North American 5642 Full Emulsion Atomizers Instructions, Multiple Burners
Sheet 5642-1
P1
AIR
G
P4
P2
P5
A
P8
P7
H
B
E
D
#6 OIL
P10
BURNER
P3
P6
P9
5642 ATOMIZER
STEAM
C
F
TO OTHER BURNERS
Schematic shown is of the steam and oil piping control system most frequently used on steel reheat furnaces.
All burners common to one control system must be mounted at the same elevation for equal distribution of the fuel.
The oil and steam control regulators must be at the same level for good control.
A = Differential pressure oil regulator B = Adjustable port oil control valve C = Differential pressure steam regulator D = Oil shutoff valve E = Sensitrol™ oil valve F = Steam shutoff valve (normally full open) G = Control motor
H = Sensitrol or adjustable port oil valve (manual operation) P = Pressure gauge and shutoff valve (not required at each point)
TYPICAL OPERATING PRESSURES based on 10 psi steam with no oil loading
P1
P2 * psi 100 100 100 100
P3 psi 100 100 100 100
P4 *
P5
P6 P7
P8 psi
P9 psi
P10 psi
osi
psi psi psi psi
0.2
80 80
6
16
5.5
5.5
16 23
5
1
13
23 11.5
11.5
11
4 8
80 42 80 70
52 39 39 52 80 65 65 80
31
50
* Dependent on the type of oil metering and control system.
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