BURKERT 20092097 (Type 8652) is an AirLINE pneumatic valve island configured for process automation environments. Built with a 4-slot base architecture, article 20092097 is factory-equipped with two 5/2-way monostable pilot valves (Circuit Function H) in valve positions 1 and 2, while valve positions 3 and 4 are fitted with blanking plates. Communication is handled by an integrated Industrial Ethernet fieldbus interface supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic via two RJ45 ports. The mechanical connection is established using an anodised aluminium AirLINE Quick adapter plate designed for direct mounting to the floor or wall of a control cabinet, venting exhaust air directly outside the cabinet enclosure.

Type 8652 incorporates integrated check valves in exhaust ducts 3 (R) and 5 (S) to prevent back-pressure peaks from inadvertently switching unactuated process valves. Pneumatic HotSwap technology in supply channel 1 (P) enables valve replacement during active operation under system pressure without process interruption. The illuminated LC display visualises valve switching states, pneumatic supply pressures, device status, and NAMUR NE 107 diagnostic messages in clear text and standardized symbols.

Factory Configuration (Article 20092097)

Article 20092097 provides a pre-assembled, fully tested 4-slot valve terminal setup:

Feature	Specification
Article Number (Identcode)	20092097
Base Valve Island Type	8652 AirLINE Standard
Total Number of Valve Slots	4
Valve Slot Position 1	5/2-way monostable solenoid valve, Circuit Function H (CF-H)
Valve Slot Position 2	5/2-way monostable solenoid valve, Circuit Function H (CF-H)
Valve Slot Position 3	Blind plate (dummy valve)
Valve Slot Position 4	Blind plate (dummy valve)
Adapter Plate Execution	AirLINE Quick, anodised aluminium
Compressed Air Supply Connection (Port 1)	Push-in connector D10 mm, nickel-plated brass
Working Line Connections (Ports 2 & 4)	Push-in connector D6 mm, nickel-plated brass
Auxiliary Pilot Air Supply	Internal feed from main air supply
Intermediate Supply Modules	None (0 intermediate feeds)
Digital Input (DI) Module	Not fitted (0 digital inputs)
Safety Shut-off Variant	Standard 24 V interface plate without SIA shut-off
Integrated Check Valves	Fitted in exhaust ducts 3 (R) and 5 (S)
Pneumatic HotSwap Function	Integrated in pressure channel 1 (P)

General Technical Data

Technical Parameter	Value
Body Material	Polyamide (PA)
Seal Material	NBR and PUR
Station Width	11 mm per valve slice
Operating Pressure Range	-1.0 bar to 10.0 bar (vacuum to 10 bar)
Auxiliary Pilot Pressure Range	3.0 bar to 10.0 bar
Nominal Flow Rate QNn (Air)	310 l/min (at +20 °C, 6 bar inlet pressure, 1 bar pressure drop)
HotSwap Flow Reduction	Flow reduced by approx. 3% when HotSwap check valve is fitted
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
Operating Voltage	24 V DC (tolerance ±10%)
Residual Ripple	1 Vss
Nominal Power per Valve	0.7 W (drops to 0.175 W after electronic power reduction)
Nominal Current per Valve	29 mA (drops to 10 mA after electronic power reduction)
Duty Cycle / Mode of Operation	100% continuous operation (ED)
Switching Time Measurement	Measured according to ISO 12238 standard
Ambient Temperature Range	-10 °C to +55 °C
Storage Temperature Range	-20 °C to +60 °C
Mounting Position	Any orientation
Electrical Protection Class	Class III according to DIN EN 61140, VDE 0140
Ingress Protection Rating	IP20 standalone; up to IP65 inside closed control cabinets with AirLINE Quick

AirLINE Quick Adapter Plate

AirLINE Quick allows direct mechanical coupling of Type 8652 to a cutout in the control cabinet floor or wall. Pneumatic supply and exhaust connections, as well as the working lines leading to the field actuators, pass directly through the bottom plate. This configuration eliminates intermediate bulkhead fittings, simplifies internal pneumatic tubing, and prevents exhaust air venting inside the electrical enclosure.

• Reduced cabinet volume requirements allow smaller enclosure form factors.
• All pneumatic tubing connects from the exterior cabinet base.
• Cutout sealing delivers IP65 ingress protection for the control cabinet interior.

Circuit Function H (5/2-Way Monostable)

Positions 1 and 2 of article 20092097 utilize Type 6534 pilot valves operating under Circuit Function H (CF-H). Circuit Function H is a servo-assisted 5/2-way valve equipped with a mechanical manual override (latching and spring return).

When pressure is applied to port 1, supply air is directed to either working port 2 or port 4 depending on the electrical actuation state. De-energizing the pilot solenoid returns the spool to its initial rest state via mechanical spring return, venting the active working line through exhaust port 3 or 5.

