BURKERT 20120106 (Type 8652) AirLINE is a 24-bank modular pneumatic valve island engineered to control pneumatic actuators and process valves within automated process architectures. Built on an aluminium AirLINE Quick (ALQ AL) interface with brass pneumatic connections, this configured assembly incorporates 20 positions of 5/2-way monostable (CF-H) valves, one 3/2-way (CF-C) valve, and three blind plates. It integrates PROFINET S2 system redundancy over dual RJ45 hardware ports and includes six electronic input modules providing 48 digital inputs for direct feedback signal acquisition.

Operating across a nominal pressure span from -1 bar to 10 bar with pilot control pressure between 3 bar and 10 bar, the unit functions in ambient and fluid media temperatures ranging from -10 °C to +55 °C. For process continuity and safety, the assembly integrates pneumatic HotSwap functionality on supply port 1 (P), internal pilot air supply, and integrated check valves in exhaust ducts 3 (R) and 5 (S). Certified versions with order codes PU17 or PX68 comply with ATEX Directive 2014/34/EU, IECEx schemes, NEC classifications, and CCC standard GB/T 3836-2021 for Zone 2 and Zone 22 hazardous locations.

Valve Island Configuration (Ident Code 20120106)

The configured 20120106 valve island combines pneumatic valves, base plate mechanics, and fieldbus communication into a pre-tested assembly.

Configuration Parameter	Specification Value
Type Family	8652 AirLINE
Ident Number (SKU)	20120106
Total Valve Slices	24 PCE
Valve Positions 1 to 20	5/2-way monostable, circuit function H (CF-H)
Valve Position 21	3/2-way, circuit function C (CF-C)
Valve Positions 22 to 24	Blind plate (reserve positions)
Supply Port Connection	D10 push-in, Brass
Working Port Connections	D6 push-in, Brass
Adapter Plate Interface	AirLINE Quick, Aluminium
Pilot Air Configuration	Internal auxiliary pilot air
Intermediate Feed	1 PCE (no additional left, right, or middle external feeds)
Check Valves	Integrated check valves in port 3 (R) and port 5 (S)
HotSwap Capability	Pneumatic HotSwap integrated on port 1 (P)
Communication Protocol	PROFINET S2 (system redundancy)
Physical Interface	Dual RJ45 industrial Ethernet ports
Digital Inputs	48 DI total across 6 electrical input modules (8 DI each)
Enclosure Rating	IP20 (with mating connectors attached)

Terminology and Functional Definitions

The Type 8652 documentation defines technical abbreviations and system components as follows:

Term	Definition within System Documentation
Actuator / Process Valve	Pneumatic load controlled by the 8652 valve island
büS	Bürkert communication bus based on CANopen protocol architecture
EVS	External valve shutdown: closes valves in a de-energized state independently of fieldbus master signals; configurable per valve, valve module, or entire block
Potentially Explosive Atmosphere	Hazardous industrial areas subject to gas or dust explosion risks
Device / Valve Island	AirLINE Type 8652 modular valve island assembly
SIA Version	Safety Integrated Architecture version dedicated to certified safety shutdowns (refer to EVS)
Pneumatic Valve / Pilot Valve	Pneumatic spool valves integrated into the block, piloted by Type 6164 miniature solenoids

Hazardous Location Operation and Enclosure Requirements

When deployed under hazardous area supplementary specifications (options PU17 and PX68), Type 8652 must be installed within certified industrial control cabinets meeting structural environmental ratings.

• Gas Atmosphere Enclosure (Ex ec / Category 3G / Zone 2): Must be installed inside an enclosure meeting EN/IEC 60079-0 and EN/IEC 60079-7 requirements with a minimum ingress protection rating of IP54.
• Dust Atmosphere Enclosure (Ex tc / Category 3D / Zone 22): Must be installed inside an enclosure meeting EN/IEC 60079-0 and EN/IEC 60079-31 requirements with an ingress protection rating of at least IP6X (minimum IP64).
• Pollution Degree: Operation is restricted to environments with a pollution degree of at least 2 in accordance with IEC 60664-1.
• Overvoltage Transient Protection: External transient suppression must prevent line surges from exceeding 140% of the nominal peak supply voltage.
• Supply Voltage Stability: The rated 24 V DC supply must not exceed nominal voltage by more than 10% continuously, nor exceed 40% transiently.
• Outdoor Use Restriction: Outdoor operation is strictly prohibited.
• Electrostatic Precaution: Clean exterior surfaces solely using a damp or antistatic cloth to prevent electrostatic discharge in hazardous zones.

