BURKERT 20031699 (Type 8652) is an 8-valve-slot AirLINE pneumatic valve island configured with an anodised aluminium AirLINE Quick adapter plate, engineered specifically for process automation installations. This pre-assembled configuration incorporates six active valve stations equipped with 2 x 3/2-way normally closed solenoid valves (circuit function C) alongside two blanking plates on positions 7 and 8. Process communication is executed over Industrial Ethernet protocols (PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic) via dual RJ45 ports integrated into the ME43 fieldbus gateway module.

Operating across a pneumatic pressure span from -1.00 bar to 10.00 bar with an internal auxiliary pilot air supply (3.00 to 10.00 bar), the unit provides visual status reporting directly on an integrated backlit LC display. Diagnostics are shown as explicit text strings and standardized symbols, enabling direct fault localisation during commissioning and routine plant operations.

Configuration of Article 20031699

Article 20031699 represents an engineered variant from the Burkert Type 8652 family with the following build specifications:

Specification Parameter	Value
Article Number	20031699
Product Type	8652 AirLINE
Base Variant	Standard, 8-bank AirLINE Quick AL
Total Valve Slots	8 PCE
Valve Slot Position 1	2x 3/2-way CF-C (normally closed)
Valve Slot Position 2	2x 3/2-way CF-C (normally closed)
Valve Slot Position 3	2x 3/2-way CF-C (normally closed)
Valve Slot Position 4	2x 3/2-way CF-C (normally closed)
Valve Slot Position 5	2x 3/2-way CF-C (normally closed)
Valve Slot Position 6	2x 3/2-way CF-C (normally closed)
Valve Slot Position 7	Blind plate
Valve Slot Position 8	Blind plate
Supply Port Dimension & Material	D10 push-in, Brass
Working Port Dimension & Material	D6 push-in, Brass
Adapter Plate Material	Anodised aluminium
Additional Air Supply Connections	Left: Push-in D6 and D10; Right: Push-in D6 and D10
Intermediate Feed Quantity	0 PCE (without intermediate module)
Auxiliary Pilot Air	Internal supply (3 to 10 bar)
Digital Input Count	0 (Electronic modules with DI not fitted)
Exhaust Check Valves	Not fitted in port 3 (R) or 5 (S)
Pneumatic HotSwap	Not fitted in port 1 (P)
Degree of Protection	IP20 (bare); IP65 in closed cabinet with AirLINE Quick

Technical Specifications

Characteristic	Technical Specification
Valve Body Material	Polyamide (PA)
Seal Materials	NBR and PUR
Station Width	11 mm per valve slice
Maximum Width	Dependent on slot count (see dimensions section)
Operating Medium	Lubricated or oil-free dry compressed air, neutral gases
Air Quality Standard	ISO 8573-1:2010, Class 7.4.4 (5 µm pre-filtering recommended)
Nominal Air Flow Rate ($Q_{\text{Nn}}$)	310 l/min (measured at +20 °C, 6 bar inlet, 1 bar pressure drop)
Pressure Range	Vacuum to 10 bar (-1.00 bar to 10.00 bar)
Auxiliary Pilot Pressure	3.00 bar to 10.00 bar
Nominal Operating Voltage	24 V DC (±10% tolerance, max. residual ripple 1 $V_{\text{ss}}$)
Valve Power Consumption	0.7 W nominal (drops to 0.175 W after internal power reduction)
Valve Nominal Current	29 mA (drops to 10 mA after power reduction)
Electrical Protection Class	Class III per DIN EN 61140, VDE 0140
Operating Mode	Continuous operation (100% duty cycle)
Switching Times	Tested in accordance with ISO 12238 (15 ms to 25 ms)
Ambient Temperature	-10 °C to +55 °C
Storage Temperature	-20 °C to +60 °C

AirLINE Quick Adapter Interface

Article 20031699 includes the AirLINE Quick adapter plate constructed from anodised aluminium with nickel-plated brass push-in fittings. This mounting mechanism attaches the valve island directly to cutouts on the control cabinet floor or wall.

Control Cabinet Layout Benefits

Mounting via the AirLINE Quick plate eliminates bulkhead pass-through fittings and interior pneumatic hose routings. Pneumatic lines connect directly on the exterior underside of the cabinet, reducing space requirements inside the enclosure and allowing smaller cabinet volumes.

