The Burkert Type 8640 valve unit system is designed to solve diverse and complex control problems due to its systematic modular construction and combination of pneumatic and electrical interfaces. By putting together a row of pneumatic modules with different numbers of valves, 2 to 24 valve functionalities may be realized on one valve unit. Electrical connectivity is achieved by either fieldbus interfaces, common connection (parallel connection technique) or multipin interfaces. The valves allow different applications to be covered. Bodies and connection modules are made of high-quality plastic (polyamide) and are easy to assemble by means of the built-in snap connectors.

General Technical Data

Feature	Specification
Body Material	PA (polyamide), aluminium (Type 0460)
Seal Material	FKM, NBR and PUR
Number of valve slots	Max. 24 (Max. 12 for impulse and double valves with multipol/fieldbus)
Pressure range	Vac...10 bar (depending on valve type)
Operating voltage	24 V DC (±10% tolerance)
Operating medium	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)
Degree of protection	IP20 / IP65 in closed control cabinets
Ambient temperature	0 °C...+ 55 °C (when using Type 0460/0461: 0 °C...+ 50 °C)

Solenoid Valve Variants

The Type 8640 modular valve island can be equipped with various pilot valves to suit different application requirements.

Type 6524 and Type 6525

• The pilot valves Type 6524 (single and double valve) and Type 6525 (single valve) consist of a pilot flipper solenoid valve Type 6144 and a pneumatic seat valve.
• The circuit function allows switching of high pressures with low power consumption and short switching times.
• Width per station: 11 mm.

Type 0460

• The solenoid valve Type 0460 consists of a pneumatic valve body fitted with a double coil pilot valve.
• The principle allows switching of high pressures together with low power consumption and fast switching times.
• Width per station: 11 mm.

Type 6526 and Type 6527

• The solenoid valve Type 6526 and Type 6527 consist of a pneumatic valve body fitted with a Type 6106 rocker solenoid valve.
• Width per station: 16.5 mm.

Type 5470

• The solenoid valve Type 5470 consists of a pneumatic valve body fitted with a Type 6106 rocker pilot valve. An armature with a tilting bearing, similar to a rocker, tilts within the body of the pilot valve, and switches the valve.
• Width per station: 18 mm.

AirLINE Quick

AirLINE Quick considerably reduces the use of components in the control cabinet. With the AirLINE Quick Adapter, the valve terminal is adapted directly to the control cabinet floor or control cabinet wall.

Advantages:

• Reduced space requirement in the control cabinet.
• Makes it possible to use more compact control cabinets.
• Reduced installation effort due to hose connections directly at the bottom of the control cabinet.

Note

The valves of Type 0460 cannot be installed with AirLINE Quick due to their size.

Product Connections

Fieldbus Modules

Available for PROFIBUS DP, PROFINET IO, EtherNet/IP, and Modbus TCP.

• Max. 24 valves.
• Max. 32 digital inputs (in connection with EME module).
• Degree of protection IP20.

Product Design and Assembly

Electronics Assembly

1. Electrical end module, left
2. Terminal module for feedback
3. Extension module for electrical inputs
4. Multi-pin digital inputs (initiators)
5. Electrical end module, left
6. Basic electrical module standard
7. Fieldbus module
8. Multipin valve outputs
9. Common connection module

Pneumatics Assembly (11 mm width per station)

1. Pneumatic connection module, left
2. Basic pneumatic modules
3. Pneumatic connection module, right
4. Valves (for example 5/2-way)

Installation Safety Instructions

DANGER

Risk of injury due to high pressure and escaping medium. Switch off the pressure before working on the device or system. Vent or drain the pipes.

Risk of injury due to electric shock. Switch off voltage before working on the device or system. Secure against reactivation.

WARNING

Risk of injury from quickly accelerating device parts and unconnected compressed air hoses flapping around. Before applying pressure to the valve, check all hose connections and fittings for tight, secure fit.

Valve Block Installation

Standard rail installation:

1. Hook the valve block with the upper groove into the standard rail (EN 50022 35 x 7.5 or 35 x 15).
2. Snap the lower clamping pieces into the standard rail.
3. Tighten the screws on the clamping pieces.

Wall installation: Fasten the valve block directly to the wall with M4 screws.