Danfoss Oil nozzle 2.75GPH,45S 030F4138

SKU 030F4138 Brand Danfoss

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Key specifications

Flow rate2.75 GPH
Spray angle45 °
Spray patternS
all specifications (3) ↓
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Specifications

Description

This is a Danfoss oil nozzle with a flow rate of 2.75 GPH, a 45° spray angle, and an S spray pattern. It is used in oil burners to atomise fuel into a fine spray for combustion. The 45° angle defines the cone width of the spray, while the S pattern denotes a solid spray distribution. The 2.75 GPH rating specifies the volume of oil delivered per hour at the rated pressure. It is identified by SKU 030F4138.

Nozzle selection chart

Flow rate kg/h 30°45°60°80°
0.30 0.95 HS HS
0.35 1.11 S S
0.40 1.27 S HS HS
0.45 1.43 S S HS
0.50 1.59 S S HS HS
0.55 1.75 S HS HS
0.60 1.91 S HS BHS BHS
0.65 2.07 BS BHS BHS
0.75 2.38 S BS BHS BHSSR
0.85 2.70 S BHS BHSSR BHS
1.00 3.18 S BS BHS BHS
1.10 3.50 S HS S
1.20 3.82 S HS S
1.25 3.97 S BS BHS BHS
1.35 4.29 BS BHS BHS
1.50 4.77 S BS BHS BHS
1.65 5.25 S HS HS
1.75 5.56 S S HS S
2.00 6.36 S BS BHS BHS
2.25 7.15 S BS BHS S
2.50 7.95 S BS BHS BS
2.75 8.74 BS BHS HS
3.00 9.54 S BS BHS BHS
3.50 11.13 S S S
3.75 11.92 B B B
4.00 12.72 S S S
4.50 14.31 BS BS BS
5.00 15.90 BS BS BS
5.50 17.49 BS BS BS
6.00 19.08 BS BS BS
6.50 20.67 B B B
7.00 22.26 S
7.50 23.85 B B B
8.00 25.44 S
8.50 27.02 B B B
9.00 28.61 S
10.00 31.79 B B B
11.00 34.97 B B B
12.00 38.15 B B B
13.50 42.92 B B B
15.00 47.69 B B B
17.00 54.05 B B
19.50 62.00 B B
22.00 69.95 B B B
25.00 79.49 B B
28.00 89.02 B B
31.50 100.15 B B B
35.00 111.28 B

Choosing and fitting

Nozzles of this type are selected by matching the flow rate, spray angle, and spray pattern to the burner manufacturer's specification. The mounting thread and nozzle body dimensions must also match the nozzle holder. Before ordering, compare the existing nozzle's markings and physical size with the replacement. Installation requires correct seating and tightening to the holder without cross-threading.

Signs of failure

Nozzles of this kind can clog, wear at the orifice, or develop a distorted spray pattern over time. When this happens, the burner may produce a smoky flame, fail to ignite reliably, or show unstable combustion. A fitter should check for fuel flow, spray shape, and any visible blockage or wear on the nozzle.

All specifications

Flow rate2.75 GPH
Spray angle45 °
Spray patternS

Part numbers

SKU030F4138