BURKERT 20065847 Type 8640 is a modular valve island 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.

Key Features

• Compact design: Space-saving modular configuration.
• AirLINE Quick: Higher flexibility in the control cabinet and reduced installation effort due to hose connections directly at the bottom of the control cabinet.
• Simple exchange of valves: With the option “P-shut-off”, valves can be exchanged even during operation.

General Technical Data

Product properties	Type 0460, Type 6524, Type 6525	Type 6526, Type 6527	Type 5470
Body Material	PA (polyamide), aluminium (Type 0460)	PA (polyamide), aluminium	PA (polyamide)
Seal Material	FKM, NBR and PUR	NBR	NBR
Width per station	11 mm	16.5 mm	19 mm
Manual override	Standard	Standard	Standard
Number of valve slots	Max. 24 (Max. 12 for impulse/double valves)	Max. 24	Max. 24
Pressure range	Vac...10 bar	Vac...10 bar	Vac. 2...10 bar
Operating voltage	24 V DC (±10%)	24 V DC (±10%)	24 V DC (±10%)
Operating medium	Oil-free or lubricated compressed dry air, neutral gases	Oil-free or lubricated compressed dry air, neutral gases	Oil-free or lubricated compressed dry air, neutral gases
Degree of protection	IP20 (IP65 in closed control cabinets)	IP20 (IP65 in closed control cabinets)	IP20 (IP65 in closed control cabinets)

Compatible Pilot Valves

The Type 8640 valve island can be combined with various pilot valves depending on the application requirements:

• Type 6524 and Type 6525: 3/2-way, 2x 3/2-way, or 5/2-way solenoid valves consisting of a pilot flipper solenoid valve Type 6144 and a pneumatic seat valve. They allow switching of high pressures with low power consumption.
• Type 0460: 5/2-way and 5/3-way bistable solenoid valves consisting of a pneumatic valve body fitted with a double coil pilot valve.
• Type 6526 and Type 6527: 3/2-way and 5/2-way solenoid valves fitted with a Type 6106 rocker solenoid valve.
• Type 5470: 3/2-way and 4/2-way solenoid valves fitted with a Type 6106 rocker pilot valve. The minimal tilting movement of the rocker is non-wearing, and basic lubrication is unnecessary.

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.

Note

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

Product Design and Assembly

Electronics

No.	Element
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 (11 mm width per station)

No.	Element
1	Pneumatic connection module, left
2	Basic pneumatic modules
3	Pneumatic connection module, right
4	Valves (for example 5/2-way)

Installation

Safety Instructions

• Risk of injury due to high pressure: 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.
• Risk of injury from unconnected hoses: Before applying pressure to the valve, check all hose connections and fittings for tight, secure fit.

Valve Block Installation

Item	Designation
1	Electrical connection can be rotated by 180°
2	Wall mount
3	Standard rail 35 x 15 or 35 x 7.5 EN 50022
4	Connection module

Standard rail installation:

1. Hook the valve block with the upper groove into the standard rail.
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.