BURKERT 20031840 (Type 8652 AirLINE) is a factory-configured 12-bank modular pneumatic valve island integrating multiprotocol Industrial EtherNet communication and an aluminium AirLINE Quick interface. Equipped with ten 5/2-way monostable pneumatic pilot-controlled valves on positions 1 through 10 and two reserve blind plates on positions 11 and 12, the unit controls pneumatic actuators in automated process environments. The valve island includes 24 digital inputs arranged across three electronic modules, internal auxiliary pilot air routing, pneumatic HotSwap at port 1 (P), and integrated exhaust check valves at ports 3 (R) and 5 (S).

Valve Island Configuration and Slot Allocation

Article 20031840 is built with 12 valve positions, populated as follows:

Position	Function / Installed Component	Details
Position 1	5/2-way monostable	Circuit function CF-H
Position 2	5/2-way monostable	Circuit function CF-H
Position 3	5/2-way monostable	Circuit function CF-H
Position 4	5/2-way monostable	Circuit function CF-H
Position 5	5/2-way monostable	Circuit function CF-H
Position 6	5/2-way monostable	Circuit function CF-H
Position 7	5/2-way monostable	Circuit function CF-H
Position 8	5/2-way monostable	Circuit function CF-H
Position 9	5/2-way monostable	Circuit function CF-H
Position 10	5/2-way monostable	Circuit function CF-H
Position 11	Blind plate	Empty position for expansion
Position 12	Blind plate	Empty position for expansion

Pneumatic and Process Connections

The pneumatic supply and working lines connect via push-in fittings on the aluminium AirLINE Quick base plate:

• Pressure supply port (1/P): D10 push-in connector, brass
• Working lines (2/A, 4/B): D6 push-in connectors, brass
• Auxiliary pilot air: Internal feed
• Additional supply (left): Push-in connectors D6 and D10
• Additional supply (middle / right): Without additional feed (0 PCE intermediate feed units)
• Integrated non-return check valves: Included in exhaust connections 3 (R) and 5 (S)
• Pneumatic HotSwap: Integrated check valve mechanism at port 1 (P) enabling valve exchange under supply pressure
• Nominal pressure range: -1.00 bar to 10.00 bar
• Control pilot pressure: 3.00 bar to 10.00 bar
• Fluid medium temperature: -10 °C to +55 °C

Electrical and Fieldbus Specifications

Communication and power management are concentrated in the modular fieldbus head and attached electronic modules:

• Fieldbus module protocol: Industrial EtherNet supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic
• Physical hardware interface: RJ45 connection
• Digital inputs: 24 total digital inputs (Electrical module 1 with DI: Yes; Electrical module 2 with DI: Yes; Electrical module 3 with DI: Yes)
• Rated supply voltage: 24 V DC (±10%)
• Current consumption: Base rating 3 A
• Degree of protection: IP20 (with appropriate mating connectors)
• Ambient operating temperature: -10 °C to +55 °C

Hazardous Area Conditions and Operating Limitations

According to the Type 8652 supplementary documentation for ATEX Directive 2014/34/EU and NEC standards, specific installation and operational requirements apply when installed in explosive atmospheres:

• Explosion protection concepts: Group II, Category 3G Ex ec IIC Gc and Category 3D Ex tc IIIC Dc (optional code PU17: Class I Zone 2 AEx ec IIC Gc, Class II Zone 22 AEx tc IIIC Dc, Class I/II/III Division 2 Groups A, B, C, D, F, G)
• Maximum allowable valve functions: Up to 48 valve functions per island across combined Type 6534 pneumatic valves and Type 6164 pilot solenoids; fewer valve slices generate lower internal thermal load
• Ambient control cabinet temperature: Maximum +55 °C within the enclosure maintains surface temperature limits below Class T4
• AirLINE Quick outside temperature: Must not exceed 80 °C

Enclosure and Electrical Installation Requirements

• The valve island must be installed in a suitable cabinet with at least IP54 ingress protection for Category 3G (Ex ec) gas environments, and at least IP6X / IP64 for Category 3D (Ex tc) dust environments.
• The operating location must comply with Pollution Degree 2 or better per IEC 60664-1.
• Transient overvoltage protection must be set to prevent supply surges exceeding 140% of the rated peak voltage.
• In explosive atmospheres, terminal connections for the 24 V supply, SIA (Safety Shutdown), EVS (External Valve Voltage Shutdown), and digital inputs must only be connected or disconnected in a completely de-energized state.

HotSwap Restrictions in Hazardous Atmospheres

HotSwap valve replacement under pneumatic supply pressure is strictly prohibited while an explosive atmosphere is present. Valve extraction or insertion using the HotSwap mechanism is permitted only when verified non-hazardous by calibrated atmospheric testing instruments.

Nameplate Data and Ex Markings

Units certified for hazardous areas carry two plates: a standard technical rating plate and an Ex approval marking plate.

Standard Rating Plate Reference

Position	Description	Value / Identification
1	Device Type	Type 8652 AirLINE
2	Pressure Range	3 to 10 bar
3	Ambient Temperature Range	-10 °C to +55 °C
4	Rated Voltage / Current Consumption	24 V DC / 3 A
5	Serial Number	Factory designated (S/N)
6	Manufacturing Code	Factory encoded (e.g. W14AL)
7	Device Order Number	20031840

Hazardous Area Approval Identifiers

Designation	Certification Code / Data
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
CCC Compliance	GB/T 3836.2021 (certified via SITIIAS)
Production Monitoring	PTB (CE0102)
Supplementary Warning Label	WARNING DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED