BURKERT 20016714 (Type 8652) is an AirLINE pneumatic valve island configured with 20 valve stations and an anodised aluminium AirLINE Quick adapter plate designed for direct mechanical mounting to control cabinet floors or walls. The assembly integrates an ME43 Industrial Ethernet communication module that natively supports PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic over dual RJ45 ports. Valve stations 1 through 14 contain 2x 3/2-way normally closed solenoid valves (Circuit Function C), stations 15 and 16 contain 5/2-way monostable solenoid valves (Circuit Function H), and stations 17 through 20 contain 2x 3/2-way normally closed valves equipped with SIA external shut-off contacts (Circuit Function C SIA) for safety-related hardware interlocking.

Pneumatic supply connection 1 (P) utilizes D10 mm push-in fittings in nickel-plated brass, while individual working ports 2 and 4 utilize D6 mm push-in brass fittings. Auxiliary pilot air is routed internally. The unit incorporates a dedicated pneumatic intermediate feed module positioned between station groups to balance air distribution across the 20-fold bank. An additional left-hand supply block provides secondary push-in connections for D6 and D10 mm tubing. The operating pressure spans from -1.00 bar vacuum up to 10.00 bar, with an auxiliary pilot pressure requirement of 3.00 to 10.00 bar and an ambient operating range of -10 °C to +55 °C.

Valve Station Layout and Circuit Functions

The 20 valve positions of article 20016714 are populated with Type 6534 high-response 11 mm solenoid valve slices. Each station operates on 24 V DC with an initial inrush power of 0.7 W that reduces automatically to 0.175 W in continuous operation (100% duty cycle) to limit cabinet heat generation.

Station Number	Valve Configuration	Circuit Function	Manual Override	Safety Shut-Off (SIA)
Slot 1 to 14	2x 3/2-way solenoid valve, normally closed	CF-C (WWC)	Latching / spring return	No
Slot 15 to 16	5/2-way monostable solenoid valve	CF-H (WWH)	Latching / spring return	No
Slot 17 to 20	2x 3/2-way solenoid valve, normally closed	CF-C SIA (WWC)	None (safety version)	Yes (dual external shut-off pins)

Power Supply Isolation

Pneumatic valve coils (AUX 24 V) and communication/display electronics are powered through separate terminal blocks. This ensures diagnostic data and bus communication continue operating even if the valve power bus is disconnected by external safety relays.

AirLINE Quick Adapter Plate

The AirLINE Quick system allows the valve terminal to mount directly flush onto the bottom cut-out of a control cabinet, routing pneumatic lines directly out of the enclosure. This design eliminates individual bulkhead bulkhead fittings and internal tubing bundles.

Component	Material Specification
AirLINE Quick Adapter Plate	Anodised aluminium (1.4301 stainless steel optional on request)
Pneumatic Supply / Exhaust Ports	Brass, nickel-plated (push-in D10 mm, 3/8")
Pneumatic Working Ports	Brass, nickel-plated (push-in D6 mm, 1/4")
Valve Body Material	Polyamide (PA)
Seal Materials	NBR and PUR
Ingress Protection	IP20 stand-alone; IP65 when sealed into closed control cabinet
Control Cabinet Type Rating	Type 4X according to NEMA 250 (when using stainless steel plate variant)

Dimensions for 20-Fold Valve Islands

Article 20016714 uses the 20-fold baseplate configuration equipped with an intermediate supply block. Mounting utilizes M5 fasteners positioned along the baseplate perimeter.

Configuration Variant	A (mm)	B (mm)	C (Screws)	D (mm)	m	m'	n
20-fold with intermediate supply (20016714)	134	268	10 x M5	158.3	11	7	5
16-fold with intermediate supply	112	224	10 x M5	114.3	7	7	4
24-fold with intermediate supply	156	312	10 x M5	158.3	11	11	6
20-fold without intermediate supply	121	242	10 x M5	—	19	—	5

Cabinet Clearance for Maintenance

Ensure adequate clearance between the control cabinet front door and the front edge of the valve slices. Adequate depth is necessary to allow hot-swap extraction of valve slices without bending adjacent wiring or dismantling air tubing.

Electrical and Fieldbus Interfaces

Communication is managed via an integrated ME43 gateway supporting 100 Mbit/s Industrial Ethernet protocols with internal 2-port switching for line and ring topologies.

Industrial Ethernet RJ45 Pin Assignment (Ports X1 and X2)

Pin Number	Signal Name	Description
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

Power Supply Terminal Assignments

Terminal Block	Pin / Clip	Wire Colour	Signal Assignment	Conductor Cross-Section
5-pin spring-loaded terminal	1	Red	24 V DC (Logic and displays)	≤ 1.5 mm²
	2	White	CAN_H (büS interface)	≤ 1.5 mm²
	3	Green	Shield	≤ 1.5 mm²
	4	Blue	CAN_L (büS interface)	≤ 1.5 mm²
	5	Black	0 V DC (GND)	≤ 1.5 mm²
2-pin spring-loaded terminal	1	Red	AUX 24 V DC (Pneumatic valve coils)	≤ 1.5 mm²
	2	Black	0 V DC (GND)	≤ 1.5 mm²

Safety-Related Shut-Off (SIA Variant)

Valve positions 17 through 20 feature Type 6534 SIA modules designed for safety shutdown. The coil circuit of each individual valve station is broken out to a dedicated external 2-pin pluggable terminal, permitting local hardware interlocks via dry contacts or safety relays.

Electrical Parameter	Value
Terminal Type	Pluggable screw-type terminal, 2-pin, coded
Wire Cross-Section	0.14 mm² to 1.5 mm² (AWG 28 to 16), rigid or flexible
Contact Switching Capacity	0.5 A / 24 V DC
Default State upon Delivery	Fitted with electrical jumper bridges for immediate operation
Operational Requirement	Remove jumper bridge before connecting external dry contacts

Network Topology and System Integration

Article 20016714 can serve as an Industrial Ethernet master island, linking downstream büS slave valve blocks (such as secondary 8652 islands or Bürkert process valves) via its integrated service gateway.

Hazardous Area Restrictions

For installations in Zone 2 or Zone 22 hazardous areas, never connect or disconnect terminals while energized. Hot-swapping of pneumatic valves is prohibited in explosive atmospheres unless the zone is verified and certified to be free of flammable gas or dust.

Replacement Valves and System Accessories

Type 6534 pilot valves and mounting hardware are available as specific spare parts for servicing Type 8652 islands.

Description	Circuit Function	Pressure Range	Flow Rate QNn	Article Number
Replacement Valve Type 6534	2x 3/2-way CF-C, 24 V DC	Vac. to 10 bar	270 l/min	301374
Replacement Valve Type 6534	5/2-way CF-H, 24 V DC	Vac. to 10 bar	290 l/min	301376
Replacement Valve Type 6534 SIA	2x 3/2-way CF-C SIA, 24 V DC	Vac. to 10 bar	270 l/min	338802
Replacement Valve Type 6534 SIA	5/2-way CF-H SIA, 24 V DC	Vac. to 10 bar	290 l/min	338805
Dummy Valve Slice	Blanking plate for unused slot	—	—	335779
5-Pin Spring Terminal Plug	Power supply logic and displays	—	—	920180
2-Pin Spring Terminal Plug	Power supply valve coils (AUX)	—	—	920442
ME43 Gateway Module	Industrial Ethernet communication	—	—	301799
AirLINE Quick 20-Fold Height Adapter	For 20-fold base with intermediate feed	—	—	754963
AirLINE Quick 20-Fold Retaining Plate	Exterior cabinet fixing plate	—	—	60005569