Type DGD pumps are single-stage, single-suction, cantilevered, horizontal, centrifugal slurry pump. They are designed for continously handling the most difficult higher abrasive slurry which contain too big solids to be pumped by common pumps. They are suitable for delivering slurry in Mining, Explosive sludge in metal melting, Dredging in dredger and course of rivers, and other filed. This series of pump especially suitable for the high flow, high concentration and high head working condition, good performance of NPSH and high abrasion- resistant, can be widely used in high temperature and strong abrasive slurry transportation.
Design features
1.The unique segmented clamp ring on larger size units and solid on smaller pumps,facilitates casing rotation to any angle, reducing the need for costly high wearing bends. Minimal maintenance is required.
2. Impeller expulsion vanes reduce gland pressure and intrusion of high concentrations of solids in the gland area. Efficiency is maintained by minimising suction side recirculation.
3. Specially designed and shaped impeller vanes allow the handling of extraordinarily large particles. The unique casing design and sealing vanes prevent abrasive solids intrusion at the sealing faces.
4. The large, robust casing has been designed to reduce internal velocities resulting in minimum efficiency loss and improved casing wear life. The casing is made up of three components to reduce maintenance time and costs associated with a one- piece design. (Except the 150/100D-DGD which has two components)
5. Warman heavy-duty grease lubricated taper roller bearing assemblies are fitted as standard. A rigid large diameter shaft with reduced overhang minimises deflection and vibration under all conditions ensuring trouble free operation. Unusually high service factors enable the assembly to carry all radial and axial thrusts.
6. A unique "-10" (dash 10) end cover assembly comprising of V-seals, double piston rings and an external flinger with grease lubricated labyrinths are standard with all slurry pumps.
structural features
★ The bolt connect the high strength fram and cylinder bearing assembly are easy to installation and disassemble, and also easy to adjust the impeller clearance.
★ The discharge direction of pump can be oriented in any direction, easy maintenance.
★ Packing seal and expeller seal are optional according to the requirment.
★The wet-parts as casing,impeller,front/back liner are made of high chromium abrasive-resistance alloys that ensure the longlife.
★ The design of this pump is single casing and wide wet-passage that ensure the pass of large particles, good performance of NPSH and high abrasion- resistant.
DGD( H) Clear Water Performance | |||||||
Type | Max.Motor Power KW | Capacity Q(m3/h) | Head H(m) | Speed n(r/min) | Max Eff% | NPSH (m) | Min.passage size(mm) |
150/100D-DGD | 60 | 300 | 45 | 1400 | 58 | 4 | 82 |
200/150E-DGD | 120 | 500 | 37 | 1400 | 60 | 3.5 | 127 |
250/200F-DGD | 260 | 950 | 43 | 1000 | 65 | 8 | 178 |
250/200S-DGD | 560 | 950 | 43 | 1000 | 65 | 8 | 178 |
300/250G-DGD | 600 | 1530 | 52 | 850 | 65 | 9 | 220 |
350/300G-DGD | 600 | 1700 | 65 | 700 | 73 | 5 | 241 |
450/400T-DGD | 1200 | 3300 | 40 | 500 | 72 | 6.3 | 254 |
500/450H-DGD | 1400 | 4300 | 39 | 400 | 66 | 8 | 330 |
550/500H-DGD | 1400 | 5600 | 57 | 400 | 70 | 7 | 380 |
200/150S-GDGD | 560 | 880 | 78 | 1100 | 71 | 4.8 | 140 |
250/200S-GDGD | 560 | 1300 | 70 | 950 | 72 | 5 | 180 |
300/250G-GDGD | 600 | 2220 | 67 | 700 | 73 | 8.2 | 210 |
400/350TU-GDGD | 1200 | 3050 | 59 | 500 | 72 | 6.5 | 230 |
Application
Typical Applications
Cyclone Feed
Slag Granulation
Suction Hopper Dredging
Dredging
Barge Loading
Mill Discharge
Sand Reclamation
Sugar Beet
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