BURKERT 20032525 (Type 8652 AirLINE) is an 8-bank pneumatic valve island engineered for process automation environments. Factory configured under build code 20032525, this unit features an 8-valve slot pneumatic manifold mounted directly to a stainless steel AirLINE Quick adapter plate. It is populated across positions 1 through 6 with dual 3/2-way normally closed solenoid pilot valves (circuit function C), while positions 7 and 8 are sealed with blind plates for future expansion. Field connectivity is provided via dual RJ45 Industrial Ethernet ports supporting multi-protocol industrial networks, complemented by 16 integrated digital inputs across two electronic input modules.

Equipped with an integrated liquid crystal display, Type 8652 visualizes diagnostic statuses and process alerts directly at the valve terminal in clear text and standardized icons. Diagnostic information is simultaneously transmitted to the higher-level PLC over the active fieldbus, accelerating commissioning and fault isolation. The system operates from -1.00 bar to 10.00 bar main air pressure with an internal pilot air feed operating between 3.00 bar and 10.00 bar, providing standard nominal flow rates of up to 310 l/min air per station.

Specific Configuration of Article 20032525

Article 20032525 defines a factory-assembled pneumatic and electronic configuration with specific pneumatic porting, valve slices, and protocol profiles.

Specification Parameter	Value for Article 20032525
Product Type	Type 8652 AirLINE
Identification Name	Valve island 8652 8-bank ALQ VA
Article Number (SKU)	20032525
Number of Valve Slots	8 PCE
Valve Slot 1	2x 3/2-way CF-C (Normally Closed)
Valve Slot 2	2x 3/2-way CF-C (Normally Closed)
Valve Slot 3	2x 3/2-way CF-C (Normally Closed)
Valve Slot 4	2x 3/2-way CF-C (Normally Closed)
Valve Slot 5	2x 3/2-way CF-C (Normally Closed)
Valve Slot 6	2x 3/2-way CF-C (Normally Closed)
Valve Slot 7	Blind plate
Valve Slot 8	Blind plate
Total Digital Inputs	16 (Module 1 with DI: Yes, Module 2 with DI: Yes)
AirLINE Quick Plate Material	Stainless steel 1.4301
Supply Connection (Port 1)	D 3/8" push-in, Stainless steel 1.4401
Working Ports (Ports 2 and 4)	D 1/4" push-in, Stainless steel 1.4401
Auxiliary Pilot Air Supply	Internal (3 to 10 bar)
Additional Air Supply Feeds	Without left, middle, or right auxiliary feed modules
Integrated Check Valves	Port 3 (R): No; Port 5 (S): No
Pneumatic HotSwap in Port 1 (P)	No
Communication Interface	Industrial Ethernet (PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, CC-Link IE Field Basic)
Communication Hardware Ports	2 x RJ45 ports (X1 and X2)
Degree of Protection	IP20 (bare unit), NEMA 4X / IP65 inside closed stainless steel cabinet
Safety Certification	cULus Listed (UL 61010-1, CAN/CSA-C22.2 No. 61010-1)

AirLINE Quick Adapter Interface

AirLINE Quick enables direct mounting of the valve terminal into the wall or floor of a control cabinet, eliminating individual internal bulkhead bulk and tubing runs.

Connecting pneumatic hoses directly on the exterior bottom surface reduces cabinet volume requirements and shortens assembly time. For article 20032525, the adapter plate is fabricated from stainless steel 1.4301 with push-in fluid fittings machined from stainless steel 1.4401.

Technical Feature	AirLINE Quick Specification
Adapter Plate Material	Stainless steel 1.4301 (or anodised aluminium in alternate builds)
Push-in Pneumatic Fitting Material	Stainless steel 1.4401 (or nickel-plated brass)
Supported Station Capacities	8, 16, 24, 32, 40, and 48 valve functions
Supply and Exhaust Port Dimensions	Push-in D 10 mm, 3/8" (D 3/8" on 20032525)
Working Port Dimensions	Push-in D 6 mm, 1/4" (D 1/4" on 20032525)
Mounting Orientations	Control cabinet floor or control cabinet wall

General Technical Specifications

Type 8652 conforms to standard pneumatic and electrical specifications under DIN EN and ISO industrial standards.

Attribute Category	Technical Specification
Housing Material	Polyamide (PA)
Seal Materials	NBR and PUR
Station Width	11 mm per valve slice
Maximum Number of Slots	Up to 24 slots (48 controllable valve functions)
Manual Override Types	Latching and spring-return (lockable options available)
Operating Pressure Range	Vacuum to 10 bar (-1.00 bar to 10.00 bar)
External Pilot Air Range	3 to 10 bar (when using external pilot feed)
Nominal Air Flow Rate QNn	310 l/min (at +20 °C, 6 bar inlet, 1 bar delta P; reduced ~3% if HotSwap fitted)
Operating Duty Cycle	Continuous operation (100% ED)
Operating Voltage	24 V DC (±10% tolerance)
Residual Ripple	1 Vss
Power Consumption per Valve	0.7 W nominal (drops to 0.175 W after internal power reduction)
Current Draw per Valve	29 mA nominal (drops to 10 mA after power reduction)
Electrical Protection Class	Class III in accordance with DIN EN 61140, VDE 0140
Operating Fluid	Oil-free or lubricated dry compressed air, neutral gases
Compressed Air Quality	ISO 8573-1:2010, Class 7.4.4 (5 µm pre-filter recommended)
Storage Temperature	-20 °C to +60 °C
Operating Ambient Temperature	-10 °C to +55 °C

Filtration Recommendation

To maintain pilot spool response times and extend the operating life of the 11 mm valves, ensure dry compressed air satisfies ISO 8573-1:2010 Class 7.4.4 with a pre-filtration rating of 5 µm or finer.

