The BURKERT 20059449 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, multiple valve functionalities can be realized on one valve unit. This specific configuration features a 16.5 mm width per station, 12x 3/2-way valve function C, and a multi-pole electrical connection. Bodies and connection modules are made of high-quality plastic (polyamide) and are easy to assemble by means of built-in snap connectors.

General Technical Data

The following technical data applies to the 16.5 mm width per station configuration (utilizing Type 6526/6527 pilot valves) associated with this model.

Product Properties	Specification
Body Material	PA (polyamide), aluminium
Seal Material	NBR
Width per station	16.5 mm
Manual override	Standard
Pressure range	Vac...10 bar (Overpressure to atmospheric pressure)
External supply air	>2 bar
Flow rate $Q_{Nn}$ value air	700 l/min measured at +20 °C, 6 bar pressure at valve inlet and 1 bar differential pressure
Nominal operating mode	Continuous operation (100% duty cycle)
Operating voltage	24 V DC (±10% tolerance)
Nominal power of each valve	2 W, 1 W
Operating medium	Oil-free or lubricated compressed dry air, neutral gases (5 μm filter recommended)
Degree of protection	IP20 (IP65 in closed control cabinets)
Working port	D 8
Air supply connection 1 (P), 3 (R), 5 (S)	G 3/8
Ambient temperature	0 °C...+ 55 °C

Product Connections

This model utilizes a multi-pole communication interface for electrical connectivity.

Multi-pin module Valve outputs:

• Max. 24 valves
• Degree of protection IP20
• Electrical connection plug D-Sub (25-pin)

Dimensions

Pneumatics 16 mm width per station

(Dimensions in mm, unless otherwise stated)

Basic Safety Instructions

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.

Risk of injury from quickly accelerating device parts

Before applying pressure to the valve, check all hose connections and fittings for tight, secure fit. Unconnected compressed air hoses can flap around dangerously.

Electrostatically sensitive components

The device contains electronic components that are susceptible to the effects of electrostatic discharging (ESD). Meet the requirements specified by EN 61340-5-1 to minimise or avoid the possibility of damage caused by sudden electrostatic discharge. Do not touch electronic components when the supply voltage is connected.