Type

6518, 6519

3/2, 5/2 or 5/3 way solenoid valve
3/2-, 5/2- bzw. 5/3-Wege-Magnetventil
Électrovanne 3/2, 5/2 ou 5/3 voies

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2017-2024
Operating Instructions 2404/01_EU-ML_00815463 / Original DE

Type 6518, 6519
Table of Contents﻿
1

OPERATING INSTRUCTIONS................................................ 4
1.1 Symbols........................................................................ 4
1.2 Definition of terms........................................................ 4

2

INTENDED USE..................................................................... 5

3BASIC SAFETY INSTRUCTIONS........................................... 54

GENERAL NOTES.................................................................. 6
4.1 Contact address........................................................... 6
4.2 Warranty....................................................................... 6
4.3 Information on the Internet........................................... 6

5

PRODUCT DESCRIPTION..................................................... 7
5.1 Ports............................................................................. 7
5.2 Assembly...................................................................... 7
5.3 Manual override............................................................ 9
5.4 Circuit functions........................................................... 9
5.5 Flow restriction function............................................. 10
5.6 Standards and directives............................................ 11
5.7 Product identification................................................. 12

6

TECHNICAL DATA................................................................ 13
6.1 Operating conditions.................................................. 13
6.2 Electrical data............................................................. 14
6.3 Pneumatic data.......................................................... 14
6.4 Materials..................................................................... 14

7

INSTALLATION..................................................................... 15
7.1 Attach device.............................................................. 15

7.2
7.3
7.4

Connecting device pneumatically.............................. 15
Electrically connecting the device.............................. 17
Rotate the solenoid.................................................... 188

MAINTENANCE.................................................................... 19
8.1 Maintenance work...................................................... 19
8.2 Faults.......................................................................... 19
8.3 Install pilot control...................................................... 19

9ACCESSORIES AND SPARE PARTS................................... 20
9.1 Accessories................................................................ 20
9.2 Spare parts................................................................. 20

10 TRANSPORTATION, STORAGE, DISPOSAL....................... 22

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Type 6518, 6519
Operating instructions

1

OPERATING INSTRUCTIONS

The operating instructions describe the entire life cycle of the device.
Keep these instructions ready to hand at the operating site.

NOTE
Warns of damage.
Important tips and recommendations.

Important safety information.
▶ Read these instructions carefully.
▶ Above all, observe the safety instructions, intended use andusage conditions.
▶ Persons who work on the device must read and understandthese instructions.

1.1

Highlights instructions to avoid a danger.
Highlights a procedure which you must carry out.

Symbols
1.2

DANGER
Warning of an immediate danger.
▶ Failure to comply will result in death or serious injury.
WARNING
Warns of a potential danger.
▶ Failure to observe these warnings may result in serious injuries
or death.
CAUTIONWarns of a potential hazard.
▶ Failure to comply with these instructions may result in moderate or minor injury.

4

Refers to information in these operating instructions or inother documentation.

englishDefinition of terms

Term

Definition for these instructions

DeviceType 6518 3/2-way solenoid valve orType 6519 3/2, 5/2 and 5/3-way solenoid valve

Type 6518, 6519
Intended use

2

INTENDED USE

Unauthorised use of the Type 6518 and 6519 solenoid valve
may be dangerous to people, nearby equipment and theenvironment.
▶ The device serves exclusively as a 3/2, 5/2 or 5/3-way solenoid
valve for the media that is permitted based on the data sheet forthe corresponding type.
▶ With a properly connected and assembled cable plug, e.g.
Bürkert Type 2518, the device complies with degree of protection IP65 in accordance with DIN EN 60529/ IEC 60529.
▶ In potentially explosive environments, the device must only be
used in accordance with the specifications on the separate Ex
type label. The additional information and safety instructions
relating to Ex areas enclosed with the device must be adhered
to when deploying the device.
▶ Devices without a separate Ex type label must not be used in
the potentially explosive atmosphere.
▶ When using the device, observe the authorised data, and theoperating and usage conditions specified in the contract documents, the data sheet and the operating instructions.
▶ Prerequisites for safe and trouble-free operation include
correct transport, storage and installation as well as careful
operation and maintenance.
▶ Use the device only as intended.

