Series NSRH Tri-Lobe Roots Blower-Greentech

Product Information

The NSRH Roots Blower is a three-lobe positive displacement blower designed to deliver stable airflow for a wide range of industrial applications. Manufactured by Greentech International (Zhangqiu) Co., Ltd, it incorporates an optimized impeller profile and advanced manufacturing technology to improve volumetric efficiency and operating stability. The compact structure and reliable performance make it suitable for continuous-duty applications that require consistent air delivery.

Optimized Three-Lobe Rotor Design

Improved Airflow Performance

The three-lobe rotor design helps reduce airflow pulsation compared with conventional two-lobe blowers, providing smoother air delivery during operation. The optimized impeller profile also contributes to improved volumetric efficiency, making the blower suitable for systems requiring stable pressure and flow.

Stable Pressure Characteristics

The blower is designed to maintain consistent airflow under varying operating conditions. Its pressure characteristics make it suitable for applications such as aeration, pneumatic conveying, combustion air supply, and industrial ventilation where reliable performance is required.

Efficient Operating Performance

Enhanced Adiabatic Efficiency

By optimizing the impeller geometry and internal airflow path, the blower achieves improved adiabatic efficiency. Reduced internal energy loss helps lower heat generation during compression and supports stable long-term operation.

Lower Operating Temperature

The efficient compression process reduces temperature rise during operation. Lower discharge temperatures can help improve system reliability and reduce thermal stress on components when operating within the recommended pressure range.

Industrial Applications

Wastewater Aeration

The blower provides continuous airflow for activated sludge systems, oxidation ditches, SBR processes, and other biological wastewater treatment applications. Stable aeration helps maintain dissolved oxygen levels required for efficient biological treatment.

Pneumatic Conveying

It is suitable for conveying powders and granular materials such as flour, cement, plastic pellets, grain, and feed through positive pressure conveying systems. Consistent airflow supports reliable material transportation in industrial production.

High-Pressure Air Supply

The blower can be used in applications requiring relatively high discharge pressure, including combustion air supply, industrial drying, cooling systems, and process air delivery. Its stable pressure performance makes it suitable for continuous industrial operation.

Vacuum Applications

When configured for vacuum duty, the blower can be used in vacuum conveying, filtration, dehydration, vacuum adsorption, and other industrial processes requiring a reliable vacuum source.

Reliable Construction

Precision Manufacturing

Key components are manufactured with precision machining processes to ensure accurate rotor clearance and smooth operation. This helps reduce internal leakage and contributes to consistent performance throughout the service life of the equipment.

Continuous Operation

The blower is designed for continuous industrial use under recommended operating conditions. Its simple mechanical structure allows convenient routine inspection and maintenance, making it suitable for various industrial air supply systems.

