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SN Series Tiple Screw Fuel Oil Pump

  • Model NO.: SN220R46E6.7W23
  • Screw Suction Method: Single Suction
  • Performance: Explosion
  • Certification: CE, ISO
  • Color: Blue
  • Pump body material: Cast iron
  • Bush material: Aluminum/nodular cast iron/bronze
  • frequency: 50Hz/60Hz
  • Transport Package: Export Standard Wooden Case
  • Origin: China
  • Screw Number: Multi Screw Pump
  • Pump Shaft Position: Horizontal
  • Application: Food, Chemical, Oil
  • Connection: Flange
  • Mounting: Horizontal or Vertical
  • Screw material: 38CrMoAl
  • Seal: mechanical seal
  • Trademark: HOFFWELL
  • Specification: ISO, CE
  • HS Code: 84136040
SN positive displacement horizontal triple screw pump


1. Advanced structure and excellent performance: The traditional high-pressure balance technique is changed, and the axial force balance of power and idler rotors at low-pressure is adopted, with even stress distribution, almost no deformation of screw, reliable and stable operation, no impulse, and low noise;
2. Unique design and reliable sealing: The mechanical sealing method is adopted for pump, with the sealing cavity interlinked to the suction; at the same time, the structure is designed to provide sufficient cooling cycle to the sealing, to ensure the sealing effect and no leakage;
3. Optimized improvement and aesthetic appearance: The traditional inlet and outlet positions are changed, so that they are located at both sides of the pump but in a straight line, resulting in a pleasing appearance; meanwhile, the design is innovated and therefore the inlet and outlet could be exchanged on user's site without any change to pipelines;
4. Pump core assembly for convenient maintenance and accessory replacement: The pump is in a simple and compact structure, and the pump core assembly is in assembly construction; therefore, the pump core can be taken out as a whole, which is convenient for maintenance and repair;
5. Pressure relief valve for the protection of pump: The valve equipped on the product can provide transient protection to the pump, to prevent overload, however, it can not be used as the overflow valve for the pipe.
6. Various combinations of inlet and outlet, convenient for piping on site;
7. Various mounting available, to meet different mounting requirements in the working conditions.

For handing of oil and medium with lubricating properties.
Viscosity from 1cst to 760 cst, temperature below 150 deg C,
Capacity from 0.3m3/h to 321m3/h,
Head from 0.4Mpa to 4MPa.

1. In heating techniqzzues as fuel oil and medium with lubricating pvoperties.
2. In the engineering industry as hydraulic and telemotor pumps.
3. In the chemical and food industry as cargo transfer or supply pumps.
4. In the marine field as transfer, booster, fuel oil pumps as well for ship hydraulics.

>>>Model Explantion
                                    Descriptions of main parameters for pump type
Descriptions of auxiliary parameters 
Industry code
Series code
Mounting type
Codes for screw parameters
Lubrication type of bearing
Relative position between inlet and outlet
Special requirement
 Operating speed
Specification code
Spiral direction of power rotor
Inclination angle
1. Industry code: No code (common use); C (special use on vessels); D (special use in electric power industry); S (special use in petrochemical industry); the "special use" means the product is specially designed and produced for an industry to meet the special requirements of the industry;

2. Mounting type: H (horizontal mounting); F (bracket-type mounting); S (vertical mounting); K (Immersion-type mounting);

3. Specification code: Refer to the performance parameter table for the details;

4. Spiral direction of power rotor: R (common use, with right-handed spiral direction of power rotor); L (left-h

>>>FAQ--- Frequently Asked Question

1. How to get our quotation in time, please answer following questions:

 A.What liquid do you transfer? Oil, Water, Food or Corrosive Chemical liquid, with solid particle or not, and so on~

 B. What's the flow or capcity (m3/h, L/m)? 

 C.What's the discharge head (m, feet, Mpa, bar )

 If you do not have any request, we will do as our normal standard.

 D. Contact us to get the quotation:  

2. OEM: Ok 

3. MOQ: 1set

4. Package: Standar export Plywood Case or Styrofoam with Carton

5. Shipping ways: By sea, By air, By express

6. Lead time: 3-15days

7. Term of  payment:  100% T/T, Aliexpress,  L/C, Westunion

8. Why choose us: more than 20 years experiences manufacturer 

                              Good quality with competitive pirce   

                              ISO2000, CE certificate, CCS certificate

                              Professional after-sales service 

SN Series Tiple Screw Fuel Oil Pump

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