3

BASIC SAFETY INSTRUCTIONS

These safety instructions do not take into account any unforeseen
circumstances or events that occur during installation, operationand maintenance. The operator is responsible for observing
the location-specific safety regulations, also with reference topersonnel.

Risk of injury due to high pressure and escaping medium.
▶ Switch off the pressure before working on the device or system.
Vent or empty the lines.
Risk of injury from electric shock.
▶ Switch off the power supply before working on the device orsystem. Secure it against reactivation.
▶ Observe the applicable accident prevention and safety regulations for electrical devices.
Risk of burns or fire from hot device surfaces due to longer
duty cycles.
▶ Only touch the device when wearing protective gloves.
▶ Keep the device away from highly flammable substances andmedia.
Risk of injury from malfunctioning valves with alternating current(AC).
A seized core causes the coil to overheat, which leads to functional
failure.
▶ Check the working process for proper function.

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Type 6518, 6519
General notes
General hazardous situations.
To prevent injuries, observe the following:▶ Observe the general rules of technology.
▶ Never adjust the screws secured in red.
▶ Use the device only when it is in perfect condition and inaccordance with the operating instructions.
▶ Secure the device or system to prevent unintentional activation.
▶ After an interruption in the power supply, ensure that the process is restarted in a controlled manner.
▶ Do not modify the device.
▶ Do not mechanically load the device.
▶ Only trained technicians may perform installation and maintenance work.
▶ Install the device according to the regulations applicable in therespective country.

4

GENERAL NOTES

4.1

Contact address

Germany
Bürkert Fluid Control Systems
Sales Centre
Christian-Bürkert-Str. 13-17
D-74653 IngelfingenTel. +49 (0) 7940 - 10-91 111
Fax +49 (0) 7940 - 10-91 448
Email: info@burkert.com
International
The contact addresses can be found on the back pages of theprinted operating instructions.
They are also available online at: country.burkert.com

4.2

Warranty

A precondition for the warranty is that the device is used asintended in consideration of the specified usage conditions.

4.3

Information on the Internet

Operating instructions and data sheets for the Bürkert products
can be found on the internet at: country.burkert.com

6

englishType 6518, 6519
Product description

5

PRODUCT DESCRIPTION

5.2

Assembly

The solenoid valves can be used individually on blocks or on valve
islands and can be mounted on the modular pneumatic base rail
in valve blocks.

5.2.1

3/2 or 5/2-way valve

Types 6518 and 6519 consist of:• a pilot control

1• valve body with diaphragm and valve seat seals (3/2 and5/2-way valve) or slide (5/3-way valve)

5.1

1

2

Ports

All ports are marked with numbers on the valve body. The meaningof the numbers is the same for each variant.
Number1
2 and 43 and 512 and 14

3

2

Meaning
Pressure port
Working port
Exhaust port
Pilot pressure port

4

3

4

4

Fig. 1:

Valve assembly 3/2 or 5/2-way valve

Item

Description

1

Pilot control

2

Manual override (see Chapter „5.3“)3Pilot pressure port

4

Working port

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Type 6518, 6519
Product description

5.2.2

5/3 or 5/2-way pulse valve

5.2.3

NAMUR 3/2 or 5/2-way valve

1

1

2

1

3
4
5

3

3

2

2

1
4

5

2
Fig. 2:

Valve assembly 5/3 or 5/2-way pulse valve

Item

Description

1

Pilot control

2

Cable plug

3

Exhaust port

4

Pressure port

5

Exhaust port

Pulse-controlled solenoid valves work with two coils that are
switched alternatingly.
8

englishFig. 3:

4

Valve assembly 3/2 or 5/2-way valve, NAMUR

Item

Description

1

Pilot control

2

Valve function

3

Exhaust port

4

Removable plate5

Exhaust port

5

Type 6518, 6519
Product description

5.3

Manual override

4

12

Impulse version with 2 coils andmanual override.
Pressure applied via port (1), consequently one of the two ports (2) or (4)are pressurised

5 1 3→ To override the valve manually, press the manual override andturn it 90° clockwise until it stops.

