DN250 Water Cooling Rotary Three Lobe Roots Blower Cast Iron

• After-sales Service: Yes
• Warranty: 1 Year
• Type: Sewage Treatment Equipment
• Usage: Industrial, Agriculture, Hospital, Waste Water Treatment
• Material: Casting Iron Ht200
• Application: Sewage and Waste Water Treatment
• Model NO.: SLW
• Advantage: High Quality, Low Noise, Energy Saving
• Installation Way: Horizontal Type. Vertical Type
• Maintenance: Good After -Service
• Certification: ISO 9001 CE Eac
• Customized Support: OEM, ODM, Obm
• Transport Package: Export Wooden Case
• Specification: Standard and Customized models
• Trademark: JSMY
• Origin: China
• HS Code: 8414599010
• Production Capacity: 10000 Sets/Year

Product Description

Product Description
1)The Roots blower is a volumetric fan.
2)The air flow is proportional to the speed. The three-lobe impeller rotates each time, and two impellers breathe and exhaust for three times
Compared with the two-lobe type, the gas pulsation is less, the load changes is smaller, the mechanical strength is stronger, the noise is low, and the vibration is small
3)  There are 2pcs three-lobe impellers on the two parallel shafts. The slight gap is between the impellers and the inner surface of the elliptical tank and each impeller.
The impeller rotates at a constant speed in the opposite direction. A certain amount of gas surrounded by the tank and the impellers is transported from suction side to exhaust side
 4)  Each impeller and synchronizing gear always keep the correct phase position, mutual contact does not be happened , so it can be speeded up without  internal lubrication, it is simple , stable operation and performance, it adapts to various purposes and uses in a wide range of fields.

Three lobe impellers working principle


Main structure


Main features:

• Driven by helical synchronous gears: Balanced transmission, low noise
• Adopting the advanced impeller curve in the world: increasing the Volume ratio, high efficiency
• All bearings are imported from NSK or SKF bearing, it has good loading performance and long lifetime.
• The oil seal is used CR seal imported from USA.
• Cooling way is air-cooled and water-cooled
• The impeller uses the impeller & shaft integrated structure. It avoids the defects of the impeller shaft split structure.
• Compact structure, the same inlet and outlet impeller structure, flexible installation
• There are various installation ways. The air blower can be installed into horizontal air inlet and vertical air inlet using the same bottom
• It can also change the position of the drive shaft, right or left shaft drive, upper shaft or lower shaft drive
• Double oil tank structure, splash lubrication is used on the gear end and the drive end, which improves the better heat dissipation, and also improves the better lubrication effect of the bearing and gear
• Water cooling Roots blower specifications 

        

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW (5003)	65 (2.5")	1000	1.72	4.72	1.62	5.47							4
		1150	2.37	5.34	2.22	6.29	2.07	6.65	1.84	7.20
		1250	2.83	5.76	2.69	6.84	2.57	7.20	2.44	7.80
		1350	3.22	6.22	3.06	7.38	2.88	7.85	2.78	8.75
		1500	3.78	6.90	3.66	8.20	3.47	9.40	3.18	9.70	3.13	10.60
		1600	4.20	7.36	4.03	8.75	3.88	9.96	3.79	10.30	3.59	11.25
		1750	4.75	8.05	4.65	9.57	4.94	10.80	4.34	11.20	4.19	12.20
		1850	5.11	8.51	4.95	10.22	4.80	11.10	4.65	11.80	4.49	12.70
		2000	5.56	9.21	5.35	11.20	5.17	11.50	5.00	12.70	4.85	14.00
SLW (5006)	100 (4")	850	2.42	6.41	2.17	7.80							6
		1000	3.60	7.55	3.24	8.61	3.18	10.50	3.05	11.80
		1150	4.57	8.68	4.26	9.90	4.02	11.90	3.79	13.40
		1250	5.22	9.44	4.91	10.77	4.73	12.60	4.55	14.10
		1350	5.98	10.20	5.66	11.84	5.47	13.20	5.30	14.60	5.07	15.20
		1500	7.14	11.33	6.88	13.45	6.65	14.00	6.48	15.50	6.34	17.20
		1600	7.58	12.09	7.32	14.27	7.17	15.20	7.05	17.10	6.92	18.80
		1750	8.85	13.22	8.60	15.50	8.44	16.52	8.29	18.60	8.13	20.40
		1850	9.29	14.32	9.14	15.40	9.01	17.36	8.87	19.53	8.74	21.50
		2000	10.20	15.96	10.02	16.20	9.85	18.62	9.70	20.40	9.55	22.80