Model	speed	Discharge Pressure（kgf/cm2）
		0.10		0.15		0.20		0.25		0.30		0.35		0.40		0.45		0.50		0.55		0.60		0.65		0.70		0.75		0.8
		9.8kpa		14.7kpa		19.6kpa		24.5kpa		29.4kpa		34.3kpa		39.2kpa		44.1kpa		49kpa		53.9kpa		58.8kpa		63.7kpa		68.6kpa		73.5kpa		78.4kpa
		Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La
NSRH 50	1100	1.22	0.30	1.14	0.41	1.12	0.52	1.03	0.67	0.99	0.78	0.92	0.91	0.90	1.04	0.83	1.16	0.78	1.32
	1240	1.38	0.38	1.30	0.50	1.27	0.64	1.18	0.79	1.14	0.92	1.07	1.05	1.05	1.20	0.98	1.37	0.94	1.49	0.88	1.65
	1350	1.53	0.44	1.45	0.61	1.42	0.74	1.32	0.85	1.28	1.04	1.25	1.17	1.19	1.34	1.15	1.53	1.09	1.65	1.03	1.8
	1450	1.66	0.50	1.58	0.64	1.54	0.82	1.43	0.96	1.40	1.14	1.34	1.30	1.30	1.47	1.25	1.63	1.20	1.79	1.16	1.91	1.14	2.15
	1530	1.75	0.56	1.66	0.75	1.63	0.90	1.53	1.07	1.49	1.24	1.45	1.41	1.39	1.58	1.33	1.74	1.30	1.92	1.28	2.12	1.24	2.29	1.22	2.55
	1640	1.89	0.64	1.81	0.81	1.76	1.01	1.71	1.15	1.62	1.37	1.56	1.54	1.52	1.74	1.52	1.74	1.43	2.10	1.40	2.28	1.38	2.49	1.33	2.75
	1730	2.00	0.71	1.91	0.95	1.87	1.10	1.82	1.25	1.73	1.48	1.66	1.68	1.62	1.86	1.60	2.03	1.53	2.25	1.50	2.47	1.48	2.66	1.45	2.93
	1840	2.13	0.80	2.05	1.03	2.00	1.20	1.92	1.39	1.86	1.62	1.79	1.79	1.75	2.02	1.70	2.25	1.67	2.43	1.64	2.65	1.62	2.86	1.58	3.15	1.55	3.22
	1950	2.27	0.89	2.19	1.14	2.13	1.32	2.05	1.51	1.99	1.75	1.92	1.94	1.88	2.18	1.83	2.41	1.81	2.61	1.77	2.81	1.75	3.06	1.71	3.42	1.68	3.43
	2130	2.48	1.02	2.39	1.28	2.33	1.49	2.25	1.73	2.19	1.96	2.12	2.17	2.08	2.42	2.03	2.68	2.01	2.89	1.98	3.15	1.96	3.37	1.91	3.77	1.88	3.75	1.85	4.21
NSRH 65	1140	1.67	0.38	1.55	0.63	1.48	0.80	1.42	1.02	1.32	1.16	1.23	1.37	1.18	1.52	1.14	1.74	1.07	1.82
	1240	1.92	0.48	1.84	0.72	1.73	0.92	1.63	1.14	1.58	1.33	1.52	1.55	1.44	1.74	1.35	1.94	1.32	2.10	1.25	2.32
	1360	2.16	0.56	2.08	0.83	1.97	1.04	1.85	1.20	1.82	1.48	1.47	1.43	1.68	1.94	1.64	2.20	1.56	2.35	1.51	2.55
	1450	2.31	0.63	2.24	0.85	2.14	1.12	2.05	1.36	2.00	1.60	1.95	1.83	1.86	2.10	1.82	2.34	1.74	2.54	1.70	2.75	1.63	3.00
	1530	2.45	0.70	2.35	0.98	2.28	1.20	2.23	1.47	2.14	1.72	2.09	1.95	2.02	2.25	1.97	2.52	1.90	2.72	1.86	2.95	1.79	3.20
	1640	2.66	0.80	2.59	1.05	2.49	1.33	2.44	1.62	2.36	1.89	2.32	2.15	2.24	2.41	2.20	2.75	2.12	2.95	2.08	3.24	2.01	3.46	1.98	3.74
	1740	2.86	0.89	2.78	1.20	2.69	1.46	2.64	1.76	2.56	2.04	2.53	2.32	2.44	2.64	2.41	2.96	2.32	3.16	2.28	3.47	2.21	3.70	2.18	4.13
	1820	3.02	0.96	2.93	1.25	2.85	1.56	2.83	1.88	2.72	2.16	2.68	2.44	2.60	2.79	2.56	3.12	2.48	3.33	2.44	3.65	2.37	3.90	2.34	4.36	2.25	4.46