Circuit Functions and Pilot Valves

Article 20032525 contains six active stations using circuit function C (CF C), which pairs two independent 3/2-way servo-assisted normally closed solenoid valves on each 11 mm station body. Unused stations 7 and 8 are covered by dummy plates.

Function Code	Valve Description	Standard Flow Path
CF C (2x 3/2-way)	Two 3/2-way solenoid valves, servo-controlled, normally closed when de-energized	Pressure at (1) blocked; working ports (2) and (4) vented to exhaust (3)/(5)
CF C (Single 3/2-way)	3/2-way solenoid valve, servo-controlled, normally closed	De-energized closed position with manual override
CF D (2x 3/2-way)	Two 3/2-way solenoid valves, servo-controlled, normally open when de-energized	Pressure at (1) continuously routed to working ports when de-energized
CF H (5/2-way)	5/2-way solenoid valve, servo-controlled	Single solenoid impulse: pressure on (1) charges either port (2) or (4)
CF Z (5/2-way)	5/2-way bi-stable solenoid valve with 2 coils	Double-solenoid bistable latching operation
CF L (5/3-way)	5/3-way solenoid valve, middle position closed	All ports blocked in central position
CF M (5/3-way)	5/3-way solenoid valve, middle position pressurized	Ports (2) and (4) connected to supply in central position
CF N (5/3-way)	5/3-way solenoid valve, middle position exhausted	Ports (2) and (4) connected to exhaust in central position
Blind Plate	Non-pneumatic blanking plate	Hermetically seals base pneumatic manifold slot

Approvals, Conformity, and Hazardous Area Specifications

Article 20032525 carries standard cULus listing under UL 61010-1 and CAN/CSA-C22.2 No. 61010-1 for general electrical measurement and control equipment. Installed inside an appropriate control cabinet with its stainless steel AirLINE Quick plate, it satisfies NEMA Type 4X.

Optional Type 8652 hardware executions comply with explosive atmosphere directives (PU17 and PX68 suffix options):

• ATEX Certificate: BVS 20 ATEX E 031 U, marking II 3G Ex ec IIC Gc and II 3D Ex tc IIIC Dc
• IECEx Certificate: IECEx BVS 20.0024 U, marking Ex ec IIC Gc and Ex tc IIIC Dc
• North American Hazardous Locations (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
• China Compulsory Certification (CCC): Ex compliance under GB/T 3836 series standards audited by SITIIAS

Hazardous Location Disconnection Rules

When deploying explosive-atmosphere-rated configurations of Type 8652, do not connect or disconnect electrical spring-loaded terminals (24 V power, SIA, EVS, digital inputs) while energized. Hot swapping of valves is strictly prohibited unless the atmosphere is proven to be non-hazardous.

Dimensions and Installation Guidelines

Article 20032525 belongs to the 8-valve-slot mechanical footprint. Mounting can be executed directly onto the cabinet wall/floor through the AirLINE Quick interface or onto DIN rails compliant with EN 50022 (35 x 7.5 mm or 35 x 15 mm).

Footprint Variant	Dimension A (mm)	Dimension B (mm)	Mounting Holes C	Grid Factor m	Fasteners n
4-fold (4 slots)	66	—	4 x M5	3	1
8-fold (8 slots)	35	111	8 x M5	7	2
12-fold (12 slots)	77	154	10 x M5	11	3

For 16-slot, 20-slot, and 24-slot variants, an intermediate supply block is available, requiring different hole layouts:

• 16-fold with intermediate feed: A=112 mm, B=224 mm, C=10 x M5, D=114.3 mm
• 20-fold with intermediate feed: A=134 mm, B=268 mm, C=10 x M5, D=158.3 mm
• 24-fold with intermediate feed: A=156 mm, B=312 mm, C=10 x M5, D=158.3 mm

When positioning Type 8652 inside an enclosure, maintain clearance to the cabinet front door and back panel to allow valve slice insertion and screw access.

Electrical and Fieldbus Connections

The internal assembly separates electronic communication bus power from pneumatic valve coil excitation, allowing independent safety shutdown of valve actuation circuits.

5-Pin Spring-Loaded Terminal: Communication and Displays

Accepts conductor cross-sections up to 1.5 mm².

Pin Position	Terminal Wire Colour	Assigned Signal
1	Red	+24 V DC (Logic 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-Loaded Terminal: Pneumatic Valve Power

Independent electrical feed for solenoid coils. Accepts conductor cross-sections up to 1.5 mm².

