BURKERT 20024803 (Type 8652) is a 24-station AirLINE pneumatic valve island configured with a stainless steel AirLINE Quick adapter plate, PROFIBUS DPV1 communication interface, and 48 digital inputs distributed across 6 electronic display modules. All 24 valve slots are fully populated with dual 3/2-way normally closed solenoid valves (Circuit function C), providing 48 independently actuated pilot channels for process automation systems. The assembly is optimized for direct cabinet floor or wall mounting, routing compressed air connections directly through the panel boundary via push-in stainless steel fittings.

Specific Configuration of Article 20024803

Article 20024803 represents an AirLINE 8652 24-bank ALQ VA assembly factory-configured with the following specific hardware and communication properties:

Configuration Property	Factory Specification
Article Number	20024803
Base Model Family	Type 8652 AirLINE
Number of Valve Slots	24 PCE
Valve Positions 1 to 24	Dual 3/2-way normally closed, CF-C (2x 3/2-way CF-C per slot, 48 total valve channels)
Fieldbus Module Protocol	PROFIBUS DPV1
Hardware Communication Interface	Sub-D 9-pin socket
Digital Input Equipping	48 Digital Inputs (Modules 1 to 6 equipped with DI: Yes)
AirLINE Quick Plate Material	Stainless steel 1.4301 (ALQ VA)
Supply Port Connection Size	Push-in connector D10 mm
Working Port Connection Size	Push-in connector D6 mm
Pneumatic Port Materials	Stainless steel 1.4401 (working and supply ports)
Auxiliary Pilot Air Mode	Internal pilot air supply
Intermediate Air Feed	1 PCE intermediate feed module included
Additional Supply Connections	Left: Push-in D6 and D10; Right: Without; Middle: Without
Integrated Check Valves (Ports 3/5)	No
Pneumatic HotSwap in Port 1 (P)	No
Protection Rating	IP20 standalone; IP65 mounted in enclosed cabinet

Technical Specifications

Type 8652 operates with filtered compressed air according to ISO 8573-1:2010 Class 7.4.4. The manifold uses polyamide body construction with NBR and PUR seals.

Technical Parameter	Specified Value
Manifold Body Material	PA (Polyamide)
Sealing Material	NBR and PUR
Station Width	11 mm per valve slice
Maximum Controllable Valve Channels	Up to 48 functions
Operating Pressure Range	-1.0 bar to 10.0 bar (vacuum to 10 bar)
External Auxiliary Pilot Air Pressure	3.0 bar to 10.0 bar
Nominal Flow Rate $Q_{\text{Nn}}$ (Air)	310 l/min (at +20 °C, 6 bar inlet, 1 bar differential)
Flow Rate with HotSwap Option	Approx. 3% flow reduction
Operating Duty Cycle	100% continuous operation (ED)
Operating Voltage	24 V DC (±10% tolerance, 1 Vss maximum residual ripple)
Power Consumption per Valve	0.7 W nominal (0.175 W after electronic power reduction)
Current Draw per Valve	29 mA nominal (10 mA after power reduction)
Electrical Protection Class	Class III per DIN EN 61140, VDE 0140
Operating Medium	Oil-free or lubricated dry compressed air, neutral gases (5 µm filtration recommended)
Compressed Air Quality Class	ISO 8573-1:2010 Class 7.4.4
Ambient Operating Temperature	-10 °C to +55 °C
Storage Temperature	-20 °C to +60 °C
Mounting Orientation	Any

Pilot Air Requirement

For standard internal pilot operation, the main supply line pressure must provide a minimum of 3.0 bar to maintain pilot valve operation.

AirLINE Quick Adapter Plate

The AirLINE Quick adapter plate integrates pneumatic bulkhead feedthroughs into the base of the valve island. This configuration mounts directly into a cutout in the cabinet floor or cabinet wall, eliminating individual panel-feedthrough fittings and internal tubing runs.

Component Feature	Specification Details
Adapter Plate Material	Stainless steel 1.4301 (or anodized aluminum)
Pneumatic Port Materials	Stainless steel 1.4401 (or nickel-plated brass)
Available Station Capacities	8, 16, 24, 32, 40, and 48 valve functions
Supply and Exhaust Ports (1, 3, 5)	Push-in connector D10 mm (or 3/8")
Working Ports (2, 4)	Push-in connector D6 mm (or 1/4")
Mounting Location	Control cabinet floor or control cabinet wall

Cabinet Space Optimization

Mounting the valve island with the AirLINE Quick plate directly on the control cabinet floor significantly reduces cabinet volume and installation labor by allowing all pneumatic hoses to connect externally.

