any reimbursement for people and/or items damages depending
on the pracse of the electropneumac valve. Parts replaced free remain of Zator Srl property.
Elapsed the warranty period every operaon will be on charge to the buyer.
Applicaon elds
• Packaging machines
• Paper converng industry
• Prinng machines
• Tobacco industry
• Assembly industry
• Food industry
1.2 Warranty

USER AND MAINTENANCE MANUAL
ELECTROPNEUMATIC VALVE MZK
10
Condemnaon of conformity aw - Goods recepon
The original conguraon of the electropneumac valve never must be changed.
On goods recepon, check that:
• The packaging is intact
• The exact correspondence of the commissioned material
In case of damages or wrong delivery contact immediately Zator Srl.
The buyer, on penalty of warranty decadence, must report in wring the aw conformity or fault of
the electropneumac valve to the seller, specifying in detail the nature, within eight days from their
discovery.
In no case the condemnaon of conformity aw or fault may be validly made aer the expiraon date of
the warranty terms.
Also the buyer decays from the warranty if doesn’t allow each reasonable control that the seller requires.
It’s excluded from this warranty the most damage caused to the machine by the failure mely
condemnaon to the seller of a conformity aw or fault of the the electropneumac valve.
This warranty is only valid for products of new construcon.
This warranty is limited to the reparaon or replacement, by the seller, of each parts of the machine or
supplied material that results awed, aer checking the existence of the aw.
In no case the seller will be liable for every consequenal or indirect aws or otherwise derived from
producon cycle interrupon or machine stoppage.
The seller is not liable for aws of the electropneumac valve derived from the use of devices, equipments,
etc. that are enquired and provided by the customer and installed on the machine to change its use
compared to the original design.
The seller is not liable for every conformity aws of the electropneumac valve or faults owed for the
normal wear of those parts that, by their nature, are subject to rapid and connuous wear.
The seller also is not liable for damages resulng from improper use of the equipment and from the non-
observance of the norms expected for the execuon of the ordinary periodic maintenance.
The seller is not liable for conformity aws of the electropneumac valve or faults that depends on
changes, reparaons, alteraons or tampering aributed to the buyer and however non-authorized
personnel of the buyer.
The costs relave to the wear materials necessary for test and restart the electropneumac valve are on
charge of the buyer.
1.3 Warranty restrictions

SECTION 1 - GENERAL INFORMATION
11
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
Contact:
Technical oce of Zator S.R.L.
Via Galvani 11 - 20095 Cusano Milanino (MI) - Italy
e-mail: [e-mail] www.zator.it
Tel.: [phone] Fax.: [phone]
Always forward the request in wring (fax or email) and give all the informaon to idenfy the machine
object of the request:
• Model
• Serial number
Please refers to the fronspiece of this manual or directly to the nameplate on-board to the machine or
to the serial number of the electropneumac valve.
The customer is responsible to purchase original spare parts that guarantee him to keep ecient and
safe the electropneumac valve.
The disassembly and assembly operaons must be performed according to the manufacturer’s
instrucons.
Contact the Technical Oce of Zator Srl which will give to you the specicaons to do the request of the
parts and will provide the informaon about their replacement.
To order the spare parts is necessary to report completely all idencaon data of the electropneumac
valve and those of spare part to be replaced.
The illustraons in this document are for example.
1.4 Maintenance service request
1.5 Spare parts request

USER AND MAINTENANCE MANUAL
12 ELECTROPNEUMATIC VALVE MZK
The electropneumac valve MZK is designed and manufactured in compliance with the current safety
standard. Only trained personnel is authorized to install and use the valve. For the electropneumac
valve MZK are provided only and exclusively the applicaon elds describe in this manual. All data and
parameters indicated in this manual must be respected. Any other use is considered improper.
All operaons performed with the electropneumac valve MZK must be carry out in compliance with the
following current safety rules and regulaons wrien in part:
1. Rules of re prevenon
2. Direcve 2006/42/CE of European Parliament and Council of the 17th of May 2006 regarding to
machines and that modify direcve 95/16/CE (recasng)
3. Direcve 2014/30/UE of European Parliament and Council of the 26th February 2014 regarding the
harmonizaon of the UE Countries laws about the electromagnec compability (recasng)
4. Rule 2016/425/UE of the 9th of March 2016, about the personal protecon equipment and that
abrogates the direcve 89/686/CEE of the Council
2SAFETY RULES AND REGULATIONS

