BURKERT 20076176 (Type 8652 AirLINE) is a modular 16-slot pneumatic valve island configured with 16 dual 3/2-way normally closed valves (Circuit function C), integrated PROFIBUS DPV1 fieldbus communication via a 9-pin Sub-D connector, and an aluminium AirLINE Quick adapter plate for direct control cabinet floor mounting. Engineered specifically for process automation environments, each 11 mm wide valve slice operates with a low nominal power consumption of 0.7 W (reducing to 0.175 W after switching) and delivers a nominal flow rate of 310 l/min. The island features internal auxiliary pilot air routing, an integrated intermediate pneumatic feed module, integrated non-return check valves in exhaust ducts 3 (R) and 5 (S), and pneumatic HotSwap in supply port 1 (P).

Technical Specifications

Specification Group	Parameter	Value
Base Identity	Burkert Type	8652
Base Identity	Article Number (SKU)	20076176
Valve Configuration	Number of Valve Slots	16 PCE (11 mm station width)
Valve Configuration	Positions 1 through 16	2x 3/2-way CF-C (normally closed)
Pneumatics	Pressure Range	Vacuum to 10 bar (-1.00 bar to 10.00 bar)
Pneumatics	Pilot Pressure Range	3 bar to 10 bar (internal auxiliary pilot air)
Pneumatics	Nominal Flow Rate QNn (Air)	310 l/min (approx. 3% reduction during HotSwap)
Pneumatics	Exhaust Check Valves	Integrated in port 3 (R) and port 5 (S)
Pneumatics	HotSwap Capability	Integrated in supply port 1 (P)
Pneumatic Ports	Supply Port (1)	Push-in connector D10 mm (nickel-plated brass)
Pneumatic Ports	Working Ports (2 and 4)	Push-in connector D6 mm (nickel-plated brass)
Pneumatic Ports	Additional Supply Feed	Middle push-in D6/D10 (1 PCE); Left push-in D6/D10; Right without
Mechanical	AirLINE Quick Adapter Plate	Anodised aluminium
Mechanical	Body / Housing Material	Polyamide (PA)
Mechanical	Seal Materials	NBR and PUR
Electrical	Operating Voltage	24 V DC (±10%), residual ripple 1 Vss
Electrical	Nominal Power per Valve	0.7 W (0.175 W after holding power reduction)
Electrical	Nominal Current per Valve	29 mA (10 mA after power reduction)
Electrical	Duty Cycle	Continuous operation (100% ED)
Electrical	Protection Class	Class III according to DIN EN 61140 / VDE 0140
Communication	Modular Gateway	Type ME43 Fieldbus Gateway
Communication	Protocol	PROFIBUS DPV1
Communication	Hardware Interface	Sub-D 9-pin female connector
Environmental	Degree of Protection	IP20 naked / IP65 in closed control cabinet with AirLINE Quick
Environmental	Ambient Temperature Range	-10 °C to +55 °C
Environmental	Medium Temperature Range	-10 °C to +55 °C
Environmental	Storage Temperature Range	-20 °C to +60 °C
Environmental	Operating Medium	Compressed dry air (lubricated or unlubricated), neutral gases (ISO 8573-1:2010 Class 7.4.4)

AirLINE Quick Adapter Plate and Cabinet Mounting

The AirLINE Quick system allows Type 8652 to be mounted directly on the floor or side wall of a control cabinet. All pneumatic working lines (D6 mm) and supply lines (D10 mm) route directly out of the cabinet base through the aluminium adapter plate, eliminating separate bulkhead pass-through fittings and significantly reducing cabinet volume requirements.

Dimensional Data for 16-Fold Variants

For article 20076176, the valve terminal utilizes the 16-fold configuration with an intermediate supply block. The dimensional parameters defined by Burkert engineering drawings are:

Variant	A (mm)	B (mm)	C (screws)	D (mm)	m	m'	n
16-fold with intermediate supply (Article 20076176)	112	224	10 x M5	114.3	7	7	4
20-fold with intermediate supply	134	268	10 x M5	158.3	11	7	5
24-fold with intermediate supply	156	312	10 x M5	158.3	11	11	6
16-fold without intermediate supply	99	198	10 x M5	—	15	—	4
20-fold without intermediate supply	121	242	10 x M5	—	19	—	5
24-fold without intermediate supply	143	286	10 x M5	—	23	—	6

Cabinet Installation Clearance for HotSwap

When positioning the valve island inside the enclosure, ensure sufficient clearance between the front edge of the valve island and the cabinet door/front framework to enable unhindered removal and insertion of valve slices during live pneumatic HotSwap.

Electrical and Fieldbus Connections

The 24 V interface plate separates valve coil actuation power from the logic and communication module power, ensuring that a safety cutoff or disruption on the actuator supply does not interrupt communication with the supervisory PLC.

