BURKERT 20122700 Type 8652 AirLINE is an electro-pneumatic modular valve island designed to control pneumatic loads and process actuators in automation systems. This assembly features a 16-bank pneumatic configuration mounted on an aluminium AirLINE Quick baseplate, integrating brass push-in fittings, 32 digital inputs across four electronic input modules, and an Industrial EtherNet communication gateway supporting multiple industrial Ethernet protocols.

Pneumatic Configuration and Port Layout

The valve island is factory-populated with 16 pneumatic valve positions. Positions 1 through 14 contain 5/2-way monostable valves in circuit function H (CF-H). Positions 15 and 16 contain 3/2-way monostable valves in circuit function C (CF-C). The pneumatic base incorporates integrated check valves in exhaust channels 3 (R) and 5 (S), as well as pneumatic HotSwap capability in supply port 1 (P), allowing valve replacement under supply pressure.

Position	Circuit Function	Description
Slot 1 to Slot 14	CF-H	5/2-way monostable pneumatic valve
Slot 15 to Slot 16	CF-C	3/2-way monostable pneumatic valve

Process connections are executed in brass with push-in dimensions optimized for industrial automation headers:

Connection	Dimension	Material	Additional Detail
Supply Connection	D10	Brass	Primary supply 1 (P)
Working Ports	D6	Brass	Working ports 2 and 4
Baseplate Interface	AirLINE Quick	Aluminium	Control cabinet mounting plate
Auxiliary Pilot Air	Internal	—	Sourced from primary air feed
Additional Supply Left	Threaded	—	Threaded connections G 1/4" and M7
Additional Supply Middle	None	—	0 PCE intermediate feed quantity
Additional Supply Right	None	—	Without additional feed

Operating Conditions and Pressure Ratings

Nominal working pressure ranges from -1.00 bar to 10.00 bar, with required pilot supply pressure between 3.00 bar and 10.00 bar. Permissible operating and ambient temperatures span from -10 °C to +55 °C.

Operational Parameter	Specified Value
Nominal Operating Pressure	-1.00 bar to 10.00 bar
Pilot Air Pressure	3.00 bar to 10.00 bar
Medium Temperature	-10 °C to +55 °C
Ambient Operating Temperature	-10 °C to +55 °C
Nominal Electrical Supply	24 V DC (±10%)
Nominal Supply Current	3 A (typical rating plate baseline)
Degree of Ingress Protection	IP20 (with mating connectors plugged)
Pilot Valve Element	Type 6164 (piloting Type 6534 directional valves)
Maximum Permissible Valve Slice Functions	48 functions

Communication Gateway and Digital I/O

Digital automation interfacing is handled by a modular fieldbus gateway with dual RJ45 hardware ports. The multi-protocol Industrial EtherNet interface supports:

• PROFINET IO
• EtherNet/IP
• Modbus TCP
• EtherCAT
• CC-Link IE Field Basic

The electronic architecture includes four digital input modules, providing a total of 32 digital input channels (DI) directly on the island assembly for field sensor feedback.

Nameplate Layout and Identification

Each Type 8652 valve island carries a primary rating plate showing fundamental electrical, mechanical, and serial data.

Position	Description	Example Data on Plate
1	Device Type	Type 8652 AirLINE
2	Pressure Range	3–10 bar
3	Ambient Temperature Range	-10 to +55 °C
4	Nominal Voltage / Current Consumption	24 V DC / 3 A
5	Serial Number	S/N 0
6	Manufacturing Code	W14AL
7	Order Article Number	20122700 (Example: 12345678)

Hazardous Area Approvals and Ex Marking

When supplied for potentially explosive atmospheres under option codes PX68 or PU17, the Type 8652 platform carries certification for Group II Category 3G and 3D equipment under ATEX Directive 2014/34/EU and the IECEx scheme:

Marking Element	Code PX68 Marking	Code PU17 Marking
ATEX Certificate	BVS 20 ATEX E 031 U	BVS 20 ATEX E 031 U
IECEx Certificate	IECEx BVS 20.0024 U	IECEx BVS 20.0024 U
ATEX Gas / Dust Marking	II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc	II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc
IECEx Gas / Dust Marking	Ex ec IIC Gc / Ex tc IIIC Dc	Ex ec IIC Gc / Ex tc IIIC Dc
US / Canada Zone Marking (Gas)	—	Cl I, ZN 2, AEx ec IIC Gc / Ex ec IIC Gc U
US / Canada Zone Marking (Dust)	—	Cl II ZN 22, AEx tc IIIC Dc / Ex tc IIIC Dc U
US / Canada Division Marking	—	Cl I, Div 2, Gr A, B, C, D / Cl II, III, Div 2, Gr F, G
CCC Certification	GB/T 3836-2021 (SITIIAS)	GB/T 3836-2021 (SITIIAS)

Special Conditions for Safe Hazardous Operation

Installation and servicing in hazardous areas must satisfy the following constraints according to EN/IEC 60079-0, EN/IEC 60079-7, and EN/IEC 60079-31:

• Enclosure Protection: For Ex ec (Zone 2 / Category 3G), the island must be mounted inside a cabinet providing at least IP54 protection. For Ex tc (Zone 22 / Category 3D), the enclosure must provide at least IP6X protection.
• Pollution Degree: Operation is restricted to environments with a minimum of pollution degree 2 per IEC 60664-1.
• Overvoltage Transient Protection: External transient protection must prevent peak supply disturbances from exceeding 140% of the nominal peak supply voltage.
• Supply Voltage Limits: Nominal voltage must not continuously exceed +10% and transient variations must not exceed +40%.
• Temperature Compliance: At maximum cabinet ambient temperature of +55 °C, the assembly stays within temperature class T4. When using the AirLINE Quick interface on cabinet floors, external adapter plate temperature does not exceed 80 °C.

Hazardous Area Connection and HotSwap Rules

Electrical terminal connections for 24 V power supply, SIA safety shut-off, EVS valve voltage shut-off, and digital inputs must only be plugged or unplugged while de-energized. Pneumatic HotSwap valve removal or insertion is prohibited in hazardous atmospheres unless the environment has been verified as non-explosive using approved test equipment.

Electrostatic and Maintenance Guidance

Electrostatic charge accumulation must be prevented. Clean plastic surfaces and markings only with a damp or antistatic cloth. If cabinet installation obscures the secondary warning marking, affix the included supplemental label: "WARNING DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED" in a clearly visible location.