Production • Processing • Handling
Fig. 2. The skid has a 10-ft container footprint and can also be delivered as a combination of two smaller skids. Is has no moving parts. Its energy demand is restricted to below 10kW at 380 Volts and around 50Nm3 work air. Process water is fed at atmospheric conditions.
provided consistent results. Te free oil content was typically reduced from 2,000 – 500ppm to well below 15ppm. Te process parameters proved easy to control and correspond to changes in input and output. Onshore tests on slop water achieved reductions
from 1,000ppm to 2ppm in a single pass. Update, June 2012: Two major operators have committed to commercial development and two units are under construction. ●
Enter 68 or ✔ at
www.engineerlive.com/iog
Paul Schouten is with Brilliant Water Solutions BV, The Hague The Netherlands.
www.brilliantwater.org Eric Wals is with Oilfield Division, Twin Filter BV, Zaandam, The Netherlands.
www.twinfilter.com
Screw pumps deliver lubricating, non-abrasive and chemically neutral liquids
T
he L series from KRAL AG gets its name from its long construction. The long spindles allow a discharge
pressure of up to 900 psi. From the smallest to the largest size, all L pumps are
generally available with top and inline flanges. Reliable starting, minimum wear and easy
maintenance keep operation simple. The main spindle of the L pump can be disassembled together with the seal casing, as all rotating parts are pre-assembled in the removable end cover. This makes the L series particularly easy to assemble, dismantle and maintain. KRAL L pumps use lifetime- lubricated, external ball bearings. FKM sealing discs with high temperature
68
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stability prevent wash out. This increases the life of the bearing and reduces maintenance costs. The pump casing is specially heat treated to improve
its anti-friction properties and minimize wear. There are different types of DIN 24960-compliant mechanical seals to choose from, depending on the operational requirements. The hard face mechanical seal option contains graphite
for reduced friction in dry running conditions. Also available are magnetic coupling and radial shaft seals. The O-rings of the hard face mechanical seal have a high fluorine content. This high quality material is chemically stable and can tolerate high temperatures
without lasting deformation. Pump heating is available as an option and ensures easy start-up, even at low ambient temperatures. The one-piece casing design guarantees that
pressure-side leakages are a thing of the past. The flange is designed in compliance with ISO 3019. This allows the pump to be connected with conventional standard pump brackets. This design minimises the volume required by the magnetic coupling option. ●
Enter 68A or ✔ at
www.engineerlive.com/iog
KRAL AG is based in Lustenau, Austria.
www.kral.at
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