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NYP Series Internal Gear Pump

  • Model NO.: NYP111A
  • Tooth Flank: Straight Tooth
  • Power: Electric
  • Applications: Transfer Pump
  • Mounting: Horizontal
  • Pump Body Material: Cast Iron Ht200
  • Shaft Material: 45# Steel
  • Trademark: HOFFWELL
  • Origin: China
  • Mesh Form: Internal Engaged
  • Tooth Curve: Involute
  • Type: Internal Gear Pump
  • Certification: CE
  • Application: Asphalt, Bitumen, Molasses, Latex
  • Gear Material: 40cr
  • Seal: Packing Seal or Mechanical Seal
  • Specification: ISO, CE
  • HS Code: 84136029
Quantity:
Brief introduction 

NYP series internal gear pump is a kind of new positive displacement pump, and is designed according to the different fields requirements of petroleum, chemical insustry, paint, medicine, foodstuff and so on. It widely applies to a variety of mediums with different property and viscosity because of special structure and selected different pump's materials. 
Proper medium temperature: -10. C-200. C 
Proper medium viscosity: 1.0cst-300, 000cst 

structure 

(1)working principle 
Driving gear (outside rotor) with internal tooth drives the internal rotor and turns in same direction in the full closed pump body. The pump casting and crescent of the front cover separate the inlet from the outlet. When it turns, negative pressure formed at the suction port, the liquid inhaled and being taken to the outlet by rotor, then the liquid is expelled from the discharge port as the gears mesh. The transportation of the liquid finished 
(2)Structure Feature 
Component: Internal rotor, outside rotor, shaft, pump body, front cover, seal, bearing etc. 
The seal of pump adopts packing seal or mechanical seal. When the delivered medium is high temperature, high viscosity or strong corrosion, packing seal should be adopted. 
When the delivered medium is easy crystalline materials, we can design the heat preservation jacket in pump body and front cover in order to melt the medium with steam when working, the pump can be also fitted with the safety valve. 
The pump set is composed of the pump, motor and base plate, the direction way is belt wheel driving or coupling driving. 
The rotation direction is clockwise from motor end. 

Advantage 

(1)steady delivery without pulsation, little vibration and low noise 
(2)outstanding self-priming ability 
(3)the pump can deliver the varied corrosion medium if the pump parts selected proper materials. In addition the working temperature can reach max 200. C

NYP Series Internal Gear Pump
Other pump models:

