Name: Monarch Oil nozzle 19.50GPH / 45PLP
Brand: Monarch
SKU: 19.50GPH / 45PLP

Flow rate

19.5 GPH

Spray angle

45 °

Spray pattern

PLP

Description

The Monarch 19.50GPH / 45PLP is an oil nozzle for oil-fired burners. It has a flow rate of 19.5 GPH, a 45 ° spray angle, and a PLP spray pattern. The nozzle meters and atomises fuel oil into the combustion chamber. The 45 ° angle sets the shape of the spray cone relative to the nozzle axis. The PLP pattern defines the distribution of the spray.

Nozzle selection chart

Flow rate	kg/h	45°	60°	80°
0.40	1.27	R		R
0.45	1.43	R
0.50	1.59	R	R
0.55	1.75	R
0.60	1.91	R
0.65	2.07	R		R
0.75	2.38	R	R
0.85	2.70	R	R
1.00	3.18	R	R	R
1.10	3.50	R
1.20	3.82	R
1.25	3.97	R	R	R
1.35	4.29	R	R
1.50	4.77	R	R	R
1.65	5.25	R	R
1.75	5.56	R
2.00	6.36	R	HO R	PLP R
2.25	7.15	PLP R	PLP R	R
2.50	7.95	PLP R	HO PLP R
3.00	9.54	PLP R	HO PLP R
3.50	11.13	HO PLP R	HO R
4.00	12.72	PLP	BPS PLP
4.50	14.31	PLP	BPS HO PLP	PLP
5.00	15.90	HO PLP	BPS PLP
5.50	17.49	PLP	BPS HO
6.00	19.08	PLP	BPS PLP
6.50	20.67	PLP	BPS PLP
7.00	22.26	PLP	BPS HO PLP
7.50	23.85	PLP	BPS HO
8.00	25.44	PLP	BPS PLP
8.50	27.02	HO PLP	PLP
9.00	28.61	HO PLP	BPS HO	PLP
9.50	30.20	HO PLP	BPS PLP
10.00	31.79		PLP
10.50	33.38	HO PLP	PLP	PLP
12.00	38.15	HO PLP	HO PLP
13.00	41.33	PLP	PLP
13.50	42.92	HO PLP
14.00	44.51	PLP	PLP
15.00	47.69	PLP	HO PLP
15.50	49.28	PLP	PLP
16.00	50.87	PLP
17.00	54.05	PLP	PLP
17.50	55.64	HO
18.00	57.23		PLP
19.50	62.00	HO PLP	PLP
20.00	63.59		PLP
21.50	68.36	PLP	PLP
24.00	76.31	PLP
28.00	89.02	HO PLP
30.00	95.38	HO		PLP
40.00	127.18		PLP	PLP
45.00	143.07			PLP
50.00	158.97			PLP
55.00	174.87		PLP
60.00	190.76			PLP
70.00	222.56			PLP
80.00	254.35			PLP
90.00	286.15			PLP
100.00	317.94			PLP

Choosing and fitting

Oil nozzles of this type are selected by matching the flow rate, spray angle, and spray pattern to the burner manufacturer's specification. The mounting form must match the nozzle adapter or holder on the burner, and the seat and thread must be compared with the old part before ordering. The nozzle is fitted into the holder with the correct seating and tightened to the torque given by the burner maker. The spray angle and pattern must suit the combustion chamber geometry and the air pattern of the burner.

Signs of failure

Oil nozzles of this kind can clog, wear at the orifice, or develop a distorted spray pattern. The equipment may then show poor combustion, smoke, soot deposits, a pulsating flame, or failure to ignite. A common check is to compare the spray pattern and flow rate against the specification, and to inspect the nozzle for blockage or damage.