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New gear pump 'eclipses' traditional chemical metering pumps

01 July 2006

Think about choosing a metering pump for chemical duties and the automatic response is to go either for a reciprocating plunger pump or a diaphragm pump. Well now's the time to think again, says AxFlow.
The company has just introduced Pulsafeeder's new magnetically driven rotary gear pump, developed specifically for the low flow, moderate pressure applications where diaphragm, piston, progressive cavity, lobe, peristaltic, AOD and reciprocating plunger pumps have traditionally dominated. Using non-metallic materials (such as fluoropolymers) for all wetted components, the all-new Eclipse pump displaces a constant volume of liquid per revolution and delivers a pulse-free linear flow of a wide range of chemicals and aggressive fluids.

But where's the incentive to change from tried and tested pump types that already adequately serve the needs of metering and dosing? Pulsafeeder has designed a pump that comprises just 16 components; it is wholly leak-free because a magnetic coupling eliminates the need for mechanical seals.
There are four models in the Eclipse Series, providing flows from 0.38litre/min to 75.8litre/min and accommodating pressures up to 13.8bar. Should circumstances arise, the Eclipse is capable of dry running for up to 30 minutes.

All wearing parts can be easily replaced by removing the front cover, whilst there is also no need to disconnect piping or motor connections. And because it is a compact design, the Eclipse has a far smaller footprint area, making it ideal for those duties where space and weight have to be taken into account.

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