General Information
Technical Data
Spray Patterns
Critical Points
text_44_angles_capacities.gif (3109 bytes)

Nozzle

Nozzle
Series
30 45 60 70 80 90
R

SOLID
.50
to
1.50
.40
to
3.50
.40
to
3.50
.50
to
3.50
.50
to
3.50
.50
to
3.50
NS

HOLLOW
.50
to
1.50
.50
to
2.00
.50
to
2.00
.50
to
2.00
.50
to
2.00
.50
to
2.00
AR
SPECIAL
SOLID
- .60
to
3.50
.60
to
3.50
.60
to
3.50
.60
to
3.50
.65
to
3.50
PLP
SEMI
HOLLOW
- 2.25
to
9.50
2.25
to
30.00
2.25
to
60.00
2.25
to
100.00
2.25
to
50.00
PL

HOLLOW
- 2.25
to
9.50
2.25
to
30.00
2.25
to
50.00
2.25
to
50.00
2.25
to
9.50
HV
SCOTCH
MARINE
1.65
to
24.00
10.50
to
60.00
       

 

POROUS BRONZE FILTERS
MONARCH developed the first porous metal Oil Burner Nozzle Filter to provide highly efficient filtration with a one piece construction. These Filters (40 to 60 microns) are supplied as standard up tthrough 1.00 USGPH on all series, unless Mesh Strainers (200 mesh/approx. 70 microns) are requested.

MESH STRAINERS
1.10 USGPH to 10.50 USGPH nozzles are fitted with 120 mesh (approx. 120 microns) Monel screen strainers. Mesh strainers may be used with higher GPH nozzles, up to a maximum of 30.00 USGPH, if ordered separately.

CAPACITY SIZES
Nozzles are available in sizes from .40 to 100.00 USGPH, at 100 PSI (6.895 bar) for No. 2 fuel oil. Field tests may vary from the nominal rating due to oil viscosity (the higher the viscosity, the greater the nozzle flow and vice versa). When using No. 2 fuel oil within normal operating temperature range, the flow changes approximately 1% for each SSU change in viscosity.

OPERATING PRESSURES AND VISCOSITIES
MONARCH nozzles are tested at nominal pressures of 7 to 10 bar, with test oil, similar to No. 2 fuel oil, 34 to 36 SSU viscosity at 100 F, gravity 32 to 38 A.P.I. at 60° F and test temperatures 75° to 80° F (3.36 to 3.44 mm2/s at 20C, and a density of 0.840). The recommended operating pressures for nozzles used with domestic fuel oil and kerosene are from e to 25 bar. (Please consult us for higher pressures).For higher viscosity fluids, possible operating pressures range from 10 to 14 bar. However, this will result in a considerable reduction of spray angles, unless specially designed nozzles are used (see HO nozzles).


The "HO" nozzle is to be used on higher viscosity oils at elevated operating pressures. The nozzle nominal flow rate is 100 PSIG (6.895 bar) for No. 2 fuel oil and are available in capacities sizes from 1.00 to 100.00 USGPH.

HO-200 PSI (14 bar)
When regular light oil nozzles are used on more viscous oil, their sprays tend to "flutter", and produce a narrower spray angle with streaks in the spray. Accordingly, the standard "HO". nozzles are specially tested for spray quality and rated for spray angle at a pressure of 200 PSIG (14 bar) on 70 SSU (13 Centistoke) operating viscosity oil. This special testing assures that the nozzles will perform properly under heavy oil operating conditions. The spray angle stamped on the nozzles is the nominal spray angle at 200 PSIG operating pressure.HO - 30 PSI (30 bar)For high pressure operation, HO nozzles which are tested for spray angle and spray quality at 430 PSIG (30 bar) on 70 SSU operating viscosity oil, are also available. The additional testing is necessary to ensure that no streaks, voids or flutter appear in the spray at these pressures. The spray angle stamped on the nozzle is the nominal Spray Angle at 430 PSIG operating pressure.Note: the nominal flow rates stamped on the nozzles are based on 100 PSIG using U.S. No.2 fuel oil, subject to a flow tolerance of plus or minus 5%. Flow rates shown at 300 PSIG on 70 SSU operating viscosity oil are from actual tests. Flow rates at higher and lower pressures are predicted from the 300 PSIG data. Actual flow rates may vary, depending on exact operating conditions.Nozzles for operation at 200 PSIG are available in 45°, 60° and 80° spray angles in sizes of 2.25 USGPH up to, and including 45.00 USGPH, sizes of 50.00 USGPH nozzles, and up, are available only in 60° and 80° spray angles. Nozzles for operation at 430 PSIG are available in 45°, 60° and 80° in sizes 1.00 USGPH up to and including 45.00 USGPH. Sizes of 50.00 USGPH and up are available only in 80°. Strainers are not included with nozzles but 120 mesh Monel Strainers may be ordered separately. Strainers are specifically not recommended for use on sizes over 50.00 USGPH, as restriction may occur.


