Table of Contents
Advertisement
Design and principle of operation
Table 3-4: K
coefficients, x
VS
Type 2111 Valve · Unbalanced
Valve size
K
coefficient
VS
Max. perm. differential
pressure Δp
Reduced K
coefficient
VS
Max. permissible differential
pressure ∆p
Type 2422 Valve · Balanced by a bellows
Valve size
Valve travel
K
coefficient
VS
Max. permissible differential
pressure ∆p
Reduced K
coefficient
VS
Max. permissible differential
pressure ∆p
x
value
FZ
Type 2422 Valve · Balanced by a diaphragm
Valve size
Valve travel
K
coefficient
VS
Max. permissible differential
pressure ∆p
x
value
FZ
With EN-GJS-400-18-LT: Δpmax. = 14 bar
1)
In combination with Type 2212 STL: 4 bar
2)
3-8
values and max. permissible differential pressures ∆p
FZ
DN
15
4.0
25 bar
16 bar
1)
0.1 · 0.4 · 1.0 · 2.5
25 bar
DN
15
20
25
4.0
6.3
8.0
2.5 · 4.0 · 6.3
0.65
0.6
DN
65
50
0.4
20
25
6.3
8.0
14 bar
1)
0.1 · 0.4
1.0 · 4.0
1)
32
40
50
10 mm
16
20
32
25 bar
6.3
8.0
16
25 bar
0.55
0.45
80
16 mm
80
10 bar
32
40
16
20
6 bar
6 bar
2)
6.3
8.0
1)
16
14
65
80
100
16 mm
50
80
125
20 bar
16 bar
32
80
20 bar
0.4
0.35
0.35
EB 2111/2121/2123 EN
50
32
4 bar
16
6
125
150
22 mm
190
280
12 bar
125
16 bar
100
125
Advertisement
Table of Contents
