Screw Pump
Screw Pump Range for Viscous and High-Temperature Media
Screw pumps are positive displacement machines: they move a fixed volume per revolution, so flow stays steady against rising pressure and thick liquid no longer collapses performance the way it does in a centrifugal pump. The range covers single screw (progressive cavity) and multi-screw designs for viscous, high-temperature and bitumen transfer duty.
Series overview
- G — single screw (progressive cavity) pump for viscous and solids-bearing media.
- 3G — high-pressure triple screw pump.
- 3GB — triple screw pump for high-temperature duty.
- SM — three-spindle screw pump.
- SN — three-spindle screw pump.
Published performance range
The G and 3GB range is published at 0.1–241.7 m³/h flow, 0.6–2.4 MPa pressure, with temperatures up to 350°C on the 3GB triple screw design. Multi-screw pumps of this type are typically chosen where a smooth, pulseless flow matters — metering, burner feed and transfer lines rather than simple water movement.
Where screw pumps fit best
- Viscous liquids — oils, resins, polymers, syrups and molasses.
- High temperature — up to 350°C on the 3GB series.
- Abrasive or solids-bearing media — progressive cavity designs tolerate contamination better than close-clearance pumps.
- Pulseless transfer — flow is proportional to speed, which suits dosing and burner supply.
Applications
- Bitumen and asphalt transfer
- Resin and polymer transfer
- Molasses and syrup handling
- Sludge transfer
- High-viscosity fluid transfer and high-temperature process duty
Frequently asked questions
What viscosity can a screw pump handle?
Screw pumps are positive displacement machines built for thick liquids, which is why they are the standard answer for high-viscosity transfer where a centrifugal pump would lose efficiency or fail to prime.
What pressure and temperature does the range cover?
The G and 3GB range is published at 0.6–2.4 MPa, with temperatures up to 350°C on the 3GB series.
Single screw or triple screw — which one?
Single screw (progressive cavity) designs handle viscous and solids-bearing media; triple screw designs such as the 3GB are chosen for higher pressure and high-temperature duty.
Technical selection & RFQ
Request a Quote for Screw Pump
Looking for a Screw Pump supplier for an industrial project? Share the operating conditions below so our team can review the duty, recommend a suitable configuration and prepare a quotation. Final model selection and performance should be confirmed against your actual process conditions and the applicable product data.
Information to include in your inquiry
- Duty point: Required flow rate and total head / discharge pressure; include the operating point if known
- Pumped medium: Fluid name, concentration, viscosity, density, solids content and corrosiveness
- Operating conditions: Normal and maximum temperature, inlet pressure, suction lift and duty cycle
- Materials & sealing: Preferred wetted materials, seal type and any leakage or hygiene requirements
- Motor & installation: Voltage, frequency, phase, hazardous-area requirements if applicable, and mounting / connection details
Not all details are available yet? Send the information you have, your datasheet or a process description. We can identify the missing selection data before confirming a model.