BURKERT 20091551 (Type 8652 AirLINE) is a 24-station pneumatic valve island engineered for process automation, pre-assembled on an anodised aluminium AirLINE Quick adapter plate. It is equipped with Industrial Ethernet communication supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic over dual RJ45 ports, operating on a 24 V DC supply with an IP20 ingress protection rating.

All 24 valve positions are populated with 5/3-way servo-controlled solenoid valves with circuit function CF-N (middle position ventilated/exhausted). The unit integrates an intermediate pneumatic feed module to ensure uniform air delivery across high-density valve banks, utilizing push-in brass connectors sized at D10 mm for main air supplies and D6 mm for process actuator lines.

Valve Island Setup and Station Allocation

Article 20091551 provides a fully equipped 24-slot pneumatic block. Each station utilizes an 11 mm width Type 6534 pilot valve assembly with manual override.

Specification Parameter	Value / Assignment
Number of Valve Slots	24 PCE
Valve Positions 1 to 24	5/3-way middle position ventilated CF-N (Type 6534)
Modular Variant	Fieldbus module with ME43 architecture
Supply Connection Port Size	Push-in connector D10 mm
Supply Connection Material	Brass
Working Port Size (2 and 4)	Push-in connector D6 mm
Working Port Material	Brass
AirLINE Quick Plate Material	Anodised aluminium
Auxiliary Pilot Air	Internal (pilot pressure 3 to 10 bar)
Intermediate Supply Left	Push-in connectors D6 and D10
Intermediate Supply Middle	Push-in connectors D6 and D10
Intermediate Supply Right	Without additional supply
Intermediate Feed Quantity	1 PCE integrated between valve blocks
Digital Input Modules (DI)	0 (El. modules 1 through 6 not fitted)
Integrated Check Valves	None in duct 3 (R) or 5 (S)
Pneumatic HotSwap in Port 1 (P)	No

Station Configuration Details

Every valve position from slot 1 through slot 24 operates with circuit function N. In the de-energised middle position, working ports 2 and 4 are vented to atmosphere through the exhaust channels. Each valve station provides a nominal air flow rate QNn of 300 l/min at 6 bar supply pressure and 1 bar differential pressure.

Technical Data and Operating Parameters

Category	Parameter	Source Specification
Operating Pressures	Nominal Pressure Range	Vac to 10 bar (-1.0 bar to 10.0 bar)
	Pilot Pressure (Auxiliary)	3.0 bar to 10.0 bar
Flow Capacity	Nominal Flow Rate QNn (Air)	300 l/min (CF-N, measured according to ISO 12238)
Electrical Specifications	Operating Voltage	24 V DC (±10 % tolerance, residual ripple 1 Vss)
	Nominal Power per Valve	0.7 W initial pick-up (0.175 W after electronic power reduction)
	Nominal Current per Valve	29 mA pick-up (10 mA holding current after reduction)
	Electrical Protection Class	Class III according to DIN EN 61140, VDE 0140
	Nominal Operating Mode	Continuous operation (100 % duty cycle)
Fluid Media	Operating Medium	Compressed dry air (lubricated or unlubricated), neutral gases
	Quality Class	ISO 8573-1: 2010, Class 7.4.4 (5 µm pre-filtering recommended)
Temperature Limits	Medium Temperature	-10 °C to +55 °C
	Ambient Operating Temperature	-10 °C to +55 °C
	Storage Temperature	-20 °C to +60 °C
Materials	Valve Body	PA (Polyamide)
	Seals	NBR and PUR
	AirLINE Quick Adapter Plate	Anodised aluminium
	Pneumatic Connectors	Brass
Enclosure & Standards	Ingress Protection	IP20 (IP65 when installed in sealed control cabinet)
	Certification	cULus Listed (UL 61010-1, CAN/CSA-C22.2 No. 61010-1)

AirLINE Quick Adapter System

The AirLINE Quick adapter interface attaches directly into cutouts in the control cabinet floor or wall. By routing all pneumatic connections through an anodised aluminium bottom plate, external bulkhead couplings and internal interconnecting tubing are eliminated.

AirLINE Quick Feature	Specification for Article 20091551
Adapter Plate Material	Anodised aluminium
Pneumatic Supply / Exhaust Ports	Push-in connector D10 mm, brass
Pneumatic Working Ports	Push-in connector D6 mm, brass
Mounting Orientation	Control cabinet floor or control cabinet wall
Space Savings	Replaces individual bulkhead fittings; enables compact cabinet envelopes

Dimensions and Installation Geometry

Article 20091551 corresponds to the 24-fold pneumatic valve island variant configured with an intermediate supply module.

Dimension Variable	Source Value (mm)	Description
A	156 mm	Distance to first mounting coordinate group
B	312 mm	Total longitudinal mounting center span
C	10 x M5	Fastening thread specification for cabinet base mounting
D	158.3 mm	Intermediate supply module location offset
m	11	Number of valve stations in primary block
m'	11	Number of valve stations in secondary block
n	6	Structural support rib index
Station Width	11 mm per station	Pitch per pneumatic valve slot

Control Cabinet Installation

When mounting the valve terminal to the control cabinet base, use the dedicated M5 x 10 A2 DIN 6912 screw sets (Article no. 308661). Ensure sufficient clearance to the front door and rear wall of the enclosure to permit clear visibility of the LC display and unobstructed access to pneumatic tubing.