 

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW (6005)	80 (3")	850	2.42	7.07	2.22	8.10							5
		1000	3.48	8.31	3.33	9.50	3.13	10.30	2.98	11.50
		1150	4.55	9.56	4.44	11.20	4.24	12.00	4.09	13.64
		1250	5.35	10.40	5.27	12.20	5.05	13.20	4.77	14.70	4.46	15.80
		1400	6.46	11.20	6.38	13.00	6.14	15.20	5.86	16.50	5.66	17.30
		1500	7.27	12.20	7.12	14.20	6.87	15.90	6.67	17.60	6.46	19.00
		1650	8.08	13.71	7.88	16.00	7.58	17.30	7.45	19.30	7.31	21.00
		1800	8.99	15.20	8.79	17.50	8.59	19.72	8.40	21.00	8.23	22.30
SLW (6008)	125 (5")	850	5.56	11.12	5.05	12.50							8
		1000	7.58	13.08	7.13	15.20	6.50	17.30	6.11	18.80
		1150	9.49	15.05	8.77	16.50	8.21	18.80	7.78	21.20	7.43	23.80
		1250	10.61	16.36	9.86	18.20	9.31	20.80	9.04	23.00	8.84	25.60
		1400	12.49	18.97	12.15	20.40	11.72	23.20	11.31	25.70	10.91	28.50
		1500	13.74	19.62	13.33	22.20	12.98	24.70	12.67	27.90	12.32	30.80
		1650	15.25	21.58	14.95	24.20	14.69	26.80	14.39	30.20	13.94	33.50
		1800	16.77	23.50	16.36	26.20	15.98	29.00	15.60	32.70	15.25	36.20

 

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW 7006	100 (4")	700	3.84	9.80	3.64	11.40	3.48	12.50					6
		850	5.86	11.91	5.56	13.84	5.30	14.30	5.07	15.20
		1000	7.88	14.02	7.47	16.28	7.29	18.20	7.02	19.30	6.82	20.80
		1150	9.60	16.13	9.29	17.50	9.07	20.50	8.75	22.20	8.39	23.80
		1250	10.75	17.53	10.50	20.36	10.26	22.50	9.91	23.50	9.60	25.70
		1400	12.53	19.63	12.32	22.54	11.97	23.90	11.51	26.80	11.11	30.20
		1500	13.73	21.03	13.53	24.00	13.28	25.70	12.93	28.90	12.63	31.40
SLW 7011	150 (6")	700	9.14	17.05	8.28	19.00							10
		850	12.32	21.20	11.83	22.60	11.62	26.80	11.41	29.00	11.11	32.20
		1000	15.55	25.35	15.15	27.00	14.95	30.50	14.75	34.20	14.59	38.00
		1150	18.99	28.20	18.38	31.20	18.18	35.60	17.98	38.70	17.78	43.00
		1250	21.01	31.50	20.60	33.80	20.40	38.00	20.20	42.90	20.00	47.80
		1400	24.24	34.00	23.74	37.70	23.53	42.30	23.18	47.58	22.83	52.80
		1500	26.36	37.50	26.06	40.40	25.76	45.70	25.40	51.40	25.05	57.20

 