SECTION 2 - SAFETY RULES AND REGULATIONS
13
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
Before the start-up of the electropneumac valve the personnel must be adequately informed and trained
on its use, direcon and start-up process, as well as the safety norms to be performed and also observe
how it is prescribed in this document and in other documents possibly aached to the microprocessor
control.
The employer must provide to instruct the personnel on the risks of injury, on safety devices and accident
prevenon general rules provided by the community direcves and the legislaon of the country where
the microprocessor control is installed.
For personnel who will work on the electropneumac valve, for any funcons (installaon, assembly,
demolion, maintenance and operaon) they will be provided with appropriate P.P.E. - Personal protecve
equipment of type approved and cercate by C.E.:
• an-solvent gloves
• cut resistant gloves
• masks
• coverall (no oang coverall)
CAUTION: Always disconnect the power supply before proceed to carry out any maintenance
or adjustment operaons.
Discharge the uid pressure before to proceed to carry out any maintenance or adjustment
operons.
CAUTION: The clothes of who will operate on the electropneumac valve for any funcons must
be in compliance with the essenal safety requirements dened by the community Direcves
89/656/CEE and 89/686/CEE and to the actual laws in the country.
2.1 Safety and environment general informations
2.2 P.P.E. Personal protective equipment

USER AND MAINTENANCE MANUAL
14 ELECTROPNEUMATIC VALVE MZK
2.3 Risks, protections, warnings and cautions
In accordance with the Machine Direcve it means for:
DANGER ZONE = area within or near the electropneumac valve where the presence of an exposed
person make a risk to the safety and health of himself.
EXPOSED PERSON = any person that is placed enrely or parally inside a danger zone.
OPERATOR = person who is appointed to install, operate, adjust, perform ordinary maintenance and
clean the machine.
All risk areas of the pneumac valve have been checked and consequently have been taken the necessary
precauons to avoid risks to people and damage to the components of the electromagnec valve.
Safety glossary
Intended purposes
By this term it refers to the use of the machine as described by the manufacturer.
For “intended purposes” also refers to the use of the unit through its design, its construcon and funcon.
Secondary risks
Secondary risk are unavoidable despite all the prevenve measures that are taken.
Trained personnel
A person is trained when informed by a competent person about the acvies it must perform and the
risks relave to improper behaviour and, if necessary, it has received the required training. Also a trained
person must be informed about the safety devices and protecve measures.
2.3.1 General safety

SECTION 2 - SAFETY RULES AND REGULATIONS
15
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
On the electromagnec valve also equipped with protecon systems remain the following R. R. RESIDUAL
RISKS:
A - Danger due to electricity in general
B - Danger due to inhalaon of dangerous vapours to health and re danger
C - Danger due to problems/malfuncons of the electromagnec valve
This can lead an excessive increase of dispensing of glue as well as a re danger or dangers due to
inhalaon of dangerous vapours to health.
D - Risk due to the projecon of uids under pressure
In case of improper maintenance of the hydraulic system parts.
E - Risk of re
Prohibion of smoking and/or high temperature objects near the electropneumac valve.
Skilled personnel
A skilled person is a competent one or suciently trained.
The operator must be informed of the posion and operaon of all commands and features of the valve.
The maintenance and start-up operaons must be performed by qualied technicians aer properly
seng up the valve.
The unauthorized tampering or replacement of one or more valve parts, the adopon of accessories
that modify the original use of the valve and the purpose of dierent consumer product from those
recommended in this manual, can become a cause of injury risks.
The protecve devices must not be removed or tampered for the risk to reduce the accident prevenon
features of our products.
To highlight parcular situaons for the safety of the instrument, are used the following graphic
symbols:
2.3.2 Unavoidable dangers and risks unavoidable
CAUTION and/or DANGER – Accident prevenon rules for the operator
R. R. – RESIDUAL RISKS
WARNING - There is the possibility to damage the machine and/or its components
PRECAUTION - Further informaon about the operaon in progress
NOTE - Provides useful informaon

USER AND MAINTENANCE MANUAL
16 ELECTROPNEUMATIC VALVE MZK
In order to safeguard the health and security of the exposed people, the valve is equipped with:
• Fixed guards: removable only by tools
• Mobile guards: depending on the model of valve
The valve can be equipped with area delimiters that prevent operator access to dangerous areas (see
R.R.).
CE norms signage: examples of danger symbols
2.3.3 Safety devices adopted
2.3.4 More general safety precauons
CAUTION: The maintenance operaons must be peremptorily carry out by qualied and
authorized personnel, only and exclusively with valve turned o: power switch in “OFF” posion.
Make sure the passages around the valve are not hindered by misplaced cables and dangerous
for personnel.
The user must always put available to the operators, in the areas that require it, safety googles,
gloves, and any other necessary protecons; it must also make sure that these safeguards are
being used.
The areas that require the use of protecve clothing must be marked with warning signs and
pictograms indicang the residual risk.
CAUTION: is ABSOLUTELY FORBIDDEN to tamper or remove the plates and the protecons on
the valve.
The manufacturer declines all responsibility for the safety of the valve in case of omied
observance of the prohibion.
C
Corrosive O Combusve
agent
F
Easily ammable F+ Extremely
ammable
Xi
Irritang N Dangerous for the
environment
X
Noxious P Toxic
Danger Noxious material High voltage

