Vesconite used on multiple-stage cannister pumps

South Africa – A South African irrigation company active in installing and maintaining irrigation systems on golf courses found that the factory-fitted bearings on multi-stage canister pumps had high wear rates. This required ongoing purchase of costly OEM repair kits. In many cases, only a few component parts of the kit were actually required. In response to the problem, Vesconite designed and produced the specific bearings that were actually required for these multiple-stage canister pumps. Vesconite’s no-lubrication, no swell bearings have resulted in a maintenance-free, low cost solution for the company.

Vesconite used on thermal power station condensate pump

Texas, USA – A thermal power station required a high-wearing, low maintenance bearing alternative for a condensate pump assembly. The line shaft and pump bowl bearings used in this vertical spindle pump operate in pure water conditions at a temperature ranging between 30˚C and 60˚C. Removal and maintenance cost on the pump are high. Vesconite Hilube bearings were manufactured and fitted. Resultant performance has been impressive – the replacement bearings have run without fault for four years, on a pump assembly that has a seven yearly maintenance rebuild schedule.

Vesconite used in mobile LPG pumps

South Africa – A liquefied petroleum gas (LPG) pump manufacturer has been distributing its portable LPG gas pumps to rural areas around South Africa. These pumps are particularly suited to remote and mobile sites, which makes it all the more imperative that running costs and pump maintenance be kept to a bare minimum. The manufacturer opted for Vesconite piston-rod bushings and piston discs, due to the polymer’s low friction, high dimensional stability and ability to withstand temperature changes. As a result, maintenance and running costs were significantly reduced.

Texas water utility uses Hilube on vertical spindle pumps

Texas, USA – A water utility in Texas had over the years experimented with different grades of nylon bearings in its vertical spindle pumps, but with little success. The pumps operated in the abrasive conditions found in pit-wells. The combination of debris and sand would eventually lead to excessive swelling of the original bushings and eventual seizure. The original parts were subsequently replaced with Vesconite Hilube, which requires no lubrication, does not swell and can operate in dirty conditions as characterized by the above. The re-fitted pumps have since been running without incident for over a year now.

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