Power Supply Terminals

Terminal Block	Terminal Pin	Conductor Colour Code	Signal Assignment
Communication & Logic (5-pin spring-loaded)	Pin 1	Red	24 V DC (Logic)
Communication & Logic (5-pin spring-loaded)	Pin 2	White	CAN_H (büS interface)
Communication & Logic (5-pin spring-loaded)	Pin 3	Green	Shielding
Communication & Logic (5-pin spring-loaded)	Pin 4	Blue	CAN_L (büS interface)
Communication & Logic (5-pin spring-loaded)	Pin 5	Black	0 V DC (GND)
Pneumatic Valves (2-pin spring-loaded)	Pin 1	Red	AUX 24 V DC (Valve coil supply)
Pneumatic Valves (2-pin spring-loaded)	Pin 2	Black	0 V DC (Valve GND)

Terminal Requirements

Both spring-loaded blocks accommodate conductor cross-sections up to 1.5 mm².

PROFIBUS DPV1 Fieldbus Interface (Sub-D 9-pin)

Pin	Signal	Description
1	Shielding	Cable shield connection
2	M24	Optional ground reference
3	RxD/TxD-P	Receive / Transmit data positive (B-line)
4	CNTR-P	Control signal P (optional)
5	DGND	Data ground
6	+5 V	Terminating resistor supply voltage
7	+24 V	Optional 24 V auxiliary voltage
8	RxD/TxD-N	Receive / Transmit data negative (A-line)
9	CNTR-N	Control signal N (optional)

Valve Slices and Circuit Functions

Article 20076176 is fully populated with 16 dual 3/2-way normally closed valve slices (Circuit Function C). Each slot contains two pilot-controlled solenoid valves utilizing Type 6164 pilot operators. Manual overrides are incorporated on each valve position.

Replacement Solenoid Valves for Type 8652

Circuit Function	Description	Nominal Diameter (mm)	QNn Air (l/min)	Pressure Range (bar)	Opening Time (ms)	Closing Time (ms)	Operating Voltage	Spare Valve Article No. (incl. screws)
CF C	2x 3/2-way NC, servo-assisted, with manual override	4	270	Vac...10 (pilot 3...10)	15	15	24 V DC	301374 (REF 296031)
CF C	1x 3/2-way NC, servo-assisted, with manual override	4	270	Vac...10 (pilot 3...10)	15	15	24 V DC	20102334 (REF 20088974)
CF D	2x 3/2-way NO, servo-assisted, with manual override	4	310	Vac...10 (pilot 3...10)	15	15	24 V DC	301375 (REF 296032)
CF H	5/2-way, servo-assisted, with manual override	4	290	Vac...10 (pilot 3...10)	20	25	24 V DC	301376 (REF 296033)
CF Z	5/2-way impulse, 2 coils, with manual override	4	290	Vac...10 (pilot 3...10)	20	25	24 V DC	301377 (REF 296034)
CF L	5/3-way, middle position closed, with manual override	4	275	Vac...10 (pilot 3...10)	15	15	24 V DC	301380 (REF 296036)
CF M	5/3-way, middle position pressurized, with manual override	4	300	Vac...10 (pilot 3...10)	20	20	24 V DC	301379 (REF 296035)
CF N	5/3-way, middle position exhausted, with manual override	4	300	Vac...10 (pilot 3...10)	20	20	24 V DC	301381 (REF 296039)
Dummy	Blanking slice for unused valve slot	—	—	—	—	—	—	335779 (REF 327614)

Process Reliability and Safety Features

Exhaust Check Valves in 3 (R) and 5 (S)

Integrated non-return check valves located directly in the common exhaust ducts prevent cross-exhaust backpressure spikes from entering de-energized actuators. This prevents inadvertent process actuator movements when neighbouring high-volume valves vent simultaneously.

Pneumatic HotSwap in Port 1 (P)

The integrated pneumatic HotSwap shut-off valve enables online replacement of individual valve slices while the manifold remains pressurized up to 10 bar. Nominal airflow rate QNn decreases by approximately 3% due to the internal check mechanism.

Hazardous Area Operational Restrictions

According to ATEX/IECEx supplementary directives (BVS 20 ATEX E 031 U / IECEx BVS 20.0024 U):

• Do not disconnect or connect electrical spring-loaded terminals when energized in potentially explosive atmospheres.
• Pneumatic HotSwap replacement of valve slices must not be executed while an explosive atmosphere is present, unless confirmed safe by atmospheric testing equipment.
• When installed in hazardous Zone 2 or Zone 22 environments, the terminal must be housed in an enclosure providing at least IP54 (Zone 2) or IP6X (Zone 22) protection.

Compatible Accessories and Spare Parts

Category	Description	Article Number
Replacement Valve	Dual 3/2-way NC (CF C) replacement valve with screws	301374
Gateway Spare	Fieldbus gateway Type ME43 (PROFIBUS DP)	301803
Connector Plugs	5-pin spring-loaded terminal for communication and logic power	920180
Connector Plugs	2-pin spring-loaded terminal for pneumatic valve power supply	920442
AirLINE Quick Hardware	M5x10 A2 DIN 6912 cabinet fastening screw set (pack of 10)	308661
AirLINE Quick Hardware	Height adapter for 16-fold base with intermediate feed	754962
AirLINE Quick Hardware	Retaining plate for control cabinet exterior (16-fold with intermediate feed)	60005568
AirLINE Quick Hardware	Blind cover plate for 16-fold base with intermediate feed	754967
Software Tool	Bürkert Communicator Type 8920 commissioning software	Type 8920
Hardware Kit	USB büS interface set 1 (Type 8923) with terminating resistor and power supply	772426