BURKERT 20112418 Type 8652 AirLINE is an 8-station modular pneumatic valve island designed for process automation environments. Configured as an 8-bank manifold assembly, it features five dual 3/2-way normally closed solenoid valve slices (Circuit Function C), one 5/3-way solenoid valve slice with middle position ventilated (Circuit Function M), and two reserved valve stations fitted with blind plates. Pneumatic process interfacing is handled via nickel-plated brass push-in fittings: D10 mm supply ports and D6 mm working ports, integrated into an AirLINE Quick anodised aluminium floor adapter plate. Communication is powered by an integrated ME43 fieldbus gateway providing Industrial Ethernet connectivity (PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic) via dual RJ45 ports. Two electronic modules provide 16 on-board digital inputs for direct limit switch and sensor monitoring. The valve island operates from -1 bar to 10 bar nominal pressure with 3 bar to 10 bar internal auxiliary pilot air, operates on 24 V DC, and is certified for ATEX/IECEx Zone 2/22 hazardous locations.

Valve Island Setup and Station Allocation

Article 20112418 is delivered fully assembled with the following slot population across its 8 valve stations:

Valve Position	Component Type	Circuit Function	Description
Position 1	Solenoid Valve Type 6534	CF-C	2x 3/2-way, servo-controlled, NC, with manual override
Position 2	Solenoid Valve Type 6534	CF-C	2x 3/2-way, servo-controlled, NC, with manual override
Position 3	Solenoid Valve Type 6534	CF-C	2x 3/2-way, servo-controlled, NC, with manual override
Position 4	Solenoid Valve Type 6534	CF-C	2x 3/2-way, servo-controlled, NC, with manual override
Position 5	Solenoid Valve Type 6534	CF-C	2x 3/2-way, servo-controlled, NC, with manual override
Position 6	Solenoid Valve Type 6534	CF-M	5/3-way, middle position ventilated, with manual override
Position 7	Blind Plate	—	Unpopulated station blanking plate
Position 8	Blind Plate	—	Unpopulated station blanking plate

Technical Specifications

Specification Parameter	Technical Data
Valve Island Type	Type 8652 AirLINE
Article Number	20112418
Base Configuration	8 valve slots (8 PCE)
Width per Station	11 mm
Body Material	Polyamide (PA)
Seal Material	NBR and PUR
Adapter Plate Material	Anodised aluminium (AirLINE Quick)
Connection Fittings Material	Brass (nickel-plated)
Pressure Range (Nominal)	-1 bar to 10 bar (Vac to 10 bar)
Auxiliary Pilot Air	Internal supply, 3 bar to 10 bar
Nominal Flow Rate QNn (Air)	310 l/min (at +20 °C, 6 bar inlet pressure, 1 bar differential pressure)
Operating Voltage	24 V DC (±10%, residual ripple 1 Vss)
Nominal Power per Valve	0.7 W (0.175 W after electronic power reduction)
Nominal Current per Valve	29 mA (10 mA after electronic power reduction)
Electrical Protection Class	Class III according to DIN EN 61140, VDE 0140
Operating Medium	Lubricated or oil-free compressed dry air, neutral gases
Compressed Air Quality	ISO 8573-1:2010, Class 7.4.4 (5 µm filtration recommended)
Ambient Temperature	-10 °C to +55 °C
Medium Temperature	-10 °C to +55 °C
Storage Temperature	-20 °C to +60 °C
Degree of Protection	IP20 standalone; IP65 inside closed control cabinet with AirLINE Quick
Explosion Protection	ATEX / IECEx Zone 2/22 (II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc)
Type Rating (NEMA 250)	Type 4X in closed enclosures (with stainless steel hardware)

AirLINE Quick Adapter System

AirLINE Quick integrates the valve terminal directly into the base or side wall of a control cabinet. Pneumatic supply and exhaust lines, as well as working lines leading to process actuators, route straight through the cabinet floor. This design minimizes cabinet internal tubing, eliminates bulkhead feedthrough adapters, and enables the use of smaller control enclosures.

Interface Feature	Specification
Adapter Plate Construction	Anodised aluminium
Supply and Exhaust Ports (1, 3, 5)	Push-in connector D10 mm, brass
Working Ports (2, 4)	Push-in connector D6 mm, brass
Mounting Location	Control cabinet floor or control cabinet wall
Fastening Hardware	M5 screws DIN 6912 (screw set 308661)

Electrical and Fieldbus Interfaces

Power supply and communication lines are wired to pluggable spring-loaded terminals, separating electronics power from valve actuation coils.

Communication and Display Power Supply (5-Pin Spring-Loaded Terminal)

Terminal Pin	Conductor Colour	Signal Assignment
1	Red	24 V DC
2	White	CAN_H (büS connection)
3	Green	Shielding
4	Blue	CAN_L (büS connection)
5	Black	0 V DC (GND)

Pneumatic Valve Power Supply (2-Pin Spring-Loaded Terminal)

Terminal Pin	Conductor Colour	Signal Assignment
1	Red	AUX 24 V DC
2	Black	0 V DC (GND)

Fieldbus Protocol Compatibility

The integrated ME43 fieldbus gateway supports Industrial Ethernet protocols selectable in software: PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic. Network connection is made via two 100BASE-TX RJ45 ports (X1 and X2) enabling line and star topologies.

