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[August 2004]
Tough, Compact Gear Pumps Handle High Pressures
A new series of tough, durable yet compact, close coupled gear pumps which are capable of handling differential pressures up to 24 bar and flows to 75l/min has recently been introduced by Michael Smith Engineers. The Liquiflo Max(tm) Series is available in either 316 stainless steel or titanium precision machined, heavy duty bodies to ensure long service life, even in high pressure applications where other types of gear pumps may fail.
Said to be ideally suited to most chemical pumping applications, Liquiflo Max pumps are offered in seven sizes in either single or double mechanical seal or magnetic drive configurations. The pumps incorporate a number of important features contributing to improved performance and optimum reliability.
An example is a new design of helical gear which is smoother and quieter than spur gears to ensure reduced pulsations and therefore less stress on internal components, while all wearplates have specifically designed relief paths to eliminate hydraulically induced gear separation forces.
In addition to offering a wide selection of gear and shaft materials, Liquiflo offers an integral (one-piece) gear shaft arrangement using heat treated 17-4 PH SS material. This Precipitate Hardened (PH) stainless steel provides optimum corrosion resistance and so extends the pumps' suitability for difficult chemical applications.
To facilitate easy repair and maintenance, the pump alignment pins are substantially larger in diameter than pins typically used in other pump designs. This means that pump assembly and disassembly is easier because the larger pins are easier to handle and they will not bend or distort, even if pliers or other mechanical devices are used.
www.michael-smith-engineers.co.uk
ENDS