WN Dredge Pump

WN series dredge pump is a new type of sludge pump researched &manufactured by our company,this series pumps are single-stage single suction cantilever horizontal centrifugal pumps with advantages of light weight, good wear-resistance, super dredging performance,perfectly suited for the dredge on the whole construction,high multiple economy benefits and so on.It throughout meets requirements of the dredge to dredging pumps.

Strongly wear-resistant casting alloy iron,whole hardness is not less than 50HRC adopted for casting,impeller,front liner and rear liner of wet end parts.

WN dredging pumps impeller passage is very wide, It can continuously transport gravels or high plastic clay and not happens jam, Especially for dredging sands and damming of the river and seas.

WN Series Dredge Pumps can be also integrated with the gearbox, That mean the pump and gear box share one common shaft. So It doesn’t need the pump bearing assembly and frame, In this way, Not only save space, but also reduce cost and breakdown ratio, Let the dredge pump give play to maximum effectiveness.

1.single casing,single stage centrifugal slurry pumps

2. high chrome alloy impeller

3.Large flow in medium head

4.Types of 4 seal to prevent leakage

a):WN200-WN500:Packing Seal, Mechanical Seal, and or combination of mechanical and packing.

b)WN600 to WN1000 uses helical casing L rubber seal which is made of 3 pieces of L seal ring and one special thread shaft sleeve

Typical Applications–

Suction Hopper Dredging

Constructional Material

Sand gravel processing

Barge Loading

Sand Reclamation

WN(G) DREDGING PUMP COMPONENT

WN(G) SERIES DREDGE PUMP MATERIALS OPTION

	VOLUTE	IMPELLERS	CASING	BASE	EXPELLER	EXPELLER RING	SHAFT SLEEVE	SEALS
Standard	Chrome Alloy	Chrome Alloy	Chrome Alloy	SG Iron	Chrome Alloy	Chrome Alloy or SG Iron	SG Iron	Rubber
Options	SG Iron	SG Iron	SG Iron	MS Fabricated Cast Iron	SG Iron	SG Iron	EN56C Ferralium Hasteloy C Ceramic Stellite Chrome Oxide	Nordel Neoprene Viton Butyl EPDM

WN(G) Dredging PUMP SELECT CHART

NOTE:APPROXIMATE PERFORMANCE FOR CLEAR WATER,TO BE USED FOR PRIMARY SELECTION ONLY.

WN dredge pump WORK PARAMETER

Model	Capacity Q (m3/h)	Head H (m)	Speed n (rpm)	Eff. η (%)	NPSH (m)	Inlet Dia. (mm)	Outlet Dia. (mm)	Max. Particles (mm)
200WND	600-800	20-40	700-900	60-65	<4.5	250	200	178
200WN	750-1000	40-65	700-850	70-72	<4	250	200	180
250WND	950-1100	20-40	500-700	65-70	<4	300	250	220
250WN	1100-1300	40-65	500-650	70-74	<4	350	250	144
300WND	1500-1800	20-40	400-600	65-68	<4	350	300	241
300WN	1800-2200	40-65	400-550	74-78	<4	450	300	241
350WN	2600-3000	40-65	400-550	74-78	<4.5	450	350	245
400WN	2800-3200	20-40	400-550	74-78	<4.5	450	400	250
450WN	3200-3850	40-67	350-500	76-80	<4.5	600	450	354
500WND	3600-4200	20-40	220-320	72-75	<4.8	600	500	330
500WN	4500-5500	40-65	350-450	78-80	<4.8	650	500	250
600WN	5000-9000	55-80	280-420	81-85	<6	660	600	220
700WN	8000-12000	60-85	280-380	83-85	<6	760	700	280
900WN	12000-19000	50-75	280-330	85-87	<6	960	900	320
1000WN	16000-25000	23-76	181-290	85-87	<6	1200	1000	350