Bürkert Type 8653 AirLINE Field valve island (SKU 377659) is developed for applications in process automation. Diagnostic functions are visualized at the LC display in clear text and symbols, facilitating the assignment of displayed messages and reducing start-up and maintenance time. The hardware design allows installation close to the actuator, and the IP65/67 protection class eliminates the need for further protective housing such as a control cabinet.

Key pneumatic functions ensure process reliability. Non-return valves integrated into the exhaust air ducts prevent unplanned actuation caused by pressure peaks.

General Technical Data

Property	Specification
Body Material	PPA
Seal Material	NBR and PUR
Maximum Installation Width	48.6 mm
Width per Station	11 mm
Number of Valve Slots	Max. 4
Pressure Range	Vacuum to 8 bar
External Supply Air	3 to 8 bar
Flow Rate ($Q_{Nn}$ value air)	310 l/min (measured at +20 °C, 6 bar pressure at valve inlet and 1 bar differential pressure)
Operating Voltage	24 V DC (±10% tolerance)
Nominal Power per Valve	0.7 W (0.1 W after power reduction)
Nominal Current per Valve	29 mA (10 mA after power reduction)
Current Consumption	< 400 mA (with fieldbus connection)
Operating Medium	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)
Ambient Temperature	-10 °C to +55 °C

Circuit Function

Model 377659 is configured with Circuit Function D (CF D).

Symbol	Description
CF D	2 × 3/2-way solenoid valve. Servo-controlled, with manual override. Normally open.

Product Connections

The device utilizes an M12 5-pin, A-coded circular plug for the büS/CANopen variant.

Pin	Assignment
1	SHIELDING
2	Supply voltage 24 V
3	GND
4	CAN_H (büS connection)
5	CAN_L (büS connection)

Assembly and Safety

Electromagnetic Fields and Electrostatic Discharge

Electrostatic discharge at the device may cause malfunctioning. If the functional earth (FE) is not connected, the conditions of the EMC Law are not observed. Depending on the installation situation, use a short cable with a large cross-section to connect the device or standard rail to the functional earth.

Assembly on Standard Rail

1. Push back the lever for unlocking the device and pull the device upwards out of the bracket.
2. Using a slotted-head screwdriver, carefully turn the fastening screws on the bracket all the way anticlockwise.
3. Position the bracket on the standard rail by tilting it upward slightly and push it into position.
4. Turn the fastening screws on the bracket all the way clockwise to secure the clamping pieces.
5. Slide the guide bars on the field module from the top to the bottom into the guide slot of the bracket until the locking mechanism engages audibly.