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GrowHow replaces Mono pump with new model after a successful 30 years

A Mono Compact C progressing cavity pump provided by NOV has been specified as a replacement for a previous Mono pump that had operated without problems for over 30 years.

The new pump is being used in a fertiliser production process by GrowHow, a UK fertiliser manufacturer and a supplier to the chemical process industry.

GrowHow had been using an original Mono SH80 pump for a demanding effluent transfer duty and the pump had given good service for over three decades.

‘The original pump was still working well, but unfortunately it had been discontinued and GrowHow decided to upgrade to the latest pump design,’ explains Mono account manager Paul Green. ‘We proposed a Compact C range pump as the most appropriate modern alternative.’

GrowHow’s Chris Smith continues: ‘We needed something which combined excellent suction lift performance with the ability to handle a high suspended solids content. It also had to be able to withstand the very aggressive nature of the effluent, so that it could provide us with a high level of reliability.’

The Compact C range pump is being used to pump nutrient-rich effluent at the GrowHow production plant at Ince, near Chester.

Driven by a fixed-speed gearbox, it operates at 245rpm, handles a 3.25 bar pressure and provides a 19m3/h capacity.

It draws the effluent from an interceptor pit on a 3m lift, and transfers it over 100m to a holding sump.

The effluent is finally used as fertiliser by local farmers.

GrowHow mounted the Mono Compact C pump on a trolley so that it can be moved around the site to draw effluent from different sump tanks.