Variants – Burkert Type 8644 User Manual
Page 58
54 - 8644/Rockwell
S
YSTEM
D
ESCRIPTION
More detailed technical data should be taken from the data sheets for the valves.
NOTE
Storage temperature -20 °C to +60 °C
Variants
With AirLINE Type 8644, valves with the following circuit functions may be integrated:
Valves with auxiliary control air
When valves with auxiliary control air are used, the exhaust air from the pilot valve escapes to
ambient.
Valves with auxiliary control air cannot be combined on the valve island with valves with
internal control air, since the connection X (see
System descriptions, Connector modules,
pneumatic) has a different configuration.
Valves 6524 and 6525
[Exception: type 6524 (2x 3/2-way)]
The composition of the valve island Type 8644 with valves 6524 and 6525 is approved
for use in Zone 2 to II 3 G EEx nA II T4 with the number PTB 02 ATEX 2048.
Valves
Circuit function
Actuation
Width
Type
3/2-way
C (NC)
internal control air
10
6524
D (NO)
C (NC)
auxiliary control air
D (NO)
C-vaccum (NC)
2 x 2/3-way
2 x C (NC)
internal control air
2 x C (NC)
auxiliary control air
3/2-way
C (NC)
internal control air
16
6526
D (NO)
C (NC)
auxiliary control air
D (NO)
C-vaccum (NC)
5/2-way
H
internal control air
10
6525
auxiliary control air
internal control air
16
6527
auxiliary control air
5/3-way
L blocking middle position
internal control air
10
0460
N exhausted
L blocking middle position
16
0461
N exhausted
5/2-way pulsed
H
internal control air
10
0460
16
0461