BURKERT 20129632 (Type 8652) is an electropneumatic AirLINE valve island configured with 16 valve slots, designed specifically for process automation environments. Every valve slot from position 1 through 16 is populated with a 5/2-way monostable Type 6534 solenoid valve (circuit function H). The unit integrates an AirLINE Quick adapter plate manufactured from anodised aluminium, enabling direct installation through the floor or wall of a control cabinet. All pneumatic connection lines pass through the cabinet wall, isolating the internal electronic modules and fieldbus interface from process lines while achieving IP65 enclosure integrity when mounted in an appropriate cabinet.

Diagnostic information and active statuses are visualised directly on the built-in LC display in plain text and symbols. These status messages are mirrored over the industrial communication link directly to the supervisory PLC. Process reliability features include integrated check valves in exhaust ducts 3 (R) and 5 (S) to suppress pressure peaks, as well as a pneumatic HotSwap mechanism in supply port 1 (P) that permits replacement of individual valve slices while the manifold remains pressurized.

Technical Specifications

Parameter	Value
Number of Valve Stations	16 PCE
Station Pitch / Width per Station	11 mm
Valve Configuration (Positions 1 to 16)	5/2-way monostable, circuit function H (CF-H)
Pilot Valve Type	Type 6164 pilot control elements
Body Material	Polyamide (PA)
Seal Materials	NBR and PUR
AirLINE Quick Adapter Material	Anodised aluminium
Supply Port 1 (P) Connection	Push-in D10 mm (brass)
Working Ports 2 (B) and 4 (A)	Push-in D6 mm (brass)
Auxiliary Supply Port (Left)	G 1/4" and M7 threaded ports
Nominal Operating Pressure Range	-1.00 bar to 10.00 bar (Vacuum to 10 bar)
Auxiliary Pilot Air Pressure	3.00 bar to 10.00 bar (internal feed)
Nominal Flow Rate QNn (Air)	290 l/min (at +20 °C, 6 bar inlet, 1 bar Δp)
HotSwap Flow Impact	Approx. 3% flow reduction
Operating Voltage	24 V DC (±10%, residual ripple 1 Vss)
Power Consumption per Valve	0.7 W nominal (0.175 W after power reduction)
Nominal Current per Valve	29 mA (10 mA after power reduction)
Operating Mode	Continuous operation (100% ED)
Total Digital Inputs	32 DI (4 modules x 8 DI)
Ingress Protection	IP20 standalone; IP65 inside closed cabinet via AirLINE Quick
Medium and Ambient Operating Temperature	-10 °C to +55 °C
Storage Temperature	-20 °C to +60 °C
Medium Specification	Lubricated or oil-free dry compressed air, neutral gases (ISO 8573-1:2010, Class 7.4.4, 5 μm filter recommended)

Mechanical Assembly and AirLINE Quick Interface

The AirLINE Quick system minimizes wiring and tubing runs inside electrical enclosures. Instead of routing 32 working pneumatic lines and main supply headers within the cabinet interior, the anodised aluminium adapter plate is secured to a cutout in the cabinet floor or side panel. The pneumatic connections (D10 mm push-in for supply, D6 mm push-in for working ports) seat externally on the adapter block, while the valve island mechanics and electrical interface remain clean and dry inside.

AirLINE Quick Advantages

• Eliminates internal cabinet tubing bundles for all 16 valves.
• Allows reduced cabinet footprint by utilizing floor-mounted pass-through cutouts.
• Provides ingress protection up to IP65 across the mounting aperture.

Fieldbus Communication and Digital Inputs

BURKERT 20129632 incorporates an integrated fieldbus gateway module supporting Industrial Ethernet multi-protocol operation. The interface supports PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic via two RJ45 female ports labeled X1 and X2.

Industrial Ethernet RJ45 Pin Assignment (X1 / X2)

Pin	Signal Assignment
1	TX+
2	TX-
3	RX+
4	Not connected (N.C.)
5	Not connected (N.C.)
6	RX-
7	Not connected (N.C.)
8	Not connected (N.C.)