Mechanical Property	Value
Adapter Plate Material	Anodised aluminium (optional 1.4301 stainless steel)
Pneumatic Fitting Material	Nickel-plated brass (optional 1.4401 stainless steel)
Supply & Exhaust Ports	Push-in D10 mm (3/8")
Working Ports	Push-in D6 mm (1/4")
Enclosure Ingress Protection	IP65 achieved across cabinet interface

Valve Functions and Pilot Solenoids

Type 8652 uses Type 6534 pilot solenoid valves (utilizing Type 6164 pilot elements) mounted on 11 mm slices. In article 20031699, positions 1 through 6 feature double 3/2-way valves in normally closed configuration (Circuit Function C), providing two independent single-acting actuator controls per physical slot.

Circuit Function	Symbol	Working Description	Flow Rate ($Q_{\text{Nn}}$)	Opening / Closing Time
CF C (2x 3/2-way)	2x 3/2-way NC	Two 3/2-way pilot valves, servo-assisted, normally closed, manual override	270 l/min	15 ms / 15 ms
CF D (2x 3/2-way)	2x 3/2-way NO	Two 3/2-way pilot valves, servo-assisted, normally open, manual override	310 l/min	15 ms / 15 ms
CF H (5/2-way)	5/2-way single coil	Single solenoid 5/2-way valve, servo-assisted, manual override	290 l/min	20 ms / 25 ms
CF Z (5/2-way impulse)	5/2-way bistable	Impulse valve with 2 coils, servo-assisted, manual override	290 l/min	20 ms / 25 ms
CF L (5/3-way locked)	5/3-way mid-closed	Center position all ports locked, servo-assisted	275 l/min	15 ms / 15 ms
CF M (5/3-way pressurized)	5/3-way mid-pressurized	Center position ports 2 and 4 pressurized, servo-assisted	300 l/min	20 ms / 20 ms
CF N (5/3-way exhausted)	5/3-way mid-exhausted	Center position ports 2 and 4 exhausted, servo-assisted	300 l/min	20 ms / 20 ms

Replacement Valve Ordering Numbers

Valve Description	Circuit Function	Voltage	Article No. (Spare Part Set)
Solenoid valve Type 6534	2x 3/2-way NC (CF C)	24 V DC	301374 (REF 296031)
Solenoid valve Type 6534	2x 3/2-way NO (CF D)	24 V DC	301375 (REF 296032)
Solenoid valve Type 6534	5/2-way (CF H)	24 V DC	301376 (REF 296033)
Solenoid valve Type 6534	5/2-way impulse (CF Z)	24 V DC	301377 (REF 296034)
Solenoid valve Type 6534	5/3-way locked (CF L)	24 V DC	301380 (REF 296036)
Solenoid valve Type 6534	5/3-way pressurized (CF M)	24 V DC	301379 (REF 296035)
Solenoid valve Type 6534	5/3-way exhausted (CF N)	24 V DC	301381 (REF 296039)
Single 3/2-way NC	1x 3/2-way NC (CF C)	24 V DC	20102334 (REF 20088974)
Dummy blanking plate	—	—	335779 (REF 327614)

Electrical and Fieldbus Connections

Electrical supply for logic and communication is segregated from the pneumatic valve actuator supply to permit safety trip functionality.

Power Supply Segregation

Maintain separate 24 V DC feeds for electronic logic and pneumatic valve coils. The interface plate provides independent spring-loaded terminal strips for communication power and valve auxiliary supply.

5-Pin Communication and Display Power Terminal

Accommodates conductor cross-sections up to 1.5 mm²:

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

2-Pin Pneumatic Valve Supply Terminal

Terminal Clip	Conductor Colour	Signal Assignment
1	Red	AUX +24 V DC
2	Black	0 V DC (GND)

Industrial Ethernet Dual RJ45 Interface (X1 and X2)

The integrated fieldbus module supports daisy-chain topologies through dual MDI/MDI-X RJ45 female ports:

Contact Pin	Signal Assignment	Protocol Support
Pin 1	TX+	PROFINET IO
Pin 2	TX-	EtherNet/IP
Pin 3	RX+	Modbus TCP
Pin 4	Not connected	EtherCAT
Pin 5	Not connected	CC-Link IE Field Basic
Pin 6	RX-	PROFINET S2 redundancy
Pin 7	Not connected	—
Pin 8	Not connected	—

Installation and Cabinet Dimensions

Installation inside an enclosure requires adherence to minimum front clearance distances to allow valve replacement or servicing.