	1940	3.26	1.07	3.15	1.42	3.09	1.71	3.04	2.05	2.96	2.35	2.92	2.68	2.83	3.02	2.79	3.38	2.71	3.59	2.68	3.92	2.61	4.20	2.57	4.71	2.50	4.79
	2130	3.64	1.24	3.57	1.63	3.47	1.95	3.42	2.32	3.33	2.65	3.27	3.02	3.21	3.35	3.17	3.74	3.09	4.00	3.06	4.32	2.99	4.66	2.96	5.22	2.89	5.30	2.84	5.86
NSRH 80	1140	3.09	1.04	3.02	1.34	2.90	1.60	2.82	1.95	2.78	2.14	2.71	2.45	2.63	2.69	2.52	3.02	2.48	3.22	2.38	3.45	2.36	3.74	2.27	4.09	2.20	4.22
	1230	3.37	1.14	3.25	1.44	3.18	1.76	3.08	2.04	3.01	2.35	2.95	2.63	2.91	2.94	2.80	3.25	2.76	3.53	2.65	3.83	2.63	4.11	2.52	4.49	2.49	4.71
	1300	3.59	1.22	3.52	1.55	3.41	1.89	3.35	2.23	3.27	2.51	3.22	2.85	3.12	3.14	3.05	3.47	2.97	3.77	2.90	4.07	2.84	4.41	2.77	4.82	2.71	5.11
	1360	3.77	1.29	3.65	1.65	3.59	1.99	3.50	2.35	3.46	2.64	3.35	2.97	3.30	3.31	3.20	3.65	3.16	3.98	3.07	4.32	3.02	4.65	2.95	5.18	2.87	5.27
	1460	4.08	1.40	3.99	1.80	3.90	2.17	3.82	2.53	3.76	2.87	3.69	3.22	3.61	3.60	3.53	3.91	3.46	4.32	3.40	4.65	3.34	5.06	3.27	5.67	3.20	5.76	3.14	6.44
	1560	4.38	1.52	4.30	1.95	4.21	2.32	4.14	2.76	4.07	3.10	4.00	3.46	3.93	3.88	3.84	4.41	3.77	4.66	3.71	5.25	3.65	5.48	3.59	6.17	3.53	6.25	3.47	6.97
	1650	4..66	1.62	4.55	2.13	4.48	2.50	4.43	2.94	4.36	3.31	4.28	3.75	4.02	4.14	4.12	4.74	4.05	4.98	3.98	5.62	3.92	5.85	3.84	6.55	3.77	6.72	3.70	7.45	3.63	7.63
	1730	4.90	1.71	4.18	2.25	4.73	2.64	4.67	3.05	4.60	3.50	4.53	3.94	4.46	4.36	4.38	4.82	4.30	5.26	4.24	5.72	4.18	6.18	4.12	6.94	4.06	7.05	4.00	7.84	3.94	7.95
	1820	5.18	1.81	5.12	2.35	5.00	2.80	4.96	3.25	4.88	3.70	4.81	4.13	4.74	4.62	4.65	5.06	4.58	5.57	4.52	6.04	4.45	6.56	4.38	7.27	4.31	7.53	4.24	8.25	4.17	8.52
	1880	5.43	1.91	5.38	2.52	5.27	2.95	5.17	3.46	5.12	3.88	5.04	4.33	4.99	4.86	4.87	5.35	4.82	5.84	4.77	6.35	4.7	6.88	4.63	7.65	4.56	7.82	4.49	8.63	4.42	8.84
NSRH 100	1060	4.57	1.35	4.42	1.83	4.27	2.31	4.07	2.72	3.95	3.10	3.84	3.55	3.70	3.97	3.57	4.46	3.48	4.95	3.35	5.42	3.28	5.86	3.17	6.36	3.07	6.71
	1140	4.97	1.52	4.82	2.03	4.65	2.46	4.52	2.94	4.36	3.41	4.25	3.93	4.12	4.38	4.03	4.86	3.90	5.38	3.83	5.85	3.71	6.38	3.65	6.90	3.51	7.32
	1220	5.34	1..68	5.15	2.22	5.03	2.70	4.87	3.23	4.76	3.71	4.63	4.22	4.53	4.76	4.44	5.27	4.32	5.76	4.25	6.35	4.13	6.90	4.06	7.52	3.93	8.02
	1310	5.73	1.87	5.60	2.43	5.44	2.96	5.34	3.52	5.18	4.05	5.05	4.63	4.95	5.18	4.86	5.77	4.74	6.30	4.66	6.95	4.55	7.48	4.43	8.15	4.36	8.56
	1460	6.53	2.18	6.35	2.75	6.25	3.40	6.13	3.95	6.00	4.62	5.87	5.22	5.78	5.87	5.66	6.54	5.58	7.10	5.45	7.76	5.39	8.45	5.28	9.23	5.19	9.73	5.10	10.44