Electrical Isolation in Potentially Explosive Atmospheres

In the presence of an explosive atmosphere, terminal connections for the 24 V DC power supply, SIA, EVS, and digital inputs must only be connected or disconnected when completely de-energized. Fixed cable plugs into terminal blocks must likewise be manipulated only with connected circuits switched off. Disconnecting energized circuits risks incendiary sparking.

Special Conditions for HotSwap Operation

Pneumatic HotSwap enables replacement of individual valve slices under line pressure. Within potentially explosive atmospheres, HotSwap valve removal or insertion is strictly prohibited unless atmospheric testing instruments verify that no explosive gas or dust concentration is present throughout the entire service intervention. Only trained personnel may execute HotSwap procedures.

Hazardous Area Approvals and Marking Plates

Type 8652 AirLINE valve islands approved for hazardous zones carry two identification plates: the standard operational rating plate and an Ex compliance plate.

General Product Nameplate Structure

Position	Parameter Description	Field Data Example
1	Device Type	Type 8652 AirLINE
2	Pressure Range	3 to 10 bar (pilot control pressure)
3	Ambient Temperature Range	-10 °C to +55 °C
4	Rated Voltage / Current Consumption	24 V DC / 3 A
5	Serial Number	S/N (factory assigned)
6	Manufacturing Code	W14AL (encoded date/batch)
7	Order Code (Ident Number)	20120106 (or configured 8-digit ident)

Hazardous Area Marking Plate Layout (Code PX68)

Position	Description	Approval Data
1	Explosion Protection Logo	Community Ex hexagon mark
2	ATEX Certificate Number	BVS 20 ATEX E 031 U
3	ATEX Gas / Dust Marking	II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc
4	IECEx Certificate Number	IECEx BVS 20.0024 U
5	IECEx Gas / Dust Marking	Ex ec IIC Gc / Ex tc IIIC Dc
6	Safety Advisory Symbol	Reference to electrical disconnection and HotSwap limits

Hazardous Area Marking Plate Layout (Code PU17)

Position	Description	Approval Data
1	US/CA Zone Marking (Gas)	Cl I, ZN 2, AEx ec IIC Gc / Ex ec IIC Gc U
2	US/CA Zone Marking (Dust)	Cl II, ZN 22, AEx tc IIIC Dc / Ex tc IIIC Dc U
3	US/CA Division Marking	Cl I, Div 2, Gr A, B, C, D / Cl II, III, Div 2, Gr F, G
4	ATEX Certificate Number	BVS 20 ATEX E 031 U
5	Explosion Protection Logo	Community Ex hexagon mark
6	ATEX Gas / Dust Marking	II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc
7	IECEx Certificate Number	IECEx BVS 20.0024 U
8	IECEx Gas / Dust Marking	Ex ec IIC Gc / Ex tc IIIC Dc
9	Safety Advisory Symbol	Reference to electrical disconnection and HotSwap limits

Every hazardous location shipment includes an auxiliary adhesive warning label: WARNING DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED. If cabinet geometry obscures the primary Ex plate, this warning sticker must be affixed in a clearly visible location on the valve island.

Technical Operating Data and Permissible Configurations

Type 8652 systems comply with DEKRA testing standards (BVS 44809 Bochum) and production quality surveillance by PTB (CE 0102). China Compulsory Certification (CCC) is verified by SITIIAS in compliance with GB/T 3836-2021.

Operating Parameter	Permissible Value / Criterion
Rated Supply Voltage	24 V DC ±10%
Nominal Power	Architecture-dependent
Ambient Temperature Range	-10 °C to +55 °C
Solenoid Pilot Valves	Type 6164 (acting as pilot operators for Type 6534 main valves)
Maximum Number of Valve Slices	48 valve functions maximum
Temperature Class Compliance	T4 limit is maintained at cabinet internal ambient temperatures up to +55 °C
AirLINE Quick External Surface Temp	Maximum outer cabinet surface temperature does not exceed 80 °C

Permissible Hazardous Location Assembly Options

Under BVS 20 ATEX E 031 U and IECEx BVS 20.0024 U, permissible modular variations include combinations of up to 48 valve functions using Type 6534 pneumatic valves, Type 6534 SIA safety variants, external valve shutdown (EVS) modules, digital input electronic slices, and pressure sensor modules. Configurations with fewer than 48 valve functions dissipate less electrical power, resulting in equal or lower operating temperatures.