5.4

Z, 5/2-way solenoid valve

2

14

Only press the manual override when the power is off.

Circuit functions

12
1(P)

3(R)

2(A)

Servo-assisted, with manual override,
normally closed

4

4

3(R)

5 13

4

14
12

2

14

Servo-assisted, with manual override.
Pressure applied via port (1), consequently one of the two ports (2) or (4)are pressurised.

12
5 1 3

Servo-assisted, with manual override,
normally open

L, 5/3-way solenoid valve
With manual override.
All connections blocked in the central
positionN, 5/3-way solenoid valve
With manual override.
In central position, ports 2 and 4 vented
W, 5/2- or 3/2-way solenoid valve

5/2

3/2
4

H, 5/2-way solenoid valve

2

5 1 3

12

D, 3/2-way solenoid valve

2(B)

2

14

3(R)

1(P)

12
5 13

* Vacuum, with auxiliary
pilot air
10

2

14

Servo-assisted with auxiliary pilot air,with manual override, normally closed

12
1(P)

4

C, 3/2-way solenoid valve (*forvacuum 1), with auxiliary pilot air)

2(A)

2

12

With manual override and removableplate
5/2 way: pressure applied via port (1).
Consequently one of the two ports (2)or (4) are pressurised.
3/2 way: pressure applied via port (1),normally closed

3 15
1)

Connect the vacuum generator to port 1.

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Type 6518, 6519
Product description

5.5

Flow restriction function

5.5.1

NAMUR flow restrictor plate 3/2-way

Type 6518 and 6519 have the option to restrict the flow of exhaust
air to exhaust ports R and S. The travel speed of the connected actuators is reduced (process valves, cylinders etc.) with this function.

This flow restrictor plate can be used for the following Type 6519
devices in order to control the drive-in/drive-out speeds at theprocess valve/cylinder independently of each other:

The flow restriction function can either be obtained using the accessories available from Bürkert, or using standard flow restrictors
suited to the process environment. The flow restrictor is mounted
on the threaded connection of the body (port 3; 5) for this purpose.

• 5/2-way NAMUR removable plate to 3/2-way position (seeChapter „5.2.3“)The following accessory is available for devices with NAMUR
interface to perform the flow restriction function:• NAMUR flow restrictor plate 3/2-way (ID907217)• NAMUR flow restrictor plate 5/2-way and 5/3-way (ID 907218)

2/1

3/1

2/1

2/2

3/1

3/2

2/2

3/2

• NAMUR turning plate (ID907216)

Fig. 4:10

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NAMUR flow restrictor plate with label, 3/2-way

Type 6518, 6519
Product description

5.5.2

NAMUR flow restrictor plate 5/2-way
and 5/3-way

This flow restrictor plate can be used for the following Type 6519
devices in order to control the drive-in/drive-out speeds at theprocess valve/cylinder independently of each other.

5.5.3

This turning plate with silencer is used in order to use 5/2 and5/3-way NAMUR valves as 3/2 and 3/3-way valves. The normallyclosed function can be changed to normally open by rotating theturning plate by 180°.
If flow restriction is desired, a standard flow restrictor must be
installed at R/5 or S/3.

• 5/2-way (see Chapter „5.2.3“)• NAMUR 5/3-way

Detailed description is set out in Chapter „Installation“.
2/1

2/2

4/2

4/1

2/1

4/1

2/2

4/2

Fig. 6:

5.6
Fig. 5:

NAMUR turning plate

NAMUR flow restrictor plate with label, 5/2 and 5/3-way

NAMUR turning plate

Standards and directives

The device complies with the valid EU harmonisation legislation.
In addition, the device also complies with the requirements of thelaws of the United Kingdom.
The harmonised standards that have been applied for the conformity
assessment procedure are listed in the current version of the EU
Declaration of Conformity/ UK Declaration of Conformity.