	1560	6.91	2.40	6.79	3.04	6.64	3.67	6.55	4.32	6.40	4.98	6.30	5.65	6.19	6.30	6.07	6.97	5.99	7.61	5.89	8.35	5.81	9.00	5.70	9.75	5.63	10.35	5.55	11.12
	1680	7.63	2.78	7.47	3.45	7.36	4.18	7.26	4.92	7.13	5.62	7.04	6.33	6.92	7.08	6.84	7.85	6.73	8.50	6.65	9.32	6.55	10.03	6.44	10.77	6.37	11.50	6.25	12.21	6.20	12.61
	1780	8.09	3.05	7.94	3.83	7.84	4.56	7.75	5.35	7.62	6.10	7.54	6.84	7.42	7.63	7.34	8.45	7.23	9.15	7.16	9.95	7.06	10.71	6.95	11.52	6.88	11.98	6.83	13.07	6.70	13.45
	1880	8.57	3.33	8.43	4.15	8.36	4.93	8.23	5.77	8.15	6.55	8.03	7.35	7.95	8.18	7.88	9.03	7.77	9.80	7.65	10.64	7.6	11.42	7.51	12.25	7.43	13.02	7.33	13.86	7.25	14.62
	1980	9.07	3.60	8.94	4.44	8.85	5.31	8.73	6.15	8.65	7.01	8.52	7.92	8.46	8.75	8.39	9.65	8.28	10.45	8.22	11.32	8.12	12.13	8.06	13.05	7.95	13.85	7.85	14.72	7.78	15.65
NSRH 125	980	6.50	1.65	6.32	2.25	6.15	2.80	6.03	3.42	5.95	4.10	5.80	4.73	5.75	5.40	5.62	6.13	5.55	6.70	5.45	7.22	5.37	8.05	5.28	8.92	5.19	9.34	5.10	10.89	5.01	10.65
	1050	6.95	1.90	6.75	2.53	6.63	3.15	6.52	3.83	6.42	4.53	6.32	5.22	6.22	5.95	6.13	6.63	6.03	7.30	5.93	7.93	5.85	8.75	5.76	9.71	5.67	10.15	5.58	11.98	5.59	11.60
	1200	8.00	2.50	7.82	3.22	7.65	3.92	7.53	4.72	7.45	5.50	7.32	6.25	7.50	7.10	7.12	7.92	7.00	8.65	6.95	9.43	5.90	10.25	6.83	11.05	6.72	11.84	6.66	12.55	6.45	13.44
	1310	8.75	2.90	8.53	3.63	8.40	4.50	8.25	5.33	8.19	6.20	8.07	7.03	8.00	7.90	7.93	8.83	7.82	9.65	7.76	10.03	7.64	11.40	7.55	12.22	7.45	13.15	7.43	13.92	7.26	14.93
	1390	9.30	3.20	9.12	4.02	8.95	4.90	8.85	5.82	8.74	6.70	8.65	7.62	8.54	8.50	8.42	9.42	8.37	10.35	8.25	11.27	8.20	12.20	8.14	13.14	8.03	13.95	7.92	14.91	7.85	15.72
	1450	9.72	3.45	9.48	4.23	9.35	5.20	9.23	6.13	9.15	7.10	9.03	8.03	8.95	9.00	8.82	9.93	8.77	10.90	8.73	11.82	8.60	12.80	8.50	13.73	8.42	14.62	8.33	15.62	8.24	16.53
	1530	10.27	3.80	10.09	4.72	9.90	5.55	9.82	6.63	9.70	7.65	9.62	8.62	9.50	9.60	9.43	10.62	9.33	11.60	9.23	12.63	9.15	13.60	9.05	14.63	8.97	15.60	8.87	16.63	8.80	17.52
	1630	10.96	4.30	10.73	5.23	10.57	6.25	10.45	7.23	10.37	8.35	10.25	9.33	10.17	10.35	10.05	11.33	10.01	12.40	9.95	13.53	9.85	14.60	9.75	15.62	9.68	16.81	9.60	17.82	9.50	19.01
	1750	11.78	4.90	11.52	5.82	11.38	6.95	11.27	7.93	11.18	9.18	11.07	10.22	10.99	11.26	10.93	12.35	10.83	13.38	10.73	14.72	10.66	15.80	10.55	16.94	10.46	18.18	10.39	19.14	10.29	20.53
	1850	12.48	5.40	12.22	6.36	12.05	7.55	11.95	8.55	11.85	9.88	11.72	10.92	11.66	12.02	11.55	13.15	11.50	14.2	11.45	15.62	11.34	16.85	11.23	18.05	11.18	19.42	11.10	20.37	11.02	22.03

