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CE Approved SN Heavy Oil Three Screw Pump

  • Model NO.: SN440-46
  • Screw Suction Method: Single Suction
  • Performance: Explosion
  • Certification: CE, ISO
  • Screw Material: 38CrMoAl
  • Seal: Mechanical Seal
  • Specification: CE, ISO9001
  • HS Code: 84136040
  • Screw Number: Multi Screw Pump
  • Pump Shaft Position: Horizontal
  • Application: Sewerage Treatment, Food, Chemical
  • Pump Body Material: Cast Iron Ht200
  • Bush Material: Bronze
  • Trademark: HOFFWELL
  • Origin: Cn
Quantity:
1. Project Description

Our company produces the SN triple screw pump with self priming function according to GB1088789 national standards design, manufacture And product. Threescrew pump is the rotor displacement pump. It is using the screw meshing principle, Rely on the rotation of the screw in the pump set of gears mesh, mesh encloses the medium to be delivered In the cavity, the continuous uniform along the screw axial push to discharge, provide stae system pressure.
Three screw pump is suitable for conveying various noncorrosive oil and similar oil and lubrication of the liquid.

2. Conveying liquid viscosity range of 3.0 ~ 760 was/S (1.2 ~ 100 ° E), high viscosity medium by heating Viscosity after delivery. The temperature is generally not exceed 350 ° C.

3. Application:
Three Screw Pumps of SN series and 3G series are used to transferring lubricant, no solid contained and non-corrosive mineral oil, animal oil, vegetable oil and other lubricant liquid mediums, such as lube oil and fuel oil. Preferable viscosity of medium: 3 ~ 760 c. S. T Working temperature should be lower than 200 centigrade.

4. Advantages:
(1) a wide range of pressure and flow, the flow range of 0.2 ~ 600 m3 / h, the highest working pressure up to 6.3 MPa;
(2) wide range of delivery and type of liquid viscosity;
(3) because the rotary inertia force component inside the pump is low, so it can be used in high speed;
(4) inhalation can good, has a self-priming ability;
(5) flow uniformly continuous, small vibration, low noise;
(6) compared with other rotary pump, gas and dirt is not very sensitive to entering;
(7) solid structure, installation and maintenance easy;
(8) the three screw pump, self-priming;
(9) due to the parts of general combination series has a variety of structures, can be used for horizontal, flange and vertical installation;
(10) according to the need to also can provide heating or cooling medium structure;

5. Performance Features
A. Stable working, low noise, without agitation of medium, small pulsation over flux and pressure.
B. High self-priming, no need of bottom valve or oil-pouring before start-up
C. Long life.
D. Equipped with safety valves to ensure operating safely.

6. Structure
Three Screw Pump is composed of pump body, pump liner, pump cover, driver screw axis, two driven screw axis, mechanical seal and other accessories. Safety valve is composed of valve body, seat, safety valve trim, spring and adjustment screw spindle (left hand turning), it will be installed on the top of the pump body.

Speed n=1450r/min
Model  Pressure
   Mpa
Viscosity(mm 2 /s)
1 15 35 75 150 350 750
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
Flow
L/Min
Power
Kw
440-46 0.5 413 4.93 426 4.93 433 4.93 436 5.37 437 5.92 439 7.07 439 8.68
1 .0 390 8.62 413 8.62 425 8.62 430 9.06 433 9.61 436 10.8 437 12.4
1.5 368 12.3 400 12.3 419 12.3 425 12.7 429 13.3 433 14.4 436 16.1
2 .0 647 16.0 389 16.0 412 16.0 421 16.4 426 17.0 431 18.1 434 19.7
2 .5 328 19.7 378 19.7 406 19.7 417 20.1 423 20.7 429 21.8 432 23.4
3 .0     367 23.4 400 23.4 412 23.8 419 24.3 426 25.5 430 27.1
3 .5     356 27.0 394 27.0 408 27.5 416 28.0 424 29.2 429 30.8
4 .0         388 30.7 404 31.2 413 31.7 422 32.9 427 34.5

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