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW 8016	200 (8")	700	11.98	25.78	10.98	30.98							15
		850	17.11	31.30	16.12	37.50
		1000	22.24	37.50	21.25	42.83	20.39	48.83	19.50	55.80	18.75	60.84
		1150	27.37	42.35	26.38	49.25	25.52	56.15	24.63	63.06	23.88	69.96
		1250	30.79	46.03	29.81	53.53	28.95	61.04	28.06	68.54	27.30	76.04
		1400	35.93	51.55	34.94	59.96	34.08	68.36	33.19	76.77	32.43	85.17
		1500	39.35	55.24	38.35	64.24	37.50	73.24	36.61	82.25	35.86	91.25
SLW 8024	250 (10")	700	18.65	38.33	17.27	45.62							20
		850	26.34	46.54	24.96	55.20
		1000	34.03	55.75	32.64	63.75	31.36	72.74
		1150	41.71	62.97	40.33	73.31	39.06	83.65
		1250	46.84	68.45	45.46	79.69	44.18	90.93
		1400	54.53	76.66	53.15	90.65	51.86	101.84
		1500	59.65	82.14	58.27	95.62	57.00	110.92

 

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW 9020	250 (10")	700	22.26	42.31	20.85	49.27							20
		850	30.76	51.38	29.35	59.83
		1000	39.26	60.44	37.84	70.38	36.59	80.32	35.35	90.26	34.22	100.20
		1150	47.75	69.51	46.34	80.94	45.10	92.37	43.84	103.80	42.71	115.23
		1250	53.42	75.55	52.00	87.98	50.76	100.40	49.51	112.83	48.38	125.25
		1400	61.92	84.62	60.51	98.54	59.26	112.45	58.01	126.37	56.88	140.28
		1500	67.59	90.67	66.17	105.57	64.92	120.48	63.68	135.39	62.54	150.30
SLW 9030	300 (12")	700	34.58	63.01	32.54	73.42							25
		850	47.29	76.52	45.26	90.66
		1000	60.00	90.86	57.96	104.89	56.19	119.76
		1150	72.71	103.52	70.68	120.62	68.90	137.72
		1250	81.19	112.53	79.15	132.55	77.38	149.70
		1400	93.90	126.03	91.87	146.85	90.09	167.66
		1500	102.37	135.03	100.34	157.33	98.57	179.64

 

model	Exhaust port Dia (MM)	Speed	Different pressure for different Inlet air flow  (M^3/min) & shaft power (kw)										Cooling water volume
			0.6kgf/cm^2		0.7kgf/cm^2		0.8kgf/cm^2		0.9kgf/cm^2		1.0kgf/cm^2
		RPM	6000mmH20		7000mmH20		8000mmH20		9000mmH20		10000mmH20
			0.06Mpa		0.07Mpa		0.08Mpa		0.09Mpa		0.1Mpa
			M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	M^3/min	KW	L/min
SLW 10027	300 (12")	700	53.83	84.75	51.67	98.76							25
		850	58.53	90.75	56.37	104.57
		1000	67.92	99.71	65.77	116.19	63.88	132.68	62.00	149.16	60.32	165.64
		1150	77.33	110.86	75.16	127.81	73.29	145.94	71.41	164.08	69.71	182.21
		1250	91.42	124.64	89.25	145.24	87.38	165.85	85.50	186.45	83.81	207.05
		1400	105.50	139.59	103.34	162.67	101.46	185.75	99.59	208.82	97.90	231.90
SLW 10034	300 (14")	700	69.51	106.65	67.02	124.31							30
		850	75.44	112.92	72.94	132.98
		1000	87.27	125.47	84.79	146.24	82.54	167.02
		1150	99.12	138.01	96.63	160.87	94.38	183.72
		1250	116.88	156.83	114.39	182.80	112.14	208.77
		1400	134.64	175.65	132.16	204.74	129.91	233.82

Blower Main Parts Materials

Casing	Cast iron HT 200
Rotor (Impeller &shaft)	QT 500-
Gear	20CrMnTi
Bearing	Japanese NSK
Oil seal	USA CR
Oil tank	Double Oil Tanks, Clean Site

Impeller CNC machining center

Working shop
 



Application pictures


*** After running more than 1 year , there are very clean on site , no oil leakage

Packing & delivery
Our wooden case is with fumigation sign, It is Moisture-proof