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Position：Haina pumps > Screw Pumps > 3G Series Three Screw Pump

3G Series Three Screw Pump

3G Series Three Screw Pump
3G series three screw pump can be conveying lubricating oil, hydraulic oil viscosity is lower than 900 CST have certain lubricity liquid.Below to introduce 3G type 3 screw pump

3G screw pump including:3G for general 3Gc Marine type and special type.3G screw pump is a positive displacement pump rotor type, due to the driving screw and driven screw spiral groove on the pitch and they cooperate with bushing on the surface of the three hole, in the import and export of the pump number level formed between dynamic seal chamber, the dynamic seal chamber will continue to move from pump axial liquid pump discharge, and lose a liquid booster step by step, thus forming a continuous, smooth, axial movement of liquid pressure.

3G screw pump suitable medium range and performance:

3G three-screw pump of liquid for various not containing solid particles, non-corrosive oil lubricity and similar oil liquid, the liquid viscosity is 1.2 ~ 100 °E (3.0 ~ 760 CST), high viscosity liquid can be transmitted through heating after the viscosity.Flow range of 0.2~590 m3/h, high working pressure of 100 bar, high temperature 150 ℃.

3GL Three Screw Pump 3G Screw Pump3G series three screw pump structure:
1, simple structure, has the many kinds of structure forms, generally small flow of 0.2~6.5 m3/h, pump body and pump bushing (generally referred to as the pump body), is an organic whole to shaft seal for the mechanical seal.
Medium flow above the pump sleeve is fixed in a separate pump body, big flow made double suction pump more structure horizontal installation, depending on the medium of the shaft sealing has two kinds of mechanical seals and packing seal.
3G Marine pump installations have horizontal and vertical two kinds, prime mover for Marine ac or dc motor.
2, long service life: 3G three-screw pump active screw driven by a motor, there is no mechanical contact between master and slave rod, and by a liquid pressure driven from rod rotated on its axis, the Lord, from between rod, screw and bushing is a layer of oil film protection, thus pump mechanical friction small, life is a permanent.
3, of liquid in a 3G three-screw pump axial uniform motion in a straight line, so the pressure fluctuation is small, flow stability, low noise, because of the moving parts are inertia small, small starting torque and vibration.
4, 3G three screw pump with high suction ability.
5, in order to ensure the 3G three screw pump, motor and the safety of the pipeline system, secondary flow above the screw pump is with safety valve, when pressure exceeds the set pressure of the relief valve, high pressure oil will flow back to the inlet of the pump.

3g screw pump data sheet:

Model
Flow
pressure
(bar)
Speed
power(KW)
suction height
(m)
Inlet
(mm)
Outlet
(mm)
Motor Type
M3/H
L/Min
shaft power
motor power
3G
3GC
3Gr
3GCr
3GCG
3GCL
3GCLS
screw pump
 
25×4
2.0
1.6
33
26
10
25
2900
1.1
2.2
1.5
3
6
25
20
B3
 
0.8
0.6
13
10
10
25
1450
0.5
1.1
0.75
1.5
6.5
B3
25×6
1.6
1.4
26
23
40
60
2900
3.4
5
4
5.5
6
25
20
B3
0.6
0.4
10
6.6
40
60
1450
1.6
2.5
2.2
3
6.5
B3
30×4
3.6
3.2
60
53
10
25
2900
1.9
3.8
2.2
4
5.5
32
25
B5
1.6
1.2
26
20
10
25
1450
0.9
1.9
1.5
2.2
6
B5
36×4
6.5
6
108
100
10
25
2900
3.2
6.2
4
7.5
5
50
40
B3
2.8
2.4
46
40
10
25
1450
1.6
3.1
2.2
4
5.5
B3
36× 6A
6
5
100
83
40
60
2900
10
15.5
15
18.5
5
50
40
B3
2.4
2
40
33
40
60
1450
4.8
7.7
5.5
11
5.5
B3
42× 4A
10.5
10
175
166
10
25
2900
4.9
9.5
5.5
15
4.5
65
40
B3
4.8
4.2
80
70
10
25
1450
2.4
4.7
4
5.5
5
B3
42× 6A
10
9
166
150
40
60
2900
16
21.5
18.5
30
4.5
65
40
B3
4.2
3.6
70
60
40
60
1450
7.5
10
11
15
5
B3
50×2
17.5
16
18
291
266
300
6
10
4
2900
5.2
8.1
3.6
5.5
11
4
4.5
80
50
B3.B5.V1
8.2
7.5
9
136
125
150
6
10
4
1450
2.6
4.0
1.9
3
5.5
2.2
5
B3.B5.V1
50× 4A
17.5
16
291
266
16
25
2900
11.6
16.5
15
18.5
4.5
80
50
B3
8.2
7.5
136
125
16
25
1450
5.8
8.2
7.5
11
5
B3
70×2
24
23
25
400
383
415
6
10
4
1450
7
9.8
5
11
15
5.5
4.5
100
65
B3.B5.V1
15
14
250
233
6
10
970
4.8
6.5
5.5
7.5
5
B3.B5.V1
70×4
24
22
400
366
16
25
1450
14
20.5
18.5
22
4.5
100
65
B3
15
14
250
233
16
25
970
7.5
13.5
11
18.5
5
B3
85×2
43
40
44
716
666
730
6
10
4
1450
12.2
18
9.5
15
22
11
4.5
125
80
B3.B5.V1
28
25
30
466
416
500
6
10
4
970
8.5
10
6.7
11
15
7.5
5
B3.B5.V1
85×4
43
40
716
666
16
25
1450
25
36
30
45
4.5
125
80
B3
28
25
466
416
16
25
970
19.5
25.4
22
30
5
B3
100×2
70
68
72
1166
1133
1198
6
10
4
1450
20
27.7
16
22
30
18.5
4.5
150
100
B3.B5.V1
45
43
47
750
716
780
6
10
4
970
13.8
18.2
9.6
15
22
11
5
B3.B5.V1
 
110×2
94
90
96
1566
1500
1560
6
10
4
1450
23
34
17
30
45
22
4.5
200
150
B3.B5.V1
60
56
63
1000
933
1050
6
10
4
970
17.3
27.7
12.8
18.5
30
15
5
B3.B5.V1
110×4
94
90
1566
1500
16
15
1450
53
80
75
90
4.5
200
150
B3
60
56
1000
933
16
25
970
36
48
45
55
5
B3
3GS
3GCS
3GSr
3GCSr
3GCL
3GCLS
100×2
146
140
132
150
2433
2333
2200
2495
6
10
16
4
1450
35
50
80
30
45
55
90
37
4
250
150
B3.B5.V1
90
86
80
94
1500
1433
1333
1565
6
10
16
4
970
26
32.5
43
22
30
37
45
30
160D×4
300
292
280
306
5000
4866
4662
5090
6
10
16
4
1450
68
102
160
45
75
110
200
55
4
300
200
B3.B5.V1
194
186
180
200
3230
3096
2997
3330
6
10
16
4
970
48
66
98
33
55
75
110
37
200D×3
590
570
550
9823
9490
9157
6
10
16
1450
135
200
320
160
220
 
4
400
300
B3.B5.V1
380
370
360
6327
6160
5994
6
10
16
970
90
135
215

 

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