oil tank cleaner
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THE BIGGEST Jetvac unit of its kind yet built has been supplied to a Middle East refinery by Whale Tankers Ltd of Solihull.
Built on a specially tropicalised Foden RC29 / 38 six wheeled chassis, the tanker has a total capacity of 18,160 litres (4000 gal).
Designed to make oil tank cleaning a one-vehicle job, in stead of using vacuum tankers in conjunction with highpressure pump jets, the Jetvac has a separate 2270 litre (500 gal) clean water tank for the high-pressure pump. The rear compartment of the tipping tank can hold 15,890 lit (3500 gal) and is all vacuum-filled load space.
In operation, viscous oily sediments are hosed from the storage containers walls and bases and are collected by the Jetvac which converts them into an emulsified slurry by high-pressure water jet.
Auxiliary Lister diesel engines avoid the need to run the tanker's main power unit for long periods.
The high-pressure pump has an output of 122 lit/min at 117 bars (27 gal/min at 1.700psi through 90m (300ft) of 18mrn (0.75in) hose carried on an hydraulically powered reel side mounted at the rear of the trailer.