Mechanical Dimensions for 4-, 8-, and 12-Slot Variants

Valve Island Variant	Dimension A (mm)	Dimension B (mm)	Fastening Screws C	Parameter m	Parameter n
4-fold	66	—	4x M5	3	1
8-fold (Article 20031699)	35	111	8x M5	7	2
12-fold	77	154	10x M5	11	3

Standard DIN rail mounting is compliant with EN 50022 profiles (35 x 7.5 mm or 35 x 15 mm). When installed on the control cabinet floor via the AirLINE Quick plate, the unit uses M5 DIN 6912 socket head screws.

Product Architecture and Network Integration

The modular structure consists of an ME43 fieldbus gateway, an LC display module, pneumatic base modules with 11 mm valve slices, and supply/exhaust connection blocks. Communication between modules runs over the internal büS backbone.

In hierarchical systems, Type 8652 equipped with Industrial Ethernet acts as the fieldbus master node. Decentralized AirLINE 8652 islands fitted with büS interfaces can be networked as field slaves beneath the master node without supplementary network switches.

Safety-Related Shut-Off Options (SIA)

Type 8652 supports safety-oriented shutdown functions through hardware-isolated circuits:

• Type 6534 SIA Valves: Valves feature dedicated external 2-pin screw terminals (0.14 to 1.5 mm²). Opening an external potential-free contact disconnects coil power individually, bypassing bus communication commands. Manual override is omitted on SIA valves.
• Module-Based SIA Emergency Stop: Optional 12-pin spring-loaded terminal strip (0.14 to 1.5 mm², wire gauge AWG 26-16) enables collective interruption of valve groups. Required contact switching capacity is 1.5 A at 24 V DC.

Hazardous Area Approvals

When deployed under specific Bürkert order codes (PU17 or PX68), Type 8652 holds certifications for Zone 2 and Zone 22 hazardous environments:

Certification Body	Identification Code	Standard Compliance
ATEX	II 3G Ex ec IIC Gc II 3D Ex tc IIIC Dc	BVS 20 ATEX E 031 U
IECEx	Ex ec IIC Gc Ex tc IIIC Dc	IECEx BVS 20.0024 U
cURus HazLoc (USA / Canada)	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, Div 2, Groups A, B, C, D Class II/III, Div 2, Groups F, G	UL 61010-1 CAN/CSA-C22.2 No. 61010-1
CCC (China)	Ex ec IIC Gc / Ex tc IIIC Dc	GB/T 3836 series (SITIIAS)

Explosive Atmosphere Safety Precautions

Do not connect or disconnect electrical terminals when energized in explosive atmospheres. Pneumatic hot swapping of valves is strictly prohibited in hazardous environments unless the atmosphere has been verified to be non-explosive by authorized personnel. Enclosures housing the valve island must provide minimum IP54 ingress protection for Category 3G (gas) and minimum IP6X for Category 3D (dust).

Accessories and Software Ordering

Accessory Description	Specification Detail	Article Number
5-Pin Spring Terminal Strip	Communication and display power supply	920180
2-Pin Spring Terminal Strip	Pneumatic valve actuator power supply	920442
Fieldbus Gateway Type ME43	Industrial Ethernet (PROFINET, EtherNet/IP, Modbus TCP, EtherCAT)	301799
Fieldbus Gateway Type ME43	PROFIBUS DP interface	301803
Fieldbus Gateway Type ME43	CANopen / büS interface	301802
Fieldbus Gateway Type ME43	PROFINET S2 system redundancy interface	20081296
USB büS Interface Set 1	Type 8923 with stick, M12/micro-USB cables, terminating resistor, software	772426
Bürkert Communicator Software	Configuration and diagnostic tool	Type 8920
Fastening Screw Set	M5 x 10 A2 DIN 6912 for AirLINE Quick cabinet floor mounting (10 pcs)	308661
8-Fold AirLINE Quick Height Adapter	For mounting level adaptation	754960
8-Fold Retaining Plate	External cabinet mounting plate	60005566
8-Fold AirLINE Quick Blank Plate	Cutout cover plate without intermediate feed	754965