Flow and Pressure Limits

For vacuum operation or main working pressures below 3 bar, separate auxiliary pilot air at 3 to 10 bar must be supplied to ensure pilot valve actuation. Because 20092097 uses internal pilot air, the main supply pressure on port 1 must be maintained between 3 and 10 bar during normal switching operation.

Dimensions and Control Cabinet Installation

Terminal Variant	Dimension A [mm]	Dimension B [mm]	Dimension C (Fastening)	m	n
4-fold (20092097)	66	—	4 × M5	3	1
8-fold	35	111	8 × M5	7	2
12-fold	77	154	10 × M5	11	3

Standard rail installation complies with EN 50022 (35 × 7.5 mm or 35 × 15 mm DIN rails). When using the AirLINE Quick base, the valve terminal attaches using M5 screws.

HotSwap Installation Clearance

To enable unhindered removal and replacement of valve slices under pressure using the HotSwap function, maintain the minimum specified clearance between the valve island front surface and the front door or edge of the control cabinet during panel layout.

Electrical and Fieldbus Connections

Type 8652 provides separate electrical connections for electronic communication/display power and pneumatic valve actuation power. Separate circuits allow the pneumatic outputs to be isolated while maintaining continuous fieldbus communication.

Power Supply for Communication and Displays

Connection is made via a 5-pin spring-loaded terminal block (wire cross-section ≤ 1.5 mm²):

Terminal	Wire Colour Code	Signal Assignment
1	Red	+24 V DC
2	White	CAN_H (büS interface)
3	Green	Shielding
4	Blue	CAN_L (büS interface)
5	Black	0 V DC (GND)

Power Supply for Pneumatic Valves

The 24 V interface plate features a dedicated 2-pin spring-loaded terminal block:

Terminal Clip	Wire Colour Code	Signal Assignment
1	Red	AUX +24 V DC (Valve Power)
2	Black	0 V DC (GND)

Industrial Ethernet Interface (X1 and X2 RJ45)

Article 20092097 includes the ME43 Industrial Ethernet gateway module. Two RJ45 connectors (ports X1 and X2) support line and ring topologies for PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic:

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

Diagnostics and Network Architecture

The integrated LC display provides on-device visualization of valve position counters, line pressure status, supply voltage levels, and diagnostic error codes. Diagnostic data conforms to NAMUR NE 107 recommendations, outputting failure, function check, out of specification, and maintenance required indicators.

Article 20092097 can act as an Industrial Ethernet master node on an automation network, interconnecting downstream büS-equipped Burkert devices such as Type 8652 slave islands, Type 2012 process control valves, and Type 8697 pneumatic control heads. Device commissioning, parameter assignment, and diagnostic mapping are performed using Bürkert Communicator software (Type 8920) over an EDIP USB-büS interface.

Explosion Protection and Hazardous Area Restrictions

When installed with compatible approved modules, Type 8652 complies with European and international explosion protection standards for Category 3 equipment:

• ATEX: BVS 20 ATEX E 031 U, II 3G Ex ec IIC Gc, II 3D Ex tc IIIC Dc
• IECEx: IECEx BVS 20.0024 U, Ex ec IIC Gc, Ex tc IIIC Dc
• North America: 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
• CCC: Certified according to GB/T 3836 series standards for explosive atmospheres

Hazardous Area Operating Conditions

• Enclosure requirements: Type 8652 must be installed inside an enclosure providing at least IP54 protection for gas atmospheres (Ex ec) and at least IP6X protection for dust atmospheres (Ex tc) in pollution degree 2 environments.
• Live connection restrictions: Do not connect or disconnect electrical spring terminals or cable connectors under voltage when an explosive atmosphere is present.
• HotSwap restrictions: Replacing valves using the pneumatic HotSwap function is strictly prohibited in the presence of an explosive atmosphere unless the area has been verified as non-hazardous using appropriate test instrumentation.

Ordering and Replacement Parts

Component Description	Order Article Number
Type 8652 4-Bank Valve Island, 2x CF-H, 2x Blind Plate, Industrial Ethernet (Complete Unit)	20092097
Type 6534 Solenoid Valve CF-H (5/2-way, 24 V DC, 290 l/min, with screws)	301376
Blind Plate (Dummy Valve) for unpopulated slots	335779
Fieldbus Gateway Module Type ME43 (Industrial Ethernet)	301799
5-pin Spring-Loaded Terminal Block (Display & Communication Power)	920180
2-pin Spring-Loaded Terminal Block (Pneumatic Valve AUX Power)	920442
Fastening Screw Set M5 × 10 A2 DIN 6912 (10 pieces)	308661
Height Adapter for 4-fold Base without intermediate feed	60031491
Retaining Plate for 4-fold Base (cabinet exterior)	60005571
USB büS Interface Set 1 (Type 8923) for Bürkert Communicator	772426