0330 Ex
p. 9/12
Other circuit functions
The valves are fitted with different springs for a specific circuit function. When used in other circuit functions the permissible operating pres-
sure changes acc. to the following table.
Metal body
Valve
operation
Max. operating pressure [bar] when using the valve in a new circuit function
Orifice 2 mm
Orifice 3 mm
Orifice 4 mm
A1)
B
1)
C
D
E
F
A
B
C
D
E
F
A
B
C
D
E
F
C
16
1.5
16
1.5
1.5
16
10
1
10
1
1
10
5
0.8
5
0.8
0.8
5
D
4
16
4.5
16
4
4
2.5
10
2.5
10
2
3
2
5
2
5
2
2
T
8
8
10
10
10
8
6
6
6
6
6
6
3
3
3
3
3
3
Plastic body
Valve
operation
Max. operating pressure [bar] when using the valve in a new circuit function
Orifice 2 mm
Orifice 3 mm
Orifice 4 mm
A
1)
B
1)
C
D
E
F
A
B
C
D
E
F
A
B
C
D
E
F
C
16
1.5
16
1.5
1.5
16
10
1
10
1
1
10
5
0.8
5
0.8
0.8
5
D
4
16
4.5
16
4
4
2.5
10
2.5
10
2
3
2
5
2
5
2
2
F
16
1.5
10
1.5
1.5
16
6
1
6
1
1
10
4
1
4
1
1
1)
For circuit function A and B the valve must be connected acc. to the pin assignment of 3/2 way valve.
Additional options
Option
Variable
Code
Description
Oxygen versions
NL02
Suitable for applications with oxygen
(non-metal materials that are in contact with the medium, are tested
and approved according to BAM)
Increased purity requirements e.g. oil, grease and
silicone-free
NL50/NL05 Wetted parts are specially cleaned and packaged in accordance with
the valves
Increased hermetic requirements
PCxx
Standard units are tested at 10
-2
mbar x l / sec; feasible up to 10
-6
mbar
Vacuum version
NA02
Suitable for vacuums up to -0.98 bar
Increased purity and hermetic requirements
NA03
Wetted parts are specially cleaned and leak tested to 10
-4
mbar x l/sec
Increased purity and hermetic requirements and
vacuum version
NA01
Wetted parts are specially cleaned and leak tested up to 10
-4
mbar x l/
sec and suited for vacuum up to -0.98 bar
Electrical feedback
CF15
Coil with intrinsically safe proximity switches (PTB 00 ATEX 2048X)
instead of manual override
