JN250

High Pressure Washer

Skid-mounted or trailer-mounted water blasters for industrial cleaning and rust removal of reactors, boilers and other large industrial machinery

• Max. pressure: 250 MPa
• Max. flow: 390 L/min

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JN250 high-pressure washer is designed for ultra-high-pressure water jet cleaning, metal cutting, ship cleaning, and rust removal. It is also suitable for descaling and cleaning condensers, heat exchangers, evaporators, boilers, and various pressure vessels in chemical plants, sugar plants, and power plants.

The washer is equipped with an ultra-high-pressure plunger pump manufactured using advanced industry technologies. The power end adopts forced lubrication, with the high-speed shaft and crankshaft driven by herringbone gears to ensure smooth and reliable transmission. This design reduces friction, enhances lubrication performance, lowers noise levels, and minimizes temperature rise at the power end.

Specifications

JN250 High-Pressure Triplex Plunger Pump (Driven by Electric Motor), Pump Speed: 422 min⁻¹

Plunger Dia. (mm)	Input Speed (r/min) 1480		Pump Speed	422	Transmission Ratio	i=3.5
			Max. Pressure (MPa) under Motor Power below
	Theoretical Flow		132 kW	160 kW	200 kW	250 kW
	L/min	m³/h
20	50	3	140	160	220	250
22	60	3.6	115	140	180	200
24	70	4.2	100	120	160	180
26	87	5.22	80	100	120	140
28	101	6.06	70	80	110	120
30	116	6.96	60	70	95	105
32	132	7.92	52	62	85	95
34	149	8.94	46	55	75	85
36	167	10.02	42	50	65	75
38	186	11.16	38	45	58	65
40	206	12.36	34	34	40	52
42	227	13.62	30	37	48	55
45	261	15.66	27	32	42	48
48	297	17.82	24	28	37	42
50	322	19.32	22	25	34	38
55	390	23.4	18	21	28	32

JN250 High-Pressure Triplex Plunger Pump (Driven by Electric Motor), Pump Speed: 320 min⁻¹

Plunger Dia. (mm)	Input Speed (r/min) 1480		Pump Speed	320	Transmission Ratio	i=4.619
			Max. Pressure (MPa) under Motor Power below
	Theoretical Flow		110 kW	132 kW	160 kW	200 kW
	L/min	m³/h
20	41	2.46	150	180	200	240
22	48	2.88	130	150	180	200
24	56	3.36	110	130	150	170
26	66	3.96	92	110	125	145
28	76	4.56	82	96	110	126
30	88	5.28	70	82	92	110
32	100	6	62	72	85	96
34	113	6.78	55	64	75	85
36	126	7.56	48	58	68	76
38	141	8.46	43	52	60	68
40	156	9.36	39	47	55	62
42	172	10.32	35	42	48	56
45	198	11.88	31	37	42	49
48	225	13.5	27	33	36	43
50	244	14.64	25	30	33	40
55	296	17.76	21	25	28	33

JN250 High-Pressure Triplex Plunger Pump (Driven by Diesel Engine) Standard Parameters

Plunger Dia. (mm)	Input Speed (r/min)		Pump Speed	320	Transmission Ratio	i=4.619
	1480
			Max. Pressure (MPa) under Motor Power below
	Theoretical Flow		132 kW	160 kW	200 kW	250 kW
	L/min	m³/h
20	50	3	150	180	220	250
22	58	3.48	128	150	190	200
24	68	4.08	108	130	160	180
26	80	4.8	92	110	140	150
28	93	5.58	80	95	120	130
30	107	6.42	70	82	105	112
32	121	7.26	62	74	90	100
34	137	8.22	54	65	80	99
36	154	9.24	48	58	70	80
38	171	10.26	43	52	65	71
40	190	11.4	39	46	58	65
42	210	12.6	35	42	52	58
45	241	14.46	31	37	45	50
48	274	16.44	27	33	40	45
50	297	17.82	25	30	37	41
55	360	21.6	20	25	31	34

Dimensions: 1490×785×524 mm