Name: Danfoss Oil nozzle 7.50GPH,80B 030B0231
Brand: Danfoss
SKU: 030B0231

Flow rate

7.5 GPH

Spray angle

80 °

Spray pattern

Description

This is a Danfoss oil nozzle with a flow rate of 7.5 GPH, a spray angle of 80°, and a B spray pattern. It is used in oil burners to atomise fuel oil into a fine spray for combustion. The 80° angle defines the shape of the spray cone, while the B pattern denotes the distribution of fuel within that cone. The nozzle is identified by the SKU 030B0231.

Nozzle selection chart

Flow rate	kg/h	30°	45°	60°	80°
0.30	0.95			H S	H S
0.35	1.11			S	S
0.40	1.27		S	H S	H S
0.45	1.43		S	S	H S
0.50	1.59	S	S	H S	H S
0.55	1.75		S	H S	H S
0.60	1.91	S	H S	B H S	B H S
0.65	2.07		B S	B H S	B H S
0.75	2.38	S	B S	B H S	B H S SR
0.85	2.70	S	B H S	B H S SR	B H S
1.00	3.18	S	B S	B H S	B H S
1.10	3.50		S	H S	S
1.20	3.82		S	H S	S
1.25	3.97	S	B S	B H S	B H S
1.35	4.29		B S	B H S	B H S
1.50	4.77	S	B S	B H S	B H S
1.65	5.25		S	H S	H S
1.75	5.56	S	S	H S	S
2.00	6.36	S	B S	B H S	B H S
2.25	7.15	S	B S	B H S	S
2.50	7.95	S	B S	B H S	B S
2.75	8.74		B S	B H S	H S
3.00	9.54	S	B S	B H S	B H S
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		B S	B S	B S
5.00	15.90		B S	B S	B S
5.50	17.49		B S	B S	B S
6.00	19.08		B S	B S	B S
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's requirements. The mounting form must also match the nozzle holder, and the thread and sealing face should be compared before ordering. The spray angle and pattern must suit the combustion chamber geometry, and the flow rate must correspond to the burner's rated output.

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. The nozzle should be checked for blockage, wear, and spray shape, and replaced if the pattern is uneven or the flow rate has drifted.