SECTION 2 - SAFETY RULES AND REGULATIONS
17
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
Operang environmental condions
The electropneumac valve is designed to operate in a closed local, protected from the atmospheric
agents, with all the safety requirements resulng from the laws in force.
Waste disposal
The buyer is responsible to follow the correct process and the norms in force in the country for the
disposal of waste and residual material.
Disposal
The pick up of special and/or toxic-noxious waste must be commied with contract to specically
authorized companies and who do the transport materially must be in ownership of the required
authorizaons and must be turn out to be registered in the haulers register.
It’s absolutely forbidden to throw waste in the environment.
For the disposal of the packaging, the user must follow the laws in force in the country of plant installaon.
Special waste
They are considered special waste:
• Remains from industrial producon, agricultural acvies, cras, commercial and service that for
quanty are not declared comparable to urban waste;
• Obsolete and deteriorated machinery and equipments;
• Motor vehicles and their parts out of use.
Fire material
There is no re dangers by the operaon of the electropneumac valve.
2.4 Environmental condition
Lighng
The customer is responsible for ensuring an appropriate lighng of the local where the machine is
installed, according to the laws in force in your country and the EU direcves.
Vibraons
The electropneumac valve doesn’t make vibraons.
CAUTION: The customer must provide an appropriate re-ghng system, evaluang its internal
situaon and respecng the laws in force.
In case of re, disconnect immediately the power switch to interrupt the power supply.
CAUTION: explosive atmosphere
The electropneumac valve is not designed to operate in explosive atmosphere. It is forbidden
to use the machine in an explosive atmosphere, even if only parally explosive.

USER AND MAINTENANCE MANUAL
18 ELECTROPNEUMATIC VALVE MZK
Zator’s products are manufactured in compliance with the laws in force during its construcon.
The personnel will be trained and qualied to take advantage of the installed electropneumac valve
requirements.
The personnel must operate in a comfortable space that could be guarantee safety and hygiene for the
operator.
In case of a dierent desnaon or necessity of use of the electropneumac valve, it’s appropriate to
refer to the technical oces of the Zator Srl.
Goods in packaging
Outside the package are indicated all the informaon about the content idencaon and the safety
movement:
• address of the sender and the addressee
• dimensions: length – width – height
• gross – net – tare weight
• annotaons and pictograms (ex. brile, handle with care, high)
CAUTION: The customer must check the condion of the goods upon its arrival.
Predisposions: choose the installaon space
Without prejudice to specic disposions, the customer will be provide to:
• Appropriate logisc arrangement for the placement and conducon of the valve
• Power supply, including the protecve conductor usually called “GROUNDED”
• Electrical equipment arrangement and possible pneumac system, if required
• Wear materials
For the electrical connecon it is necessary to have a preferenal line of power supply with the features
listed in “technical features”.
2.5 Installation - General instructions

SECTION 2 - SAFETY RULES AND REGULATIONS
19
Zator Via Galvani, 11- 20095- Cusano Milanino (MI)- Italy www.zator.it - [e-mail]
The use of the valve with adhesives, glues or general uids must be respect the following basic rules.
Before use a specic type of uid check that:
• The uid viscosity is compable with the features of the valve
• The characteriscs of the uid meet the desired requirements
• The datasheet of the uid provided by the manufacturer includes all the informaons about the uid
such as: viscosity, applicaons, gluing me (for glues or adhesives) and storage
• The storage me of the uid has not been exceeded
• The uid has not been exposed to temperatures near or below than zero therefore it has deteriorated
• The packaging of the uid are sealed
For the use of special adhesives, glues or uids we recommend to contact the Zator company to verify
the compability of the applicaon.
Before use a dierent type of uid clean accurately the valve to avoid possible contaminaon of the new
uid.
When used water-based adhesives of glues they are easily removable with water in their liquid state.
However, when they harden is more dicult to remove it. For this reason, before long stop it is
recommended to wash accurately the valve. Please refer to the maintenance program shown in this
manual.
2.6 Use of adhesives, glues or other fluids

USER AND MAINTENANCE MANUAL
20 ELECTROPNEUMATIC VALVE MZK
The electropneumac extrusion valve MZK has been
designed and realized for its use on various kind of producon
machines: its design and versality make it ideal for any
applicaons that require the use of extrusion valves.
It’s a dispenser of low and medium viscosity glues, adhesives
and uids. The valve is pneumacally controlled by one
solenoid valve ed on the valve body. The valve, with an-
sck coang, has a carbide needle and a wide selecon of
stainless steel nozzles, designed to meet the dierent needs
of applicaons.
The micrometric adjustment allows a ne control of the glue
quanty dispensed.
3TECHNICAL DESCRIPTION
3.1 Valve functions
Dots
3.2 Technical data
fluid types
adhesives and glues
paints
inks
lubricants
low and medium
viscosity uids
Available nozzle diameters from 0,3 to 1,5 mm
Air pressure control min. 5 bar
Drive type double acon
Maximum working pressure 80 bar
Coil 24 Volt
Weight 330 g