The following chart shows the maximum outlet steam
pressure that can be obtained from the main valve. The
outlet steam pressure is based on the air pressure from
the pneumatic temperature pilot to an AP-1A or AP-4A
Pneumatic Pressure Pilot. Intermediate pressures can be
interpolated from the chart.
PNT Air Signal
Maximum Steam Pressure from Main Valve
Outlet Pressure
AP-1A Pressure Pilot
AP-4A Pressure Pilot
psig
Bar
psig
Bar
psig
Bar
9
(0.62)
0
(0.00)
0
(0.00)
10
(0.69)
1
(0.07)
4
(0.28)
11
(0.76)
2
(0.14)
8
(0.55)
12
(0.83)
3
(0.21)
12
(0.82)
13
(0.90)
4
(0.28)
16
(1.10)
14
(0.97)
5
(0.35)
20
(1.38)
15
(1.04)
6
(0.41)
14
(1.66)
18
(1.24)
9
(0.62)
36
(2.50)
20
(1.38)
11
(1.76)
44
(3.00)
25
(1.73)
16
(1.10)
64
(4.40)
30
(2.07)
21
(1.45)
84
(5.80)
9
