BURKERT 20014860 is an AirLINE Type 8652 pneumatic valve island engineered for process automation environments, preconfigured with 16 valve slots and an AirLINE Quick adapter plate constructed from stainless steel 1.4301. The unit integrates 12 active pneumatic valve stations comprising one SIA safety shut-off valve (2x 3/2-way CF-C) and eleven standard 2x 3/2-way CF-C valves, supplemented by four blind plates for future expansion. All pneumatic connections are executed in stainless steel 1.4401, featuring D10 push-in fittings for supply air and D6 push-in fittings for working ports.

Communication and diagnostics are handled through an integrated Type ME43 Industrial Ethernet gateway supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic over dual RJ45 ports. Diagnostic status is visualized on an integrated LC display with clear text messages and status symbols. The electrical configuration features four 8DI electronic modules delivering 32 digital inputs for direct feedback from limit switches and position sensors without additional distributed I/O hardware.

Configuration and Valve Slot Layout

Article number 20014860 has a factory-defined mechanical and pneumatic structure. The 16 valve slots are occupied by Type 6534 solenoid valve modules and blanking plates as defined below:

Valve Position	Component Designation	Circuit Function	Description
Position 1	Type 6534 SIA	2x 3/2-way CF-C SIA	Safety shut-off valve, normally closed, external potential-free shut-off terminal
Position 2	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 3	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 4	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 5	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 6	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 7	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 8	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 9	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 10	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 11	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 12	Type 6534 Standard	2x 3/2-way CF-C	Standard double 3/2-way solenoid valve, normally closed
Position 13	Blanking Plate	—	Blind plate for unused slot
Position 14	Blanking Plate	—	Blind plate for unused slot
Position 15	Blanking Plate	—	Blind plate for unused slot
Position 16	Blanking Plate	—	Blind plate for unused slot

Configuration Scope

Air supply to the pilot valves is configured internally. Auxiliary pilot air is routed from the main supply duct, maintaining an operational pressure between 3 bar and 10 bar without requiring a separate pilot air line. Intermediate pneumatic supply modules are not installed on this 16-slot block.

Technical Specifications

Specification Parameter	Value
Body Material	Polyamide (PA)
Seal Materials	NBR and PUR
Station Width	11 mm per valve position
Operating Voltage	24 V DC (±10%)
Residual Ripple	1 Vss
Nominal Power per Valve	0.7 W (0.175 W after power reduction)
Nominal Current per Valve	29 mA (10 mA after power reduction)
Duty Cycle	Continuous operation (100% ED)
Operating Medium	Oil-free or lubricated dry compressed air, neutral gases (5 μm filter recommended)
Compressed Air Quality	ISO 8573-1:2010, Class 7.4.4
Nominal Pressure Range	Vacuum to 10 bar (-1.00 bar to 10.00 bar)
Pilot Pressure Range	3 bar to 10 bar
Nominal Flow Rate QNn (Air)	310 l/min (measured at +20 °C, 6 bar inlet pressure, 1 bar differential pressure)
Hot Swap Flow Rate Impact	Flow reduced by approx. 3%
Switching Time	Measured in accordance with ISO 12238
Protection Class (DIN EN 61140)	Class III
Ingress Protection	IP20 exposed; IP65 / NEMA 4X inside closed cabinet with AirLINE Quick stainless steel base
Storage Temperature	-20 °C to +60 °C
Ambient & Medium Temperature	-10 °C to +55 °C

AirLINE Quick Stainless Steel Adapter Plate

AirLINE Quick allows direct flush mounting of the valve terminal onto the control cabinet floor or wall cutout. Tubing connections for both supply and working lines are routed directly through the mounting plate to the exterior of the enclosure, eliminating internal cabinet piping, bulkhead unions, and excess wiring.

Component	Material / Specification
AirLINE Quick Adapter Plate	Stainless steel 1.4301 (304)
Supply / Exhaust Ports	Push-in connector D10 mm, stainless steel 1.4401 (316)
Pneumatic Working Ports	Push-in connector D6 mm, stainless steel 1.4401 (316)
Mounting Fasteners	Screw set M5 × 10 A2 DIN 6912
Enclosure Rating Achievement	IP65 / NEMA 4X (closed cabinet installation)

Dimensions and Control Cabinet Installation

The 16-slot valve block without intermediate supply exhibits a length of A = 99 mm and B = 198 mm, fixed by 10 x M5 mounting screws.

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

Hot Swap Maintenance Spacing

To enable the Hot Swap function, observe minimum clearance distances between the valve terminal and the control cabinet door or wall. Valves can be replaced under pressure without interrupting the operation of adjacent valve slices.

Electrical and Fieldbus Interface Connections

The terminal interface separates the electronics/communication power supply from the pneumatic valve coil power supply. This ensures that an emergency shutdown of the pneumatic actuators does not drop network communication or sensor feedback.

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

Pin / Terminal	Wire Colour	Assignment	Notes
1	Red	+24 V DC	Main electronics power supply
2	White	CAN_H	büS communication line
3	Green	SHIELDING	Cable shield connection
4	Blue	CAN_L	büS communication line
5	Black	GND (0 V DC)	Power and bus reference ground

Pneumatic Valve Power Supply (2-Pin Spring Terminal)

Terminal	Wire Colour	Assignment	Notes
1	Red	AUX +24 V DC	Solenoid valve coil supply
2	Black	GND (0 V DC)	Solenoid valve coil ground

Industrial Ethernet Interface (X1 and X2 RJ45)

Dual RJ45 Ethernet ports allow linear line and ring topologies across PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic:

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

Digital Input Modules (32 DI)

BURKERT 20014860 includes four 8DI electronic modules, providing 32 digital input channels. Each module provides 24 V DC sensor power with a maximum current limit of 30 mA per digital input.

