Capacity Curves - Honeywell VQ400 Series Product Handbook

CAPACITY CURVES

Capacity curve combination gas valves
3/4" DN20
8
6
60
5
50
4 40
3 30
2 20
1 10
0.8 8
a a
0.6 6
0.5 5
0.4 4
0.3 3
0.2 2
3
Vn (m /h)
0.1 1
Air dv=1
Methane dv 0.64
Table 1. Capacity in m
1" DN25
11
1 2 3 4
2 3 4 5
Fig. 1. Capacity curves for VQ400 Series class "A" combination valves
a
3
/ air at p = 2,5 mbar
h
1 1/4" DN32
25
DN25
DN20
5 6 8 10 20
6 8 10 20
7
1 1/2" DN40
31
DN50
DN40
DN32
30 40 50 60 80 100
30 40 50 60 80 100
EN2R--9018 9704R1--NE
2" DN50
40
200 300
200 300