Power Supply Terminal Assignments

Power supply connections for the electronic logic/fieldbus gateway and the solenoid coil circuits are physically separated to support independent emergency stop routing:

Connector	Pin	Wire Colour	Assignment
5-pin spring terminal (Logic & büS)	1	Red	+24 V DC (Communication and display)
	2	White	CAN_H (büS interface)
	3	Green	Shielding
	4	Blue	CAN_L (büS interface)
	5	Black	0 V DC (GND)
2-pin spring terminal (Valve Power)	1	Red	AUX +24 V DC (Pneumatic valve supply)
	2	Black	0 V DC (GND)

Integrated Digital Inputs (32 DI Configuration)

BURKERT 20129632 includes four 8DI electronic modules, providing a total of 32 digital input channels to read back end-position sensors or external switches directly over the network bus.

Parameter	Specification
Number of Channels	32 inputs (4 modules x 8 channels)
Supported Sensor Types	2-wire sensors, 3-wire sensors, mechanical limit switches
Switching Thresholds	V_OFF = 0 to 5 V DC; V_ON = 10 to 30 V DC
Input Current at V_ON	Max. 5.7 mA per channel (typical 24 V DC)
Input Impedance	> 4 kΩ
Sensor Supply	24 V DC from module, current limited to 30 mA per input
Galvanic Isolation	No (common reference potential across all channels)
Maximum Cable Length	< 30 m (conductor cross-section ≤ 1.5 mm²)
Diagnostics Available	Wire-break detection (2-wire sensors); short-circuit detection (3-wire sensors)

Dimensions and Enclosure Mounting

For the 16-valve variant without intermediate supply modules (standard configuration of 20129632):

• Dimension A: 99 mm
• Dimension B: 198 mm
• Fastening holes C: 10 x M5
• Pitch increments m: 15
• Station count n: 4

Installation Clearance for Hot Swap

When mounting inside a control cabinet, maintain the required clearance between the front edge of the valve island and the cabinet door/frame. This allows individual Type 6534 valve slices to tilt forward and unseat cleanly from the pneumatic base during live maintenance without mechanical interference.

Hazardous Area Approvals and Operational Conditions

Type 8652 is certified for hazardous environment use under ATEX and IECEx Zone 2/22 as well as North American Class I, Division 2 / Zone 2 standards when enclosed properly:

• ATEX Certificate: BVS 20 ATEX E 031 U, II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc
• IECEx Certificate: IECEx BVS 20.0024 U, Ex ec IIC Gc / Ex tc IIIC Dc
• CCC Ex: GB/T 3836
• cURus HazLoc: Class I, Zone 2, AEx ec IIC Gc; Class II, Zone 22, AEx tc IIIC Dc; Class I, Division 2, Groups A, B, C, D; Class II/III, Division 2, Groups F, G

Hazardous Area Operational Restrictions

• Enclosure Requirement: Install inside an enclosure rated at least IP54 for gas atmospheres (3G/Gc) and at least IP64/IP6X for conductive dust atmospheres (3D/Dc) according to EN/IEC 60079-0, 60079-7, and 60079-31.
• Transient Overvoltage: Supply line transient suppression must be configured so that transient disturbances do not exceed 140% of the peak rated voltage.
• De-energized Disconnection: In potentially explosive atmospheres, the 24 V DC power supply, communication plugs, and digital input connectors must not be connected or disconnected while energized.
• Live HotSwap Restriction: Pneumatic hot swapping of valve slices is prohibited in explosive atmospheres unless the area is verified to be non-hazardous via appropriate atmospheric testing instruments.

Replacement Components and Accessories

Component Description	Details / Application	Article No.
Replacement Valve Type 6534 CF-H	5/2-way monostable solenoid valve, 24 V DC, 290 l/min (Ref. 296033)	301376
Valve Blanking Plate	Seals unused positions when a valve slice is removed (Ref. 327614)	335779
8DI Electronic Module	Replacement module with 8 digital inputs for Type 8652	384872
5-Pin Spring-Loaded Terminal	Pluggable connector for logic power and büS communication	920180
2-Pin Spring-Loaded Terminal	Pluggable connector for pneumatic valve power supply (AUX 24 V)	920442
AirLINE Quick Screw Set	10x M5 x 10 A2 DIN 6912 fasteners for cabinet base mounting	308661
Height Adapter (16-fold without feed)	Mechanical height compensation plate for 16-valve baseplate	60041928
Retaining Plate (16-fold without feed)	Exterior cabinet mounting bracket for 16-valve baseplate	60005880
Blind Plate (16-fold without feed)	Blanking cover plate for cabinet cutout	60041929