Electrical Connections and Fieldbus Interface

Electrical connections are separated into distinct supply paths for communication/display logic and solenoid coil actuation.

Power Supply for Communication and Displays

Logic power and internal büS communication are connected via a 5-pin spring-loaded terminal connector (conductor cross-section ≤ 1.5 mm²):

Terminal	Lead Colour	Pin Assignment
1	Red	+24 V DC (Logic Supply)
2	White	CAN_H (büS connection)
3	Green	SHIELDING
4	Blue	CAN_L (büS connection)
5	Black	GND (Logic Ground)

Power Supply for Pneumatic Valves

The interface plate incorporates a dedicated 2-pin spring-loaded terminal for solenoid coil power:

Terminal Pin	Clip Identifier	Lead Colour	Assignment
1	Clip 1	Red	AUX +24 V DC (Valve Power)
2	Clip 2	Black	GND (Valve Ground)

Industrial Ethernet Interface (RJ45 X1 / X2)

The fieldbus interface accommodates Industrial Ethernet networks (PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, CC-Link IE Field Basic) via dual RJ45 sockets:

RJ45 Pin	Signal Assignment	Functional Description
Pin 1	TX+	Transmit Data positive
Pin 2	TX-	Transmit Data negative
Pin 3	RX+	Receive Data positive
Pin 4	N.C.	Not connected
Pin 5	N.C.	Not connected
Pin 6	RX-	Receive Data negative
Pin 7	N.C.	Not connected
Pin 8	N.C.	Not connected

Industrial Ethernet Network Architecture

Industrial Ethernet Communication

The onboard ME43 gateway architecture allows the Type 8652 valve island to function as an Industrial Ethernet master island, networking downstream büS/CANopen valve islands or sensors within a centralized cabinet topology. Protocol parameter files must be loaded via the Bürkert Communicator software Type 8920 prior to plant start-up.

Replacement Valves and System Accessories

Compatible Replacement Valves (Type 6534)

Each valve slot on article 20091551 accepts modular Type 6534 solenoid valves. While all 24 slots are factory fitted with circuit function N, other functions can be interchanged on the manifold sub-base:

Circuit Function	Valve Type	QNn Air [l/min]	Pressure Range [bar]	Opening / Closing Time [ms]	Article No. (incl. screw)	Spare Part Set Article No.
CF N	5/3-way, middle position exhausted	300	Vac to 10	20 / 20	301381	REF_296039
CF M	5/3-way, middle position ventilated	300	Vac to 10	20 / 20	301379	REF_296035
CF L	5/3-way, middle position closed	275	Vac to 10	15 / 15	301380	REF_296036
CF H	5/2-way servo-controlled	290	Vac to 10	20 / 25	301376	REF_296033
CF Z	5/2-way impulse (bistable)	290	Vac to 10	20 / 25	301377	REF_296034
CF C	3/2-way NC servo-controlled	270	Vac to 10	15 / 15	20102334	REF_20088974
CF C	2 x 3/2-way NC servo-controlled	270	Vac to 10	15 / 15	301374	REF_296031
CF D	2 x 3/2-way NO servo-controlled	310	Vac to 10	15 / 15	301375	REF_296032
Dummy	Blanking plate for unused station	-	-	-	335779	REF_327614

Dedicated Accessories for 24-Fold AirLINE Quick

Accessory Description	Configuration	Quantity	Article No.
AirLINE Quick Height Adapter	24-fold with intermediate feed	1 PCE	754964
AirLINE Quick Retaining Plate	24-fold with intermediate feed (cabinet exterior)	1 PCE	60005570
AirLINE Quick Blind Plate	24-fold with intermediate feed	1 PCE	754969
Mounting Screw Set	M5 x 10 A2 DIN 6912 (cabinet base fastening)	10 PCE	308661
5-Pin Spring-Loaded Terminal	Logic & büS power supply connector	1 PCE	920180
2-Pin Spring-Loaded Terminal	Solenoid valve power supply connector	1 PCE	920442
USB büS Interface Set 1	Type 8923 with M12/micro-USB cables and power supply	1 SET	772426
USB büS Interface Set 2	Type 8923 with M12 connection cable, Y-distributor	1 SET	772551

Approvals and Compliance Guidelines

Article 20091551 is certified as cULus Listed under standards UL 61010-1 and CAN/CSA-C22.2 No. 61010-1 for general electrical measurement and control equipment.

Hazardous Area Application Notice

When Type 8652 valve islands are supplied with explosion protection options (such as order codes PU17 or PX68 for ATEX/IECEx Zone 2/22 or cURus HazLoc Class I Div 2), electrical terminals and Hot Swap connections must never be connected or disconnected while energized unless the surrounding atmosphere is confirmed to be non-hazardous. For Zone 2 (gas) installations, the assembly must reside in an enclosure rated at least IP54; for Zone 22 (dust), the enclosure rating must be at least IP6X.