The BURKERT 20092069 Type 8640 modular valve island 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

Product properties	Type 0460, Type 6524, Type 6525	Type 6526, Type 6527	Type 5470
Material Body	PA (polyamide), aluminium (Type 0460)	PA (polyamide), aluminium	PA (polyamide)
Material Seal	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	24 (Max. 12 for impulse and double valves)	Max. 24	Max. 24
Maximum number of valve functions	Max. 48 (only for individual wiring and multiple connection)	Max. 24	Max. 24
Pressure range	Vac...10 bar	Vac...10 bar	Vac. 2...10 bar
Operating voltage	24 V DC	24 V DC	24 V DC
Voltage tolerance	±10%	±10%	±10%
Operating medium	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)
Degree of protection	IP20 / IP65 in closed control cabinets	IP20 / IP65 in closed control cabinets	IP20 / IP65 in closed control cabinets
Ambient temperature	0 °C...+ 55 °C (when using Type 0460: 0 °C...+ 50 °C)	0 °C...+ 55 °C (when using Type 0461: 0 °C...+ 50 °C)	-10 °C...+ 55 °C

Circuit Functions

Symbol	Description
	Circuit function C (CF C) 3/2-way solenoid valve Servo-controlled, with manual override Normally closed
	Circuit function C (CF C) 2 × 3/2-way solenoid valve Servo-controlled, with manual override Normally closed
	Circuit function D (CF D) 3/2-way solenoid valve Servo-controlled, with manual override Normally open
	Circuit function N (CF N) 5/3-way solenoid valve With manual override In middle position ports 2 and 4 exhausted

Product Connections

Collective Connection Modules and Multipole Modules

• Collective connection module: Connection via individual stranded wires. Looped-through ground potential. Max. 24 valves. Degree of protection IP20. Screw-type terminals.
• Multi-pin module Valve outputs: Max. 24 valves. Degree of protection IP20. Electrical connection plug D-Sub (2-pin).

Fieldbus Modules

• PROFIBUS DP: Max. 24 valves. Degree of protection IP20. Max. 32 digital inputs (in connection with EME module). Transmission rates 9.6 / 19.2 / 93.75 / 187.5 / 500 kBaud, 1.5 / 3 / 6 / 12 MBaud. Power supply with rectangular plug (4-pin). Bus connection D-Sub (9-pin). RIO connection M8 (4-pin).
• PROFINET IO, EtherNet/IP, Modbus TCP: Max. 24 valves. Degree of protection IP20. Max. 32 digital inputs. Transmission rates 10/100 MBits/s with Auto Crossover. Power supply with rectangular plug (4-pin). Bus connection RJ45 (2x). RIO connection M8 (4-pin).

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 16 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

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. ▶ Observe any applicable accident prevention and safety regulations for electrical devices.

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 (35 x 15 or 35 x 7.5 EN 50022).
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.

Pneumatic Installation

NOTE!

Note the assignment of the connections:

• 1: Pressure port
• 2 and 4: Working port
• 3: Exhaust port

1. Push the hose lines into the push-in connections of the solenoid valves until they come to a stop.
2. Use PTFE tape or elastomer seal for sealing the threaded connection.
3. Align hose lines.
4. Connect the supply and working lines to the valve block.

Requirements for hose lines:

• Minimum hardness 40 Shore D (according to DIN 53505 or ISO 868).
• Outer diameter according to DIN 73378 (maximum permissible deviation ± 0.1 mm from nominal dimension).
• Burr-free, cut off at right angles and undamaged on the outer diameter surface.

Electrical Installation of Cable Plugs

1. Screw on the cable plug (e.g. Type 2516 or other according to DIN ISO 175301-803 Form C), observing the maximum tightening torque of 0.3 Nm.
2. Check that the seal is correctly fitted.
3. Connect the protective conductor and check electrical continuity between coil and housing.

Maintenance and Troubleshooting

Fault	Possible cause	Remedy
Valves do not switch	No operating voltage or operating voltage too low	Check electrical connection. Ensure operating voltage according to type label.
	Manual override not in zero position	Bring manual override to zero position.
	Pressure supply insufficient or not available	Set up large-volume pressure supply. Minimum operating pressure ≥ 2 bar.
Valves switch with a delay or blow off at the exhaust ports	Pressure supply insufficient or not available	Set up large-volume pressure supply. Minimum operating pressure ≥ 2 bar.
	Valves are not in the home position (de-energised) during pressure build-up	Apply pressure to the valve block before the valves are switched.
	Insufficient ventilation of the exhaust air ducts due to too small or dirty silencers	Use suitably sized silencers or expansion vessels. Clean the dirty silencers.
	Impurities or foreign matter in the pilot or pneumatic valve	Apply pulsed pressure to the exhaust air ducts to blow out the impurities. Install a new pilot or pneumatic valve.
Leaky valve blocks	Missing or crushed O-rings between the modules	Identify leak or missing seals.
	Missing or incorrectly positioned flat seals between valve and base plate	Insert missing seals or replace damaged seals.