More Efficient Pumps Easily Achieved with New Wear Rings

23.10.2020
Independent tests by a major pump manufacturer prove corrosion-free Vesconite Hilube wear rings safely allow reduced running clearances and improve pump efficiency.
More Efficient Pumps Easily Achieved with New Wear Rings

Test results (Image source: Vesconite Bearings)

Bronze casing wear rings with a clearance of 0.3 mm were tested against no-swell Vesconite Hilube at 0.1 mm Pump efficiency increased from 80.50 to 82.55%. Pumping head increased from 30.204 to 30.818 m.

Both these measures are important in the pump industry. Pump efficiency indicates how much of the energy supplied to the pump is converted to pumping fluid.  Pump head, meanwhile, measures the pressure that the pump produces in terms of the height to which the pump can raise water. Head is important where the water source is far from the pumping destination and is vital when users want to increase the pump output.

Importantly, catastrophic failures can be avoided with Vesconite Hilube. With metal rings, if there is contact with the impeller, galling and seizures can quickly occur. But if a Vesconite Hilube wear ring contacts an impeller, it acts as a mechanical fuse and machines away safely, keeping the close clearance.

With a simple swop of the wear ring material, more efficient pumps can be achieved through closer clearances, and wear ring corrosion eliminated.

More articles on this topic

Sulzer Pump Technology Enabling Next Generation Biofuel Production

04.09.2023 -

Sulzer pump technology has been selected by Raízen, Brazil’s largest producer of ethanol from biomass feedstock, as a supplier for their new second-generation ethanol (E2G) processing facilities. Sulzer is supplying a range of special metallurgy, process and utility pumps to process raw materials in support of renewable biofuel production for three new facilities. Made with sugarcane waste from Raizen’s conventional bioethanol production, E2G production has potential to increase efficiency by up to 50% while reducing emissions.

Read more

Hitemp 160 Pump Bushings Successfully Tested in Harsh Fuming Sulphuric Acid

18.08.2023 -

Vesconite Bearings is pleased to announce the successful testing of its Hitemp 160 machined bushings in a demanding application in South Korea. The client, a prominent industrial entity, carried out testing by fully submerging the bushings in an oleum (fuming sulphuric acid at 30% concentration) up to a temperature of 80ºC while utilising an Alloy 20 Stainless Steel shaft on a sump pump.

Read more

Chromium Impellers at Tsurumi

07.06.2023 -

Pump manufacturer Tsurumi is equipping several pump series with ultra-hard chromium impellers free of charge. Once again, Tsurumi wants to define the standard in the market. The Japanese company with its European headquarters in Düsseldorf, Germany, is manufacturer of dewatering pumps for the construction industry.

Read more