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Type 6518, 6519
Product description

5.7

Product identification

5.7.1

Labelling on valve body

5.7.2

Type label
Laser engravingof solenoid AC08

Solenoid AC08

Solenoid
AC10

1

1

3
Made in Germany

2
4

Fig. 7:3H
9,0
PN2 - 10 bar
50-60Hz 1,7W

00174395

4
5

W1YMG

6
Fig. 8:

12

6519
G1/4
230V

Labelling on the valve body

Item Description

2

Location and description of the type label, example

Item Description

1

Circuit function

3

Number of port

2

Port connection

4

Manufacturer

englishItem Description

Item Description

1

Type

4

Type of connection; permitted pressure range

2

Circuit function

5

Voltage; frequency;
output3

Orifice6

Identification number

Type 6518, 6519
Technical Data

Laser engraving of solenoid AC08
D-74653 Ingelfingen

5.7.3

EAC
AC08 - 25AB

100987654

6.1

Operating conditions

coil

4

Description of laser engraving on solenoid AC08

Item Description

1

Identification numberof solenoid AC083

CE mark

2

Serial number

4

Approval as per US andCanadian terms–25 °C…+55 °C (polyamide)–10 °C…+55 °C (anodised aluminiumwith polyamide armature)3

S/N 00001000 g W29MP

Item Description

TECHNICAL DATA

Ambient temperature2)

2
Fig. 9:

6

Ambient temperaturefor expanded temperature range2)
Permitted medium
temperature2)–10 °C…+70 °C (anodised aluminiumwith metal armature)–40 °C…+80 °C (aluminium
ematalised)–30 °C…+80 °C (stainless steel)–10 °C…+55 °C (polyamide and anodised aluminium)

Permitted medium tem- –30 °C…+80 °C (aluminium ematalised
perature for expanded
and stainless steel)temperature range2)
Degree of protection
IP65 according to DIN EN 60529/
IEC 60529 with correctly connected
and installed cable plug (see Chapter„6.3“)
Permitted media
Filtered compressed air, oiled and not
oiled, neutral gases
Installation position
2)

Any, preferably solenoid actuator face up

Observe temperature restrictions due to approvals.

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Type 6518, 6519
Technical Data

6.1.1

Operating conditions for valves with
UL/UR approval

Type
6518
6519

6.2

Mediumtemperature

Ambient
temperature

Medium–10 °C…+55 °C–25 °C…+55 °C

Air

Ports

AC08

AC10

DIN EN 175301-803
design C:
for cable plug 2516

Industry standard,
design A:
for cable plug 2518

Industry standard,
design B:
for cable plug 2507

Pneumatic data

Compressed air quality
Permitted pressure
range
3)

ISO 8573-1:2010, Class 7.2.43)
Observe specifications on type label.
Differential pressure at least 2 bar
between ports 1 and 3/5

 o prevent the expanded compressed air from freezing,the pressureTdew point must be at least 10 K less than the medium temperature.

6.3.1

Electrical data

Solenoid

6.3

External pilot pressure

For valves in auxiliary pilot air variants:→ Connect compressed air supply to port 12 or 14 (pilot pressureport).
Pilot pressure:

6.4

 t least 70% of working pressure at port 1a(minimum pilot pressure 2.5 bar)

Materials

Operatingvoltagesee type label

see type label

Sealing materials depend on the body materials:

Voltagetolerance

±10 %

±10 %

Body
material

Polyamide

Anodisedaluminium

Ematalised
aluminium

Stainlesssteel

Nominal power

1.7 W

2 W to 10 W

Sealing
material

NBR, PUR

NBR

FKM, NBR

PU, NBR,
FKM

Nominal operating mode

Continuous operation
100% duty cycle

Continuous operation 100% duty
cycle

14

englishType 6518, 6519
Installation

7

INSTALLATION

7.1

Attach device

DANGER
Risk of injury due to high pressure and escaping medium.
▶ Switch off the pressure before working on the device or system.
Vent or empty the lines.
Risk of injury from electric shock if the solenoid is installed
incorrectly.
▶ Switch off the power supply before working on the device orsystem. Secure it against reactivation.
▶ When installing, make sure that the solenoid is firmly seatedon the body cover so the protective conductor connection of
the solenoid is connected to the valve body.
▶ Observe the applicable accident prevention and safety regulations for electrical devices.
WARNING
Risk of injury due to improper installation.
▶ Only trained technicians may perform installation work.
▶ Perform installation work using suitable tools only.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶ Secure the system against unintentional activation.
▶ Following installation, ensure a controlled restart.

