WS Dredging Pump

WS series dredging pumps are newly developed sludge pumps, researched and manufactured by our company based on advanced technologies introduced from both domestic and international sources, aiming at the dredging and damming of rivers and seas. From practical experience at home and abroad, it is widely recognized that dredging pumps are the main equipment for river and sea treatment. This method is considered environmentally friendly, highly efficient, and energy-saving, without causing secondary pollution.

WS pump is a single-stage, single-suction, cantilevered horizontal centrifugal pump with advantages such as light weight, excellent wear resistance, and superior dredging performance. It is perfectly suited for use throughout the entire dredging process and offers significant overall economic benefits. It fully meets the requirements of dredging operations.

The pump mainly consists of the pump head, a gearbox specifically designed for the dredging pump, a high-elastic coupling, and a control and monitoring system for the drive unit. Highly wear-resistant cast alloy iron, with a hardness of no less than 58 HRC, is adopted for the impeller, front liner, and rear liner of the wet parts. The pump casing is made of wear-resistant alloy steel, designed to withstand pressure and abrasion.

As part of EMAC, PumpMac provides abundant premium pump-driven power pack options, including WPT PTO, Advance gearboxs, and pump head, as well as customized water pump sets. We also offer a set of NFPA 20 standard engine power pack accessories, including air intake shut-off valves, DC contactors, engine control panels, jacket water heaters, and more. We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, and from troubleshooting to overhaul technical support.

Our company can select different kinds of materials according to different media to meet specific dredging requirements. If you are in need of an engine model that is not currently available on our website, please contact the EMAC sales team for technical details and related documents. Our well-trained sales and engineering teams will assist you with all products and technical documents available here at Naipu Pump.

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General Specifications of WS Series

Flow range:	180~25000 m³/h
Head range:	20~85 m
Speed range:	180~1400 r/min
Maximum allowable power:	N/A

WS Model Description

300WS(G)
300 : Outlet diameter of dreging pump (mm)
WS : Dredging pump
G : high-head of dradging pump
Aiming at the dredging and damming of the river and seas.
Mainly consists of the pump head, gearbox specifically for the dredging pump, high elastic coupling and supervisor system of the driving device for the dredge

Construction Drawing for Type WS(G)


NO	Part Name
1	SHAFT
2	FRAME
3	MECHANICAL SEAL ASSEMBLY
4	CONNECTING PLATE
5	REAR LINER
6	PUMP CASING
7	COVER PLATE
8	IFRONT LINER
9	IMPELLER
10	SUPPORT

ParameterType	Flow Rate (Q)	Head (H)	Speed (n)	Efficiency (η)	Impet Diameter	Outlet Diameter	NPSH (r)	Max. Diameter of Flowed Partcle		Pump Weight
	Flow Rate (Q)	Head (H)	Speed (n)	Efficiency (η)	Impet Diameter	Outlet Diameter	NPSH (r)	Five Pieces	Three Pieces	Pump Weight
	m³/h	m	r/min	%	mm	mm	m	Five Pieces	Three Pieces	T
100WS	180 – 250	25 – 45	1000 – 1400	50 – 58	150	100	<3.5	50	82	0.5
150WS	250 – 550	20 – 40	1200 – 1400	58 – 60	200	150	<4	76	127	1.1
150WSG	350 – 700	40 – 65	800 – 980	68 – 71	200	150	<3.5	84	140	1.9
200WS	350 – 700	20 – 45	700 – 980	60 – 65	250	200	<4.5	105	178	2.3
200WSG	550 – 1000	40 – 65	700 – 850	70 – 72	250	200	<4	108	180	3.2
250WS	700 – 1100	20 – 45	500 – 750	65 – 70	300	250	<4	132	220	4.5
250WSG	900 – 1500	40 – 60	500 – 650	70 – 74	300	250	<4.5	86	144	4.6
300WS	1100 – 1800	20 – 40	400 – 600	65 – 68	350	300	<4.5	144	241	5.5
300WSG	1500 – 2200	30 – 65	400 – 550	74 – 78	450	300	<4	144	241	8
350WSG	2000 – 3000	40 – 65	400 – 550	74 – 78	450	350	<4	147	245	8.8
450WSG	3000 – 4000	35 – 67	350 – 500	76 – 80	600	450	<4.5	125	254	12
500WSG	4000 – 5500	40 – 65	350 – 450	78 – 80	650	500	<4.8	150	250	17
600WSG	5000 – 9000	55 – 80	320 – 400	81 – 85	650	600	<6	160	220	30
700WSG	8000 – 12000	60 – 85	280 – 380	83 – 85	750	700	<6	180	280	50
800WSG	10000 – 15000	50 – 70	260 – 360	79 – 80	850	800	<6	200	300	70
900WSG	12000 – 16000	50 – 75	280 – 330	83 – 85	950	900	<6	210	320	95
1000WSG	16000 – 25000	23 – 76	180 – 290	85 – 97	1100	1000	<6	230	350	130
——END——
1. “RU” : rubber , “M” alloy wear-resistant material. 2.Capacily range recommened : 50%Q'<Q<110%Q’ ( Q’≈Appropriate to capacily at highest officiency point ) 3.NPSH : Appropriate to point Q recommended at highest speed.