Model	speed	Discharge Pressure（kgf/cm2）
		0.10		0.15		0.20		0.25		0.30		0.35		0.40		0.45
		9.8kpa		14.7kpa		19.6kpa		24.5kpa		29.4kpa		34.3kpa		39.2kpa		44.1kpa
		Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La
NSRH 150	810	12.01	3.85	11.74	5.03	11.54	6.20	11.33	7.32	11.15	8.50	11.02	9.62	10.86	10.80	10.74	11.97
	860	12.80	4.40	12.64	5.63	12.40	6.86	12.23	8.03	12.03	9.30	11.84	10.47	11.75	11.70	11.63	13.03
	970	14.70	5.58	14.52	7.02	14.30	8.30	14.13	9.63	13.95	11.05	13.82	12.43	13.70	13.80	13.62	15.23
	1110	17.08	7.00	16.92	8.62	16.70	10.15	16.54	11.72	16.37	13.10	16.23	14.84	16.15	16.50	16.07	18.03
	1180	18.25	7.80	18.13	9.43	17.92	11.10	17.75	12.73	17.59	14.40	17.45	16.03	17.37	17.80	17.25	19.42
	1240	19.27	8.45	19.12	10.21	18.95	11.90	18.75	13.62	18.63	15.40	18.55	17.05	18.43	18.90	18.35	20.72
	1400	22.00	10.20	21.85	12.12	21.70	14.00	21.53	15.93	21.40	17.90	21.32	19.92	21.20	21.90	21.17	23.83
	1450	22.85	10.70	22.70	12.75	22.58	14.68	22.45	16.88	22.33	18.70	22.23	20.80	22.12	22.90	22.01	24.85
	1520	23.93	11.65	23.84	13.38	23.68	15.90	23.52	17.43	23.40	20.15	23.30	21.59	23.21	24.60	23.13	25.84
	1620	25.42	13.40	25.32	15.62	25.15	18.00	25.02	20.42	24.86	22.60	24.74	25.03	24.68	27.40	24.55	29.63
	1730	27.05	15.30	26.94	17.63	26.77	20.20	26.63	22.92	26.48	25.30	26.33	27.92	26.27	30.40	26.15	33.02
NSRH 175	970	22.72	9.13	22.20	10.19	21.63	11.25	21.13	13.35	21.05	15.46	20.85	17.57	20.53	19.65	20.21	21.75
	1110	26.75	10.73	26.54	11.94	26.33	13.14	25.83	15.53	25.64	17.96	25.24	20.33	24.83	22.73	24.55	25.10
	1180	28.65	11.24	28.50	12.54	28.35	13.84	27.96	16.35	27.55	18.95	27.17	21.49	26.83	24.07	26.57	26.63
	1240	30.25	12.10	30.10	13.43	29.94	14.75	29.53	17.47	29.13	20.16	28.85	22.85	28.55	25.54	28.27	28.24
	1400	34.22	15.45	33.93	16.70	33.65	18.54	33.35	21.55	33.26	24.54	32.83	27.57	32.55	30.64	32.33	33.63
	1460	35.43	15.90	35.24	17.25	35.04	19.09	34.69	22.25	34.50	25.39	34.09	28.55	33.86	31.74	33.64	34.85
