Burkert Type 8644 - Manual (Page 50)

50
Structureandfunctionofthemodules
7.5. Valves
7.5.1. general description
Automation systems are being used increasingly in all areas in which open and closed loop tasks are to be managed.
The valves form the interface between electronics and pneumatics.
The valves consist of a pilot control solenoid valve and a pneumatic valve. Pilot valve and valve housing are clamped
or bolted to each other. The active principle allows high pressures to be switched at low power consumption and
short switching times.
The valves operate maintenance-free.
Ex license II 3 G Ex nA II T4 for Types 6524 / 6525 and Types 6526 / 6527

Type 6524
(2 x 3/2-way) Type 6524 Type 6525
Figure 26: Example of a valve: Types: 6524 (2 x 3/2-way), 6524 and 6525
Variants
In the case of Air LINE Type 8644 valves can be integrated with the following operating principles:
Valves Operating principle Operation Width type
3/2-way C (NC) Internal control air 10 6524
D (NO)
C (NC) Control assist air
(External)
D (NO)
C - vacuum (NC)
2 x 3/2-way 2 x C (NC) Internal control air
2 x C (NC) Control assist air
(External)
english
Type 8644