Vertical Submersible Centrifugal Pump Manufacturer

Vertical Submersible Centrifugal Pump

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Flow range: 10-3300m³/h
Head range: 5-60m
Speed: 980-1460rpm
Matching power: 3-315kW
Diameter range: DN50-DN400
Operation temperature: maximum 110℃
Wet ends material: high chromium wear-resistant alloy
Structure: vertical, single stage, single suction, double impeller

Brief introduction

NSQ submersible centrifugal pumps feature a unique double-impeller structure, including a stirring impeller installed on the base, secondary to the main impeller. The stirring impeller will drive the precipitated sludge into a turbulent flow and then pump the fluid. It features a strong discharge capacity and it will not become easily blocked. As long as the working current remains within the rated current, the allowable solid particle content within the medium can reach 30 to 60%.

During operation, the driver and pump submerge into the water, with a maximum working depth ranging between 20-25m.

Application

NSQ series pumps are used in a variety of industries for heavy media processing, including marine dredging, mineral processing, wet sand suction, waste sludge suction, sand reclamation, barge loading and more. It is an ideal replacement for a traditional mud pump.

Drive type According to different operating conditions, we provide motor and hydraulic drives for customers to choose from.

Motor drive
If using a motor drive, an oil tank seal protection will be used, with a mechanical seal installed inside in order to prevent high pressure water and impurities from entering the motor cavity.
Hydraulic drive
The hydraulic drive features a worry free performance about water entering the motor, because it adapts to higher water pressures and a higher suction height, thus preventing water from entering the motor cavity. The hydraulic drive is also an ideal solution if the pump cannot be easily connected to an external power supply.

Features Suction port structure of the pump with stirring impeller

The stirring impeller on the top of the pump will come into direct contact with the depositional surface. It is capable of controlling the sand concentration in the conveyed media through a diving depth.
Due to the underwater operation of the pump and drive, the suction head is not limited, and features a highly efficient sand absorption and thorough dredging.
Impeller, stirring impeller and other main wet ends are manufactured with a highly wear resistant and corrosion resistant material.

Operation is simple, and the pump requires no auxiliary vacuum pump or stirring device.
The driver submerges into water, and requires no grounding for fixing devices, which saves installation costs.
Triple protection: oil chamber flooding detection and alarm, motor chamber flooding detection and alarm, motor overheating detection and alarm

Working principle

Parameters

Model selection table (clear water performance)

Model	Flow (m³/h)	Head (m)	Motor power (kW)	Rotate Speed (r/min)	Efficiency (%)	Max partial diameter (mm)	Water outlet diameter (mm)
NSQ25-12-3	25	12	3	1450	50	7	50
NSQ20-25-4	20	25	4	1450	43	6	50
NSQ45-15-5.5	45	15	5.5	1450	58	13	80
NSQ20-30-5.5	20	30	5.5	1450	48	7	50
NSQ50-10-5.5	50	10	5.5	1450	60	13	80
NSQ20-15-7.5	20	15	7.5	1460	49	7	50
NSQ25-30-7.5	25	30	7.5	1460	54	7	80
NSQ32-20-7.5	32	20	7.5	1460	53	13	80
NSQ 45-15-7.5	45	15	7.5	1460	55	13	80

NSQ 100-10-7.5	100	10	7.5	1460	60	21	100
NSQ30-30-7.5	24	31	7.5	1460	43	13	80
	30	30
	36	29
NSQ 70-20-11	70	20	11	1460	55	13	80
NSQ 25-40-11	25	40	11	1460	48	13	80
NSQ50-21-11	35	22	11	1460	48	21	100
	50	21
	60	20
NSQ100-16-11	70	20	11	1460	55	21	100
	100	18
	120	15
NSQ25-40-15	18	41	15	1460	35	13	80
	25	40
	30	39
NSQ50-26-15	35	29	15	1460	48	13	80
	50	26
	60	24
NSQ60-30-15	42	33	15	1460	50	13	100
	60	30
	72	27
NSQ75-25-15	52	28	15	1460	51	13	100
	75	25
	90	22
NSQ100-18-15	70	20	15	1460	55	21	100
	100	18
	120	15
NSQ150-15-15	105	17	15	1460	56	21	150
	150	15
	180	13
NSQ 200-12-18.5	200	12	18.5	980		45	150
NSQ150-22-22	105	25	22	980	60	32	150
	150	22
	180	20
NSQ200-15-22	140	17	22	980	60	45	150
	200	15
	240	13.5
NSQ 60-46-30	60	46	30	980		14	100
NSQ 70-38-30	70	38	30	980		21	100
NSQ100-35-30	70	38	30	980	50	21	100
	100	35
	120	31
NSQ150-30-30	105	33	30	980	50	21	150
	150	30
	180	26
NSQ 150-35-30	150	35	30	980	50	21	150