	1520	36.65	16.35	36.54	17.80	36.43	19.64	36.03	22.94	35.73	26.23	35.35	29.52	35.17	32.83	34.95	36.07
	1620	38.67	19.39	38.52	21.13	38.36	22.87	38.03	26.43	37.84	29.94	34.73	33.42	37.15	36.96	36.96	40.43
	1730	40.54	21.24	40.35	23.14	40.17	25.03	39.95	28.74	39.64	32.53	39.34	36.24	39.15	40.03	38.94	43.74
NSRH 200	810	31.77	8.05	31.19	11.28	30.54	14.63	29.95	17.62	29.52	20.66	29.23	23.85	28.87	26.96	28.55	29.97
	900	35.68	9.80	35.05	13.48	34.41	17.12	34.01	20.42	33.62	24.22	33.34	27.55	33.03	30.95	32.75	34.42
	980	39.15	11.85	38.53	15.50	38.08	19.31	37.62	22.91	37.31	27.15	37.07	30.76	36.75	34.53	36.44	38.25
	1070	43.03	13.32	42.50	17.81	42.03	21.22	41.63	25.82	41.43	30.12	41.11	34.45	40.95	38.66	40.58	42.63
	1150	46.50	15.20	46.04	19.95	45.41	23.71	45.31	28.12	45.01	32.74	44.82	37.24	44.62	42.04	44.23	46.64
	1230	49.60	17.02	49.16	21.94	48.72	26.42	48.42	31.23	48.23	36.22	48.11	41.23	47.71	46.02	47.41	50.72
	1310	52.67	19.57	52.55	24.34	51.81	29.23	51.51	34.21	51.32	39.62	51.13	44.81	50.92	50.11	50.62	55.02
	1390	55.77	21.31	54.31	26.64	54.93	31.82	54.73	37.41	54.41	42.92	54.31	48.53	54.12	54.22	53.93	59.21
	1480	59.20	23.93	58.83	28.96	58.41	34.23	58.21	40.41	58.03	46.52	57.82	52.33	57.71	55.11	57.51	63.62
NSRH 250	990					63.10	28.80	62.90	35.80	62.70	41.80	62.50	48.60	62.20	55.30	62.00	62.10
	1170					74.30	33.90	74.00	42.20	73.60	49.10	73.10	56.90	72.70	64.60	72.30	72.50
	1250					79.60	36.30	79.20	45.20	78.80	52.60	78.50	61.10	78.20	69.50	77.90	78.10
	1360					88.70	40.50	88.50	50.40	88.30	58.90	88.10	68.50	87.80	78.10	87.50	87.60
	1480					96.50	44.10	96.20	54.80	96.10	64.10	95.80	74.50	95.50	84.90	95.20	95.80
NSRH 300	990					88.90	40.00	88.7	46.1	88.5	55.3	88.3	64.3	88.1	73.4	87.9	83.2
	1170					105.0	43.7	104.7	54.4	104.4	65.0	104.1	75.9	103.8	86.4	103.5	90.6
	1250					112.2	46.7	112.0	58.2	111.8	69.8	111.6	81.3	111.4	92.8	111.2	97.8
	1360					125.0	52.1	124.8	64.5	124.6	77.5	124.4	90.7	124.2	103.4	124.0	109.1
	1480					135.9	56.2	135.8	70.6	135.6	84.3	135.3	98.6	135.1	112.5	134.9	118.7