1

2
Fig. 10:

Attach device

Item Description1

DeviceItem Description
3

Fastening screws→ Fasten device directly to the wall with M4 fastening screws.
Tightening torque: min. 2 Nm and max. 5 Nm.

7.2

Connecting device pneumatically
WARNING

Risk of injury from quickly accelerating device parts andunconnected compressed air hoses flapping around.
▶ Before pressurising the valve, check all hose connections andfittings for tight, secure fit.
→ Check the hose lines for contamination and clean them.

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Type 6518, 6519
Installation→ Install a dirt trap upstream of the valve inlet (≤ 500 mm).

7.2.1.1→ Push the hose lines into the push-in connections of thesolenoid valves until they come to a stop. Do not exceed thestandard screw-in depth.
→ Use PTFE tape or elastomer seal for sealing.
→ Note the assignment of the connections (see Chapter „5.1“).
→ Align hose lines.

7.2.1

Mount turning plate on NAMUR variant

2

3
1

Connecting NAMUR variant

Type 6519 NAMUR variant is supplied by the plant in 5/2-way
function. The 3/2-way function is set by rotating the removable
plate by 180°.
When using as a 3/2-way valve:→ Close port 3 with G1/4 sealing plug supplied.
When using on large actuators with fast discharge time:→ Use a silencer instead of the sealing plug.

Fig. 11:

Mount turning plate

Item Description
1

NAMUR device

2

Turning plate

Item Description
3

M5x45 mm fastening
screws→ Mount turning plate on NAMUR device with 4 fastening
screws supplied. Observe tightening torque of min. 2 Nm tomax. 5 Nm.

16

englishType 6518, 6519
Installation
7.2.1.2

Mount 5/2, 3/2-way flow restrictor plate on
NAMUR variant

2
3
1

7.3

Electrically connecting the device
WARNING

Risk of injury from electric shock.
If there is no protective conductor contact between thesolenoid and the body, there is a risk of electric shock.
▶ Switch off the power supply before working on the device orsystem. Secure it against reactivation.
▶ Always connect the protective conductor.
▶ Check electrical continuity between solenoid and body.

→ Fasten cable plug. Observe the tightening torque (see table„Tightening torques“).

→ Check that the seal is correctly fitted.
Seal

Fig. 12:

Approved cable
plug

Mount flow restrictor plate

Item Description
1

NAMUR device

2

Flow restrictor plate

Item Description
3

M5x55 mm fastening
screws→ Mount turning plate on NAMUR device with 4 fastening
screws supplied. Observe tightening torque of min. 2 Nm tomax. 5 Nm.

Observe maximum
tightening torquevalue!
Fig. 13:

Electrically connecting the valve

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Type 6518, 6519
Installation→ Connect protective conductor and check electrical continuity

between solenoid and housing (see protective conductor test
values).

NOTE
If the cable plug EN 175-301-803 is structured so that the screwis at the top, a seal made from a material that is compatible withyour process must be fixed under the screw head.
Protective conductor test values
Resistor

Test voltage

Test current

max. 0.1 Ω

12 V

1A

Tightening torques
Solenoid
AC08
AC10

18

Cable plug

Design

2507

B

2516

C

2509, 2513,
2518

A

englishMax. tightening
torque0,3 Nm
1 Nm

7.4

Rotate the solenoid

Solenoid can be rotated 4 x 90° (with block installation 2 x 180°).
→ Loosen the nut.
→ Rotate the solenoid.
NOTE
Damage to the device caused by the wrong tool.
▶ Use open-end wrench.
→ Fasten the solenoid with a nut, using an open-end wrench.
Observe maximum tightening torque:
Solenoid AC08: 2.8 Nm,
Solenoid AC10: 5 Nm.

