Type 8650

11 | 16

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8.3. Ordering chart replacement valves

Pilot valves Type 6524 and Type 6525 Ex i (11 mm width per station)

Note:

• ATEX and IECEx certified

• Other valve functions on request

• Further information about technical data can be found in chapter “1.4. 11 mm width per station: pilot valves Type 6524 and Type 6525

Ex i” on page 5.

• Further information about the circuit functions can be found in chapter “2. Circuit functions” on page 6.

Circuit function

Switching times

Pressure range Manual override

Article no.

Opening

Closing

[ms]

[ms]

[bar]

Valve for 8650

REV1 1.)

Valve for 8650

REV2 1.)

C (CF C)

3/2-way solenoid valve

Servo-controlled, with manual override

Normally closed

2(A)

1(P)

3(R)

12

15

20

2.5…7

Yes

20028756 

(184766 ) 2.)

20028760 

(365620 ) 2.)

2.5…7

No

o. r.

o. r.

1…7

Yes

20028758  3.)

(186835 ) 2.)

20028762 

(366796 ) 2.)

C (CF C)

2 x 3/2-way solenoid valve

Servo-controlled, with manual override

Normally closed

4

1

5

14

2

1

3

12

15

20

2.5…7

Yes

182086 

1…7

Yes

182088  3.)

Circuit function D (CF D)

3/2-way solenoid valve

Servo-controlled, with manual override

Normally open

2(B)

1(P)

3(R)

10

15

20

2.5…7

Yes

184767 

365624 

2.5…7

No

184768 

20021915 

H (CF H)

5/2-way solenoid valve

Servo-controlled, with manual override

Pressure applied via port (1), therefore

one of the two ports (2) or (4) is under

pressure.

14

12

4

2

5 1 3

15

20

2.5…7

Yes

20028757 

(184769 ) 2.)

20028761 

(365625 ) 2.)

2.5…7

No

o. r.

o. r.

1…7

Yes

20028759  3.)

(186834 ) 2.)

20028763 

(366797 ) 2.)

o. r. = on request

1.) If you have any questions about the compatibility of the valve revision, please contact your Bürkert sales office.

2.) The Article no. can no longer be ordered. Order the superordinate set instead.

3.) Version with auxiliary pilot air