Liverani Falco Side Channel Pump
Chemical Transfer Pump & Seawater Pump
| Key Specifications | |
|---|---|
| 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” |
The Liverani Falco Series are engine driven side channel pumps; a low cost, self priming option. These liquid ring pumps are used for a variety of transfer and offloading applications of clean and low viscosity fluids, typically in the marine industry.
The pump head is from the Nautic range therefore features the double bearing support (front and back) of the pump shaft, double lip seal (front and back) and all bronze construction. The Falco series area lightweight, robust and versatile bronze self priming side channel pump.
Features of the Falco Series Liquid Ring Pump:
- Liquid ring pump with 2 stroke manual start petrol engine
- Carrying handle and integral baseplate
- Self priming up to 6m without the need of a non return valve.
- Reversible operation
- Low risk of cavitation due to low NPSHr
- Short period of dry running
- Transfer of fluids with gases and vapour in suspension without a pulsing effect
- Supplied with BSP M Fittings as standard and free issued hose tail / pipe fittings
- Operating Speeds up to 1400 rpm
Thanks to the following features the Liverani Falco side channel pump is an option that can be applied to many application requirements.
- High entrained gas capabilities - Liquids with up to 50% gas content can be handled without any dry run damage e.g condensate
- Low NPSH required - Can pump liquids close to boiling point without risk of cavitation such as LPG
- High temperature handling - Liquids can be transferred at temperatures up to 165°C which is where other pumping technologies fail
- Reversible operation – Allows cleaning solution to be ran through after use for hygienic pump applications, and tank to tank transfer applications.
- Self-priming up to 6m – Enables the emptying of tanks and drums without a non-return valve or regular manual priming being required.
- Various accessories available - Trolley for portability, bypass valve for nozzle dispensing, control panel, variable speed drive, level sensors and dry run protection
Like centrifugal pumps, side channel pumps have narrow tolerances that make them suited to only clean, low viscosity fluid free from solids. However, their uses do vary. Firstly, side channel pumps can handle high temperature fluids that are pumped close to boiling point and also can pump fluids that contain up to 50% gas content with little interruption to fluid flow. Their hygienic design and their reversible operation means that the Liverani Falco liquid ring pump is ideal for the below applications:
| Marine Applications: | Industrial Applications: |
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MATERIALS OF CONSTRUCTION:
| Description | Bronze | Stainless Steel AISI 316 | Nitrile (NBR) | Natural Rubber (NR) | Neoprene (CR) | EPDM | Silicon (VMQ) | Ceramic / Graphite / NBR | Ceramic / Graphite / Viton | Widia / SiC / Viton |
| Part List | ||||||||||
| Pump Body | • | |||||||||
| Impeller | • | |||||||||
| Shaft | • | |||||||||
| Mechanical Seal | ||||||||||
| Lip Seal | • |
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.
