Side Channel Pumps
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Liquid ring pumps for clean fluids & gas content
Castle Pumps offer a range of dependable side channel pumps or liquid ring pumps as they are otherwise known. The beauty of the liquid ring pump design is its hybrid design. As it initially functions as a displacement pump it is self priming, but once the side channels are filled, it operates like a centrifugal pump. Our range of side-channel pumps are suitable for high pressure pumping of most clean fluids including water, fuels, light lubricants, and can also handle chemicals such as ammonia pumped at close to boiling point and up to 50% gas content. So, if you need a pumping solution for clean fluids in low flow/high head applications, the side channel pump is perfect for your application. With over 15 years of industry experience, we have already solved your pumping problem whilst helping another client just like you.
products
- Max Flow Rate: Up to 3M³H
- Max Head: 60M
- Max Temperature: 90°C
- Max Viscosity: 200 cP
- Solids: 0mm
- Size: DN25
- Max Flow Rate: 9M³H
- Max Head: 225M
- Max Temperature: 90°C
- Max Viscosity: 200 cP
- Solids: 0mm
- Size: DN25 to DN40
- Max Flow Rate: 45M³H
- Max Head: 225M
- Max Temperature: 130°C
- Max Viscosity: 200 cP
- Solids: 0mm
- Size: DN25 to DN65
- Max Flow Rate: 45M³H
- Max Head: 225M
- Max Temperature: 130°C
- Max Viscosity: 200 cP
- Solids: 0mm
- Size: DN25 to DN65
- Max Flow Rate: 18M³H
- Max Head: 60M
- Max Temperature: 90°C
- Max Viscosity: 200 cP
- Solids: 0mm
- Size: DN25 to DN40
- Max Flow Rate: 900lpm
- Max Head: 55M
- Max Temperature: 165°C
- Max Viscosity: 100 cP
- Solids: 0mm
- Size: 3/4” up to 3”
- Max Flow Rate: 978lpm
- Max Head: 60M
- Max Temperature: 165°C
- Max Viscosity: 100 cP
- Solids: 0mm
- Size: 3/4” to 3”
- Max Flow Rate: 900lpm
- Max Head: 55M
- Max Temperature: 165°C
- Max Viscosity: 100 cP
- Solids: 0mm
- Size: 3/4” up to 3”
- Max Flow Rate: 230lpm
- Max Head: 30M
- Max Temperature: 100°C
- Max Viscosity: 100 cP
- Solids: 0mm
- Size: 3/4" to 2”
- Max Flow Rate: 900lpm
- Max Head: 55M
- Max Temperature: 100°C
- Max Viscosity: 100 cP
- Solid: 0mm
- Size: 1 1/4” to 3”
- Max Flow Rate: 140lpm
- Max Head: 22M
- Max Temperature: 130°C
- Max Viscosity: 100 cP
- Solids: 0mm
- Size: 1 1/4” to 1 1/2”
FAQs
Side channel pumps, or liquid ring pumps as they are otherwise known, are somewhat of a hybrid between a positive displacement pump and a centrifugal pump. Upon start up, a side channel pump begins to operate like a positive displacement pump as it self primes, but soon begins to act like a centrifugal pump once the side channels become filled with fluid.
The liquid is drawn in and enters the impeller blades and the side channel which is open at just one point in the casing, rather than the entire circumference. As the star shaped impeller rotates, the pumped fluid moves back and forth several times between the blades of the impeller and the side channel. This creates a strong transfer of energy and results in an increase in pressure up to 10 times greater than that of centrifugal pump rotating at the same speed.
They are usually designed for low flow, high pressure applications involving any low viscosity, clean fluids and chemicals including those at high temperatures with entrained gas or vapour content up to 50%.
Due to their narrow tolerances, side channel pumps are unable to hande solids. All liquids pumped must be clean and free of particles.
Yes! As the fluid collects in the outer area of the side channel and impeller blades, a liquid ring forms to facilite the self-priming process like a positive displacement pump, making it ideal for difficult suction conditions.
Unfortunately not. The high internal velocity/force that is applied upon the fluidlike a centrifugal pump can damage or alter the consistency of a delicate fluid.
