Pumps - Vesco Plastics Australia

Phone
+61 (03) 9796 4098

Address
3 Carl Court, Hallam, Victoria, 3803

Vesconite in the

Pumps Industry

VESCONITE PUMPS

DIMENSIONAL STABILITY AND ZERO LAMINATION

Vesconite has been used for decades in a wide range of specialized pump bushing applications. The material thrives in water and exhibits excellent dimensional stability, with zero delamination. The result is low downtime and associated hassle factor. Its friction coefficient range of 0.1 – 0.2 allows for dry starting – an issue commonly associated with high wear rates in traditional bushing materials. Corrosion of the bushing is entirely eliminated with Vesconite, Vesconite Hilube is recommended for most pump applications.

MATERIAL COMPARISON

In the case of pump impeller and case wear rings, tight clearances are required. Swelling and distortion can be an issue with traditional bushing materials. This is not the case with Vesconite due to its virtually zero water absorption rate and dimensional stability.
Unlike bronze or rubber bushings, fresh and saltwater serves as an effective lubricant for Vesconite. This makes it an ideal material for pump bowl bushings and stuffing box bushings.

BENEFITS FOR PUMPS

Vesconite does not swell or distort in water.
Vesconite does not delaminate.
Vesconite does not corrode.
Vesconite requires no lubrication.
Vesconite is resistant to oils and fuels.
Vesconite bushings are easy to fit and remove.
Vesconite prolongs shaft life.

COMMON PUMP APPLICATIONS

Lineshaft bushings in vertical turbine pumps.
Support bushings and wear rings in pumps.
Stuffing box bushings in vertical turbine pumps.
Impeller support bushings in sump pumps.

Pumps Case Studies

VESCONITE BUSHING FITTED TO MULTISTAGE MRA PUMP

The MRA Multistage pump is used to pump water from one level to the next in certain gold mines. The renewable bush on the MRA pump has an outside diameter of 140 mm, inside diameter of 120 mm, is 165 mm long and has a 180 mm diameter flange 10 mm thick. The pump runs at high revolutions and the bush acts as a seal. The use of Vesconite has resulted in much longer wear life than the traditional phosphor bronze bush. The Vesconite replacement was achieved at approximately one third of the bronze bush price.
VESCONITE BEARINGS FITTED TO POWER STATION COOLING PUMPS

Vesconite bearings replaced the original rubber bushings on refurbished power station pumps. In many cases large diameter rubber bearings have to be specially manufactured to order, yet ready to machine Vesconite bushing stocks are kept in many worldwide centers. At this power station, a further advantage noted is that the installed running clearance was much closer for the Vesconite bearings than was possible with the original cutlass rubber bearings. The benefit is that the impeller does not run on the casing and therefore the pump is more efficient, both in respect of pumping ability and a saving in power consumption.
VESCONITE SELECTED FOR IMPROVED ENERGY EFFICIENCY

An Australian company that specialises in pump refurbishment has included Vesconite pump bushings as part of its energy-reducing refurbishment package. The pumps that it repairs have used bronze bushings historically and this has been expensive and caused damage to shafts. The Vesconite bushings, in contrast, offer the advantage of being able to run with small clearances, which causes less recycle or less movement of pressurised water from the previous stage to the next stage. Water utilities in the region continue to rely on the pump refurbishment firm, which is also a supplier of OEM pumps, seals and filtration systems.

Industrial Applications

Industrial Machinery

Heavy Transport