Nozzle Capacities
U.S. Gallons per Hour No. 2 Fuel Oil

RATED
PGH @
100 PSI
OPERATING PRESSURE: POUNDS PER SQUARE INCH
75 100 125 150 175 200
.40
.50
.60
.65
.75
-
-
-
-
-
-
.40
.50
.60
.65
.75
.45
.56
.67
.73
.84
.49
.61
.74
.80
.92
.53
.66
.79
.86
.99
.56
.71
.85
.92
1.06
.85
1.00
1.10
1.20
1.25
-
.87
.95
1.04
1.07
.85
1.00
1.10
1.20
1.25
.95
1.12
1.23
1.34
1.39
1.04
1.23
1.34
1.47
1.53
1.13
1.32
1.45
1.59
1.65
1.20
1.41
1.55
1.70
1.77
1.35
1.50
1.65
1.75
2.00
1.17
1.30
1.43
1.51
1.73
1.35
1.50
1.65
1.75
2.00
1.51
1.68
1.84
1.96
2.24
1.65
1.84
2.02
2.14
2.45
1.79
1.98
2.18
2.32
2.65
1.91
2.12
2.34
2.48
2.83
2.25
2.50
3.00
3.50
4.00
1.95
2.16
2.59
3.03
3.46
2.25
2.50
3.00
3.50
4.00
2.52
2.80
3.35
3.91
4.47
2.74
3.06
3.68
4.29
4.90
2.98
3.30
3.97
4.63
5.30
3.18
3.54
4.25
4.95
5.66
4.50
5.00
5.50
6.00
6.50
3.90
4.33
4.76
5.19
5.63
4.50
5.00
5.50
6.00
6.50
5.04
5.59
6.15
6.71
7.26
5.51
6.13
6.74
7.33
7.96
5.95
6.61
7.27
7.94
8.60
6.36
7.07
7.78
8.48
9.20
7.00
7.50
8.00
8.50
9.00
6.05
6.49
6.93
7.36
7.79
7.00
7.50
8.00
8.50
9.00
7.82
8.38
8.94
9.50
10.06
8.58
9.19
9.80
10.45
11.02
9.25
9.91
10.58
11.27
11.91
9.90
10.60
11.31
12.08
12.73
9.50
10.50
12.00
13.50
15.50
8.22
9.10
10.40
11.65
13.37
9.50
10.50
12.00
13.50
15.50
10.60
11.70
13.40
15.07
17.33
11.70
12.90
14.70
16.53
18.95
12.60
13.90
15.90
17.90
20.56
13.50
14.90
17.00
19.17
21.89
17.50
19.50
21.50
24.00
28.00
15.10
16.90
18.60
20.80
24.20
17.50
19.50
21.50
24.00
28.00
19.60
21.80
24.00
26.80
31.30
21.40
23.90
26.40
29.40
34.30
23.20
25.80
28.40
31.80
37.00
24.80
27.60
30.40
34.00
39.60
30.00
35.00
40.00
45.00
50.00
26.00
30.30
34.60
39.00
43.30
30.00
35.00
40.00
45.00
50.00
33.60
39.10
44.70
50.40
55.90
36.80
42.90
49.00
55.20
61.30
39.70
46.30
53.00
59.50
66.10
42.50
49.50
56.50
63.70
70.70
55.00
60.00
70.00
80.00
90.00
100.00
47.60
52.00
60.60
69.20
77.90
86.50
55.00
60.00
70.00
80.00
90.00
100.00
61.50
67.00
78.20
89.40
100.90
111.90
67.40
73.50
85.70
98.00
110.50
122.50
72.70
79.40
92.50
106.00
119.20
132.30
77.70
84.00
99.00
113.50
127.50
141.40