River Boat Sand and Gravel Dredging Pump

• Max.Head: 30-50m
• Max.Capacity: >400 L/min
• Driving Type: Diesel
• Impeller Number: Single-Stage Pump
• Working Pressure: High Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Model NO.: WS
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Single Stage Pump
• Mounting Height: Since Irrigation Centrifugal Pumps
• Impeller: Closed
• Usage: Pump, Pumps, Slurry Pump, Circulating Pump, Sand Pump
• OEM: Accepted
• Discharge Size: 4-40"
• Flow: 180-25000 M3/H
• Head: 20-85 M
• Certificate: CE, SGS, ISO
• Transport Package: Standard Export Wooden Cases
• Specification: WS
• Trademark: Naipu
• Origin: China
• HS Code: 8413709990
• Production Capacity: 500 Sets/Month

Product Description

Features:

1. Dredge pump suitable for dredging ship:

The structure of 200WS-500WS type pumps are single-casing, single-stage, single-suction, cantilever and horizontal. According to the connection with the gear box, two structures can be offered: Self-carrying bracket and pump-box assembly. The lubrication for the bracket is grease or thin oil.
The structure of 600WSG-1000WSG type pumps are double-casing, single-stage, single suction, cantilever and horizontal. It has self-carrying bracket. Lubrication is forced thin oil lubricating. The double-casing design can ensure the liner can work till it is worn out, and if the liner crack, water can not enter into the pump.

2. Easy to Disassembly and Installation, Convenient Maintenance:

WSG type pump adopts front-disassembly structure in favor of easy disassembly and maintenance. Also it is equipped with special disassembly tools for each different part according to each parts features.
The standard trapezoidal quadruple thread is adopted to connect the impeller and shaft, which not only transmits strong torque but also is easy to disassembly.

3. Good Performance on NPSH:

The good NPSH performance of WN type pump ensures the strong suction ability as well as deeper dredging depth and denser dredging concentration.

4. Good Wear-resistant Performance, Long Service Time of Wet Parts:

Wet parts of this kind of dredging pump-impeller, liner and front & back liner plate are adapted anti-wear cast iron alloy whose hardness is more than 58HRC, who has both strong anti-attack feature and higher resistance wear and resistance abrasion features.

5. Reliable Shaft Sealing Without Leakage:

The shaft of 200-500WSG dredging pump uses the mechanical sealing or stuffing sealing or mechanical-stuffing compound sealing.
The shaft of 600-1000 WSG dredging pump adopts spiral sleeve L (shape) rubber sealing device that consists of three L sealing ring and one special thread shaft sleeve

Clear Water Performance for WS-WSGPumps
Model	Capacity m³/hr	Head    m	Impeller Speed /rpm	Efficiency /%	Inlet Diameter /mm	Outlet Diameter /mm	NPHr	Max Flowed Particle/mm		Pump Weight  / ton
							m	Five Pieces	Three Pieces
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	550--1000	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	350	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	35
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	58
900WSG	12000--19000	50--75	280--330	83--85	950	900	6	210	320	85
1000WSG	16000--25000	23--76	180--290	85--87	1100	1000	6	230	350	126