Marine120 Kw High Head Sand Gravel Pump For Dredging River, Mining
Product Introduction
D, G, GH series pumps are horizontal, single pump casing
centrifugal pump. 2, using a special clamp to clamp the pump body
and pump cover, the pump outlet direction can be installed at any
position of 360 degrees Easy to use. 3, the bearing assembly of the
pump adopts a cylindrical structure, which is convenient for
adjusting the gap between the impeller and the pump body, and can
be completely removed during maintenance. The bearing is greased
and lubricated.4, the shaft seal form of the pump has packing seal,
and the impeller 6 is used. The transmission mode mainly includes
V-type V-belt drive, flexible coupling drive, gear reducer drive,
variable frequency drive, thyristor Speed, etc. 7, the material of
the over-current component is made of high-hardness wear-resistant
alloy cast iron. 8, using a variety of speeds and a variety of
variants, so that the pump operates under the best conditions, GH
pump is a high lift pump. It is mainly used for continuous
conveying of strong abrasive materials that cannot be transported
due to the large size of the slurry. Suitable for dredging, sifting
gravel, dredging rivers, mining and metal smelting slag conveying.
Specification
Model | 8 / 6 E - G |
Allowable Max.Power | 120 kw |
Capacity | 126 - 576 m³/h |
Head | 6 -45 m |
Speed | 800 - 1400 r/min |
Max.Eff. | 60 % |
NPSH | 3 - 4.5 m |
Impeller Dia. | 378 mm |
Application
-dredging
-sifting gravel
-dredging rivers
-mining
-metal smelting
-blasting
Type meaning for dredge pump
8 / 6 E-G(H)
8----------------Suction Diameter (inch )
6----------------Discharge Diameter (inch)
E----------------Support Type
G----------------Pump Model
H----------------Gravel Pump High Head
Structure Features:
1. This series of gravel pumps is a centrifugal pump with
horizontal and single pump shell structure. It is also a kind of
slurry pump in a broad sense.
2. The pump body and the pump cover are clamped by a special clamp.
The discharge direction of the pump can be at any position of 360
degrees, which is convenient to install and use.
3. The bearing assembly of the gravel pump adopts a cylindrical
structure, which is convenient for adjusting the gap between the
impeller and the pump body, and can be completely removed during
maintenance.
4. The bearing is greased.
5. There are three types of shaft seals for gravel pumps: packing
seals, impeller seals, and mechanical seals.
6. The gravel pump has a wide flow path, good cavitation
performance, high efficiency and wear resistance.
7. Transmission modes mainly include: V-type V-belt drive, flexible
coupling drive, gear reducer drive, fluid coupling drive, thyristor
speed control, etc.
8, over-current parts material: nickel-containing high chromium
wear-resistant alloy.
9, using a variety of speeds and a variety of variants, so that the
pump operates under optimal conditions.
10, long service life, high operating efficiency, can meet a
variety of poor transport conditions.
G(H) gravel pump material list for parts:
| Part Name | Material | Specification | HRC | Application | OEM Code |
| Bowl, door, back liner & impeller | Metal | AB27: 23%-30% chrome white iron | ≥56 | Used for higher wear condition with pH between 5 and 12 | A05 |
| AB15: 14%-18% chrome white iron | ≥59 | Used for higher wear condition | A07 |
| AB29: 27%-29% chrome white iron | 43 | Used for lower pH condition especially for FGD. It also can be used
for low-sour condition and desulfuriation installation with pH not
less than 4 | A49 |
| AB33: 33%-37% chrome white iron | | It can transport oxygenated slurry with pH not be less than 1 such
as phospor-plaster, nitric acid, vil, phosphate etc. | A33 |
| Expeller & expeller ring | Metal | B27: 23%-30% chrome white iron | ≥56 | Used for higher wear condition with pH between 5 and 12 | A05 |
| Grey iron | | | G01 |
| Stuffing Box | Metal | AB27: 23%-30% chrome white iron | ≥56 | Used for higher wear condition with pH between 5 and 12 | A05 |
| Grey iron | | | G01 |
| Door clamp plate, bearing house & base | Metal | Grey iron | | | G01 |
| Ductile iron | | | D21 |
| Shaft | Metal | Carbon steel | | | E05 |
| Shaft sleeve, lantern ring/resctrictor, neck ring, gland bolt | Stainless steel | 4Cr13 | | | C21 |
| 304 SS | | | C22 |
| 316 SS | | | C23 |
| Joint rings & seals | Rubber | Butyl | | | S21 |
| EPDM rubber | | | S01 |
| Nitrile | | | S10 |
| Hypalon | | | S31 |
| Neoprene | | | S44/S42 |
| Viton | | | S50 |
Performance table:
| Pump Model | Allowable | Clear Water Performance | |
| Max. Power | Capacity Q | Head | Speed | Max.Eff. | Impeller. Dia. (mm) |
| (kw) | m3/h | H (m) | n(r/min) | (%) |
| 6/4D-G | 60 | 36-250 | 5-52 | 600-1400 | 58 | 378 |
| 8/6E-G | 120 | 126-576 | 6-45 | 800-1400 | 60 | 378 |
| 10/8S-G | 560 | 216-936 | 8-52 | 500-1000 | 65 | 533 |
| 10/8F-G | 260 | 216-936 | 8-52 | 500-1000 | 65 | 533 |
| 10/8S-GH | 560 | 180-1440 | 24-80 | 500-950 | 72 | 711 |
| 12/10F-G | 260 | 360-1440 | 10-60 | 400-850 | 65 | 667 |
| 12/10G-G | 600 | 360-1440 | 10-60 | 400-850 | 65 | 667 |
| 12/10G-GH | 600 | 288-2808 | 16-80 | 350-700 | 73 | 950 |
| 14/12G-G | 600 | 576-3024 | 8-70 | 300-700 | 68 | 864 |
| 16/14G-G | 600 | 720-3600 | 18-44 | 300-500 | 70 | 1016 |
| 16/14TU-G | 1200 | 324-3600 | 26-70 | 300-500 | 72 | 1270 |
| 18/16G-G | 600 | 720-4320 | 12-48 | 250-500 | 72 | 1067 |
| 18/16TU-G | 1200 | 720-4320 | 12-48 | 250-500 | 72 | 1067 |
Construction Drawing
Selection & Performance Chart
