Type 8650

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1.3. Supply slice right/left/middle

• The connection discs (in the picture connection discs right/left) form the interfaces between the

electrical modules of the Siemens SIMATIC ET 200iSP™ series and the pneumatic Bürkert

valve block. The AirLINE Ex system is supplied with compressed air via the connection discs.

• Further information regarding dimensions can be found in chapter “5. Dimensions” on page 8

Product properties

Material

Body (pneumatic)

PA, PC, brass, stainless steel

Weight

With manometer: approx. 500 g

Electrical data

Power consumption

0 W (module is electrically passive)

Process/Port connection & communication

Pneumatic connection

G ⅜" (P + R/S) and G ⅛" (X)

Connection size for pressure switch

G ¼"

1.4. 11 mm width per station: pilot valves Type 6524 and Type 6525 Ex i

• The pneumatic valves of Type 6524  and Type 6525  consist of an Ex i pilot solenoid valve

and a pneumatic seat valve. The operating principle allows switching of high pressures with low

power consumption and short switching times. The pilot valves are equipped with a manual

override as standard (alternatively versions without manual override).

• Further information regarding ordering information can be found in chapter “8.3. Ordering

chart replacement valves” on page 11.

Product properties

Material

Body

PA (polyamide)

Seal

NBR

Manual actuation

Yes (alternative versions without)

Orifice

DN 4 mm

Performance data

Flow (Q

Nn value air)

300 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

Electrical data

Nominal power of each valve

0.3 W (2 × 0.3 W with 2 × 3/2-way valve)

Process/Port connection & communication

Port connection

Via valve block Bürkert Type 8650

Electrical connection (on valve)

Via valve block Bürkert Type 8650

Environment and installation

Mounting condition

For single valves: M2 x 20

For double valves: M2 x 28