The construction of this DG series gravel pump is single-stage, single-suction, cantilevered and horizontal. This is a single casing pump. According to the driving type, it can be classified into two kinds of typical structures: self- carrying bracket type, and gear box with pump together. Lubricating type can adopt grease or oil lubrication. The gravel pumps are mainly used for continuous handling of the strong abrasive medium which contains too big solid to be pumped by a common pump. Type GH pumps are high head gravel pumps. The pump wet parts are made of Ni-hard and high chromium wear-resistant alloy materials.The direction of rotation of the pump is clockwise, viewing from the drive end.
Applications of the Single Casing Pump
The mining gravel pump is used for river course, reservoir desalting, coastal reclamation, stretching, deep-sea mining and tailing acquisition etc.
Features of DG Series Gravel Pump
1. The structure of this DG series gravel pump is mainly single-casing and horizontal. The outlet direction can be positioned 360°, easy to install.
2. Shaft Components adopt cylinder structure, which is convenient to adjust the gap between impeller and front wearing plate. The shaft uses grease lubrication.
3. Shaft Seal: expeller drive seal, packing seal, and Mechanical seal.
4. Broad Flow Passage & Good Anti-Cavitation Property & Highly Efficient Wear Resistance.
5. Driving Method: V Belt Drive, Elastic Shaft Coupling Transmission, Gear Box Drive, Fluid Coupling Transmission, Variable Frequency Drive Device and Thyristor Speed Control.
6. The wet parts are made of Ni-hard and high-chrome wear-resistant alloys with good anti-corrosive property.
7. Variable speeds and modals to ensure smooth operation. Additionally, Long service life and high operation efficiency offer reliable performance in a tough operating environment.
Selection Chart
Performatic patameter
Parameter
Type
Capacity(Q)
Head(H)
Speed(n)
Max. Eff.
NPSH
Suction Dia.
Discharge Dia.
Max. Particle Size Allowed
Weight
(m³/h)
(l/s)
(m)
(r/min)
(%)
(m)
(mm)
(mm)
(mm)
(kg)
DG150X100-D
36~252
10~70
3.5~51
600~1400
30~50
2.5~3.5
150
100
82
460
DG200X150-E
137~576
38~160
10~48
800~1400
50~60
3~4.5
200
150
127
1120
DG250X200-S
216~979
60~272
13~50
500~1000
45~65
3~7.5
250
200
178
2285
DG300X250-G
360~1512
100~420
11~58
400~850
50~70
2~4.5
300
250
220
4450
DG350X300-G
504~3168
140~880
6~66
300~700
60~68
2~8
350
300
240
5400
DG450X400-T
864~3816
240~1060
9~48
250~500
60~72
3~6
450
400
254
10800
DG250X200H-S
396~1296
110~360
10~80
500~950
60~72
2~5
250
200
180
3188
DG300X400H-T
612~2232
170~620
28~78
350~700
60~72
2~8
300
250
210
4638
DG400X350H-TU
720~3600
200~1000
20~72
300~500
60~72
3~6
400
350
230
12250
Installation Dimension
Modal
Outline Dimension
A
B
C
D
E
F
G
D1
E1
G1
H
Y
I
N-d
L
M
N
DG150X100-D
1006
492
432
213
38
75
289
-
-
-
54
164
65
4-Ф22
330
203
260
DG200X150-E
1286
622
546
257
54
83
365
-
-
-
75
222
80
4-Ф29
392
295
352
DG250X200-S
1720
920
760
-
-
-
-
640
70
780
90
280
120
4-Ф35
378
330
416
DG300X250-G
2010
1207
851
-
-
-
-
749
64
876
152
356
140
4-Ф41
473
368
522
DG350X300-G
2096
1207
851
-
-
-
-
749
64
876
152
356
140
4-Ф41
502
424
610
DG450X400-T
2320
1150
900
-
-
-
-
880
80
1040
125
350
150
4-Ф48
538
439
692
DG250X200H-S
1774
920
760
-
-
-
-
640
70
780
90
280
120
4-Ф35
455
330
475
DG300X400H-T
2062
1219
851
-
-
-
-
749
64
876
152
356
140
4-Ф41
496
400
605
DG400X350H-TU
2367
1460
1200
-
-
-
-
860
95
1050
150
350
150
4-Ф70
649
448
765
Modal
Outline Dimension
Intake Flange Dimension
Outlet Flange Dimension
Weight
P
Q
R
S
T
U
V
W
D0
D2
n-d1
n0
n2
n-d2
DG150X100-D
330
343
33
32
16
-
8
5
305
260
8-Ф19
254
210
4-Ф19
460
DG200X150-E
457
405
29
29
54
-
6
8
368
324
8-Ф19
305
260
8-Ф19
1120
DG250X200-S
450
533
48
41
-
102
8
6
457
406
8-Ф22
368
324
8-Ф19
2285
DG300X250-G
851
665
48
49
238
-
10
8
527
470
12-Ф22
457
406
8-Ф22
4450
DG350X300-G
851
787
48
48
121
-
8
10
552
495
8-Ф22
527
470
12-Ф22
5400
DG450X400-T
650
921
64
64
-
274
8
10
705
641
16-Ф25
640
584
12-Ф25
10800
DG250X200H-S
450
620
48
42
-
206
8
6
457
406
8-Ф22
368
324
8-Ф19
3188
DG300X400H-T
851
800
60
60
40
-
10
8
533
476
8-Ф29
483
432
8-Ф25
4638
DG400X350H-TU
900
1008
72
82
-
120
8
10
650
600
12-Ф28
600
540
12-Ф28
12247
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