Model	speed	Discharge Pressure（kgf/cm2）
		0.50		0.55		0.60		0.65		0.70		0.75		0.8
		49kpa		53.9kpa		58.8kpa		63.7kpa		68.6kpa		73.5kpa		78.4kpa
		Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La	Qs	La
NSRH 150	810	10.65	13.20	10.54	14.42	10.39	15.60	10.26	17.16	10.11	18.00	10.00	20.37	9.84	20.40
	860	11.54	14.25	11.42	15.53	11.27	16.80	11.16	17.77	11.00	19.42	10.85	20.87	10.75	22.03
	970	13.50	16.60	13.33	18.03	13.23	19.40	13.12	21.45	12.95	22.15	12.86	24.34	12.74	24.9
	1110	15.95	19.60	15.82	21.23	15.70	22.80	15.55	25.07	15.45	26.02	15.33	28.45	15.2	29.21
	1180	17.17	21.10	17.05	22.82	16.97	24.40	16.88	26.34	16.76	27.35	16.67	30.15	16.56	30.65
	1240	18.23	22.40	18.15	24.23	18.03	25.80	17.92	27.73	17.82	29.20	17.73	31.43	17.62	32.6
	1400	21.05	25.80	20.95	27.93	20.87	29.70	20.76	33.34	20.68	33.60	20.57	37.97	20.45	37.5
	1450	21.92	26.88	21.83	29.00	21.74	30.90	21.64	33.95	21.54	35.65	21.67	38.54	21.3	39.8
	1520	23.04	28.90	22.95	30.20	22.82	33.30	22.69	34.57	22.54	37.70	22.41	39.12	22.28	42.1
	1620	24.48	32.05	24.40	34.42	24.27	36.90	24.12	40.07	24.01	41.71	23.85	45.83	23.75	46.6
	1730	26.08	35.55	25.99	38.02	25.87	40.80	25.76	44.85	25.62	46.10	24.45	50.27	25.35	51.4
NSRH 175	970	20.12	23.87	19.83	26.03	19.65	28.14
	1110	24.23	27.53	24.07	29.93	23.95	32.33
	1180	26.43	29.15	26.15	31.74	25.95	34.26
	1240	28.05	30.93	27.84	33.56	27.63	36.26
	1400	32.03	36.65	31.82	39.71	31.62	42.76
	1460	33.34	38.01	33.18	41.68	32.94	44.36
	1520	34.65	39.37	34.53	43.65	34.25	45.95
	1620	36.65	43.95	36.55	47.45	36.36	50.97
	1730	38.77	47.53	38.63	51.24	38.45	52.03
NSRH 200	810	28.24	33.14	27.93	36.07	27.65	39.07	27.26	47.34	26.93	48.35	26.62	48.52	26.33	51.73
	900	32.36	37.85	32.05	41.04	31.73	44.35	31.45	47.64	31.14	51.23	30.85	54.52	30.54	57.85
	980	36.05	42.04	35.66	45.55	35.36	49.35	35.05	53.03	34.72	56.75	34.38	60.55	34.05	64.23
	1070	40.17	46.84	39.75	50.73	39.45	54.97	39.35	58.83	39.13	63.73	38.92	67.37	38.75	71.44
	1150	43.75	50.97	43.44	55.07	43.18	59.76	43.03	64.33	42.74	68.63	42.45	73.34	42.25	77.66
	1230	47.01	55.52	46.82	59.81	46.62	64.81	46.41	69.32	46.21	74.22	46.02	78.81	45.83	83.52
	1310	50.42	59.91	50.13	64.52	49.81	69.72	49.72	74.81	49.53	79.71	49.32	84.72	49.11	89.76
	1390	53.61	64.42	53.42	69.11	53.22	74.52	53.03	79.65	52.82	84.91	52.71	90.24	52.52	95.55
	1480	57.36	68.92	57.22	74.22	57.14	80.12	56.92	85.61	56.82	91.32	56.71	96.72	56.53	102.4
NSRH 250	990	61.80	66.70	61.60	73.30	61.40	76.70	61.20	83.10	61.00	88.90	59.90	93.60	59.8	99.7
	1170	72.00	77.80	71.70	85.30	71.30	89.20	71.00	96.10	69.60	101.5	69.40	108.5	69	115.1
	1250	77.40	83.60	77.10	91.70	76.80	96.00	76.40	103.5	76.00	110.8	75.60	118.2	75.1	125.2
	1360	87.20	94.20	86.90	103.4	86.60	108.3	86.30	112.5	86.00	125.5	85.70	133.9	85.4	142.4
	1480	95.00	102.6	94.50	112.5	94.10	117.3	93.70	126.9	93.40	136.2	93.20	145.6	92.6	154.3
NSRH 300	990	87.6	87.1	87.4	94.3	87.1	108.8	86.9	114.7	86.7	123.6	86.4	127.1	86.1	135.1
	1170	103.2	101.1	102.9	110.1	102.7	128.4	102.5	135.3	102.3	145.3	102.1	150.1	101.8	159.8
	1250	111.0	108.8	110.8	119.6	110.6	138.2	110.4	145.7	110.2	155.8	110.0	161.7	109.8	172.4
	1360	123.8	121.3	123.6	133.5	123.4	154.2	123.2	162.6	123.0	176.6	122.7	180.4	122.5	192.3
	1480	134.7	132.1	134.5	145.3	134.3	167.8	134.1	177.8	134.0	190.6	133.8	196.7	133.7	209.9

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Optimized Three-Lobe Rotor Design

Improved Airflow Performance

Stable Pressure Characteristics

Efficient Operating Performance

Enhanced Adiabatic Efficiency

Lower Operating Temperature

Industrial Applications

Wastewater Aeration

Pneumatic Conveying

High-Pressure Air Supply

Vacuum Applications

Reliable Construction

Precision Manufacturing

Continuous Operation

Mine

Waste water treatment

Pneumatic conveying