Watson-Marlow Bredel Pumps has designed a bespoke pump system for J N Bentley Ltd of Skipton, North Yorkshire. The system consists of self-contained desludging units complete with diesel generators for sites operated by Yorkshire Water.
J N Bentley is the contracting part of joint venture company Mott MacDonald Bentley, Yorkshire Water’s Capital Solutions Partner for waste water and sewerage schemes in the north of the Yorkshire Water region.
Watson-Marlow Bredel’s desludging units, consisting of either an SPX40 or SPX50 pump have been designed for operation in remote pumping stations and at locations lacking an adequate power supply. The system is mounted on a steel baseframe, together with battery, electric starter and fuel tank. An operator on-site manually controls starting, stopping and running times.
Ideal for humus sludge, the SPX40 units are fitted with a 0.55kW IP55 geared motor giving a pump speed of 20 rev/min and an output of approximately 1600 litre/hour. The SPX50 units, usually specified for primary sludge, are fitted with a 1.5kW geared motor giving a pump speed of 19 rev/min and an output of approximately 3300 litre/hour.
Although conditions will inevitably vary from site to site, there is usually a suction lift. Discharge is up to 5 bar and pumps are capable of self-priming up to 9.5m water column.
For higher outputs, Watson-Marlow Bredel is able to supply hose pumps or up to four multi-pump units. Other options include units for fully automatic operation with integral control panels enabling pumps to be started and stopped at predetermined times. Weather and/or sound proof covers and larger capacity fuel tanks to facilitate timer controlled operation for periods of up to one week are also available.
Now firmly established in the industry after many years successful operation on a wide variety of sewage sludge pumping duties, Watson-Marlow Bredel hose pumps are produced for outputs up to 80,000 l/h and pressures up to 16 bar.