Circuit Function and Solenoid Pilot Valves

Article 20024803 is fully fitted with Circuit Function C across all 24 slots. Each slot contains two 3/2-way servo-controlled normally closed pilot valves based on Type 6534/6164 technology.

Circuit Function Symbol	Function Description	Orifice Size	Nominal Flow $Q_{\text{Nn}}$	Pressure Range	Response Time Open / Close
CF C (WW C): 2x 3/2-way	Dual 3/2-way solenoid valve, servo-controlled, normally closed, manual override	4 mm	270 l/min	Vac. to 10 bar (pilot 3 to 10 bar)	15 ms / 15 ms

Other Available Circuit Functions in Type 8652 Series

• CF C (Single 3/2-way): Servo-controlled, normally closed, 270 l/min, switching times 15 ms / 15 ms.
• CF D (Dual 3/2-way): Servo-controlled, normally open, 310 l/min, switching times 15 ms / 15 ms.
• CF H (5/2-way): Servo-controlled, pressure applied via port 1, 290 l/min, switching times 20 ms / 25 ms.
• CF Z (5/2-way): Bistable impulse variant with 2 coils and manual override, 290 l/min, switching times 20 ms / 25 ms.
• CF L (5/3-way): Servo-controlled, middle position all ports locked, 275 l/min, switching times 15 ms / 15 ms.
• CF M (5/3-way): Servo-controlled, middle position ports 2 and 4 pressurized, 300 l/min, switching times 20 ms / 20 ms.
• CF N (5/3-way): Servo-controlled, middle position ports 2 and 4 exhausted, 300 l/min, switching times 20 ms / 20 ms.

Dimensional Data

Dimensions are stated in millimeters. Article 20024803 utilizes a 24-valve configuration with an intermediate supply module.

Variant Configuration	Dimension A (mm)	Dimension B (mm)	Fastening C	Dimension D (mm)	m	m'	n
16-fold with intermediate supply	112	224	10 x M5	114.3	7	7	4
20-fold with intermediate supply	134	268	10 x M5	158.3	11	7	5
24-fold with intermediate supply (20024803)	156	312	10 x M5	158.3	11	11	6
16-fold without intermediate supply	99	198	10 x M5	—	15	—	4
20-fold without intermediate supply	121	242	10 x M5	—	19	—	5
24-fold without intermediate supply	143	286	10 x M5	—	23	—	6

For 4-, 8-, and 12-fold variants without intermediate supply, mounting dimensions are:

• 4-fold: A = 66 mm, B = —, C = 4 x M5, m = 3, n = 1.
• 8-fold: A = 35 mm, B = 111 mm, C = 8 x M5, m = 7, n = 2.
• 12-fold: A = 77 mm, B = 154 mm, C = 10 x M5, m = 11, n = 3.

Electrical Connections and Fieldbus Pinout

Type 8652 separates the power supply for the electronic communication and displays from the coil drive circuit supplying the pneumatic valves.

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

• Permissible conductor cross-section: $\le 1.5\text{ mm}^2$
• Pin 1 (Red): 24 V DC
• Pin 2 (White): CAN_H (büS connection)
• Pin 3 (Green): Shielding
• Pin 4 (Blue): CAN_L (büS connection)
• Pin 5 (Black): GND (0 V DC)

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

• Terminal 1 (Red): AUX 24 V DC
• Terminal 2 (Black): GND (0 V DC)

Power Isolation

Always feed the communication electronics (24 V DC) and the valve actuation coils (AUX 24 V DC) from dedicated lines to prevent inductive load switching interference from disturbing fieldbus communications.

PROFIBUS DPV1 Interface (D-Sub 9-Pin Socket)

Article 20024803 communicates over PROFIBUS DPV1 via a standard Sub-D 9-pin connector.

Pin	PROFIBUS DPV1 Signal Assignment
1	Shielding / Protective Ground
2	M24 (optional)
3	RxD / TxD-P (B line)
4	CNTR-P (control signal, optional)
5	DGND (data ground)
6	+5 V (supply voltage for bus terminating resistor)
7	+24 V (optional)
8	RxD / TxD-N (A line)
9	CNTR-N (control signal, optional)

Electronic Display Modules with Digital Inputs (8DI)

Article 20024803 includes 6 display modules with integrated 8-channel digital inputs (48 DI channels total). Each input provides a 24 V sensor supply limited to 30 mA maximum per channel.