Type 6518, 6519
Maintenance

8

MAINTENANCEWARNING

Risk of injury due to improper maintenance.
▶ Only trained technicians may perform maintenance work.
▶ Perform maintenance work using suitable tools only.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶ Secure the system against unintentional activation.
▶ Ensure a controlled restart after maintenance.

8.1

Maintenance work

If the information in these operating instructions for using the valve
is followed, the valve will work without requiring maintenance.

8.2

Faults

If faults occur, check whether:• the device has been installed according to regulations• the electrical and pneumatic connections have been properly
set up• the device is not damaged• all screws have been tightened• voltage and pressure have been applied• the pipelines are clean

8.2.1

Valve does not actuate

Possible cause:• Short circuit or coil interrupted• Core or core area contaminated• Operating pressure outside the permitted pressure range

8.2.2

Valve does not close

Possible cause:• Interior of the valve contaminated

8.3

Install pilot control
WARNING

Risk of injury from looseness of valve.
▶ Make sure that the O-rings/seals fit the valve properly.
Overheating, risk of fire.
Connecting the solenoid without first installing the pilot control
will lead to overheating and will destroy the solenoid.
▶ Only connect the solenoid after installing the pilot control.
NOTE
Caution: risk of breakage.
▶ Do not use the solenoid as a lever arm.

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Type 6518, 6519
Accessories and spare parts
Nut

9

Solenoid
Pilot control

Core guide tube
Pilot control body

Manual override

CAUTION
Risk of injury and/or damage due to incorrect parts.
Incorrect accessories and unsuitable spare parts may cause personal injuries and damage to the device and the area around it.
▶ Only use accessories and spare parts from Bürkert.

9.1
Valve bodyFig. 14:ACCESSORIES AND SPAREPARTS

Install pilot control→ Screw pilot control body onto the valve body.
Observe tightening torque of max. 1.5 Nm.

Accessories

Devicevariant

Flow
restrictor
plate for3/2-wayFlow
restrictor
plate for5/2-way

NAMUR

907217907218Turning platefor 3/2-way

907216→ Position the solenoid on the core guide tube.
Solenoid can be rotated by 4 x 90° (only 2 x 180° with block
installation).

9.2

NOTE

• Order by stating the spare part set number (SET 1, SET 2,
SET 3) and identification number (this can be seen on the typelabel of the device)

Damage to the device caused by the wrong tool.
▶ Use open-end wrench.
→ Fasten the solenoid using a nut with an open-end wrench.
Observe tightening torque of max. 5 Nm.

20

englishSpare parts

Spare parts can be ordered depending on the variant and valve
assembly:• Order by entering identification number in eShop (see „9.2.1“)The right variant, and therefore the right spare part, can be
determined using the design of the plug.

Type 6518, 6519
Accessories and spare parts

AC08:
Plug design B Plug design C

9.2.1

AC10:
Plug design A

Order spare parts in eShop→ Open Bürkert eShop on the internet.
→ Log in or register.
→ Find spare parts using material numbers.

SET 1
SET 1

SET 2
→ Put spare parts in the basket and complete order.
SET 3

SET 3

SET 1
SET 2
SET 3
Fig. 15:

If you cannot find spare parts, contact your Bürkert
service employee.

Coil set
Armature
Pneumatic valve without coil
Spare part sets

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Type 6518, 6519
Transportation, storage, disposal

10

TRANSPORTATION, STORAGE,DISPOSAL

NOTE
Damage in transit due to inadequately protected devices.
▶ Protect the device against moisture and dirt in shock-resistantpackaging during transportation.
▶ Observe permitted storage temperature.
Incorrect storage may damage the device.
▶ Store the device in a dry and dust-free location.
▶ Storage temperature –40 °C…+55 °C.
Environmentally friendly disposal▶ Follow national regulations regarding disposal andthe environment.
▶ Collect electrical and electronic devices separately
and dispose of them as special waste.
Further information at country.burkert.com.

22

englishwww.burkert.com