Long Coupled Screw Pumps
Need help specifying the right screw pump? Contact our pump experts today!
Handle Lubricating Fluids With Ease With Screw Pumps
Screw pumps are designed to handle fluctuating flow rate and pressure without losing efficiency, making them ideal for clean, lubricating fluids such as fuels, oils and lubricants. Being long coupled, our screw pumps are easier to maintain and are also more durable for continuous use as they have additional bearings in the pump head to share the strain of operation. So why choose Castle Pumps for your long coupled screw pump requirements? As well as over 15 years' experience specifying the right screw pump for our customers' requirements, our range includes marine type approved models which are trusted by over 22,000 vessels for safety out at sea thanks to their quality construction and long life design. This proof of reliability makes them a popular choice for industrial applications involving fuels, oils and lubricants. If this sounds like what you are looking for, contact our technical pump experts today for help with your long coupled screw pump application.
products
- Max Flow Rate: 190M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 30M³H
- Max Head: 500M
- Max Temperature: 100°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN25 to DN65
- Max Flow Rate: 190M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 450M³H
- Max Head: 120M
- Max Temperature: 100°C
- Max Viscosity: 1500 cP
- Solid: 0mm
- Size: DN200 to DN250
- Max Flow Rate: 190M³H
- Max Head: 160M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0m
- Size: DN25 to DN150
- Max Flow Rate: 450M³H
- Max Head: 120M
- Max Temperature: 100°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN200 to DN250
- Max Flow Rate: 450M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 190M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 190M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 30M³H
- Max Head: 500M
- Max Temperature: 100°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN25 to DN65
- Max Flow Rate: 190M³H
- Max Head: 120M
- Max Temperature: 160°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN125 to DN150
- Max Flow Rate: 450M³H
- Max Head: 120M
- Max Temperature: 100°C
- Max Viscosity: 1500 cP
- Solids: 0mm
- Size: DN200 to DN250
FAQs
Triple screw pumps consist of a driving screw and two idler screws. The motor shaft rotates the driving screw which in turns rotates the intermeshing twin idler screws that the fluid passes along.
Screw pumps are ideal for handling fuels, oils and lubricants, thanks to their ability to maintain efficiency regardless of fluctuations in viscosity. As lubricating fluids' viscosities are susceptible to change as their temperature changes, the performance of a screw pump is able to remain consistent.
When it comes to fuel and oils, gear pumps are a more known technology, when infact screw pumps have a lot of benefits. They have a smaller footprint in comparison, provide a less turbulent smoother flow, less noise and vibrations and better mechanical efficiency. For a more detailed comparison read our article https://www.castlepumps.com/info-hub/screw-pumps-vs-gear-pumps
Unlike other positive displacement pumps, screw pumps cannot handle solids so waste oils are usually avoided unless used with a strainer/filter.
Yes upon request. Being able to operate in both directions makes these screw pumps ideal for tank to tank transfer as well as returning excess liquid out of the pipework when transfer is complete.
Yes! All Azcue triple screw pumps are marine type approved by classification societies including Lloyds, Bureau Veritas and ABS. They are also suitable for low sulphur fuel down to 0.1% in line with the 2020 Global Sulphur Cap.
Our Azcue screw pumps are available with optional magnetic coupling. The absence of a mechanical seal to couple the pump and motor eliminates the chance of leaks caused by wear, which is often desirable when the fuel being pumped is flammable.
Yes, screw pumps have excellent suction capabilities without need for a manual priming device.
