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Edward Lowton
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Pumps meet challenge of corrosives
29 April 2016
Aggressive fluids, such as corrosives occur in many applications and an example of where these have been pumped safely and efficiently is at the APHA (Animal & Plant Health Agency) research laboratory in Surrey, where Vaughan Chopper Pumps were first supplied and installed by distributor P&M Pumps in 1997.
The CD4 Duplex (hardened) stainless steel pumps were fitted with special double mechanical seals in Hastelloy C and Kalrez construction. They also featured an external fluid barrier system due to the highly corrosive nature of the chemicals being handled, for example sodium hypochlorite with a concentration ranging from 15 to 20%. They are typically handling flow rates of 18m3/h at heads to 5m and are powered by 7.5kW motors running at 1450 RPM.
The pumps have proved reliable over a long period, requiring only routine maintenance. Furthermore, with the APHA research facility having invested in modifications and upgrades, P&M Pumps has recently supplied additional Vaughan Chopper pumps to the laboratory.
Through their experiences at numerous UK waste water treatment and a wide range of manufacturing and processing sites, P&M Pumps have been able to demonstrate that Vaughan Chopper Pumps are an extremely effective option on the most challenging and varied solids pumping applications
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