Consolidated 1900/P Series Safety Valves Instruction Manual
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XVI. Setting and Testing
(Contd.)
Table 11: Adjusting Ring Settings for Steam Service
1
Metal-to-Metal Seats for Steam Internals
Orifice
No. of Notches
Set ≤ 100 psig
(6.89 barg)
1
Set > 100 psig
(6.89 barg)
1
D
24
2 Notches
6 Notches
E
24
2 Notches
6 Notches
F
24
2 Notches
6 Notches
G
30
2 Notches
6 Notches
H
30
2 Notches
6 Notches
J
30
2 Notches
8 Notches
K
32
8 Notches
19 Notches
L
40
10 Notches
31 Notches
M
40
10 Notches
30 Notches
N
40
10 Notches
30 Notches
P
40
14 Notches
42 Notches
Q
48
17 Notches
47 Notches
R
48
42 Notches
64 Notches
T
24
30 Notches
38 Notches
Note 1: Position Below Disc Holder
G. Adjusting Ring Settings