NSQ 200-20-30	200	20	30	980	52	21	150
NSQ 240-20-30	175	23	30	980	60	21	150
	240	20
	280	18
NSQ 300-15-30	300	15	30	980	57	28	200
NSQ100-50-37	70	53	37	980	43	13	100
	100	50
	120	47
NSQ300-20-37	240	22	37	980	58	28	150
	300	20
	360	17
NSQ400-15-37	280	18	37	980	59	28	200
	400	15
	480	12
NSQ 150-35-45	150	35	45	980	48	36	150
NSQ200-30-45	140	33	45	980	53	25	150
	200	30
	240	27
NSQ 500-15-45	500	15	45	980	57	46	250
NSQ150-45-55	105	47	55	980	50	21	150
	150	45
	180	42
NSQ250-35-55	175	38	55	980	53	36	150
	250	35
	300	33
NSQ600-15-55	420	18	55	980	62	32	250
	600	15
	720	11
NSQ200-45-75	140	48	75	980	52	18	150
	200	45
	240	41
NSQ350-35-75	245	38	75	980	60	29	200
	350	35
	420	31
NSQ400-25-75	280	29	75	980	62	29	200
	400	25
	480	23
NSQ 200-60-90	200	60	90	980	50	14	150
NSQ 400-40-90	400	40	90	980	54	28
NSQ500-25-90	350	30	90	980	65	25	200
	500	25
	600	20
NSQ400-50-110	280	54	110	980	56	28	200
	400	50
	480	45
NSQ 600-30-110	600	30	110	980	57	30	250
NSQ1000-18-110	700	22	110	980	68	50	300
	1000	18
	1200	13
NSQ780-26-110	545	29	110	980	68	50	300
	780	26
	935	22
NSQ400-60-132	280	64	132	980	68	28	200
	400	60
	480	55
NSQ500-45-132	350	49	132	980	67	28	200
	500	45
	600	42
NSQ500-55-132	350	59	132	980	70	28	200
	500	55
	600	52
NSQ800-35-132	560	38	132	980	70	42	300
	800	35
	960	32
NSQ1000-22-132	700	27	132	980	71	50	300
	1000	22
	1200	17
NSQ650-52-160	455	56	160	980	65	28	200
	650	52
	780	44
NSQ780-50-185	780	50	185	980	64	38	300
NSQ600-55-200	420	59	200	980	62	28	250
	600	55
	720	50
NSQ800-55-220	560	60	220	980	66	38	300
	800	55
	960	50
NSQ1250-35-220	875	39	220	980	70	45	350
	1250	35
	1500	30
NSQ1500-35-250	1050	40	250	980	72	50	350
	1500	35
	1800	30
NSQ1750-30-250	1225	34	250	980	70	55	350
	1750	30
	2100	25
NSQ2000-35-315	1400	40	315	980	72	60	400

Quick selection chart

Service conditions

The normal power supply is 50Hz/380V three-phase AC power supply. In addition, 400V, 440V, 660V, 1140V and other power supply can be customized.
The maximum temperature of the medias should not exceed 60℃. If not so, the pump should be coated with cooling sets and cooled by external water.
The maximum allowable concentration of the solid particles in the mediums is 45% for ash and 60% for slag.
The diving depth of the pump unit should be no more than 20m and no less than 1m.