A large concrete products manufacturing site in Auckland were having issues with the pumps pumping waste water from their settlement pond. Mechanical seals would fail regularly from being dry run and – if the dry running did not wreck them – the fine cement particles in the waste water would. Typical mean time between services was 6 months or less.
CASE STUDIES
Verderflex Hoses In Bredel SPX Series Pumps
A waste water treatment plant had been using Bredel pumps for pumping sludge around the plant. The hose life that they were getting from the Bredel hoses varied between 1,000,000 – 3,000,000 revolutions. This life was less than ideal and – as the operator put it – they always failed on a weekend or a Friday night!
Truck Mounted Bitumen Pump
A large roading firm wanted a pump for unloading bitumen from their trailer at a flowrate of 600l/min. The pump needed to be hydraulic driven as electrical power was not feasible. The bitumen temperature was between 160 – 180°C.
Trade Waste Sump Pump
A large dairy factory required a pump for pumping their trade waste up and out of a sump and into their trade waste treatment plant.
Resin Transfer Pump
A customer required a pump to transfer resin from delivery vehicles to bulk storage tanks. The key requirements were reliability and good suction (as the pump had to be mounted above a bunded area and still be able to pull the viscous resin up and over the wall in order to transfer it to the tanks). The flowrate required was 30,000l/h against a pressure of 2 – 3 bar.