SHANGHAL CHENGJLE HYDRAULIC PUMP CO,LTD
Introduction
Your alternative,independent line of quality fluid power products.
TOP QUALITY PRODUCTS
Manufactured with the finest materials under strict quality control,NT-SERLES inrernal gear pumps are engineered to meet industries most demand- ing applications.Complete with a one year warranty, our products guarantee you dependabie ,on-the-job performance.
CUSTOMER SERVICE
Trust we to provide reliable, cost effective product at the accelerated service levels your business deserves.Rest assured that we take great pride in our ability to respond quickly and efficiently. Your continued satisfaction with the product and after sale service are vital to us as your key supplive.
Now you can have it all
.pwrformance combined with low prices
.Quality with quick delivery
SHANGHAL CHENGJLE HYDRAULIC PUMP CO,LTD
Principle
In the suction zone,the oil flows axially into she tooth gaps as they increase in size,while the engaging teeth displace the oil again the pressure side. ln the tooth gaps the oil is transported from the suction to the pressure side.The crescent and the side walls of the housing seal the suction and pressure zones against eaainst each other.
The engines of modern jets work according to the multistage principle.A high pressure difference is divided up into several compressor stages,each of which only converts part of power.
We applied this principle to internal gear pumps. The multistage stacking of the modular pumping assemblied enables units to operate at 4640 PSl.Fluid flows from the outlet of one stage to the next stage, and each stage participates equally in pumping against the discharge pressure. The fact that each stage shares half the pressure load, reduces stresses on pump components.

NT-SERLES
NT series positive displacement units pumps consist of a single shaft driving a ring gear and pinion gear. NT units features extra large suction and discharge areas,enabling the pump to fill smoothly which helps to reduce noise levels,by keeping fluid velocity low and reducing the possibility of cavitation.The most important feature of NTSeries pumps is the straight line to straight line conjugated gear tooth profile.“As shown in fig. A’’eliminating any “trapped oil”, resulting in ripple-free and low noise operation by the elimination of pressure pulsations.

This results in
.Low noise level ”<65dB”
.High efficency
.Long service to high pressure “460psi”
.Very low viscosity operation down to 0.5 cst
Because of its many desirable features NT intenal gear pumps are ideal for inplant hydraulic systems, especially where noise levels are critical.
SHANGHAL CHENGJLE HYDRAULIC PUMP CO,LTD
Specifications

NT series internal gear pumps come in three different frama sizes,for Low/Me-dium/High pressure applications with a large number of displacement available in each size. NT pumps can be combined, and multiple pumps mean that there are over 1000 possible variations available
Technical date
|
Pressure range |
Displacement |
Flow
rate |
Model |
Continuous/
Peak
pressure |
Model |
Continuous/
Peak
pressure |
Model |
Continuous/
Peak
pressure |
Norm.[cm3/Rev.] |
[1/min] |
|
[psi] |
|
[pis] |
|
[pis] |
10 |
14.5 |
|
|
NT2-D10F |
1813/2330 |
NT2-G10F |
3625/4640 |
12 |
18.3 |
|
|
NT2-D12F |
1813/2330 |
NT2-G12F |
3625/4640 |
16 |
22.6 |
|
|
NT2-D16F |
1813/2330 |
NT2-G16F |
3625/4640 |
20 |
29.5 |
NT2-C20F |
914/1160 |
NT3-D20F |
1813/2330 |
NT3-G20F |
3625/4640 |
25 |
36.4 |
NT2-C25F |
914/1160 |
NT3-D25F |
1813/2330 |
NT3-G25F |
3625/4640 |
32 |
46.8 |
NT2-C32F |
914/1160 |
NT3-D32F |
1813/2330 |
NT3-G32F |
3625/4640 |
40 |
56.9 |
NT3-C40F |
914/1160 |
NT4-D40F |
1813/2330 |
NT4-G40F |
3625/4640 |
50 |
73.2 |
NT3-C50F |
914/1160 |
NT4-D50F |
1813/2330 |
NT4-G50F |
3625/4640 |
63 |
92.1 |
NT3-C63F |
914/1160 |
NT4-D63F |
1813/2330 |
NT4-G63F |
3625/4640 |
80 |
116 |
NT4-C80F |
914/1160 |
NT5-D80F |
1813/2330 |
NT5-G80F |
3625/4640 |
100 |
146 |
NT4-C100F |
914/1160 |
NT5-D100F |
1813/2330 |
NT5-G100F |
3625/4640 |
125 |
181 |
NT4-C125F |
914/1160 |
NT5-D125F |
1813/2330 |
NT5-G125F |
3625/4640 |
160 |
236 |
NT5-C160F |
914/1160 |
|
|
|
|
200 |
291 |
NT5-C200F |
914/1160 |
|
|
|
|
250 |
361 |
NT5-C250F |
914/1160 |
|
|
|
|
At: Pressure=0 n=1450R.P.m (1MPa=145psi)

Pump Dimensions
Model |
NT2- |
NT3- |
NT4- |
NT5- |
Displacement |
C |
D |
G |
C |
D |
G |
C |
D |
G |
C |
D |
G |
A |
5.276 |
6.772 |
8.425 |
10.472 |
B |
4.173 |
5.748 |
7.126 |
9.016 |
C |
0.433 |
0.551 |
0.709 |
0.906 |
I |
1.890 |
2.677 |
3.622 |
3.622 |
K |
3.543 |
4.528 |
5.709 |
6.063 |
L |
8.898 |
8.071 |
9.843 |
11.142 |
10.079 |
12.283 |
13.661 |
12.323 |
15.079 |
16.339 |
14.685 |
18.228 |
M |
4.528 |
3.701 |
5.472 |
5.551 |
4.488 |
6.693 |
6.693 |
5.354 |
8.110 |
8.524 |
6.870 |
10.413 |
N |
φ3.250 0/-0.0020 |
φ4 0/-0.0020 |
φ5 0/-0.0020 |
φ6 0/-0.0020 |
O |
0.472 |
0.630 |
0.787 |
0.945 |
T |
4.528 |
5.472 |
6.693 |
8.504 |
V |
0.157 |
0.276 |
0.276 |
0.276 |
Z |
2.363 |
2.953 |
3.661 |
4.646 |
D |
φ0.984 +0.0004/-0.0002 |
φ1.260 +0.0004/-0.0002 |
φ1.575 +0.0004/-0.0002 |
φ1.969 +0.0004/-0.0002 |
E |
1.654 |
2.283 |
3.228 |
3.228 |
F |
0.315 0/-0.0014 |
0.394 0/-0.0014 |
0.472 0/-0.0014 |
0.551 0/-0.0014 |
G |
1.106 |
1.378 |
1.693 |
2.106 |
Q |
1.417 |
1.969 |
2.756 |
2.756 |
Y1 |
2.323 |
2.756 |
3.071 |
3.504 |
Y2 |
1.890 |
2.047 |
2.323 |
2.756 |
4-d1 |
M10*25 |
M12*30 |
M12*30 |
M12*30 |
4-d2 |
M10*25 |
M10*25 |
M10*25 |
M12*30 |
X1 |
1.181 |
1.417 |
1.693 |
2.008 |
X2 |
0.886 |
1.024 |
1.181 |
1.417 |
S |
φ1.181 |
φ1.496 |
φ1.969 |
φ2.520 |
P |
φ0.787 |
φ0.984 |
φ1.181 |
φ1.496 |
(1b) |
28.9 |
25.8 |
31.3 |
50.5 |
45.2 |
51.4 |
94.8 |
84.4 |
106.7 |
194.0 |
165.3 |
218.3 |
|