Terminal Position	Terminal Wire Colour	Assigned Function
1	Red	AUX +24 V DC (Valve power supply)
2	Black	0 V DC (GND)

Industrial Ethernet Interface: Dual RJ45 (Ports X1 and X2)

Article 20032525 features dual RJ45 Ethernet connectors (X1 and X2) supporting linear and ring network topologies.

Contact Pin	Industrial Ethernet Signal (X1 / X2)
1	TX+ (Transmit Data +)
2	TX- (Transmit Data -)
3	RX+ (Receive Data +)
4	Not connected (N.C.)
5	Not connected (N.C.)
6	RX- (Receive Data -)
7	Not connected (N.C.)
8	Not connected (N.C.)

Fieldbus Redundancy and Multi-protocol Operation

The integrated Ethernet controller supports PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic. PROFINET S2 system redundancy is also supported when higher network availability is required.

Digital Input Electronic Modules

Article 20032525 includes two 8DI electronic modules, providing 16 digital input channels for sensor feedback such as valve limit switches.

Inputs are energized at 24 V DC with current limiting set to a maximum of 30 mA per input. Conductor cross-section accommodates rigid or flexible leads from 0.14 mm² to 1.5 mm² with cable runs up to 30 meters.

Parameter	8DI Module Specification
Diagnostic Functions	Wire-break detection on 2-wire sensors; short-circuit detection on 3-wire sensors
Sensor Compatibility	2-wire sensors (10–30 V), 3-wire sensors, mechanical dry-contact switches
Switching Thresholds	V_OFF = 0 to 5 V; V_ON = 10 to 30 V
Channel Input Current at V_ON	Max. 5.7 mA per channel (typical at 24 V DC)
Input Impedance	> 4 kΩ
Galvanic Isolation	No (channels share common reference potential)
Maximum Cable Length	< 30 m

Diagnostic Capability	3-Wire Sensors	2-Wire Sensors	Mechanical Limit Switches
Sensor Actuated State	Yes	Yes	Yes
Sensor Unactuated State	Yes	Yes	Yes
Short Circuit Detection	Yes	No	No
Wire Break Detection	No	Yes	No

Network Topology and EDIP Integration

Type 8652 functions as an Industrial Ethernet master valve terminal capable of linking subordinate büS slave islands via its CAN-based local communication link.

System configuration, parameter mapping, diagnostic interrogation, and firmware management are managed using the Bürkert Communicator software (Type 8920) within the EDIP (Efficient Device Integration Platform) framework. Physical connection to a configuration PC requires a USB-CAN adapter kit.

SIA Safety Shut-off Options

For safety-related circuit interruption, Burkert provides SIA variants of Type 6534 pilot valves and module-based emergency shutdown links. SIA valves use external potential-free contacts (relays or mechanical switches) rated for 0.5 A at 24 V DC on coded 2-pin screw terminals. Modular shutdown units handle up to 1.5 A at 24 V DC over 12-pin spring-loaded headers.

Component and Replacement Ordering Reference

Type 8652 components and maintenance items utilize exact Burkert order codes.

Replacement Pilot Valves (Type 6534 for Type 8652)

Valve Function	Width	Nominal QNn	Pressure Range	Response Time	Order Code (with Screws)
CF C (2x 3/2-way NC)	11 mm	270 l/min	Vac. to 10 bar	15 ms open / 15 ms close	301374 (REF_296031)
CF D (2x 3/2-way NO)	11 mm	310 l/min	Vac. to 10 bar	15 ms open / 15 ms close	301375 (REF_296032)
CF H (5/2-way mono)	11 mm	290 l/min	Vac. to 10 bar	20 ms open / 25 ms close	301376 (REF_296033)
CF Z (5/2-way bistable)	11 mm	290 l/min	Vac. to 10 bar	20 ms open / 25 ms close	301377 (REF_296034)
CF L (5/3-way mid closed)	11 mm	275 l/min	Vac. to 10 bar	15 ms open / 15 ms close	301380 (REF_296036)
Blind Plate (Dummy Valve)	11 mm	—	—	—	335779 (REF_327614)

Connection and Electronic Modules

Component Description	Order Code
Electronic Display Module with DI Contacts (8DI)	384872
Electronic Display Module without DI Contacts	384873
Left Pneumatic Supply Module with Pressure Sensor (D 1/4" and D 3/8")	384868
Left Pneumatic Supply Module without Pressure Sensor (D 1/4" and D 3/8")	384864
5-Pin Spring-Loaded Terminal Block (Logic & Display Power)	920180
2-Pin Spring-Loaded Terminal Block (Pneumatic Valve AUX 24 V)	920442
Fieldbus Gateway Type ME43 (Industrial Ethernet)	301799
USB büS Interface Set 1 (Type 8923 with stick, cables, power supply)	772426
AirLINE Quick M5 x 10 A2 DIN 6912 Cabinet Fastening Screws (Set of 10)	308661
AirLINE Quick Height Adapter for 8-valve plate	754960
AirLINE Quick Retaining Plate for 8-valve plate	60005566
AirLINE Quick Blind Plate for 8-valve plate	754965