CE Approved SNH Three Screw Marine Oil Pump

Here is a well-structured and improved English version of the provided content, rewritten to sound natural and human-like, with added details to meet the 500-character minimum: --- **Basic Product Information**
  • Model No.: SNH210
  • Screw Suction Method: Double Suction
  • Performance: Leak-Free Operation
  • Certification: CE, ISO
  • Screw Material: 38CrMoAl Alloy
  • Seal Type: Mechanical Seal
  • Packaging: Standard Export Carton
  • Origin: China
  • Screw Number: Multi-Screw Pump
  • Pump Shaft Position: Horizontal
  • Application: Oil Industry
  • Pump Body Material: Cast Iron HT200
  • Bush Material: Bronze
  • Trademark: HOFFWELL
  • Specification: CE, ISO9001
  • HS Code: 84136040
--- **Project Description** Our company specializes in manufacturing the SN triple screw pump, designed according to national standards (GB1088789). This type of pump is a rotor displacement pump that operates based on the principle of screw meshing. As the screws rotate within the pump housing, they create a sealed cavity that moves the fluid along the axial direction, ensuring a continuous and stable flow. It’s ideal for applications requiring consistent pressure and minimal pulsation. The SN series three-screw pump is suitable for transferring non-corrosive oils and similar lubricants. It is widely used in the oil industry, including for lubricating oils, fuel oils, and other non-abrasive liquids. The pump is known for its high efficiency, reliability, and ease of maintenance. ![CE Approved SNH Three Screw Marine Oil Pump](http://i.bosscdn.com//uploads/84/fb/3e/0c0ad90baa42645d09a9f17a8b.jpg) --- **Viscosity Range & Operating Conditions** This pump can handle liquids with viscosities ranging from 3.0 to 760 cSt (1.2 to 100 °E). For high-viscosity fluids, heating may be required to ensure smooth operation. The maximum operating temperature is typically not more than 350°C, depending on the application. --- **Applications** The SN and 3G series three-screw pumps are commonly used for transferring non-corrosive, solid-free mineral oils, animal oils, vegetable oils, and other lubricant liquids. They are particularly effective for media with viscosities between 3 and 760 cSt, and their working temperature should generally remain below 200°C. --- **Key Advantages** 1. Wide range of pressure and flow rates (0.2–600 m³/h, up to 6.3 MPa). 2. Suitable for a broad range of liquid viscosities. 3. Low internal inertia allows for high-speed operation. 4. Excellent self-priming capability, eliminating the need for a bottom valve. 5. Smooth and steady flow with minimal vibration and noise. 6. Less sensitive to gas or dirt ingress compared to other rotary pumps. 7. Robust design, easy to install and maintain. 8. Self-priming feature ensures reliable operation. 9. Available in various configurations (horizontal, flange, vertical). 10. Can be customized with heating or cooling systems as needed. --- **Performance Features** - Stable operation with low noise levels. - No agitation of the medium during transport. - Minimal pulsation in both flow and pressure. - High self-priming ability, no need for pre-filling. - Long service life and high durability. - Equipped with safety valves for enhanced operational safety. --- **Structure Overview** The three-screw pump consists of the pump body, liner, cover, driver screw shaft, two driven screw shafts, mechanical seal, and other accessories. A safety valve is installed on top of the pump body, composed of a valve body, seat, trim, spring, and adjustment screw. It ensures safe operation under varying pressure conditions. --- **Performance Table (at 1450 rpm)**
Speed n=1450r/min
Model ΔP (MPa) Viscosity (mm²/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)
210-46 0.5 193 2.31 200 2.31 205 2.31 206 2.49 207 2.78 208 3.26 152 3.99
1.0 179 4.06 193 4.06 200 4.06 203 4.24 205 4.53 206 5.01 209 5.74
1.5 166 5.81 185 5.81 196 5.81 200 5.99 203 6.28 205 6.76 207 7.49
2.0 154 7.56 179 7.56 192 7.56 198 7.74 201 8.03 204 8.51 206 9.24
2.5 142 9.31 172 9.31 189 9.31 195 9.5 199 9.78 202 10.3 205 11
3.0     166 11.1 185 11.1 192 11.2 197 11.5 201 12 204 12.7
3.5     160 12.8 182 12.8 190 13 195 13.3 200 13.8 203 14.5
4.0         178 14.6 188 14.7 193 15 198 15.5 202 16.2
For parameters of other models, please contact us via email.

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