Parameter	Technical Value
Compatible Sensors	2-wire sensors (10–30 V), 3-wire sensors, mechanical limit switches
Switching Thresholds	$V_{\text{OFF}} = 0\dots5\text{ V}$, $V_{\text{ON}} = 10\dots30\text{ V}$
Input Current at $V_{\text{ON}}$	Max. 5.7 mA per channel (typical at 24 V DC)
Input Impedance	> 4 kΩ
Galvanic Isolation	None (common reference potential across all channels)
Diagnostics Capability	Open-circuit detection with 2-wire sensors, short-circuit detection with 3-wire sensors
Maximum Cable Length	< 30 m
Wire Cross-Section	Pluggable spring terminals, $0.14\dots1.5\text{ mm}^2$ (AWG 28–16)

Sensor Type Used	Sensor Actuated	Sensor Not Actuated	Short Circuit	Wire Break
3-Wire Sensor	Yes	Yes	Detected	—
2-Wire Sensor	Yes	Yes	—	Detected
Mechanical Limit Switch	Yes	Yes	—	—

Circuit Functions and SIA Safety Shut-Off

Position 1 is fitted with a Type 6534 SIA valve, allowing a safety circuit to interrupt the power supply of that specific valve station independently of the fieldbus controller.

Feature	SIA Technical Detail
Electrical Connection	Pluggable, coded 2-pin screw-type terminal, wire cross-section $0.14\dots1.5\text{ mm}^2$
Switching Capacity	0.5 A at 24 V DC
Override Handling	SIA valves omit manual override levers to prevent inadvertent bypass
Commissioning Delivery State	Terminals supplied with a bridging jumper; jumper must be removed before field wiring
Switching State (Unpowered)	Normally closed (CF-C)

Safety Interlock Wiring

Connect the SIA connection terminals strictly to potential-free dry contacts such as emergency stop relays or mechanical safety switches. Do not apply external auxiliary voltages to the SIA contacts.

System Architecture and Software Integration

The valve terminal acts as a fieldbus gateway head in modular process architectures. It links the master controller over Industrial Ethernet and branches via büS (CANopen-based Bürkert system bus) to subordinate pneumatic islands, valve positioners, or field transmitters.

Parameter configuration, firmware updates, cyclic process data mapping, and diagnostic recording are managed using the Bürkert Communicator software (Type 8920) via a PC-connected USB-büS interface set (article no. 772426).

Hazardous Location and Explosion Protection Requirements

When installed within an appropriate secondary enclosure, Type 8652 valve islands comply with international explosion protection standards:

Standard / Certification	Ex Marking / Protection Level
ATEX (Directive 2014/34/EU)	II 3G Ex ec IIC Gc / II 3D Ex tc IIIC Dc (Certificate BVS 20 ATEX E 031 U)
IECEx Scheme	Ex ec IIC Gc / Ex tc IIIC Dc (Certificate IECEx BVS 20.0024 U)
North America (cURus HazLoc)	Class I, Zone 2, AEx ec IIC Gc / Class II, Zone 22, AEx tc IIIC Dc; Class I Div 2 Groups A,B,C,D; Class II, III Div 2 Groups F,G
China Compulsory Certification (CCC)	GB/T 3836 series compliance for Zone 2/22 explosive atmospheres

Hazardous Atmosphere Restrictions

In explosive gas or dust atmospheres, the following conditions must be strictly observed:

• Install the unit in a certified enclosure providing at least IP54 protection for gas (Zone 2) or IP6X for dust (Zone 22).
• The Hot Swap function must not be used while an explosive atmosphere is present unless the area has been certified non-hazardous by gas detection instrumentation.
• Connect or disconnect electrical spring terminals and Ethernet plugs only when the circuit is completely de-energized.
• Ensure transient surge protection prevents voltage spikes from exceeding 140% of the nominal peak supply voltage.

Spare Parts and Ordering References

Article No.	Component Description
20014860	Complete Type 8652 AirLINE 16-slot valve island (VA AirLINE Quick, 32 DI, Industrial Ethernet)
301374	Replacement valve Type 6534, 2x 3/2-way CF-C normally closed (24 V DC, 270 l/min)
338802	Replacement valve Type 6534 SIA, 2x 3/2-way CF-C with safety shut-off port (24 V DC)
335779	Type 6534 blanking dummy plate for vacant valve slots
384872	8DI digital input electronic module with diagnostic wire-break/short-circuit detection
301799	Fieldbus gateway Type ME43 Industrial Ethernet (PROFINET, EtherNet/IP, Modbus TCP, EtherCAT)
920180	5-pin spring-loaded terminal plug for communication and display power supply
920442	2-pin spring-loaded terminal plug for pneumatic valve coil power supply
308661	Mounting screw set M5 × 10 A2 DIN 6912 (10 pieces per set)
772426	USB büS interface set 1 (Type 8923) for Bürkert Communicator connection