RJ45 Pin	Signal Assignment	Function Description
1	TX+	Transmit data +
2	TX-	Transmit data -
3	RX+	Receive data +
4	N.C.	Not connected
5	N.C.	Not connected
6	RX-	Receive data -
7	N.C.	Not connected
8	N.C.	Not connected

Digital Input Modules (16 DI)

Article 20112418 is equipped with two 8DI electronic modules, providing a total of 16 digital input channels for monitoring valve position sensors or limit switches directly on the valve island.

Electronic Parameter	Value / Characteristic
Channel Count	16 DI (2x 8DI modules)
Sensor Compatibility	2-wire sensors (10–30 V), 3-wire PNP sensors, mechanical switches
Sensor Supply Voltage	24 V DC (max. 30 mA per input)
Switching Thresholds	V_OFF = 0 to 5 V; V_ON = 10 to 30 V
Input Current at V_ON	Max. 5.7 mA per channel (typical at 24 V DC)
Input Impedance	> 4 kΩ
Diagnostic Functions	Open-circuit detection (2-wire), short-circuit detection (3-wire)
Galvanic Isolation	None (all channels share common reference potential)
Maximum Cable Length	< 30 m
Wire Cross-Section	≤ 1.5 mm²

Sensor Operating State	3-Wire Sensor	2-Wire Sensor	Mechanical Limit Switch
Sensor Actuated	X	X	X
Sensor Not Actuated	X	X	X
Short Circuit Detection	X	—	—
Wire Break Detection	—	X	—

Network Topology and System Integration

Type 8652 valve islands operating on Industrial Ethernet can serve as master nodes within a process network. Downstream büS valve terminals (sub-islands) connect over CANopen-based büS wiring, allowing multiple valve manifolds to share a single Ethernet IP address and PLC connection point.

Configuration, commissioning, parameter setting, and diagnostics are performed through the Bürkert Communicator software (Type 8920) connected via a USB büS interface (Article 772426). The software displays diagnostic messages in plain text and symbols, mirroring the on-board LC display.

Explosion Protection and Operating Restrictions

Article 20112418 carries ATEX and IECEx component certification for use in Zone 2 gas and Zone 22 dust hazardous locations:

• ATEX Certificate: BVS 20 ATEX E 031 U
• ATEX Gas / Dust Marking: II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc
• IECEx Certificate: IECEx BVS 20.0024 U
• IECEx Marking: Ex ec IIC Gc / Ex tc IIIC Dc

Hazardous Location Safety Requirements

• Install the valve island inside a suitable enclosure: minimum IP54 for gas atmospheres (type of protection "ec") and minimum IP6X for dust atmospheres (type of protection "tc"), in an environment of at least pollution degree 2 according to IEC 60664-1.
• Do not connect or disconnect electrical terminals (24 V supply, digital inputs, fieldbus connectors) while energized in an explosive atmosphere.
• Hot Swap functionality is prohibited while an explosive atmosphere is present unless the area has been demonstrated and certified as non-hazardous by qualified personnel.
• Transient protection must be installed to ensure supply voltage does not exceed 140% of the nominal peak voltage.

Dimensions and Control Cabinet Installation

Valve Island Variant	Dimension A [mm]	Dimension B [mm]	Fastening Holes C	m	n
4-fold	66	—	4x M5	3	1
8-fold (Article 20112418)	35	111	8x M5	7	2
12-fold	77	154	10x M5	11	3

For 8-slot models, mounting pitch B is 111 mm, offset A is 35 mm, with 8x M5 fastening screws securing the manifold to the AirLINE Quick cut-out plate. When installing inside the control cabinet, observe clearance from the cabinet front door and rear wall to ensure accessibility for maintenance and service.

Spare Parts and Ordering Numbers

Description	Valve Function / Port Size	Article Number
Solenoid valve Type 6534	2x 3/2-way CF-C (NC), 4 mm orifice	301374 (Spare kit: REF 296031)
Solenoid valve Type 6534	5/3-way CF-M (ventilated mid-position)	301379 (Spare kit: REF 296035)
Dummy valve plate	Blind plate with screws	335779 (Spare kit: REF 327614)
Electronic module with DI	8 digital inputs display module	384872
Electronic module without DI	Display module without digital inputs	384873
5-pin spring-loaded terminal plug	Communication and display power supply	920180
2-pin spring-loaded terminal plug	Pneumatic valve auxiliary power supply	920442
Fieldbus gateway Type ME43	Industrial Ethernet gateway module	301799
AirLINE Quick screw set	10x M5x10 A2 DIN 6912 screws	308661
AirLINE Quick 8-fold height adapter	Height adjustment without intermediate supply	754960
AirLINE Quick 8-fold retaining plate	Cabinet exterior plate without intermediate supply	60005566
AirLINE Quick 8-fold blind plate	Blanking plate without intermediate supply	754965