Technical Parameter	Specification
Supported Sensor Types	2-wire sensors, 3-wire sensors, mechanical potential-free switches
Switching Threshold	$V_{\text{OFF}} = 0\text{ to }5\text{ V}$, $V_{\text{ON}} = 10\text{ to }30\text{ V}$
Input Current at $V_{\text{ON}}$	Maximum 5.7 mA per channel (typical at 24 V DC)
Input Impedance	$> 4\text{ k}\Omega$
Galvanic Isolation	No (all channels share common reference potential)
Permissible Wire Cross-Section	$0.14\text{ mm}^2\text{ to }1.5\text{ mm}^2$ (AWG 28 to 16)
Maximum Cable Length	$< 30\text{ m}$

Diagnostic Feedback by Sensor Type

Monitored Condition	3-Wire Sensor	2-Wire Sensor	Mechanical Limit Switch
Sensor Actuated	Supported	Supported	Supported
Sensor Not Actuated	Supported	Supported	Supported
Short Circuit Detection	Supported	Not supported	Not supported
Wire Break Detection	Not supported	Supported	Not supported

Replacement Components and Accessories

Individual spare parts, gateway modules, and software configuration tools available for Type 8652 include:

Replacement Solenoid Valves (Type 6534)

• CF C (Single 3/2-way NC): Article 20102334 (Spare kit REF_20088974)
• CF C (Dual 3/2-way NC, as fitted in 20024803): Article 301374 (Spare kit REF_296031)
• CF D (Dual 3/2-way NO): Article 301375 (Spare kit REF_296032)
• CF H (5/2-way single coil): Article 301376 (Spare kit REF_296033)
• CF Z (5/2-way impulse dual coil): Article 301377 (Spare kit REF_296034)
• CF L (5/3-way middle position closed): Article 301380 (Spare kit REF_296036)
• CF M (5/3-way middle position ventilated): Article 301379 (Spare kit REF_296035)
• CF N (5/3-way middle position exhausted): Article 301381 (Spare kit REF_296039)
• Dummy Valve Plate: Article 335779 (Spare kit REF_327614)

Plugs, Modules, and AirLINE Quick Hardware

• 5-pin spring-loaded terminal for bus power and display: Article 920180
• 2-pin spring-loaded terminal for pneumatic valve power: Article 920442
• Electronic display module with digital inputs: Article 384872
• Electronic display module without digital inputs: Article 384873
• Fieldbus gateway Type ME43 (PROFIBUS DP): Article 301803
• Fieldbus gateway Type ME43 (Industrial Ethernet): Article 301799
• Screw set M5 x 10 A2 DIN 6912 (10 pcs): Article 308661
• Height adapter for 24-fold with intermediate feed: Article 754964
• Retaining plate for 24-fold with intermediate feed: Article 60005570
• Blind plate for 24-fold with intermediate feed: Article 754969
• Bürkert Communicator software Type 8920 and USB büS interface set 1: Article 772426

Standards, Approvals, and Explosion Protection

When installed in an appropriate enclosure, Type 8652 configurations carry global approvals for industrial and hazardous areas:

• CE Conformity: Compliant with applicable EU directives.
• ATEX Certification: BVS 20 ATEX E 031 U, II 3G Ex ec IIC Gc, II 3D Ex tc IIIC Dc.
• IECEx Certification: IECEx BVS 20.0024 U, Ex ec IIC Gc, Ex tc IIIC Dc.
• North America: UL Listed per UL 61010-1 and CAN/CSA-C22.2 No. 61010-1. UL Recognized for Hazardous Locations: Class I, Zone 2, AEx ec IIC Gc / Ex ec IIC Gc U; Class II, Zone 22, AEx tc IIIC Dc / Ex tc IIIC Dc U; Class I, Division 2, Groups A, B, C, D; Class II/III, Division 2, Groups F, G.
• China Compulsory Certification (CCC): Certified for hazardous industrial environments.
• Enclosure Type Rating: NEMA 250 Type 4X when enclosed in a suitable cabinet with stainless steel AirLINE Quick plate.

Hazardous Area Operating Conditions

In explosive atmospheres, electrical terminal blocks (24 V, SIA, EVS, and DI) must never be plugged or disconnected while energized. Hot swapping of pneumatic valves is prohibited unless the absence of an explosive atmosphere has been verified using approved testing apparatus.