The Robot range hsd been extended with the RW 6111 series, including models up to 110 m TDH whilst maintaining 50 mm solids capability. The RW 6111 JL pump with 48 kW, 2900 rpm, motor generates heads up to 110 m. The RW 6111 LD is fitted with a 16 kW 1450 rpm motor and reaches heads up to 50 m at 4 pole speed.

Throughout the years, Robot Pumps has been at the forefront of high head pumping in wastewater and in other applications where solids of reasonable size need to be pumped. It has been proved during more than 20 years of practical experience that vortex pumps show higher efficiencies than channel impeller and similar pumps at low flows. The vortex principle at the same time ensures long term reliability because of its specific features of low internal static pressures.

Different to channel impeller pumps, vortex pumps create limited static pressure inside the volute, producing mainly velocity head. This results in lower shaft and bearing loads and less pressure on the mechanical seal, which extends seal life. Also, vortex pumps can run at even zero flow without damage to pump, motor or shaft seal. Naturally flow velocities in the discharge pipes must be considered to avoid settlement of solids.

These latest additions to the Robot pump range complement existing pumps of up to 75 m TDH with 80 mm solids capacity and up to 45 m TDH with 100 mm solids.

Though originally designed for dewatering of deep tunnels, these high head pumps are equally suitable for water intake stations, long sewerage and other transportation lines and for high static head applications.

As available for all Robot pumps, the Robot guide rail coupling system provides a leak free boltless coupling system that works independently from the weight and pressure of the pump. This system allows quick and easy maintenance.

Please contact us for further information.

Sewage pumps for the Mid-North Coast Correctional Centre, near Kempsey N.S.W. Design duty of 9.5 lps at 90 m TDH. Two pumps (duty & standby), commissioned May 2002

Sewage pumps for Waratah Bay, Victoria. Two pumps (duty & standby), awaiting commissioning.