 Model      Path mm Displacement
theory
L/100rev
Viscosity
cSt
Speed
r/min
Pressure(MPa) Connections
0.4 0.6 0.8 1.0
Shaft power(kw)Capacity(L/min)
NYP0.78 15 0.78 20 1390 0.17/9.3 0.23/9.0 0.28/8.8 0.32/8.6 G1/2"
60 1390 0.18/9.5 0.24/9.2 0.28/9.0 0.33/8.9
200 1390 0.31/10.4 0.35/10.2 0.39/10.0 0.43/9.9
600 1390 0.39/10.4 0.44/10.3 0.48/10.3 0.52/10.2
2000 910 0.23/6.8 0.27/6.8 0.30/6.8 0.33/6.7
6000 720 0.24/5.4 0.31/6.1 0.30/6.8 0.40/6.8
NYP2.3 25 2.3 20 1400 0.38/28.4 0.49/27.5     G1"
60 1400 0.59/29.2 0.65/28.8    
200 1400 0.61/30.0 0.72/29.6    
600 1400 0.92/31.9 0.96/31.7    
2000 910 0.61/19.9 0.68/19.7    
6000 720 0.77/16.32 0.83/16.2    
NYP3.6 40 3.6 20 1450 0.69/46.7 0.94/45.9 1.18/45 1.44/43.4
Flange
60 1450 0.81/47.5 1.09/46.7 1.37/45.9 1.57/44.7
200 1450 1.06/49.7 1.31/49.2 1.56/48.8 1.79/47.3
600 1450 1.45/49.9 1.61/49.6 1.77/49.3 1.93/49
2000 960 1.28/34.3 1.41/33.8 1.54/33.7 1.65/33.6
6000 640 1.08/23.0 1.18/22.9 1.28/22.9 1.37/22.8
20000 583 1.22/20.5 1.24/20.4 1.25/20.4 1.38/20.3
60000 455 0.84/16.3 0.91/16.2 0.98/16.1 1.01/16
NYP7.0
NYP7.0A
(The 
original 
Model :
NYP3
NYP3A)
40 7.0 20 1450 1.36/98.1 1.8/96 2.0/94.7 2.4/93
Thread
60 1450 1.45/99 1.9/97 2.2/96.4 2.6/95
200 1450 1.62/99.8 2.0/98 2.3/97.5 2.7/97
600 960 1.4/62 1.6/65 1.8/44 2.0/64
2000 960 1.8/67 2.0/66 2.3/65 2.6/65
6000 640 1.5/44.5 1.7/44 1.8/44 2.0/44
20000 583 1.6/40.5 1.9/40 2.1/40 2.2/40
60000 455 1.46/31.5 1.8/31 1.9/31 2.0/31
NYP24 50 24 20 720 1.8/165 2.3/161 2.8/158 3.4/155
Flange
60 720 2.0/166 2.6/164 3.1/162 3.7/158
200 610 1.9/143 2.5/141 3.0/139 3.5/136
600 541 2.1/127 2.6/125 3.0/124 3.5/122
2000 475 2.2/112 2.6/111 2.9/110 3.4/109
6000 357 2.0/85 2.3/84 2.6/83 2.9/83
20000 303 1.9/72 2.2/72 2.4/72 2.6/71
60000 228 1.6/54 1.8/54 2.0/54 2.3/54
NYP52
NYP52A
(The 
original 
Model :
NYP10
NYP10A)
50 52 20 720 4.3/362 5.8/355 6.9/348 8.1/340
Thread
60 720 4.7/364 6.2/358 7.3/352 7.5/346
200 610 4.6/309 5.9/304 6.9/300 8.0/294
600 541 4.9/275 6.0/271 6.8/268 7.8/264
2000 475 5.0/243 5.9/238 6.6/237 7.6/235
6000 357 4.1/184 4.9/182 5.3/181 6.2/180
20000 303 3.8/157 4.6/156 5.1/155 5.6/155
60000 228 3.1/119 3.7/118 4.0/118 4.5/118
NYP80 80 80 20 615 5.2/471 6.9/461 8.5/451 10.0/433
Flange
60 615 5.5/474 7.2/465 8.8/457 10.5/448
200 544 5.7/421 7.2/414 8.6/408 10.1/401
600 479 6.0/372 7.3/367 8.5/362 9.8/356
2000 417 6.5/326 7.7/322 8.9/319 10.1/315
6000 305 5.6/239 6.6/237 7.5/326 8.4/233
20000 228 5.5/180 6.4/179 6.9/178 7.7/177
60000 188 5.5/149 6.1/149 6.7/149 7.2/148
NYP111
NYP111A
(The 
original 
Model :
NYP30
NYP30A)
80 111.4 20 615 6.7/660 9.2/647 11.2/634 13.6/622
Flange
60 615 6.9/664 9.4/652 11.5/642 13.9/631
200 544 7.1/589 9.3/580 11.0/573 13.2/563
600 479 7.3/521 9.5/514 11.1/508 13.1/502
2000 417 7.7/455 9.7/450 11.0/447 12.7/442
6000 305 6.9/335 8.4/332 9.4/331 10.6/328
20000 228 6.3/251 7.5/250 8.2/249 9.2/248
60000 188 6.2/209 7.1/208 7.6/208 8.5/207
NYP160 100 160 20 600 8.9/930 12.1/916 15.3/902 17.5/888
Flange
60 600 9.4/935 12.6/922 15.8/910 19.0/898
200 550 12.3/866 15.3/859 18.3/852 21.3/845
600 480 10.2/754 12.8/747 15.4/740 18.0/737
2000 355 9.1/560 11.1/556 13/552 15.1/548
6000 319 10.0/505 11.7/502 13.5/500 15.2/497
NYP220 125 220 20 430 8.8/902 11.9/880 15.0/858 18.0/836
Flange
60 430 9.0/909 12.0/890 15.0/871 18.0/852
200 355 8.5/753 11.1/739 13.7/726 16.3/713
600 320 9.4/682 11.8/671 14.1/660 16.5/649
2000 254 9.1/544 11.0/537 13.0/530 15.1/523
6000 244 10.1/483 11.9/478 13.6/473 15.4/468
20000 160 9.1/347 10.5/345 11.9/343 13.3/341
60000 117 8.4/256 9.4/255 10.4/254 11.4/253
NYP320 125 320 20 430 13.0/1306 18.0/1270 22.0/1235 26.0/1200
Flange
60 430 13.0/1316 18.5/1285 22.0/1255 26.5/1225
200 355 11.8/1091 15.5/1068 19.1/1046 22.8/1024
600 320 13.2/987 16.5/968 19.7/950 22.9/932
2000 284 14.2/881 17.4/867 20.6/854 23.8/841
6000 222 13.7/693 16.2/684 18.7/675 21.2/666
20000 168 13.2/529 15.3/525 17.3/522 19.4/519
60000 125 12.0/397 13.7/396 15.3/395 16.9/394
NYP650 150 650 20 315 19.0/1921 26.0/1857 33.0/1794  
Flange
60 315 20.0/1940 26.4/1886 33.2/1832  
200 284 17.9/1756 24.0/1711 30.4/1666  
600 253 17.6/1572 22.7/1534 28.9/1500  
2000 196 15.7/1225 20.6/1201 24.5/1176  
6000 160 16.0/1008 19.8/993 22.3/978  
20000 117 13.6/745 16.5/738 19.2/731  
60000 100 15.0/645 17.2/643 19.5/640  
NYP727
( The 
original 
Model :
NYP50)
150 727 20 315 21.5/2135 29.4/2058 37.3/1980  
Flange
60 315 22.4/2157 29.8/2090 37.3/2026  
200 280 19.6/1928 26.7/1874 33.5/1820  
600 245 19.6/1696 25.1/1652 31.2/1611  
2000 200 18.7/1394 23.3/1363 28.5/1334  
6000 170 19.2/1195 23.3/1175 27.9/1155   
20000 125 17.0/888 20.1/878 23.3/868   
60000 100 16.8/720 19.5/717 22.3/713  
NYP1670 200 1670 20 250 38.0/3852 52.0/3690 66.0/3529  
Flange
60 250 40.0/3900 54.0/3763 68.0/3626  
200 225 37.5/3535 50.0/3424 62.5/3313  
600 195 37.0/3079 48.0/2990 58.6/2900  
2000 160 35.0/2547 44.0/2485 53.0/2422  
6000 135 34.6/2177 42.0/2138 50.0/2100  
20000 112 35.0/1830 41.5/1810 48.0/1790  
60000 85 36.0/1405 35.7/1400 40.6/1392  

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